阅读说明：本技术 免支模超大管井封堵结构及方法 (Formwork-supporting-free super-large pipe well plugging structure and method ) 是由 王刚 刘天龙 陈新喜 刘天颖 李赟 张雨溪 王强 陈华 余少乐 谢燕辉 李承龙 于 2021-08-27 设计创作，主要内容包括：本发明的免支模超大管井封堵结构及方法,管井设于结构楼梯中,该管井内设有管道,该封堵结构包括：围设并固定于管道外周的套管,该管道与该套管之间封堵有防火材料,跨设于该管井且两端固定于该结构楼板的多根支撑梁,多根该支撑梁与该套管错位设置,相邻该支撑梁之间固定有底板,该底板上浇筑有混凝土,该混凝土边缘与该结构楼板相接。本发明解决了现有技术中封堵超大管井预留洞口工艺复杂且工期长的技术问题。本发明可以进行上下洞口同步施工,且不用搭设支模架,在节约施工成本的同时节约了施工工期,为后续精装修的穿插施工创造了有利条件。(The invention relates to a formwork-free oversized pipe well plugging structure and a method, wherein a pipe well is arranged in a structural stair, a pipeline is arranged in the pipe well, and the plugging structure comprises: enclose and establish and be fixed in the sleeve pipe of pipeline periphery, the shutoff has fire prevention material between this pipeline and this sleeve pipe, strides and locates this tube-well and many supporting beams that both ends are fixed in this structural floor slab, and many these supporting beams set up with this sleeve pipe dislocation, are fixed with the bottom plate between the adjacent this supporting beam, have pour the concrete on this bottom plate, and this concrete edge meets with this structural floor slab. The invention solves the technical problems of complex process and long construction period for plugging the reserved hole of the oversized pipe well in the prior art. The invention can carry out the synchronous construction of the upper and lower holes without erecting a formwork support, saves the construction cost and the construction period, and creates favorable conditions for the alternate construction of subsequent finish decoration.)

1. The utility model provides an exempt from formwork super large tube-well block structure, during structure stair were located to the tube-well, be equipped with the pipeline in the tube-well, its characterized in that includes: enclose and establish and be fixed in the sleeve pipe of pipeline periphery, the pipeline with the shutoff has fire prevention material between the sleeve pipe, strides and locates tube-well and both ends are fixed in many supporting beam of structural floor slab, many supporting beam with the sleeve pipe dislocation set is adjacent be fixed with the bottom plate between the supporting beam, pour the concrete on the bottom plate, the concrete edge with structural floor slab meets.

2. The formwork-free oversized pipe well plugging structure as claimed in claim 1, wherein the supporting beam is an I-beam, flange plates of the I-beam are horizontally arranged, and the bottom plate is fixed on lower flange plates of the I-beam.

3. The non-formwork oversized pipe well plugging structure according to claim 1, wherein the number of the pipelines is multiple, the periphery of each pipeline is surrounded by the sleeves, at least two supporting beams are arranged between the adjacent sleeves, at least two supporting beams are arranged between the sleeves and the structural floor slab, and the supporting beams are arranged in the same direction and are parallel to each other.

4. The formwork-free oversized pipe well plugging structure as recited in claim 1, wherein said bottom plate between said support beams adjacent to said casing is in sealing connection with said casing.

5. The formwork-free oversized pipe well plugging structure as claimed in claim 1, wherein fixing plates are fixed at two ends of the supporting beam, and the fixing plates are fixed in a structural floor slab through anchor bolts.

6. The formwork-free oversized pipe well plugging structure as recited in claim 2, wherein the width of said fixing plate is greater than the width of the cross section of said i-beam, and the length of said fixing plate is greater than the length of the cross section of said i-beam.

7. The formwork-free oversized pipe well plugging structure as claimed in claim 1, wherein reinforcing steel bars are arranged in the concrete, and the reinforcing steel bars are fixed on the bottom plate through studs.

8. A formwork-supporting-free plugging method for an oversized pipe well is characterized by comprising the following steps:

a fixed sleeve is arranged around the periphery of the pipeline in the pipe well, and the pipe well is arranged in the structural floor slab;

sealing a fireproof material between the sleeve and the pipeline;

a plurality of supporting beams are arranged in the area to be plugged in a spanning mode, the supporting beams and the sleeves are arranged in a staggered mode, and two ends of the supporting beams are fixed on the structural floor slab;

fixing a bottom plate between the adjacent support beams;

and pouring concrete on the bottom plate, and connecting the edge of the concrete with the structural floor slab.

9. The formwork-free plugging method for the oversized pipe well as recited in claim 8, wherein the supporting beam is an i-beam, the flange plate of the i-beam is horizontally arranged, and the bottom plate is fixed on the lower flange plate of the i-beam;

and when the bottom plate is fixed between the adjacent supporting beams, the bottom plate is fixed on the lower flange plate of the I-shaped beam.

10. The formwork-free ultra-large pipe well plugging method according to claim 8,

fixing plates are fixed at two ends of the supporting beam and fixed in the structural floor slab through anchor bolts;

when fixing the two ends of the supporting beam on the structural floor slab, the fixing plate is fixed on the structural floor slab through anchor bolts, and the end part of the supporting beam is fixed on the fixing plate.

Technical Field

The invention relates to the field of building construction, in particular to a formwork-supporting-free oversized pipe well plugging structure and a formwork-supporting-free oversized pipe well plugging method.

Background

At present, in the design process of some large public building pipe wells, a large number of pipelines are laid in part of super large pipe wells, a hole with a super large area needs to be reserved in the structural construction stage, after the pipeline construction is finished, an external sleeve and fireproof materials need to be plugged by a civil engineering construction unit, the hole of a small pipe well can be plugged by adopting a formwork lifting construction process, however, for the hole reserved in the super large pipe well, the formwork lifting process cannot be adopted due to overlarge span and length, a full formwork support needs to be erected at the lower part of the hole to plug according to a floor pouring construction process, time and labor are wasted, the hole plugging needs to be carried out layer by layer from bottom to top, the construction cost is increased, the construction period is synchronously prolonged, and the construction period pressure is huge for some projects with quite short construction period.

Disclosure of Invention

The invention provides a formwork-free plugging structure and method for an oversized pipe well, and solves the technical problems that the process for plugging a reserved hole of the oversized pipe well is complex and the construction period is long in the prior art.

In a first aspect, the invention provides a formwork-free oversized pipe well plugging structure, a pipe well is arranged in a structural stair, and a pipeline is arranged in the pipe well, and the structure is characterized by comprising:

enclose and establish and be fixed in the sleeve pipe of pipeline periphery, the shutoff has fire prevention material between this pipeline and this sleeve pipe, strides and locates this tube-well and many supporting beams that both ends are fixed in this structural floor slab, and many these supporting beams set up with this sleeve pipe dislocation, are fixed with the bottom plate between the adjacent this supporting beam, have pour the concrete on this bottom plate, and this concrete edge meets with this structural floor slab.

The formwork-supporting-free oversized pipe well plugging structure is further improved in that the supporting beam is an I-shaped beam, the flange plate of the I-shaped beam is horizontally arranged, and the bottom plate is fixed on the lower flange plate of the I-shaped beam.

The invention further improves the mould-supporting-free oversized pipe well plugging structure, the number of the pipelines is multiple, the periphery of each pipeline is surrounded by the sleeve, at least two supporting beams are arranged between the adjacent sleeves, at least two supporting beams are arranged between the sleeve and the structural floor slab, and the supporting beams are arranged in the same direction and are parallel to each other.

The invention further improves the formwork-free oversized pipe well plugging structure in that the bottom plate between the supporting beams adjacent to the casing pipe is in sealing connection with the casing pipe.

The invention further improves the formwork-free oversized pipe well plugging structure, wherein fixing plates are fixed at two ends of the supporting beam and are fixed in a structural floor slab through anchor bolts.

The formwork-supporting-free oversized pipe well plugging structure is further improved in that the width of the fixing plate is larger than the width of the cross section of the I-shaped steel, and the length of the fixing plate is larger than the length of the cross section of the I-shaped steel.

The formwork-free oversized pipe well plugging structure is further improved in that reinforcing steel bars are arranged in the concrete and fixed on the bottom plate through the studs.

In a second aspect, the invention also provides a formwork-supporting-free plugging construction method for the oversized pipe well, which comprises the following steps:

a fixed sleeve is arranged around the periphery of the pipeline in the pipe well, and the pipe well is arranged in the structural floor slab;

sealing a fireproof material between the sleeve and the pipeline;

a plurality of supporting beams are arranged in the area to be plugged in a spanning mode, the supporting beams and the sleeve are arranged in a staggered mode, and two ends of the supporting beams are fixed on the structural floor slab;

fixing a bottom plate between the adjacent support beams;

concrete is poured on the bottom plate, and the concrete edge is connected with the structural floor slab.

The method for plugging the formwork-free oversized pipe well is further improved in that,

the supporting beam is an I-beam, the flange plate of the I-beam is horizontally arranged, and the bottom plate is fixed on the lower flange plate of the I-beam;

when the bottom plate is fixed between the adjacent support beams, the bottom plate is fixed on the lower flange plate of the I-shaped beam.

The method for plugging the formwork-free oversized pipe well is further improved in that fixing plates are fixed at two ends of the supporting beam and are fixed in a structural floor slab through anchor bolts;

when the two ends of the supporting beams are fixed on the structural floor slab, the fixing plate is fixed on the structural floor slab through anchor bolts, and the end parts of the supporting beams are fixed on the fixing plate.

Compared with the prior art, the invention has positive and obvious effect. The invention provides support through the combination of the support beam and the bottom plate and then pours concrete, thereby solving the technical problems of complex process and long construction period of plugging the reserved hole of the oversized pipe well in the prior art. The invention can carry out the synchronous construction of the upper and lower holes without erecting a formwork support, saves the construction cost and the construction period, and creates favorable conditions for the alternate construction of subsequent finish decoration.

Drawings

Fig. 1 is a plan view of the casing arrangement of the formwork-free oversized tubular well plugging structure of the invention.

Fig. 2 is a plan view of the arrangement of support beams of the formwork-free oversized pipe well plugging structure.

FIG. 3 is a side view of the node A in FIG. 2

Fig. 4 is a paving side view of the formwork-free oversized pipe well plugging structure.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in fig. 1, fig. 2 and fig. 3, in the formwork-free oversized pipe well plugging structure of the present invention, a pipe well 1 is disposed in a structural stair, and a pipeline 2 is disposed in the pipe well 1, including: enclose and establish and be fixed in the sleeve pipe 4 of 2 peripheries of pipeline, the shutoff has fire-proof material 3 between this pipeline 2 and this sleeve pipe 4, strides and locates this tube well 1 and many supporting beam 5 that both ends are fixed in this structural floor slab 10, many these supporting beam 5 and this sleeve pipe 4 dislocation set, are fixed with bottom plate 7 between the adjacent this supporting beam 5, have pour concrete 8 on this bottom plate 7, this concrete 8 edge meets with this structural floor slab 10.

In this embodiment, this a supporting beam is I-shaped girder steel, and this bottom plate is the steel sheet, and is fixed by girder steel and steel sheet and forms holistic building carrier plate intensity height, and bearing capacity is strong. The supporting beam 5 is used as a stress point of the whole system, a full formwork support is avoided being built, and the purpose of quickly plugging the hole of the oversized pipe shaft 1 is achieved. The sleeves 4 are typically 100mm taller than the structural slab to avoid flow of the concrete 8 into the fire-protecting material 3 and the duct 2 during casting. The concrete 8 adopts micro-expansion concrete 8 with a higher grade to ensure the effective combination of the new and the old floor slabs.

Preferably, the support beam 5 is an i-beam, the flange plate of the i-beam is horizontally arranged, and the bottom plate 7 is fixed on the lower flange plate of the i-beam.

The I-beam utilizes the characteristics of the shape of the I-beam, so that the bottom plate 7 can be directly lapped on the lower flange plate and then fixed, the bottom plate 7 is supported by the lower flange plate, and the stability is higher.

Preferably, the number of the pipelines 2 is multiple, the sleeve 4 is surrounded on the periphery of each pipeline 2, at least two supporting beams 5 are arranged between the adjacent sleeve 4, at least two supporting beams 5 are arranged between the sleeve 4 and the structural floor slab 10, and the supporting beams 5 are arranged in the same direction and are parallel to each other.

In order to improve the stability of the whole structure, the number of the supporting beams 5 is adjusted according to the field condition, and at least two supporting beams 5 are arranged between the adjacent sleeves 4 and between the sleeves 4 and the structural floor slab 10, so that the bottom plate 7 and the later-stage poured concrete 8 are effectively supported.

Preferably, the bottom plate 7 between the support beams 5 adjacent to the sleeves 4 is sealingly connected to the sleeves 4.

During construction, the concrete can be sealed by sealant, sealing rubber strips or waterproof materials, and the muddy water is prevented from leaking from the gap between the bottom plate 7 and the sleeve 4 in the pouring process of the concrete 8.

Preferably, as shown in fig. 3, fixing plates 6 are fixed to both ends of the support beam 5, and the fixing plates 6 are fixed to the structural floor 10 by anchors 9.

The support beam 5 and the fixing plate 6 are fixed by welding, and the welding is controlled according to a primary welding line to ensure the welding quality. Anchor bolt 9 is chemical anchor bolt 9, need avoid floor reinforcing bar 12 when the steel sheet adopts chemical bolt to fix, avoids causing the damage to existing floor structure. The chemical anchor bolt 9 has strong anchoring force, no expansion stress, quick installation and solidification, and saves the construction time.

Preferably, the width of the fixing plate 6 is greater than the width of the cross section of the i-beam, and the length of the fixing plate 6 is greater than the length of the cross section of the i-beam.

In this embodiment, the fixing plate 6 is a steel plate. The area of the fixing plate 6 is large, the contact area between the fixing plate and the structural floor slab 10 is increased, the fixing is firmer, and the overall stability is improved.

Preferably, the concrete 8 is provided with a steel bar 12, and the steel bar 12 is fixed on the bottom plate through a bolt 11.

This peg 11 adopts welded mode fixed with the bottom plate, and reinforcing bar 12 can guarantee concrete 8's whole atress effect with the fixed back of peg 11.

As shown in fig. 1, fig. 2 and fig. 3, the invention also provides a plugging construction method for the formwork-free oversized pipe well 1, which comprises the following steps:

a fixed sleeve 4 is arranged around the periphery of the pipeline 2 in the pipe well 1, and the pipe well 1 is arranged in a structural floor slab 10;

sealing the fireproof material 3 between the sleeve 4 and the pipeline 2;

a plurality of supporting beams 5 are arranged in the area to be plugged in a spanning mode, the supporting beams 5 and the sleeve 4 are arranged in a staggered mode, and two ends of the supporting beams 5 are fixed on a structural floor 10;

fixing a bottom plate 7 between adjacent support beams 5;

concrete 8 is poured on the bottom plate 7 and the edges of the concrete 8 are brought into contact with the structural floor 10.

When the supporting beams 5 are arranged, the supporting beams 5 are reasonably arranged according to the size of the residual space of the pipeline 2, and the fixing plates 6 are fixed at the corresponding positions of the structural floor slab 10 to ensure that the bearing meets the requirements. The method has the advantages of simple structure, quick construction, no need of layer-by-layer construction from bottom to top, simultaneous construction, shortened construction period and construction cost saving.

Preferably, the supporting beam 5 is an i-beam, the flange plate of the i-beam is horizontally arranged, and the bottom plate 7 is fixed on the lower flange plate of the i-beam;

when the bottom plate 7 is fixed between the adjacent support beams 5, the bottom plate 7 is fixed on the lower flange plate of the I-beam.

When the bottom plate 7 is fixed, a welding mode is generally adopted, and the lower flange plate of the I-shaped beam supports, so that the welding requirement is lower, the overall stability is not influenced, and the construction efficiency is improved.

Preferably, when both ends of the plurality of support beams 5 are fixed to the structural floor 10,

fixing plates 6 are fixed at two ends of the supporting beam 5, and the fixing plates 6 are fixed in a structural floor slab 10 through anchor bolts 9;

when both ends of the plurality of support beams 5 are fixed to the structural floor 10, the fixing plate 6 is fixed to the structural floor 10 by the anchor bolts 9, and the ends of the support beams 5 are fixed to the fixing plate 6.

The supporting beam 5 is fixed on the structural floor slab 10 through the fixing plate 6, so that the stability is higher, the process is simple, and the construction is convenient.

The invention provides support through the combination of the support beam and the bottom plate and then pours concrete, thereby solving the technical problems of complex process and long construction period of plugging the reserved hole of the oversized pipe well in the prior art. The invention can carry out the synchronous construction of the upper and lower holes without erecting a formwork support, saves the construction cost and the construction period, and creates favorable conditions for the alternate construction of subsequent finish decoration.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.