CN220318548U - Soil retaining structure for water-facing pit support in narrow region - Google Patents
Soil retaining structure for water-facing pit support in narrow region Download PDFInfo
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- CN220318548U CN220318548U CN202321812874.8U CN202321812874U CN220318548U CN 220318548 U CN220318548 U CN 220318548U CN 202321812874 U CN202321812874 U CN 202321812874U CN 220318548 U CN220318548 U CN 220318548U
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- water
- jet grouting
- pipeline
- grouting pile
- pit
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- 239000002689 soil Substances 0.000 title claims abstract description 23
- 230000008093 supporting effect Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000009435 building construction Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 32
- 238000005452 bending Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- Revetment (AREA)
Abstract
The utility model discloses a water-facing pit supporting soil retaining structure in a narrow area, which is applied to the technical field of building construction.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to a soil retaining structure for supporting a water-based pit in a narrow area.
Background
At present, most cities are subjected to rain and sewage diversion and repair projects, most projects are located in construction narrow areas such as villages in the cities, the periphery of the projects is close to residential buildings/overhead wires or communication wires, and the like, so that foundation pit environments are complex, partial pipelines need to be excavated and laid in a river, and a newly built retaining structure along the river is needed after the pipeline construction.
Currently, the publication number is: the utility model of CN215562647U discloses a supporting structure of a water-facing pit, and belongs to the technical field of building construction. The support structure is positioned between a concrete main structure and a bank, one side of the concrete main structure, which is close to the bank, sequentially comprises a foundation pit drainage ditch, a side slope spray anchor layer and a dewatering well, wherein a side slope anchor rod which is obliquely downwards arranged along the direction close to one side of the dewatering well and a seepage pipe which is obliquely downwards arranged along the direction far from one side of the dewatering well are arranged on the side slope spray anchor layer, and the bottom of the dewatering well is one to two meters lower than the bottom of the foundation pit drainage ditch. Adopt foundation ditch escape canal and dewatering well to combine the design, utilize the inside water of interception foundation ditch of foundation ditch escape canal to be close to concrete major structure, carry out retaining and guarantee that the inside water level of foundation ditch is in the foundation ditch below all the time through the dewatering well, through double-deck "blocking" "the section", guarantee that the foundation ditch construction is not influenced by groundwater, the groundwater of collection can carry out cyclic utilization, has very strong economic nature, feature of environmental protection, and the municipal construction of later stage is convenient for also operate.
The technical route of the supporting soil-blocking of the water-facing pit commonly used at present is as follows: setting up construction cofferdam, pipeline and barricade construction adopt conventional supporting construction such as steel sheet pile, after the barricade construction is accomplished, lay the pipeline, then backfill, demolish supporting construction, but have following problem:
the foundation (1) has narrow construction sites, and large construction equipment such as steel sheet pile drivers and the like are difficult to transport and operate;
factors such as overhead lines exist around the engineering of the river channel (2), the steel sheet piles are limited in height requirement for insertion and extraction, and the steel sheet piles with larger lengths cannot be implemented;
the construction of the steel sheet piles of the houses (3) affects the safety of surrounding buildings (structures);
the newly built soil retaining structure of the water-facing pit (4) generally adopts gravity type, cantilever type or buttress type retaining walls, the excavation surface of the retaining wall foundation pit is larger, and the narrow place can not be implemented;
soil bags (5) are easy to sink near the water-based pit, so that the phenomenon of bending after the pipeline position is deviated and part of the pipeline position is sunk is caused
Therefore, we propose a soil-blocking structure for supporting a water-adjacent pit in a narrow region.
Disclosure of Invention
The utility model aims to provide a water-based pit supporting and soil blocking structure in a narrow area, which has the advantages of solving the problem of difficult foundation pit supporting in a narrow construction area, reducing the influence of construction on the safety of the existing building (structure) and river channels, temporarily supporting pipelines, and avoiding deflection and tortuosity.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a narrow regional water-facing pit support soil retaining structure, includes ground, river course, house and sets up the water-facing pit in the ground inside, the inside of water-facing pit is provided with the pipeline, single tube jet grouting pile is all installed to the both sides of the inside of water-facing pit, single tube jet grouting pile internally mounted has the steel pipe, be provided with the soil bag between water-facing pit and the river course, the inside of water-facing pit is provided with shaped steel waist rail and the continuous beam of being connected with single tube jet grouting pile, the roof beam has been pour at the top of single tube jet grouting pile, the inside of water-facing pit is filled with the permeable material layer that uses with the pipeline cooperation, the brick wall that uses with the cooperation of house is installed to one side at water-facing pit top; the inside of face water foundation ditch is installed respectively and is used with supporting baseplate and apron of pipeline cooperation, the spring is all installed to the both sides of apron bottom, the splint with the pipeline joint are installed to the one end that the spring kept away from the apron.
According to the technical scheme, the single-pipe rotary jet grouting piles are arranged on the two sides of the water-facing foundation pit in the first stage, and supported through the profile steel waist beams, so that the foundation pit is supported, meanwhile, after the pipeline is embedded, the profile steel waist beams are removed, the permeable material layer is backfilled in the second stage, the capping beams and the connecting beams are poured, so that the portal double-row pile structure is formed, the permeable material layer and the permanent gravity type retaining structure are arranged, the effect of supporting the water-facing foundation pit in a narrow area is achieved, meanwhile, the influence of construction on the safety of existing building (structures) and river channels is reduced, and the requirements of construction sites can be met due to the fact that the single-pipe rotary jet grouting piles are small in construction machinery; the bottom of the pipeline is supported through the supporting bottom plate, and meanwhile, the clamping plates are driven to clamp two sides of the pipeline through the elasticity of the springs, so that the position of the pipeline is fixed, the functions of deflection and bending when the pipeline is buried in water are avoided, and the practicability is improved.
The utility model is further provided with: the single-pipe jet grouting pile arranged on one side of the water-facing pit close to the river channel is double-layered.
By adopting the technical scheme, the double-layer single-pipe jet grouting pile is arranged to meet the river water flushing requirement, and hanging plate decoration can be carried out on the river surface according to the requirement in the later period.
The utility model is further provided with: the surface of the steel pipe is coated with an anti-corrosion coating.
By adopting the technical scheme, the service life of the steel pipe can be prolonged.
The utility model is further provided with: the top of the steel pipe protrudes out of the interior of the single-pipe jet grouting pile and is 0.5 meter higher than the single-pipe jet grouting pile.
By adopting the technical scheme, the later casting of the capping beam and the connecting beam is facilitated, and the height limiting requirement is met.
The utility model is further provided with: the adjacent distance between the profile steel waist beams is 3 meters.
By adopting the technical scheme, the supporting effect on the water-facing pit is improved.
The utility model is further provided with: the adjacent distance between the connecting beams is 2 meters.
By adopting the technical scheme, the soil and stone can be conveniently backfilled into the water-facing pit in the later period.
The utility model is further provided with: and pavement filling layers are poured at the tops of the capping beams and the connecting beams.
By adopting the technical scheme, the foundation pit is backfilled to meet the road surface requirement.
In summary, the utility model has the following beneficial effects:
1. the single-pipe jet grouting piles are arranged on the two sides of the waterside foundation pit in the first stage, and supported through the profile steel waist beams, so that the foundation pit is supported, meanwhile, the profile steel waist beams are removed after the pipeline is buried, then the permeable material layer is backfilled in the second stage, the top beams and the connecting beams are poured, so that the permeable material layer is converted into a portal double-row pile structure, and the portal double-row pile structure and the permeable material layer are combined into a permanent gravity type retaining structure, so that the effect of supporting the waterside foundation pit in a narrow area is realized, meanwhile, the influence of construction on the safety of existing building (structures) and river channels is reduced, and the requirement of construction sites can be met due to smaller site required by single-pipe jet grouting pile construction machinery;
2. the bottom of the pipeline is supported through the supporting bottom plate, and meanwhile, the clamping plates are driven to clamp two sides of the pipeline through the elasticity of the springs, so that the position of the pipeline is fixed, the functions of deflection and bending when the pipeline is buried in water are avoided, and the practicability is improved.
Drawings
FIG. 1 is a schematic view of a construction of the present utility model in a first stage;
FIG. 2 is a cross-sectional view of a construction of the present utility model at a first stage;
FIG. 3 is a top plan view of the construction of the present utility model in a first stage;
FIG. 4 is a cross-sectional view of a construction second stage of the present utility model;
fig. 5 is a top view of a construction second stage structure of the present utility model.
Reference numerals: 1. a foundation; 2. river course; 3. a house; 4. water-facing pit; 5. a soil bag; 6. single tube jet grouting pile; 7. a steel pipe; 8. a section steel waist beam; 9. brick walls; 10. a capping beam; 11. a connecting beam; 12. a water permeable material layer; 13. a pavement filling layer; 14. a pipe; 15. a support base plate; 16. a cover plate; 17. a spring; 18. and (3) clamping plates.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, a narrow regional temporary water pit support soil blocking structure, including foundation 1, river course 2, house 3 and set up the temporary water pit 4 in foundation 1 inside, the inside of temporary water pit 4 is provided with pipeline 14, single tube jet grouting pile 6 is all installed to the both sides of the inside of temporary water pit 4, the internally mounted of single tube jet grouting pile 6 has steel pipe 7, be provided with soil bag 5 between temporary water pit 4 and the river course 2, the inside of temporary water pit 4 is provided with shaped steel waist rail 8 and continuous beam 11 that are connected with single tube jet grouting pile 6, the roof beam 10 has been pour at the top of temporary water pit 4, the inside of temporary water pit 4 is filled with the permeable material layer 12 that is used with pipeline 14 cooperation, the brick wall 9 that is used with the cooperation of house 3 is installed to one side at the top of temporary water pit 4, through all installing single tube jet grouting pile 6 in the both sides of temporary water pit 4, and support through shaped steel waist rail 8, make it satisfy the support to the foundation pit, after the pipeline is set up to accomplish, then demolish the shaped steel waist rail 8, and then the permeable material layer 12 has been realized simultaneously with the continuous beam 10, the permeable material layer is realized to the small-size and the permeable material layer is realized to the permeable material layer of the construction site than the small-size than the required by the continuous beam, the construction site is realized, the construction is more than the construction is realized to the small than the construction site is than the a small than the site is than the a small than is convenient to the type.
Referring to fig. 3, the single-pipe jet grouting pile 6 installed on one side of the water-facing pit 4 close to the river channel 2 is double-layered, and the double-layered single-pipe jet grouting pile 6 is arranged to meet the river water flushing requirement, and hanging plate decoration can be carried out on the river surface at the later stage according to the requirement.
Referring to fig. 1, the surface of the steel pipe 7 is coated with an anti-corrosion coating, which can improve the service life of the steel pipe 7.
Referring to fig. 1 and 2, the top of the steel pipe 7 protrudes into the single-pipe jet grouting pile 6 and is 0.5 m higher, so that the roof beam 10 and the connecting beam 11 can be conveniently poured in the later period, and meanwhile, the height limiting requirement is met.
The use process is briefly described: when the problem of difficulty in supporting foundation pit in a narrow construction area and the problem of influence of construction on the safety of the existing building structure and a river channel are solved, soil bags 5 are stacked on one side of the river channel 2 in a first stage, influence on the periphery of the foundation pit is reduced, brick walls 9 are built on one side of a house 3, then a water-facing pit 4 is excavated in the foundation 1, single-pipe jet grouting piles 6 are installed on two sides of the water-facing pit 4, meanwhile steel pipes 7 are closely inserted in the single-pipe jet grouting piles 6, profile steel waist beams 8 are installed between the single-pipe jet grouting piles 6 for supporting, the foundation pit supporting is met, the single-pipe jet grouting piles 6 are used without large-scale equipment case operation, then a pipeline is buried in a second stage, meanwhile, the profile steel waist beams 8 are removed, then a permeable material layer 12 is backfilled in the water-facing pit 4, a top pressure roof beam 10 is poured on the top of the single-pipe jet grouting piles 6, and a connecting beam 11 is poured between the pressure roof beams 10 to be converted into a portal double-row pile structure, and the permanent gravity type retaining structure is formed by the profile steel waist beams 12.
Example 2:
referring to fig. 1 and 2, a soil retaining structure is supported by a water-facing pit in a narrow area, a supporting base plate 15 and a cover plate 16 which are matched with a pipeline 14 for use are respectively installed in the water-facing pit 4, springs 17 are installed on two sides of the bottom of the cover plate 16, a clamping plate 18 which is clamped with the pipeline 14 is installed at one end, away from the cover plate 16, of each spring 17, the bottom of the pipeline 14 is supported by the supporting base plate 15, and meanwhile, the clamping plate 18 is driven by the elasticity of the springs 17 to clamp two sides of the pipeline 14, so that the position of the pipeline 14 is fixedly arranged, the functions of deflection and bending when the pipeline is buried in water are achieved, and the practicability is improved.
Referring to fig. 3, the adjacent intervals of the section steel wales 8 are 3 meters, and the supporting effect on the water-based pit 4 is improved.
Referring to fig. 5, the adjacent distance between the connecting beams 11 is 2 m, so that the earth and stone can be conveniently backfilled into the water-bearing pit 4 at a later stage.
Referring to fig. 4, pavement filling layers 13 are cast on top of the capping beams 10 and the connecting beams 11, so that the foundation pit meets the pavement requirements after backfilling.
The use process is briefly described: when the pipeline needs to be temporarily supported to avoid deflection and bending, the supporting bottom plate 15 is arranged in the water-critical pit 4 to support the bottom of the pipeline 14, so that the pipeline 14 is prevented from sinking in part, meanwhile, the cover plate 16 is arranged at the top of the pipeline 14, the spring force of the spring 17 can drive the clamping plate 18 to clamp the two sides of the pipeline 14, so that the position of the pipeline 14 is fixed, and the cover plate 16 can be removed and taken out when the water permeable material layer 12 is backfilled.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (7)
1. The utility model provides a soil structure is kept off in adjacent water-based hole of narrow region support, includes ground (1), river course (2), house (3) and sets up adjacent water-based hole (4) in ground (1) inside, its characterized in that: the inside of face water foundation ditch (4) is provided with pipeline (14), single tube jet grouting pile (6) are all installed to the both sides of the inside of face water foundation ditch (4), the internally mounted of single tube jet grouting pile (6) has steel pipe (7), face and be provided with soil bag (5) between water foundation ditch (4) and river course (2), the inside of face water foundation ditch (4) is provided with shaped steel waist rail (8) and continuous beam (11) that are connected with single tube jet grouting pile (6), pressure roof beam (10) have been pour at the top of single tube jet grouting pile (6), the inside packing of face water foundation ditch (4) has permeable material layer (12) that use with pipeline (14) cooperation, brick wall (9) that use with house (3) cooperation is installed to one side at face water foundation ditch (4) top.
The inside of face water foundation ditch (4) is installed respectively and is used supporting baseplate (15) and apron (16) with pipeline (14) cooperation, spring (17) are all installed to the both sides of apron (16) bottom, splint (18) with pipeline (14) joint are installed to the one end that apron (16) were kept away from to spring (17).
2. The narrow regional water-bearing pit retaining soil structure of claim 1, wherein: the single-pipe jet grouting pile (6) arranged on one side of the water foundation pit (4) close to the river channel (2) is double-layered.
3. The narrow regional water-bearing pit retaining soil structure of claim 1, wherein: the surface of the steel pipe (7) is coated with an anti-corrosion coating.
4. The narrow regional water-bearing pit retaining soil structure of claim 1, wherein: the top of the steel pipe (7) protrudes into the single-pipe jet grouting pile (6) and is 0.5 meter higher than the single-pipe jet grouting pile.
5. The narrow regional water-bearing pit retaining soil structure of claim 1, wherein: the adjacent distance between the profile steel waist beams (8) is 3 meters.
6. The narrow regional water-bearing pit retaining soil structure of claim 1, wherein: the adjacent distance between the connecting beams (11) is 2 meters.
7. The narrow regional water-bearing pit retaining soil structure of claim 1, wherein: the pavement filling layers (13) are respectively poured at the tops of the top beams (10) and the connecting beams (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321812874.8U CN220318548U (en) | 2023-07-11 | 2023-07-11 | Soil retaining structure for water-facing pit support in narrow region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321812874.8U CN220318548U (en) | 2023-07-11 | 2023-07-11 | Soil retaining structure for water-facing pit support in narrow region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220318548U true CN220318548U (en) | 2024-01-09 |
Family
ID=89415382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321812874.8U Active CN220318548U (en) | 2023-07-11 | 2023-07-11 | Soil retaining structure for water-facing pit support in narrow region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220318548U (en) |
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2023
- 2023-07-11 CN CN202321812874.8U patent/CN220318548U/en active Active
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