阅读说明：本技术 一种大直径塑料检查井及其安装施工方法 (Large-diameter plastic inspection well and installation and construction method thereof ) 是由 吴张永 谢志伟 蒋佳骏 卞光明 代龙 马自刚 刀正仙 张晓龙 蔡晓明 魏镜弢 王 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种大直径塑料检查井及其安装施工方法,检查井包括：井体、底撑、直立支撑、横撑和调节杆；井体由井座、井筒和井口组成；底撑设置在井体的井座上；直立支撑设置在底撑及井座底部上,其结构布置为沿井体周向布置,竖向为交错搭接；横撑由支撑杆、调节螺杆和支撑头组成；横撑水平设置在井体内,其两端与周向布置在井体内的直立支撑撑紧；支撑头通过过盈配合或螺栓与调节螺杆连接；在支撑杆上开设有多个通孔；调节杆为实心钢棒或空心钢管。本发明塑料检查井安装施工采用分段焊接,安装高度灵活；本发明支撑安装和拆卸方便,操作灵活,可重复利用,通用性强。(The invention discloses a large-diameter plastic inspection well and an installation and construction method thereof, wherein the inspection well comprises: the device comprises a well body, a bottom support, an upright support, a cross support and an adjusting rod; the well body consists of a well seat, a well shaft and a well mouth; the bottom support is arranged on a well seat of the well body; the vertical supports are arranged on the bottom supports and the bottom of the well seat, and are structurally arranged along the circumferential direction of the well body, and the vertical direction of the vertical supports is in staggered lap joint; the cross brace consists of a support rod, an adjusting screw rod and a support head; the cross brace is horizontally arranged in the well body, and two ends of the cross brace are tightly propped with the vertical support arranged in the well body in the circumferential direction; the supporting head is connected with the adjusting screw rod through interference fit or a bolt; a plurality of through holes are arranged on the supporting rod; the adjusting rod is a solid steel bar or a hollow steel pipe. The plastic inspection well is installed and constructed by adopting segmented welding, and the installation height is flexible; the support is convenient to mount and dismount, flexible to operate, reusable and high in universality.)

1. A large-diameter plastic manhole, comprising: the well body (1), a bottom support (2), a vertical support (3), a cross support (4) and an adjusting rod (5); wherein the content of the first and second substances,

the well body (1) consists of a well seat (11), a well shaft (12) and a well mouth (13); the shaft (12) is connected with the shaft seat (11) and the shaft mouth (13) is connected with the shaft (12) through welding;

the bottom support (2) is arranged on a well seat (11) of the well body (1), and the length of the bottom support corresponds to the inner diameter of the well body (1); the bottom support (2) is arranged in a cross shape or a meter shape;

the vertical supports (3) are arranged on the bottoms of the bottom supports (2) and the well seats (11), and are structurally arranged along the circumferential direction of a well body and vertically in staggered lap joint; the number of the upright supports (3) is even;

the cross brace (4) consists of a support rod (41), an adjusting screw rod (42) and a support head (43); the cross brace (4) is horizontally arranged in the well body (1), and two ends of the cross brace are tightly braced with the vertical support (3) which is circumferentially arranged in the well body; the supporting rod (41) is of a hollow structure, nuts are arranged at two ends of the supporting rod, and the adjusting screw rod (42) is arranged in the nuts at two ends of the supporting rod (41) through screw rods; the supporting head (43) is connected with the end head of the adjusting screw rod (42) through interference fit or a bolt; a plurality of through holes (44) are formed in the support rod (41);

the adjusting rod (5) is a solid steel rod or a hollow steel pipe, and the diameter of the adjusting rod (5) is smaller than that of the through hole (44) so as to be conveniently inserted into the through hole (44) to adjust the supporting length of the cross brace (4).

2. A large diameter plastic manhole as claimed in claim 1, wherein: the bottom support (2) is a structure formed by connecting wood materials of larch, ironwood or fir, and the sectional size of the wood materials is as follows: the length is 60-100 mm, and the width is 50-80 mm.

3. A large diameter plastic manhole as claimed in claim 1, wherein: the upright supports (3) are made of wood materials of larch, ironwood or fir; the length of the upright support (3) is 1 meter, 2 meters and 3 meters, and the section size is as follows: the length is 60-100 mm, and the width is 50-80 mm.

4. A large diameter plastic manhole as claimed in claim 1, wherein: the type of the nut fixed on the support rod (41) is M20-M36; in the through holes (44) formed in the supporting rod (41), the through holes (44) located on the same cross section are staggered at 45 degrees, the through holes (44) on the two cross sections are staggered at 30 degrees, and the diameter of each through hole is 10-25 mm.

5. A large diameter plastic manhole as claimed in claim 1, wherein: the length adjusting range of the cross brace (4) is 1000-3000 mm.

6. A large diameter plastic manhole as claimed in claim 1, wherein: the support head (43) is made of plastic, bakelite or rubber.

7. The installation and construction method of the large-diameter plastic inspection well according to any one of claims 1 to 6, characterized by comprising the following steps:

(1) placing a well seat (11) on a horizontal foundation of a well pit;

(2) a bottom support (2) is placed on the well seat (11), and the bottom support (2) is tightly attached to the bottom of the well seat (11);

(3) an even number of upright supports (3) are arranged in the well seat (11) along the circumferential direction of the well seat (11), and the upright supports (3) stand on the bottom of the bottom support (2) and the well seat (11); then putting the cross brace (4), adjusting the size of the cross brace (4) to reach the supporting size of the inner diameter of the well body, and enabling the cross brace (4) to support two symmetrical vertical supports (3) arranged in the well seat (11);

(4) burying and tamping the well seat (11) to position and fix the well seat; in the process of landfill and tamping, a proper amount of water is sprayed to improve the tamping effect;

(5) welding the shaft (12) to the well base (11);

(6) an even number of upright supports (3) are arranged in the shaft (12) along the circumferential direction of the shaft (12), and the upright supports (3) stand on the bottom supports (2) and are in staggered lap joint with the upright supports (3) of the well base (11); then putting the cross brace (4), adjusting the size of the cross brace (4) to reach the supporting size of the inner diameter of the well body, and enabling the cross brace (4) to support two symmetrical vertical supports (3) arranged in the well shaft (12);

(7) burying and tamping the shaft (12) to fix the shaft and consolidate the surrounding soil;

(8) continuously welding the shaft (12) according to the installation height of the shaft body;

(9) repeating the steps (6) and (7);

(10) welding a wellhead (13) to a wellbore (12);

(11) burying and tamping the wellhead (13) to fix the wellhead and consolidate the surrounding soil;

(12) after the construction is finished, fully settling the soil consolidated around the well body to ensure that the consolidated soil does not extrude the well body, and then removing the placed cross brace (4), bottom brace (2) and upright brace (3); the dismantling period is more than 30-100 days.

Technical Field

The invention belongs to the technical field of municipal pipeline engineering, and particularly relates to a large-diameter plastic inspection well and an installation and construction method thereof.

Background

Inspection wells, commonly known as inspection wells, are auxiliary structures which are arranged at junctions of drainage pipelines, turning positions, pipe diameter or gradient changing positions, water dropping positions or linear pipelines at certain intervals and are convenient for regular inspection and dredging of the pipelines. The plastic inspection well has the advantages of good sealing performance, corrosion resistance, aging resistance, convenience in installation, convenience in construction, simplicity in maintenance and the like. However, the wall of the plastic inspection well is thin, and particularly, the large-diameter plastic inspection well with the diameter larger than 1 meter and the height larger than 1 meter has the following problems in the construction process: 1) when the underground water level is high, the well body and the well bottom are subjected to water body extrusion force, so that the well body and the well bottom can deform and even be damaged; 2) when the periphery of the well body is backfilled, the periphery of the well body is deformed or damaged under the impact of backfilling soil. 3) After the plastic inspection well is constructed, the backfill soil around the well body can be unevenly settled, and the extrusion acting force of the settlement can cause the well body to generate large deformation and depression or even damage.

In the installation and construction of the existing plastic inspection well, besides direct backfill soil filling, brick walls are built around the plastic inspection well firstly, then the backfill soil is filled, the brick walls are reserved after construction, so that the plastic inspection well body is prevented from being deformed due to settlement and extrusion of the backfill soil, the brick walls are similar to the traditional brick inspection well, the construction period is long, the construction process is complex, the construction cost is high, and the recovered bricks cannot be removed after construction.

Disclosure of Invention

The invention aims to provide a mounting construction method of a large-diameter plastic inspection well, which solves the problem that a well body and a well bottom are greatly deformed or damaged in the mounting construction process of the large-diameter plastic inspection well and after construction.

In order to achieve the purpose, the invention provides the following technical scheme: a large diameter plastic inspection well comprising: the device comprises a well body, a bottom support, an upright support, a cross support and an adjusting rod; wherein the content of the first and second substances,

the well body consists of a well seat, a well shaft and a well mouth; the shaft and the well seat and the well mouth and the shaft are connected by welding;

the bottom support is arranged on a well seat of the well body, and the length of the bottom support corresponds to the inner diameter of the well body; the structure arrangement of the bottom support is arranged in a shape like a Chinese character jing or a Chinese character mi;

the vertical supports are arranged on the bottom supports and the bottom of the well seat, and are structurally arranged along the circumferential direction of the well body, and the vertical direction of the vertical supports is in staggered lap joint; the number of the upright supports is even;

the cross brace consists of a support rod, an adjusting screw rod and a support head; the cross brace is horizontally arranged in the well body, and two ends of the cross brace are tightly propped with the vertical support arranged in the well body in the circumferential direction; the support rod is of a hollow structure, nuts are arranged at two ends of the support rod, and the adjusting screw rods are arranged in the nuts at the two ends of the support rod through screw rods; the supporting head is connected with the end of the adjusting screw rod through interference fit or a bolt; a plurality of through holes are arranged on the supporting rod;

the adjusting rod is a solid steel rod or a hollow steel pipe, and the diameter of the adjusting rod is smaller than that of the through hole so as to be inserted into the through hole to adjust the supporting length of the cross brace.

Preferably, the bottom brace is a structure formed by connecting wood materials of larch, ironwood or fir, and the cross-sectional dimension of the wood materials is as follows: the length is 60-100 mm, and the width is 50-80 mm.

Preferably, the upright supports are wood material of larch, ironwood or fir; the length of the upright support is 1 meter, 2 meters and 3 meters, and the section size is as follows: the length is 60-100 mm, and the width is 50-80 mm.

Preferably, the type of the nut fixed on the support rod is M20-M36; in the through holes formed in the supporting rod, the through holes on the same cross section are staggered at 45 degrees, the through holes on the two cross sections are staggered at 30 degrees, and the diameter of each through hole is 10-25 mm.

Preferably, the length adjustment range of the cross brace is 1000-3000 mm.

Preferably, the support head is made of plastic, bakelite or rubber.

The invention also discloses an installation and construction method of the large-diameter plastic inspection well, which comprises the following steps:

(1) placing the well base on a well pit horizontal foundation;

(2) placing a bottom support on the well seat, and enabling the bottom support to be tightly attached to the bottom of the well seat;

(3) an even number of upright supports are arranged in the well seat along the circumferential direction of the well seat, and the upright supports stand on the bottom supports and the bottom of the well seat; then putting the cross brace into the well, and adjusting the size of the cross brace to reach the supporting size of the inner diameter of the well body, so that the cross brace supports two symmetrical vertical supports arranged in the well seat;

(4) burying and tamping the well base to position and fix the well base; in the process of landfill and tamping, a proper amount of water is sprayed to improve the tamping effect;

(5) welding the shaft on the well seat;

(6) an even number of upright supports are arranged in the shaft along the circumferential direction of the shaft, and the upright supports stand on the bottom supports and are in staggered lap joint with the upright supports of the well base; then putting the cross brace into the well body, and adjusting the size of the cross brace to reach the supporting size of the inner diameter of the well body, so that the cross brace supports two symmetrical vertical supports arranged in the shaft;

(7) burying and tamping the shaft to fix the shaft body and consolidate the surrounding soil;

(8) continuously welding the shaft according to the installation height of the well body;

(9) repeating the steps (6) and (7);

(10) welding a wellhead to the wellbore;

(11) burying and tamping the wellhead to fix the wellhead and consolidate the surrounding soil;

(12) after the construction is finished, fully settling the soil consolidated around the well body to ensure that the consolidated soil does not extrude the well body, and then removing the placed cross braces, bottom braces and vertical braces; the dismantling period is more than 30-100 days.

The invention has at least the following beneficial effects:

1) the vertical support and the bottom support are made of wood materials, so that the weight is light, the transportation and the use are convenient, the materials are convenient to obtain, and the vertical support and the bottom support can be recycled;

2) the cross brace is convenient to adjust, large in adjusting length and convenient to install and use;

3) the upright support and the bottom support adopt standard fixed lengths, so that the transportation is convenient; the full-height support can be realized by staggered lap joint of the upright supports according to the height and the size of the inspection well body; the diameter direction of the well bottom can be fixed according to the standard diameter and the structural arrangement form of the well body;

4) the bottom support can effectively prevent the bottom construction from deformation, swelling and damage caused by the buoyancy of underground water;

5) the plastic inspection well is installed and constructed by adopting segmented welding, the installation height is flexible, and the landfill and tamping are reliable;

6) the support is dismantled after installation and construction, so that the problem of large deformation and damage of a well body caused by the sedimentation effect of backfill soil is solved;

7) the invention has the advantages of convenient installation and disassembly, flexible operation, reusability and strong universality.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic diagram of the arrangement of the cross-brace in the well body.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings, and those skilled in the art will understand that the following embodiments are illustrative of the present invention only, and should not be construed as limiting the scope of the present invention. In the examples, specific techniques, connections, conditions, and processes are not specified, but are performed according to the techniques, connections, conditions, processes, and product specifications described in the literature in the art. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.

Referring to fig. 1 and 2, the present invention provides a large-diameter plastic manhole, including: the device comprises a well body 1, a bottom support 2, a vertical support 3, a cross support 4 and an adjusting rod 5; wherein the content of the first and second substances,

the well body 1 consists of a well seat 11, a well shaft 12 and a well mouth 13; the shaft 12 is connected with the shaft seat 11 and the shaft mouth 13 is connected with the shaft 12 through welding;

the bottom support 2 is arranged on a well seat 11 of the well body 1, and the length of the bottom support corresponds to the inner diameter of the well body 1; the bottom support 2 is arranged in a cross shape or a meter shape;

the vertical supports 3 are arranged on the bottom of the bottom support 2 and the bottom of the well seat 11, and are structurally arranged along the circumferential direction of the well body, and are vertically in staggered lap joint; the number of the upright supports 3 is even;

the cross brace 4 consists of a support rod 41, an adjusting screw rod 42 and a support head 43; the cross braces 4 are horizontally arranged in the well body 1, and two ends of the cross braces 4 are tightly propped with the vertical supports 3 which are circumferentially arranged in the well body (the cross braces 4 are used for supporting two vertical supports 3 which are symmetrically arranged in the well body, and each cross brace is correspondingly connected with the two vertical supports 3); the support rod 41 is of a hollow structure, nuts are arranged (welded) at two ends of the support rod 41, the adjusting screw rod 42 is arranged in the nuts at two ends of the support rod 41 through a screw rod, and the adjusting screw rod 42 is in threaded connection with the support rod 41 through the nuts; the supporting head 43 is connected with the end of the adjusting screw rod 42 through interference fit or bolts; a plurality of through holes 44 are arranged on the support rod 41;

the adjusting rod 5 is a solid steel rod or a hollow steel pipe, and the diameter of the adjusting rod 5 is smaller than that of the through hole 44 so as to be conveniently inserted into the through hole 44 to adjust the supporting length of the cross brace 4.

The process of adjusting the size of the wale 4 is as follows: nuts are arranged at two ends of the supporting rod 41, one end of the supporting rod is provided with a right-handed nut, the other end of the supporting rod is provided with a left-handed nut, and the two adjusting screw rods 42 are respectively right-handed and left-handed; when the adjusting screw 42 is not moved, the supporting rod 41 is rotated, if the supporting rod 41 rotates rightwards, the right-handed end nut is screwed in rightwards, the left-handed end nut at the other end is also screwed in leftwards, the adjusting size of the cross brace 4 is shortened, and the cross brace is disassembled; on the contrary, if the supporting rod 41 rotates leftwards, the right-handed nut is screwed out leftwards, the left-handed nut is also screwed out rightwards, the size of the cross brace 4 is adjusted to be lengthened, and the cross brace supports the upright brace tightly; by rotation of the support rod 41, fine adjustment of the support dimension can be achieved.

Specifically, the bottom brace 2 is a structure formed by connecting wood materials of larch, ironwood or fir, and the cross-sectional dimension of the wood materials is as follows: the length is 60-100 mm, and the width is 50-80 mm; the upright supports 3 are made of wood materials of larch, ironwood or fir; for ease of transport and use, the length of the upright supports 3 is provided with 1 meter, 2 meters and 3 meters, cross-sectional dimensions: the length is 60-100 mm, the width is 50-80 mm, and the vertical supports with different lengths are in staggered lap joint (so that the height of any size of a spliced well body can be met, for example, the height is 1200mm, two 1000mm staggered lap joints can be used, and the lap joints are overlapped by 800 mm); of course, it is also possible to increase the length of the upright supports 3 according to the height of the actual plastic manhole, and to adjust the required number thereof according to the diameter size of the plastic manhole. The support head 43 is made of plastic, bakelite or rubber.

In a further optimized scheme, the type of the nut fixed on the support rod 41 is M20-M36; in the through holes 44 formed in the support rod 41, the through holes 44 positioned on the same cross section are staggered at 45 degrees, the through holes 44 on the two cross sections are staggered at 30 degrees, and the diameter of each through hole is 10-25 mm; the length adjusting range of the cross brace 4 is 1000-3000 mm.

The invention discloses an installation and construction method of a large-diameter plastic inspection well, which comprises the following steps:

(1) placing the well base 11 on a well pit horizontal foundation;

(2) placing a bottom support 2 on the well seat 11, and enabling the bottom support 2 to be tightly attached to the bottom of the well seat 11;

(3) an even number of upright supports 3 are arranged in the well seat 11 along the circumferential direction of the well seat 11, and the upright supports 3 stand on the bottom supports 2 and the bottom of the well seat 11; then the cross brace 4 is put in, the size of the cross brace 4 is adjusted to reach the supporting size of the inner diameter of the well body, and the cross brace 4 supports the two symmetrical vertical supports 3 arranged in the well seat 11;

(4) burying and tamping the well base 11 to position and fix the well base; in the process of landfill and tamping, a proper amount of water is sprayed to improve the tamping effect;

(5) welding the wellbore 12 to the well base 11;

(6) an even number of vertical supports 3 are arranged in the shaft 12 along the circumferential direction of the shaft 12, the vertical supports 3 stand on the bottom supports 2 and are in staggered lap joint with the vertical supports 3 (directly or staggered and staggered) of the well base 11; then putting the cross brace 4, adjusting the size of the cross brace 4 to reach the supporting size of the inner diameter of the well body, and enabling the cross brace 4 to support two symmetrical vertical supports 3 arranged in the well shaft 12;

(7) burying and tamping the wellbore 12 to fix the well body and consolidate the surrounding soil;

(8) continuously welding the shaft 12 according to the installation height of the well body;

(9) repeating the steps (6) and (7);

(10) welding a wellhead 13 to the wellbore 12;

(11) burying and tamping the well mouth 13 to fix the well body and consolidate the surrounding soil;

(12) after the construction is finished, fully settling the soil consolidated around the well body to ensure that the consolidated soil does not extrude the well body, and then removing the placed cross brace 4, the bottom brace 2 and the upright brace 3; the dismantling period is more than 30-100 days.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.