CN209816916U - Flexible pipe gallery prefabricated part - Google Patents
Flexible pipe gallery prefabricated part Download PDFInfo
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- CN209816916U CN209816916U CN201920176160.XU CN201920176160U CN209816916U CN 209816916 U CN209816916 U CN 209816916U CN 201920176160 U CN201920176160 U CN 201920176160U CN 209816916 U CN209816916 U CN 209816916U
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- Prior art keywords
- pipe gallery
- section
- flexible
- deformation joint
- concrete pipe
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000009417 prefabrication Methods 0.000 claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 claims abstract description 6
- 239000006260 foam Substances 0.000 claims abstract description 6
- 229920000573 polyethylene Polymers 0.000 claims abstract description 6
- 239000000565 sealant Substances 0.000 claims abstract description 6
- -1 polyethylene Polymers 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 32
- 239000000463 material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
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Abstract
The utility model discloses a flexible pipe gallery prefabricated member, which comprises a left section concrete pipe gallery section and a right section concrete pipe gallery section, wherein a deformation joint is arranged between the left section concrete pipe gallery section and the right section concrete pipe gallery section, the deformation joint adopts a form of a middle-buried steel edge rubber water stop belt, and a polyethylene foam plate and sealant are used for filling joints; the left and right concrete pipe gallery sections are provided with reserved steel bar joints on the end faces, and a circle of water stop steel plate is embedded in the end face. And (3) conveying the prefabricated flexible prefabricated member to a construction site, butting reserved steel bar joints at two ends of the flexible prefabricated member with horizontal steel bars of the rigid cast-in-place section, encrypting other steel bars in a local area of the connecting section, erecting a template, and uniformly pouring to form the flexible prefabricated member and the rigid cast-in-place section into a whole. The utility model improves the forming quality of the deformation joint through fine prefabrication, and reduces the hidden danger of leakage; the rigid splicing is relatively flexible and mature; the construction is simple, and the construction period is effectively shortened; the material consumption is reduced.
Description
Technical Field
The utility model belongs to the technical field of city utility tunnel's waterproof technology and construction, in particular to flexible piping lane prefab is particularly useful for cast-in-place formula piping lane and the construction processing of prefabricated coincide plate-type piping lane in movement joint department.
Background
The urban underground comprehensive pipe gallery is an infrastructure building constructed underground in a city and is mainly used for accommodating municipal pipelines such as water supply and drainage pipelines, thermal pipelines, gas pipelines, power cables, communication cables and the like. City utility tunnel compares with the traditional direct-burried mode of pipeline, has a great deal of advantage, includes: all pipelines are managed in a unified manner, and the maintenance is convenient; the problems of a road zipper and an aerial spider web are solved, the influence on traffic is reduced, and the city appearance environment is beautified; optimizing the layout of underground pipelines, reasonably developing underground space resources and the like.
In consideration of construction cost, the domestic pipe gallery projects are mainly constructed in a cast-in-place mode or a prefabricated laminated plate mode at present, and the two construction processes are both mainly cast in place in a wet operation mode at deformation joints of the pipe gallery. To piping lane movement joint department, its construction quality is concerned with the settlement function and the waterproof effect of piping lane structure, is the important thing among the weight of on-the-spot quality control. However, because the deformation joint of the pipe gallery is relatively complex in structure and more in detail structure, the embedded steel-edged rubber water stop belt, the joint filling material, the caulking material and other water stop structures need to be arranged, the construction mode of field wet operation rough construction is difficult to be made in place, the normal deformation function and the waterproof function of the deformation joint are greatly influenced, and hidden dangers are left.
Therefore, how to improve the forming quality of the pipe gallery at the deformation joint, ensuring the normal deformation function and the waterproof function of the deformation joint, simultaneously not delaying the construction period and being a difficult problem which is urgently needed to be solved at the present stage.
SUMMERY OF THE UTILITY MODEL
To the difficult problem and the defect that exist among the prior art, the utility model provides a flexible pipe gallery prefab.
The flexible deformation joint section which is difficult to finish in-place during the rough construction of the on-site wet operation and easy to have leakage hidden danger is placed in a prefabricating factory for fine prefabrication, so that the forming quality of the deformation joint section is improved, and the normal deformation function and the waterproof function of the deformation joint are ensured; on the construction site, only the technically mature rigid splicing is needed, and the rigid splicing is uniformly connected with the rigid structure section of the cast-in-place type or the prefabricated laminated plate type, namely, the rigid splicing and flexible prefabrication mode is adopted.
The utility model discloses the technical scheme who adopts as follows: a flexible pipe gallery prefabricated member comprises a left concrete pipe gallery section and a right concrete pipe gallery section, wherein a deformation joint is formed between the left concrete pipe gallery section and the right concrete pipe gallery section, the deformation joint is in a form of a middle-buried steel edge rubber water stop belt, and a polyethylene foam plate and sealant are used for filling joints; the left and right concrete pipe gallery sections are provided with reserved steel bar joints on the end faces, and a circle of water stop steel plate is embedded in the end face.
Furthermore, half width of the water stop steel plate is buried in concrete during prefabrication, and the other half of the water stop steel plate is reserved.
Furthermore, the left rubber section and the right rubber section of the buried steel-edged rubber water stop are buried in concrete, and the ductility middle hole is clamped in the middle of the deformation joint.
Furthermore, the sealant is filled at the deformation joint after the flexible prefabricated member is poured and maintained.
Furthermore, the steel bar joint adopts a mechanical sleeve threaded connection or a mechanical sleeve extrusion connection mode.
Compare with current piping lane construction method, the beneficial effects of the utility model are that:
1) the forming quality of the deformation joint is improved.
The deformation joint construction quality of the urban underground comprehensive pipe gallery is related to the deformation function and the waterproof function of the pipe gallery structure, and is important for on-site quality control. The rubber waterstop needs to be fixed between the walls of two sections of pipe galleries, the ductility middle hole of the rubber waterstop needs to be just clamped in a deformation joint with the width of 30mm between the two sections of pipe galleries, the rubber waterstop does not touch the ground up and down, and the construction difficulty is very high. Therefore, the construction mode of the cast-in-situ rough construction is difficult to be made in place, the normal deformation function and the waterproof function of the deformation joint are greatly influenced, and hidden troubles are left.
Through placing the flexible section that contains the movement joint in the mill, carry out the prefabrication that becomes more meticulous, can effectively improve the shaping quality of movement joint department concrete, guarantee the accurate location of taking steel limit rubber waterstop, thoroughly solve the construction quality problem of movement joint department from the technology.
2) Rigid splices are relatively mature.
The flexible section containing the deformation joint is placed in a factory for prefabrication, so that the deformation joint section which is difficult to be prefabricated in place in the original cast-in-place rough construction on the construction site is changed into fine prefabrication in the factory, the deformation joint forming quality is ensured, and the hidden danger of leakage is avoided; and the flexible prefabricated section and the rigid structural section are only required to be subjected to cast-in-place rigid splicing which is mature in the prior art on the construction site. This is the so-called "rigid splice, flexible pre-fabrication" method.
3) Effectively shortening the construction period.
According to the national standard requirement, cast-in-place piping lane need set up one movement joint every 30m, need join in marriage 33 movement joints including every kilometer piping lane promptly, and is a lot of. Because the deformation joint structure is complicated relatively, the detailed construction is more, and the construction is loaded down with trivial details, seriously influences the whole construction progress of piping lane.
The flexible section of the deformation joint is placed in a factory for prefabrication, then the flexible section is transported to the site to be cast and connected with the rigid structure section in a unified mode, and the flexible section is produced in a parallel mode in the factory and the site, so that the construction time of the flexible section of the deformation joint on the site can be effectively shortened. Meanwhile, the prefabricated structure is prefabricated in a factory, so that the influence of rain and snow weather can be avoided, and the risk of construction period delay is reduced.
4) The amount of materials used is reduced.
The deformation joint is prefabricated in a factory, high-strength concrete which is not suitable for transportation can be adopted, the fixing bonding effect between the concrete and the steel edge and between the concrete and the rubber is improved, the width of the rubber waterstop with the steel edge can be reduced, and the using amount of rubber materials is reduced. Meanwhile, fine operation in a factory ensures that the rubber water stop is embedded more in place than embedded on site.
Drawings
FIG. 1 is a perspective schematic view of a single flexible pipe gallery pre-fabricated member with deformation joints according to the present invention;
FIG. 2 is a left side view schematic structure diagram of a single flexible pipe gallery prefabricated member containing deformation joints in the utility model;
FIG. 3 is a schematic structural diagram of a single flexible pipe gallery prefabricated member with deformation joints according to the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view of a portion of the deformation joint of FIG. 4;
FIG. 6 is a schematic view of the connection mode of the prefabricated member of the flexible pipe gallery in the construction site and the cast-in-place section;
description of reference numerals: 1-deformation joint; 2-reserving a steel bar joint; 3-water stop steel plate; 4-middle embedded steel edge rubber waterstop; 5-steel edge; 6-polyethylene foam board; 7-sealing glue; 8-a mechanical sleeve; 9-horizontal steel bars; 10-flexible pipe gallery prefabricated parts; 11-rigid cast-in-place section.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples, which are only described for better understanding of the invention, and it is to be emphasized that, to a person skilled in the art, without inventive work, several modifications and adjustments can be made to the invention, especially in terms of flexible preform dimensions and materials used, which are likewise protected by the claims.
As shown in fig. 1-5, a length of flexible pipe lane preform 10 including a deformation joint is prefabricated in a prefabrication plant according to design requirements. Wherein the structural form of the flexible pipe gallery preform 10 requires the following:
the cross section sizes of the height, the width and the like of the flexible prefabricated member are consistent with the size of the actual engineering rigid structure section, and the thicknesses of the top plate, the bottom plate and the two side walls of the flexible prefabricated member are also consistent with the actual engineering rigid structure section;
the flexible prefabricated member comprises a left concrete pipe gallery section and a right concrete pipe gallery section, wherein the lengths of the left concrete pipe gallery section and the right concrete pipe gallery section are 700mm, and a deformation joint 1 with the width of 30mm is arranged between the left concrete pipe gallery section and the right concrete pipe gallery section;
the left and right sections of concrete pipe gallery sections with the length of 700mm are manufactured according to the design requirements;
reserving reinforcing steel bar joints 2 with the thickness of 200mm at two ends of the flexible prefabricated member for rigidly splicing with a rigid structure section of a cast-in-place pipe gallery or a prefabricated laminated plate type pipe gallery to form a rigid unified whole;
pre-burying a circle of continuous water-stop steel plates 3 at the half thickness positions of a top plate, a bottom plate and two side walls at two ends of the flexible prefabricated member so as to prevent a leakage channel from being formed at an interface of new and old concrete when the flexible prefabricated member is rigidly spliced with a rigid structure section; the width of a circle of embedded continuous water stop steel plate 3 is 200mm, wherein one half of the width is embedded into concrete during prefabrication, and the other half of the width is reserved;
the main water stopping measure of the deformation joint 1 contained in the flexible prefabricated member is to arrange a middle-buried steel-edged rubber water stop belt 4, and meanwhile, a polyethylene foam plate 6 is used for filling joints and a sealant 7 is used for sealing to serve as a plurality of water stopping defense lines of the flexible prefabricated member;
the middle-buried steel-edged rubber water stop 4 is arranged at the position of half the thickness of the top plate, the bottom plate and the side wall, and the middle hole with ductility needs to be arranged in a deformation joint with the width of 30mm between the two sections of pipe galleries, so that the effective telescopic deformation function is achieved. Because prefabricate in the prefabrication mill, can adopt the concrete of high strength, nevertheless should not transport, improve the fixed bonding effect between concrete and steel limit, the rubber, the operation that becomes more meticulous in the mill simultaneously can guarantee that the pre-buried location of the formula steel limit rubber waterstop 4 of burying in is more accurate, fixed more firm, consequently, the formula steel limit rubber waterstop 4 width of burying in can more normal use amount reduce, both sides only need respectively bury 100mm in the concrete section about the rubber section. The steel edge 5 of the buried steel edge rubber waterstop 4 plays a role in bonding and meshing with concrete, and the steel edge of the waterstop is accurately fixed on the structural steel bar in a binding or spot welding mode before pouring in a factory;
the thickness of the joint filling material of the polyethylene foam plate 6 is 30mm, the thickness of the joint filling material is the same as the width of a deformed seam, the joint filling material and the deformed seam are preset in place together with the middle-buried steel-edge rubber water stop 4 before the flexible prefabricated member is poured in a factory, and one end of the joint filling material is close to the malleable middle hole of the middle-buried steel-edge rubber water stop 4. Pouring in the factory, after the maintenance is accomplished, filling the deformation joint department at the outside in the piping lane with sealed glue 7, accomplish all flows that flexible prefab was prefabricated in the factory promptly.
As shown in fig. 6, the prefabricated flexible prefabricated member is transported to a construction site, fixed at a designed position, the reserved steel bar joints 2 at two ends of the flexible pipe gallery prefabricated member 10 are butted with the horizontal steel bars 9 of the rigid cast-in-place section 11, other steel bars in the local area of the connecting section are encrypted, a template is erected, and uniform pouring is performed, so that the flexible prefabricated section and the rigid structure section form a whole;
because the earthquake-resistant requirement of the pipe gallery structure is slightly lower than that of a ground building, when the steel bar joints 2 reserved at the two ends of the flexible prefabricated member are butted with the horizontal steel bars 9 of the rigid cast-in-place section 11, the mechanical sleeve 8 is adopted for threaded connection or extrusion connection, so that the construction efficiency can be effectively improved;
if the rigid cast-in-place section 11 is a prefabricated laminated plate type pipe gallery, the reserved steel bar joints 2 at the two ends of the flexible prefabricated member are anchored into a steel bar cage of a splicing joint of the prefabricated laminated plate pipe gallery, then a template is erected, and uniform pouring is carried out, so that the flexible prefabricated section and the rigid structure section form a whole;
after the flexible prefabricated member is rigidly connected with the rigid structure section and is integrally formed, waterproof paint is uniformly coated on the outer side of the wall body, a waterproof coiled material is paved, and a waterproof protective layer is coated by mortar, so that the construction of the pipe gallery is completed.
Claims (5)
1. A flexible pipe gallery prefabricated member is characterized by comprising a left concrete pipe gallery section and a right concrete pipe gallery section, wherein a deformation joint is formed between the left concrete pipe gallery section and the right concrete pipe gallery section, the deformation joint is in a form of a middle-buried steel-edged rubber water stop belt, and a polyethylene foam plate and sealant are used for filling joints; the left and right concrete pipe gallery sections are provided with reserved steel bar joints on the end faces, and a circle of water stop steel plate is embedded in the end face.
2. The flexible pipe gallery preform of claim 1, wherein: half width of the water stop steel plate is buried in concrete during prefabrication, and the other half is reserved.
3. The flexible pipe gallery preform of claim 1, wherein: the left rubber section and the right rubber section of the middle-buried steel-edged rubber water stop are buried in concrete, and the ductility middle hole is clamped in the middle of the deformation joint.
4. The flexible pipe gallery preform of claim 1, wherein: and after the pouring and maintenance of the flexible prefabricated member are finished, the sealant is filled at the deformation joint.
5. The flexible pipe gallery preform of claim 1, wherein: the steel bar joint adopts a mechanical sleeve threaded connection or a mechanical sleeve extrusion connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920176160.XU CN209816916U (en) | 2019-01-31 | 2019-01-31 | Flexible pipe gallery prefabricated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920176160.XU CN209816916U (en) | 2019-01-31 | 2019-01-31 | Flexible pipe gallery prefabricated part |
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| Publication Number | Publication Date |
|---|---|
| CN209816916U true CN209816916U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920176160.XU Active CN209816916U (en) | 2019-01-31 | 2019-01-31 | Flexible pipe gallery prefabricated part |
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| Country | Link |
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| CN (1) | CN209816916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706966A (en) * | 2019-01-31 | 2019-05-03 | 浙江大学 | A kind of flexible prefabricated part and the method using the progress piping lane construction of flexible prefabricated part |
| CN114718123A (en) * | 2022-04-28 | 2022-07-08 | 中国一冶集团有限公司 | Prefabricated pipe jacking gallery and cast-in-place pipe gallery butt joint construction method |
-
2019
- 2019-01-31 CN CN201920176160.XU patent/CN209816916U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706966A (en) * | 2019-01-31 | 2019-05-03 | 浙江大学 | A kind of flexible prefabricated part and the method using the progress piping lane construction of flexible prefabricated part |
| CN114718123A (en) * | 2022-04-28 | 2022-07-08 | 中国一冶集团有限公司 | Prefabricated pipe jacking gallery and cast-in-place pipe gallery butt joint construction method |
| CN114718123B (en) * | 2022-04-28 | 2023-10-24 | 中国一冶集团有限公司 | Butt joint construction method for prefabricated top pipe gallery and cast-in-situ pipe gallery |
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