阅读说明：本技术 管井悬吊保护结构及砌体管井原位保护施工方法 (Pipe well suspension protection structure and masonry pipe well in-situ protection construction method ) 是由 阳凤萍 周书东 张彤炜 谢璋辉 廖俊晟 刘亮 任夏 梁荣耀 麦镇东 叶雄明 张益 于 2019-09-04 设计创作，主要内容包括：本发明提供了一种管井悬吊保护结构,其包括内吊板牵引件、外吊板牵引件、承重梁、用于与管井之内侧壁连接的内吊板和用于与管井之外侧壁连接的外吊板,承重梁位于内吊板的上方,内吊板牵引件绕设于承重梁,且内吊板分别挂设于内吊板牵引件的两端,外吊板牵引件绕设于承重梁,且外吊板分别挂设于外吊板牵引件的两端。本发明的管井悬吊保护结构能在复杂环境下明挖基坑砌体管井的过程中有效保护砌体管井的整体结构并有效避免砌体管井的开裂以提高施工的便利性和安全性。本发明还提供一种砌体管井原位保护施工方法。(The invention provides a pipe well suspension protection structure which comprises an inner hanging plate traction piece, an outer hanging plate traction piece, a bearing beam, an inner hanging plate and an outer hanging plate, wherein the inner hanging plate is connected with the inner side wall of a pipe well, the outer hanging plate is connected with the outer side wall of the pipe well, the bearing beam is positioned above the inner hanging plate, the inner hanging plate traction piece is wound on the bearing beam, the inner hanging plate is respectively hung at two ends of the inner hanging plate traction piece, the outer hanging plate traction piece is wound on the bearing beam, and the outer hanging plate is respectively hung at two ends of the outer hanging plate traction piece. The pipe well suspension protection structure can effectively protect the whole structure of the masonry pipe well in the process of open excavation of the foundation pit masonry pipe well in a complex environment and effectively avoid cracking of the masonry pipe well so as to improve convenience and safety of construction. The invention also provides an in-situ protection construction method for the masonry pipe well.)

1. The utility model provides a protection architecture is suspended in midair to pipe shaft for protection brickwork pipe shaft, a serial communication port, including interior hanger plate pull, outer hanger plate pull, spandrel girder, be used for with interior hanger plate that the inside wall of pipe shaft is connected with be used for with the outer hanger plate that the outside wall of pipe shaft is connected, the spandrel girder is located the top of interior hanger plate, interior hanger plate pull around locating the spandrel girder, just interior hanger plate hangs respectively and locates the both ends that interior hanger plate pulls, outer hanger plate pull around locating the spandrel girder, just outer hanger plate hangs respectively and locates the both ends of outer hanger plate pull.

2. The pipe well suspension protection structure of claim 1, further comprising inner hanger plate reinforcements and outer hanger plate reinforcements, wherein the inner hanger plate reinforcements penetrate through the inner hanger plate and extend towards the outer hanger plate, the outer hanger plate reinforcements penetrate through the outer hanger plate, and the inner hanger plate reinforcements are connected with the outer hanger plate reinforcements.

3. The tubular well hanging protection structure of claim 1, wherein the inner hanging plate comprises an inner hanging bottom plate and a pressing edge for covering the inner side wall of the tubular well, and the pressing edge is formed by extending upwards from the outer edge of the inner hanging bottom plate.

4. The pipe well suspension protection structure according to claim 1, wherein the outer hanger plate comprises a retaining wall for covering the outer side wall of the pipe well and a bearing bottom plate for bearing the pipe well, the retaining wall is formed by extending upwards from the outer edge of the bearing bottom plate; the bearing bottom plate is of an annular structure.

5. The tube well suspension protection structure of claim 1, further comprising a support beam column for carrying the outer hanger plate.

6. The tubular well hanging protection structure according to claim 1, further comprising a connecting pipe pulling member for fixing the connecting pipe of the tubular well, wherein the connecting pipe pulling member is wound between the bearing beam and the connecting pipe of the tubular well.

7. The in-situ protection construction method of the masonry pipe well is characterized by comprising the following steps of:

(1) providing an inner hanger plate traction piece, an outer hanger plate traction piece, a bearing beam, an inner hanger plate used for being connected with the inner side wall of the tubular well and an outer hanger plate used for being connected with the outer side wall of the tubular well;

(2) constructing bearing side walls on two sides of the pipe well, excavating soil in pits in the two bearing side walls, removing the upper part of the pipe well, and bearing the bearing beam on the bearing side walls;

(3) forming an inner hanging plate used for being connected with the inner side wall of the pipe well through pouring, winding the inner hanging plate traction piece on the bearing beam, respectively hanging the inner hanging plate at two ends of the inner hanging plate traction piece, and excavating soil in a pit to the bottom of the pipe well;

(4) forming an outer hanging plate used for being connected with the outer side wall of the pipe well through pouring, winding the outer hanging plate traction piece on the bearing beam, and respectively hanging the outer hanging plate at two ends of the outer hanging plate traction piece;

(5) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the supporting beam column;

(6) backfilling soil to the outer hanging plate, compacting the soil, removing the bearing beam, and removing the inner hanging plate traction piece and the outer hanging plate traction piece;

(7) and backfilling the soil to the ground height.

8. The masonry pipe well in-situ protection construction method according to claim 7, wherein the step (3) further comprises the steps of:

step (31) providing a connecting pipeline traction piece, excavating soil in pits in two bearing side walls to the bottom of the connecting pipeline, and winding the connecting pipeline traction piece between the bearing beam and the connecting pipeline of the pipe well;

step (32) providing inner hanger plate steel bars, penetrating the inner hanger plate steel bars into the pipe well, and forming an inner hanger plate for connecting with the inner side wall of the pipe well through pouring, so that the inner hanger plate steel bars are also penetrated into the inner hanger plate;

and (33) winding the inner hanging plate traction piece on the bearing beam, respectively hanging the inner hanging plates at two ends of the inner hanging plate traction piece, and excavating soil in the pit to the bottom of the pipe well.

9. The masonry pipe well in-situ protection construction method according to claim 8, wherein the step (4) further comprises the steps of:

step (41) providing outer hanger plate reinforcing steel bars, connecting the inner hanger plate reinforcing steel bars with the outer hanger plate reinforcing steel bars, and forming an outer hanger plate used for being connected with the outer side wall of the pipe well through pouring to enable the outer hanger plate reinforcing steel bars to penetrate through the outer hanger plate;

and (42) winding the outer hanging plate traction piece on the bearing beam, and respectively hanging the outer hanging plates at two ends of the outer hanging plate traction piece.

10. The masonry pipe well in-situ protection construction method according to claim 9, wherein the step (5) further comprises the steps of:

step (51) providing a support beam column, and installing the support beam column below the outer hanger plate;

and (52) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the supporting beam column.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a pipe well suspension protection structure and a masonry pipe well in-situ protection construction method.

Background

In the underground passage construction process, traffic disintegration and pipeline moving and changing are generally considered, pipelines generally move before construction, but when certain pipelines which are difficult to move or have higher importance cannot move, the pipelines and pipe wells are protected by the way of hanging the pipelines and the pipe wells in the passage construction.

In the conventional pipeline moving and modifying process, a pipeline well for connecting a newly-built pipeline needs to be arranged, the newly-built pipeline is arranged after the newly-built pipeline is completed, the operation of the existing pipeline is stopped, the new pipeline is started, a newly-built pipe well and the pipeline need to be arranged in the process, time, space and manpower and material resources are greatly consumed, meanwhile, the pipe well is usually connected with a plurality of pipelines, and the problems of long construction period, high engineering cost and the like can be caused if the pipeline moving and modifying construction is adopted.

In the conventional process of suspending and protecting a pipe well, an external suspension mode is usually adopted for suspension protection of a pipeline, the protection cases of the rainwater and sewage masonry pipe well in the domestic foundation pit engineering are few, so the external suspension mode of the pipeline is usually applied to the pipe well, however, the suspension scheme is different due to the difference of pipe well materials, the masonry structure is a compression and tension-free shear structure, a reasonable suspension protection scheme is required to be adopted according to the mechanical characteristics and the engineering characteristics of the masonry structure, if the masonry pipe well is directly suspended externally and then excavated, the characteristics of the masonry pipe well are easily ignored, masonry cracking and even structural damage occur to the masonry pipe well, the service function of the masonry pipe well is lost, and the construction period is delayed.

Therefore, a pipe well suspension protection structure and a masonry pipe well in-situ protection construction method are urgently needed to solve the problems.

Disclosure of Invention

The invention aims to provide a pipe well suspension protection structure which can effectively protect the whole structure of a masonry pipe well and effectively avoid cracking of the masonry pipe well in the process of open excavation of a foundation pit masonry pipe well in a complex environment so as to improve convenience and safety of construction.

Another object of the present invention is to provide an in-situ protection construction method for a masonry pipe well, which can effectively protect the overall structure of the masonry pipe well and effectively avoid cracking of the masonry pipe well in the process of open excavation of the foundation pit masonry pipe well in a complex environment, so as to improve convenience and safety of construction.

In order to achieve the above purpose, the present invention provides a pipe well suspension protection structure for protecting a masonry pipe well, the pipe well suspension protection structure includes an inner hanger plate traction member, an outer hanger plate traction member, a bearing beam, an inner hanger plate for connecting with an inner sidewall of the pipe well, and an outer hanger plate for connecting with an outer sidewall of the pipe well, the bearing beam is located above the inner hanger plate, the inner hanger plate traction member is wound around the bearing beam, the inner hanger plate is respectively hung at two ends of the inner hanger plate traction member, the outer hanger plate traction member is wound around the bearing beam, and the outer hanger plate is respectively hung at two ends of the outer hanger plate traction member.

Compared with the prior art, the pipe well suspension protection structure is provided with an inner hanger plate traction piece, an outer hanger plate traction piece, a bearing beam, an inner hanger plate connected with the inner side wall of a pipe well and an outer hanger plate connected with the outer side wall of the pipe well, wherein the bearing beam is positioned above the inner hanger plate, the inner hanger plate traction piece is wound on the bearing beam, the inner hanger plate is respectively hung at two ends of the inner hanger plate traction piece, so that the inner hanger plate traction piece provides upward traction for the inner hanger plate, the inner hanger plate is connected with the inner side wall of the pipe well, an effective whole is formed between the pipe well and the bearing beam, the outer hanger plate traction piece is wound on the bearing beam, the outer hanger plates are respectively hung at two ends of the outer hanger plate traction piece, so that the outer hanger plate traction piece provides upward traction for the outer hanger plate, and the outer hanger plate is connected with the outer side wall of the pipe well, so that an effective whole is formed between the pipe well and the bearing beam, the outer hanging plate and the inner hanging plate enable the pipe well to be always in a pressed state so as to jointly protect the two outer side surfaces in the pipe well, so that the safety of masonry pipe well protection construction is realized, the traditional removal and alteration of the existing pipe well are avoided, the stress is clear, the safety degree is high, the whole construction operation time is shortened, the heavy and complex alteration operation is reduced, and the economic benefit is improved; meanwhile, the masonry pipe well is protected through the inner hanging plate and the outer hanging plate, and the inner hanging plate traction piece and the outer hanging plate traction piece are directly connected with the bearing beam respectively, so that the pipe well of the masonry structure is kept in a pressed state, cracks caused by the fact that the masonry pipe well is pulled are avoided, and safety redundancy is improved; in addition, because the spandrel girder, the inner hanging plate traction piece and the outer hanging plate traction piece are of detachable structures, the rapid recovery can be realized during the disassembly, the repeated utilization is realized, and the overall cost of the project is reduced.

Preferably, the pipe well suspension protection structure further comprises an inner hanger plate steel bar and an outer hanger plate steel bar, the inner hanger plate steel bar penetrates through the inner hanger plate and extends towards the outer hanger plate, the outer hanger plate steel bar penetrates through the outer hanger plate, and the inner hanger plate steel bar is connected with the outer hanger plate steel bar.

Preferably, the inner hanging plate comprises an inner hanging bottom plate and a pressing edge for wrapping the inner side wall of the tube well, and the pressing edge is formed by extending upwards from the outer edge of the inner hanging bottom plate.

Preferably, the outer hanger plate comprises a retaining wall for covering the outer side wall of the tube well and a bearing bottom plate for bearing the tube well, and the retaining wall is formed by extending upwards from the outer edge of the bearing bottom plate; the bearing bottom plate is of an annular structure.

Preferably, the pipe well suspension protection structure further comprises a support beam column for carrying the outer hanging plate.

Preferably, the pipe well suspension protection structure further comprises a connecting pipeline traction piece for fixing a connecting pipeline of the pipe well, and the connecting pipeline traction piece is wound between the bearing beam and the connecting pipeline of the pipe well.

In order to achieve the aim, the invention provides an in-situ protection construction method for a masonry pipe well, which comprises the following steps: (1) providing an inner hanger plate traction piece, an outer hanger plate traction piece, a bearing beam, an inner hanger plate used for being connected with the inner side wall of the tubular well and an outer hanger plate used for being connected with the outer side wall of the tubular well; (2) constructing bearing side walls on two sides of the pipe well, excavating soil in pits in the two bearing side walls, removing the upper part of the pipe well, and bearing the bearing beam on the bearing side walls; (3) forming an inner hanging plate used for being connected with the inner side wall of the pipe well through pouring, winding the inner hanging plate traction piece on the bearing beam, respectively hanging the inner hanging plate at two ends of the inner hanging plate traction piece, and excavating soil in a pit to the bottom of the pipe well; (4) forming an outer hanging plate used for being connected with the outer side wall of the pipe well through pouring, winding the outer hanging plate traction piece on the bearing beam, and respectively hanging the outer hanging plate at two ends of the outer hanging plate traction piece; (5) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the supporting beam column; (6) backfilling soil to the outer hanging plate, compacting the soil, removing the bearing beam, and removing the inner hanging plate traction piece and the outer hanging plate traction piece; (7) and backfilling the soil to the ground height.

Compared with the prior art, the masonry pipe well in-situ protection construction method combines an inner hanging plate traction piece, an outer hanging plate traction piece, a bearing beam, an inner hanging plate used for being connected with the inner side wall of a pipe well, an outer hanging plate used for being connected with the outer side wall of the pipe well and the like, wherein the bearing beam is positioned above the inner hanging plate, the inner hanging plate traction piece is wound on the bearing beam, the inner hanging plate is respectively hung at the two ends of the inner hanging plate traction piece, so that the inner hanging plate traction piece provides upward traction for the inner hanging plate, the inner hanging plate is connected with the inner side wall of the pipe well, an effective whole is formed between the pipe well and the bearing beam, the outer hanging plate traction piece is wound on the bearing beam, the outer hanging plate is respectively hung at the two ends of the outer hanging plate traction piece, so that the outer hanging plate traction piece provides upward traction for the outer hanging plate, and the outer hanging plate is connected with the outer side wall of the pipe well, the outer hanging plate and the inner hanging plate enable the pipe well to be always in a pressed state so as to jointly protect the two outer side faces in the pipe well, so that the safety of masonry pipe well protection construction is realized, the traditional dismantling and moving and modifying of the existing pipe well are avoided, the stress is clear, the safety degree is high, the whole construction operation time is shortened, heavy and complex moving and modifying operation is reduced, and the economic benefit is improved; meanwhile, the masonry pipe well is protected through the inner hanging plate and the outer hanging plate, and the inner hanging plate traction piece and the outer hanging plate traction piece are directly connected with the bearing beam respectively, so that the pipe well of the masonry structure is kept in a pressed state, cracks caused by the fact that the masonry pipe well is pulled are avoided, and safety redundancy is improved; in addition, because the spandrel girder, the inner hanging plate traction piece and the outer hanging plate traction piece are of detachable structures, the rapid recovery can be realized during the disassembly, the repeated utilization is realized, and the overall cost of the project is reduced.

Preferably, the step (3) further comprises the steps of: step (31) providing a connecting pipeline traction piece, excavating soil in pits in two bearing side walls to the bottom of the connecting pipeline, and winding the connecting pipeline traction piece between the bearing beam and the connecting pipeline of the pipe well; step (32) providing inner hanger plate steel bars, penetrating the inner hanger plate steel bars into the pipe well, and forming an inner hanger plate for connecting with the inner side wall of the pipe well through pouring, so that the inner hanger plate steel bars are also penetrated into the inner hanger plate; and (33) winding the inner hanging plate traction piece on the bearing beam, respectively hanging the inner hanging plates at two ends of the inner hanging plate traction piece, and excavating soil in the pit to the bottom of the pipe well.

Preferably, the step (4) further comprises the steps of: step (41) providing outer hanger plate reinforcing steel bars, connecting the inner hanger plate reinforcing steel bars with the outer hanger plate reinforcing steel bars, and forming an outer hanger plate used for being connected with the outer side wall of the pipe well through pouring to enable the outer hanger plate reinforcing steel bars to penetrate through the outer hanger plate; and (42) winding the outer hanging plate traction piece on the bearing beam, and respectively hanging the outer hanging plates at two ends of the outer hanging plate traction piece.

Preferably, the step (5) further comprises the steps of: step (51) providing a support beam column, and installing the support beam column below the outer hanger plate; and (52) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the supporting beam column.

Drawings

Fig. 1 is a schematic perspective view of a pipe well suspension protection structure according to the present invention in a use state.

Fig. 2 is a sectional view of the pipe well suspension protection structure of the present invention and in a use state.

Fig. 3 is a schematic structural view of the pipe well suspension protection structure of the present invention in a use state.

Fig. 4 is another perspective view of the pipe well suspension protection structure of the present invention in use.

Fig. 5 is another perspective view of the pipe well suspension protection structure of the present invention in use.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the pipe well hanging protection structure 100 of the present invention is used for protecting a masonry pipe well 200, and comprises an inner hanging plate traction member 1, an outer hanging plate traction member 2, a bearing beam 3, inner hanging plate reinforcing steel bars 6, outer hanging plate reinforcing steel bars 7, an inner hanging plate 4 connected to an inner sidewall of the pipe well 200, an outer hanging plate 5 connected to an outer sidewall of the pipe well 200, a connecting pipe traction member 10 for fixing a connecting pipe 300 of the pipe well 200, a supporting beam column 8 for supporting the outer hanging plate 5, and at least two supporting sidewalls 9, wherein the supporting sidewalls 9 are symmetrically arranged, the supporting sidewalls 9 jointly support the bearing beam 3, the bearing beam 3 is located above the inner hanging plate 4 through the supporting sidewalls 9, the inner hanging plate traction member 1 is wound around the bearing beam 3, and the inner hanging plate 4 is respectively hung at two ends of the inner hanging plate traction member 1, when connected, a hook can be arranged on the inner hanging plate 4, the inner hanging plate traction member 1 is connected to the inner hanging plate 4 through the hook, so that the inner hanger plate traction member 1 provides an upward traction force for the inner hanger plate 4, and the inner hanger plate 4 is connected with the inner side wall of the pipe well 200, so that an effective whole body is formed between the pipe well 200 and the bearing beam 3, preferably, the inner hanger plate 4 can form a fixed connection between the inner hanger plate 4 and the pipe well 200 by a cast-in-place concrete method, it can be understood that the fixation between the two can also be realized by a steel bar anchoring and gluing method, the outer hanger plate traction member 2 is wound on the bearing beam 3, and the outer hanger plates 5 are respectively hung at two ends of the outer hanger plate traction member 2, when in connection, a hook can be arranged on the outer hanger plate 5, the outer hanger plate traction member 2 realizes the connection with the outer hanger plate 5 through the hook, so that the outer hanger plate traction member 2 provides an upward traction force for the outer hanger plate 5, and the outer hanger plate 5 is connected with the outer side wall of the pipe well 200, the outer hanging plate 5 can be fixedly connected with the pipe well 200 in a concrete pouring mode, and the outer hanging plate 5 and the inner hanging plate 4 can enable the pipe well 200 to be always in a pressed state to jointly protect the inner side surface and the outer side surface of the pipe well 200, so that the safety of the masonry pipe well 200 protection construction is realized, the traditional dismantling and moving and changing of the existing pipe well 200 are avoided, the stress is clear, the safety degree is high, the whole construction operation time is shortened, heavy and complex moving and changing operations are reduced, and the economic benefit is improved; meanwhile, the masonry pipe well 200 is protected through the inner hanging plate 4 and the outer hanging plate 5, the masonry pipe well 200 is directly connected with the bearing beam 3 through the inner hanging plate traction piece 1 and the outer hanging plate traction piece 2 respectively, the pipe well 200 of a masonry structure is kept in a compression state, cracks caused by the fact that the masonry pipe well 200 is pulled are avoided, safety redundancy is improved, the pressure-bearing or pulled portions of the inner hanging plate traction piece 1 and the outer hanging plate traction piece 2 are protected through plastic pipes so as to diffuse stress, the tension centers of the inner hanging plate traction piece 1 and the outer hanging plate traction piece 2 are the centers of the pipe well 200 and are not eccentric, the pipe well 200 needs to be subjected to graded treatment in the connection process, and the tension force is based on design; the supporting beam column 8 is borne at the bottom of the outer hanging plate 5, the overall stability of the structure is improved to further realize protection, the supporting beam column 8 is embedded in soil in a pit, when the construction height is below the outer hanging plate 5, the supporting beam column 8 provides a supporting function, so that the pipe well 200 of the masonry structure is always kept in a pressed state, cracks caused by the fact that the masonry pipe well 200 is pulled are avoided, and it can be understood that when the construction height is at the bottom of the outer hanging plate 5, the supporting can be provided by the soil in the pit, and therefore the supporting beam column 8 is not arranged; the inner hanger plate steel bars 6 penetrate through the inner hanger plate 4 and extend towards the outer hanger plate 5, the outer hanger plate steel bars 7 penetrate through the outer hanger plate 5, and the inner hanger plate steel bars 6 are connected with the outer hanger plate steel bars 7; the pipe shaft 200 is generally provided with a plurality of connection pipes 300 for communication with the outside, and in order to fix the connection pipes 300, a connection pipe drawing member 10 is wound between the girder 3 and the connection pipes 300 of the pipe shaft 200, therefore, the connecting pipeline 300 is supported by the connecting pipeline traction piece 10, the connecting pipeline 300 is prevented from being damaged in the construction process, the pressure-bearing or pulled part of the connecting pipeline traction piece 10 is protected by a plastic pipe so as to diffuse stress, the tension center of the connecting pipeline traction piece 10 is the center of the pipe well 200, no eccentricity exists, the pipe well 200 needs to be subjected to graded tensioning treatment in the connection process, the tensioning force is based on the design, preferably, the inner hanger plate traction piece 1, the outer hanger plate traction piece 2 and the connecting pipeline traction piece 10 are steel cables, the inner hanger plate 4 and the outer hanger plate 5 are reinforced concrete plates, and the inner hanger plate steel bars 6 and the outer hanger plate steel bars 7 are reinforcing steel bars for fastening. More specifically, the following:

referring to fig. 1 and 3, the inner hanging plate 4 includes an inner hanging bottom plate 41 and a pressing edge 42 for covering the inner wall of the tube well 200, and the pressing edge 42 is formed by extending the outer edge of the inner hanging bottom plate 41 upward, so that the inner hanging bottom plate 41 and the pressing edge 42 together form a covering for the inner wall of the bottom of the tube well 200, and further the pressing for the tube well 200 is realized under the traction action of the inner hanging plate traction member 1. Referring to fig. 1 and 3, the outer hanger plate 5 includes a protection wall 51 for covering the outer side wall of the tube well 200 and a bearing bottom plate 52 for bearing the tube well 200, the protection wall 51 is formed by extending the outer edge of the bearing bottom plate 52 upwards, so that the protection wall 51 and the bearing bottom plate 52 together form a coating for the outer side wall of the bottom of the tube well 200, and further the tube well 200 is pressed under the traction action of the outer hanger plate traction member 2, and the tube well 200 is always in a pressed state by the inner hanger plate 4 and the outer hanger plate 5 together, so that the bad phenomena of cracks and the like caused by the stretching of the tube well 200 are avoided, and preferably, the bearing bottom plate 52 is in a ring structure, thereby being more beneficial to the installation of the bearing bottom plate 52.

Compared with the prior art, the pipe well suspension protection structure 100 of the invention is provided with an inner hanger plate traction piece 1, an outer hanger plate traction piece 2, a bearing beam 3, an inner hanger plate 4 connected with the inner side wall of a pipe well 200 and an outer hanger plate 5 connected with the outer side wall of the pipe well 200, wherein the bearing beam 3 is positioned above the inner hanger plate 4, the inner hanger plate traction piece 1 is wound on the bearing beam 3, the inner hanger plate 4 is respectively hung at two ends of the inner hanger plate traction piece 1, so that the inner hanger plate traction piece 1 provides an upward traction force for the inner hanger plate 4, and the inner hanger plate 4 is connected with the inner side wall of the pipe well 200, so that an effective whole body is formed between the pipe well 200 and the bearing beam 3, the outer hanger plate traction piece 2 is wound on the bearing beam 3, and the outer hanger plate 5 is respectively hung at two ends of the outer hanger plate traction piece 2, so that the outer hanger plate traction piece 2 provides an upward traction force for the outer hanger plate 5, the outer hanging plate 5 is connected with the outer side wall of the pipe well 200, so that an effective whole is formed between the pipe well 200 and the bearing beam 3, the pipe well 200 is always in a pressed state by the outer hanging plate 5 and the inner hanging plate 4 so as to jointly protect the inner side surface and the outer side surface of the pipe well 200, the safety of the masonry pipe well 200 in protection construction is realized, the traditional dismantling, moving and modifying of the existing pipe well 200 are avoided, the stress is clear, the safety degree is high, the whole construction operation time is shortened, heavy and complex moving and modifying operations are reduced, and the economic benefit is improved; meanwhile, the masonry pipe well 200 is protected by the inner hanging plate 4 and the outer hanging plate 5, and the masonry pipe well 200 is directly connected with the bearing beam 3 through the inner hanging plate traction piece 1 and the outer hanging plate traction piece 2 respectively, so that the masonry structure pipe well 200 is kept in a compressed state, cracks are prevented from being generated due to the fact that the masonry pipe well 200 is pulled, and safety redundancy is improved; in addition, because spandrel girder 3, interior hanger plate traction piece 1 and outer hanger plate traction piece 2 are detachable construction, can realize retrieving fast when dismantling, and then reuse reduces the whole cost of engineering.

Referring to fig. 1 to 5, the in-situ protection construction method of the masonry pipe well 200 of the present invention includes the following steps:

(1) providing an inner hanger plate traction piece 1, an outer hanger plate traction piece 2, a bearing beam 3, an inner hanger plate 4 used for being connected with the inner side wall of the pipe well 200 and an outer hanger plate 5 used for being connected with the outer side wall of the pipe well 200;

(2) constructing bearing side walls 9 on two sides of the pipe well 200 and the connecting pipeline 300, excavating soil in pits in the two bearing side walls 9 after the concrete strength reaches the age strength, detecting structures around the pipe well 200, the connecting pipeline 300 and the pipe well 200 in real time in the process from excavation to construction, excavating soil in the pits to the upper part structure of the pipe well 200, removing the upper part of the pipe well 200, avoiding interference phenomena such as collision between the pipe well 200 and a bearing beam 3 to be erected, and bearing the bearing beam 3 on the bearing side walls 9 in an erecting mode;

(3) forming an inner hanging plate 4 used for being connected with the inner side wall of the pipe well 200 through pouring, winding the inner hanging plate traction piece 1 on a bearing beam 3, respectively hanging the inner hanging plate 4 at two ends of the inner hanging plate traction piece 1, tensioning and fixing, aligning the tension center of the inner hanging plate traction piece 1 to the center of the pipe well 200, and excavating soil in a pit to the bottom of the pipe well 200;

(4) forming an outer hanging plate 5 used for being connected with the outer side wall of the pipe well 200 through pouring, winding the outer hanging plate traction piece 2 on a bearing beam 3, and respectively hanging the outer hanging plate 5 at two ends of the outer hanging plate traction piece 2 and performing tensioning and fixing to ensure that the tension center of the outer hanging plate traction piece 2 is aligned with the center of the pipe well 200;

(5) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the supporting beam column 8;

(6) backfilling soil to the outer hanging plate 5 and compacting the soil, removing the bearing beam 3, and removing the inner hanging plate traction piece 1 and the outer hanging plate traction piece 2;

(7) and backfilling the soil to the ground height.

Preferably, the step (3) further comprises the steps of:

step (31), providing a connecting pipeline traction piece 10, excavating soil in pits in the two bearing side walls 9 to the bottom of a connecting pipeline 300, winding the connecting pipeline traction piece 10 between the bearing beam 3 and the connecting pipeline 300 of the pipe well 200, tensioning and fixing, aligning the tension center of the connecting pipeline traction piece 10 to the center of the pipe well 200, and protecting the pressure-bearing or tension part of the connecting pipeline traction piece 10 by adopting a plastic pipe;

step (32), providing inner hanger plate reinforcing steel bars 6, penetrating the inner hanger plate reinforcing steel bars 6 into the pipe well 200 in an embedding mode, taking measures (temporary plugging or under the condition of water-carrying operation) under the condition of no water and little water in the construction process, carrying a gas mask by constructors or carrying out bottom cleaning treatment on the interior of the pipe well 200 by frogman, and forming an inner hanger plate 4 used for being connected with the inner side wall of the pipe well 200 through pouring so that the inner hanger plate reinforcing steel bars 6 are also penetrated into the inner hanger plate 4;

and (33) winding the inner hanging plate traction piece 1 on the bearing beam 3, respectively hanging the inner hanging plates 4 at two ends of the inner hanging plate traction piece 1, tensioning and fixing, aligning the tension center of the inner hanging plate traction piece 1 to the center of the pipe well 200, protecting the pressure-bearing or tensioned part of the inner hanging plate traction piece 1 by using a plastic pipe, and excavating the soil in the pit to the bottom of the pipe well 200.

Preferably, the step (4) further comprises the steps of:

step (41), providing outer hanger plate reinforcing steel bars 7, connecting the inner hanger plate reinforcing steel bars 6 with the outer hanger plate reinforcing steel bars 7, and forming an outer hanger plate 5 for connecting with the outer side wall of the pipe well 200 through pouring so that the outer hanger plate reinforcing steel bars 7 penetrate through the outer hanger plate 5;

and (42) winding the outer hanging plate traction piece 2 on the bearing beam 3, respectively hanging the outer hanging plates 5 at two ends of the outer hanging plate traction piece 2, tensioning and fixing, aligning the tension center of the outer hanging plate traction piece 2 to the center of the pipe well 200, and protecting the pressure-bearing or tension-bearing part of the outer hanging plate traction piece 2 by adopting a plastic pipe.

Preferably, the step (5) further comprises the steps of:

step (51), providing a supporting beam column 8, installing the supporting beam column 8 below the outer hanging plate 5, fixing the supporting beam column 8 to soil in a pit in an embedding manner, wherein the supporting beam column 8 comprises a supporting column 82 and a supporting beam 81, and the supporting beam 81 is fixedly connected with the supporting column 82 and tightly attached to the bottom of the outer hanging plate 5;

and (52) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the supporting beam column 8.

Preferably, step (1) is preceded by the steps of:

and (0) positioning the pipe well 200 and the connecting pipeline 300 by adopting a geophysical prospecting mode, determining the position and calculating, designing the scheme of the pipe well 200, calculating the weight center parts of the pipe well 200 and the connecting pipeline 300, and calculating the distance, specification, tension force and tension stage number of the inner hanger plate traction piece 1, the outer hanger plate traction piece 2, the inner hanger plate steel bar 6 and the outer hanger plate steel bar 7 to ensure that the specification requirements are met.

In summary, in this embodiment, the in-situ protection construction method for the masonry pipe well 200 includes the following steps:

(S1) positioning the pipe well 200 and the connecting pipeline 300 by adopting a geophysical prospecting mode, determining the position and calculating, designing the scheme of the pipe well 200, calculating the weight center parts of the pipe well 200 and the connecting pipeline 300, and calculating the distance, specification, tension force and tension stage number of the inner hanger plate traction piece 1, the outer hanger plate traction piece 2, the inner hanger plate steel bar 6 and the outer hanger plate steel bar 7 to ensure that the specification requirements are met;

(S2) providing an inner hanger plate traction member 1, an outer hanger plate traction member 2, a girder 3, an inner hanger plate 4 for connecting with an inner sidewall of the pipe well 200, and an outer hanger plate 5 for connecting with an outer sidewall of the pipe well 200;

(S3) constructing bearing side walls 9 at two sides of the pipe well 200 and the connecting pipeline 300, excavating soil in pits in the two bearing side walls 9 after the concrete strength reaches the age strength (see the state in figure 4), detecting structures around the pipe well 200, the connecting pipeline 300 and the pipe well 200 in real time in the process of excavating to construction, excavating the soil in the pits to the upper part structure of the pipe well 200, removing the upper part of the pipe well 200, avoiding interference phenomena such as collision between the pipe well 200 and a bearing beam 3 to be erected and bearing the bearing beam 3 on the bearing side walls 9 in an erecting mode;

(S4) providing a connecting pipeline traction piece 10, excavating soil in pits in the two bearing side walls 9 to the bottom of the connecting pipeline 300, winding the connecting pipeline traction piece 10 between the bearing beam 3 and the connecting pipeline 300 of the pipe well 200, tensioning and fixing, aligning the tension center of the connecting pipeline traction piece 10 to the center of the pipe well 200, and protecting the pressure-bearing or tension part of the connecting pipeline traction piece 10 by adopting a plastic pipe;

(S5) providing inner hanger plate reinforcing steel bars 6, penetrating the inner hanger plate reinforcing steel bars 6 into the pipe well 200 in an embedding mode, taking measures (temporary plugging or under the condition of water-carrying operation) under the condition of no water and little water in the construction process, carrying a gas mask by constructors or carrying frogman to carry out bottom cleaning treatment on the interior of the pipe well 200, and forming an inner hanger plate 4 used for being connected with the inner side wall of the pipe well 200 through pouring so that the inner hanger plate reinforcing steel bars 6 are also penetrated into the inner hanger plate 4;

(S6) winding the inner hanging plate traction piece 1 on the bearing beam 3, and respectively hanging the inner hanging plates 4 at two ends of the inner hanging plate traction piece 1 and tensioning and fixing (see the state shown in figure 5), so that the tension center of the inner hanging plate traction piece 1 is aligned with the center of the pipe well 200, protecting the pressure-bearing or tensioned part of the inner hanging plate traction piece 1 by adopting a plastic pipe, and excavating soil in the pit to the bottom of the pipe well 200;

(S7) providing outer hanger plate reinforcing bars 7, connecting the inner hanger plate reinforcing bars 6 with the outer hanger plate reinforcing bars 7, and forming the outer hanger plate 5 for connecting with the outer side wall of the pipe well 200 by pouring so that the outer hanger plate reinforcing bars 7 penetrate the outer hanger plate 5;

(S8) winding the outer hanger plate traction piece 2 on the bearing beam 3, and respectively hanging the outer hanger plates 5 at two ends of the outer hanger plate traction piece 2 and tensioning and fixing the outer hanger plates, so that the tension center of the outer hanger plate traction piece 2 is aligned with the center of the pipe well 200, and the pressure-bearing or tension part of the outer hanger plate traction piece 2 is protected by a plastic pipe;

(S9) providing a supporting beam column 8, installing the supporting beam column 8 below the outer hanging plate 5, and fixing the supporting beam column 8 to the soil in the pit in an embedding manner, wherein the supporting beam column 8 comprises a supporting beam 82 and a supporting beam 81, and the supporting beam 81 is fixedly connected with the supporting beam 82 and clings to the bottom of the outer hanging plate 5 (see fig. 1 in a state);

(S10) constructing an underground structure, and carrying out cast-in-place or support replacement treatment on the bearing beam 3;

(S11) backfilling the soil body to the outer hanging plate 5 and compacting the soil body, removing the bearing beam 3, and removing the traction piece 1, the inner hanging plate 4 and the outer hanging plate traction piece 2;

(S12) backfilling the soil to ground level.

Compared with the prior art, the masonry pipe well 200 in-situ protection construction method combines an inner hanger plate traction piece 1, an outer hanger plate traction piece 2, a bearing beam 3, an inner hanger plate 4 connected with the inner side wall of the pipe well 200, an outer hanger plate 5 connected with the outer side wall of the pipe well 200 and the like, wherein the bearing beam 3 is positioned above the inner hanger plate 4, the inner hanger plate traction piece 1 is wound on the bearing beam 3, the inner hanger plate 4 is respectively hung at two ends of the inner hanger plate traction piece 1, so that the inner hanger plate traction piece 1 provides an upward traction force for the inner hanger plate 4, the inner hanger plate 4 is connected with the inner side wall of the pipe well 200, so that an effective whole body is formed between the pipe well 200 and the bearing beam 3, the outer hanger plate traction piece 2 is wound on the bearing beam 3, and the outer hanger plate 5 is respectively hung at two ends of the outer hanger plate traction piece 2, so that the outer hanger plate traction piece 2 provides an upward traction force for the outer hanger plate 5, the outer hanging plate 5 is connected with the outer side wall of the pipe well 200, so that an effective whole is formed between the pipe well 200 and the bearing beam 3, the pipe well 200 is always in a pressed state by the outer hanging plate 5 and the inner hanging plate 4 so as to jointly protect the inner side surface and the outer side surface of the pipe well 200, the safety of the masonry pipe well 200 in protection construction is realized, the traditional dismantling, moving and modifying of the existing pipe well 200 are avoided, the stress is clear, the safety degree is high, the whole construction operation time is shortened, heavy and complex moving and modifying operations are reduced, and the economic benefit is improved; meanwhile, the masonry pipe well 200 is protected by the inner hanging plate 4 and the outer hanging plate 5, and the masonry pipe well 200 is directly connected with the bearing beam 3 through the inner hanging plate traction piece 1 and the outer hanging plate traction piece 2 respectively, so that the masonry structure pipe well 200 is kept in a compressed state, cracks are prevented from being generated due to the fact that the masonry pipe well 200 is pulled, and safety redundancy is improved; in addition, because spandrel girder 3, interior hanger plate traction piece 1 and outer hanger plate traction piece 2 are detachable construction, can realize retrieving fast when dismantling, and then reuse reduces the whole cost of engineering.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.