CN112627198A - Foundation pit supporting system with drainage function and construction method thereof - Google Patents
Foundation pit supporting system with drainage function and construction method thereof Download PDFInfo
- Publication number
- CN112627198A CN112627198A CN202110073149.2A CN202110073149A CN112627198A CN 112627198 A CN112627198 A CN 112627198A CN 202110073149 A CN202110073149 A CN 202110073149A CN 112627198 A CN112627198 A CN 112627198A
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- water
- pile structure
- pit
- guide pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
Abstract
The invention relates to a foundation pit supporting system with a drainage function and a construction method thereof, wherein the foundation pit supporting system comprises the following components: a support pile structure arranged along the design position of the foundation pit; a plurality of rows of holes arranged on the support pile structure; a water collecting pit formed at the bottom of the foundation pit; the first flow guide pipe is communicated with the hole and the water collecting pit, water in soil around the foundation pit is drained into the water collecting pit through the first flow guide pipe, so that water drainage on the side wall of the foundation pit is achieved, the problem that water seepage easily occurs on the side wall of the foundation pit is solved, and concrete sprayed to the supporting pile structure can be firmly attached to the supporting pile structure to form a firm water-stop supporting curtain, so that collapse of soil on the side wall of the foundation pit is avoided.
Description
Technical Field
The invention relates to the technical field of deep foundation pit drainage, in particular to a foundation pit supporting system with a drainage function and a construction method thereof.
Background
With the continuous development of social economy in China, more and more high-rise buildings are provided, the drainage of a foundation pit is particularly important in the process of foundation pit support and earthwork excavation, the drainage is carried out in the foundation pit for smooth earthwork excavation, and the drainage is carried out on the periphery of the foundation pit for the safety of buildings and pavements around the foundation pit.
The construction is usually taken among the prior art and is dredged the well and carry out precipitation to the foundation ditch, set up the inspection well in the peripheral certain distance department of fender pile structure of foundation ditch, but the drainage effect of dredged well is limited, still have partial rivers to fender pile structure department and outwards ooze, make whole fender pile structure moist because of the infiltration of everywhere, thereby make the concrete that sprays in the fender pile structure can't firmly attach to on the fender pile structure, the effect of strutting and manger plate has been reduced, and excavation of earthwork leads to the interior groundwater level of foundation ditch to reduce in the foundation ditch, a large amount of groundwater peripheral in foundation ditch can gush into in the foundation ditch, powerful water pressure can have very big pressure to the fender pile structure, lead to the foundation ditch to collapse very easily, there is very big potential safety hazard.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a foundation pit supporting system with a drainage function and a construction method thereof so as to solve the problem that the existing foundation pit side wall is easy to seep water.
In order to achieve the above object, the present invention provides a foundation pit supporting system with a drainage function, comprising:
a support pile structure arranged along the design position of the foundation pit;
a plurality of rows of holes arranged on the support pile structure;
the water collecting pit is formed at the bottom of the foundation pit; and
and the first guide pipe is communicated with the holes and the water collecting pit, and water in the soil body around the foundation pit is discharged into the water collecting pit through the first guide pipe, so that the water on the side wall of the foundation pit is discharged.
According to the invention, the support pile structure is provided with the plurality of row holes, so that a water flow channel is formed on the support pile structure, water in soil around the foundation pit can be gathered in the holes, and then the water in the holes is drained into the water collecting pit through the first flow guide pipe, so that the drainage of the side wall of the foundation pit is realized, the problem of easy water seepage of the side wall of the foundation pit is solved, the concrete sprayed on the support pile structure can be firmly attached to the support pile structure to form a firm water-stopping support curtain, and further the collapse of the soil on the side wall of the foundation pit is avoided.
The foundation pit supporting system with the water drainage function is further improved in that the foundation pit supporting system further comprises a plurality of rows of anchor holes formed in the supporting pile structure and the side wall of the foundation pit, prestressed steel strands anchored into the supporting pile structure and the side wall of the foundation pit through the anchor holes, a second guide pipe with the end part inserted into the anchor holes, and a blocking structure poured at the orifice of the anchor hole, wherein the orifice of the anchor hole is blocked through the blocking structure and the end part of the second guide pipe is embedded and fixed;
and the second guide pipe is communicated with the anchor hole and the water collecting pit to discharge water in the soil body around the foundation pit into the water collecting pit, so that the side wall of the foundation pit is drained.
The foundation pit supporting system with the drainage function is further improved in that the foundation pit supporting system further comprises a fence component;
the prestressed steel strand extends out of the supporting pile structure to form a tensioning end, and the enclosure assembly is sleeved on the tensioning end and is blocked on the supporting pile structure;
and tensioning the prestressed steel strand to enable the enclosure assembly to be pressed on the supported pile structure.
The foundation pit supporting system with the drainage function is further improved in that the enclosure assembly comprises a reinforcing member which is sleeved on the prestress steel strand and is arranged on the supporting pile structure in a blocking mode, and an anchorage device which is sleeved on the prestress steel strand and is tightly clamped on the prestress steel strand and is positioned on the outer side of the reinforcing member;
and pressing the reinforcing member on the supporting pile structure through the anchorage device so as to press the enclosure assembly on the supporting pile structure.
The foundation pit supporting system with the drainage function is further improved in that the prestressed steel strand is inclined;
the enclosure assembly further comprises a plurality of cushion blocks fixedly arranged on one side of the reinforcing member close to the supporting pile structure, and the cushion blocks and the prestressed steel strands are alternately arranged;
one side surface of the cushion block close to the reinforcing piece is inclined and is vertical to the projection of the prestressed steel strand on the side surface;
the prestress wire is perpendicular to the reinforcing piece.
The foundation pit supporting system with the drainage function is further improved in that the foundation pit supporting system further comprises a water pump arranged in the water collecting pit, a sedimentation tank arranged on the ground close to the foundation pit and a drainage pipe communicated with the water pump and the sedimentation tank;
and pumping the water in the sump to the sedimentation tank through the water pump and the drainage pipe.
The invention also provides a construction method of the foundation pit supporting system with the drainage function, which comprises the following steps:
providing a support pile structure, and driving the support pile structure into a soil body along the design position of a foundation pit;
a plurality of rows of holes are formed in the supporting pile structure;
excavating at the bottom of the foundation pit to form a water collecting pit; and
and providing a first guide pipe, so that the first guide pipe is communicated with the hole and the water collecting pit, and discharging water in soil around the foundation pit into the water collecting pit through the first guide pipe, thereby realizing the drainage of the side wall of the foundation pit.
The construction method of the foundation pit supporting system with the drainage function is further improved in that the method further comprises the following steps:
forming a plurality of rows of anchor holes on the supporting pile structure and the side wall of the foundation pit;
providing a plurality of prestressed steel strands, and anchoring the prestressed steel strands into the supporting pile structure and the side wall of the foundation pit through the anchor hole;
providing a second guide pipe, inserting the end part of the second guide pipe into the anchor hole, pouring cement mortar into the orifice of the anchor hole to form a blocking structure so as to block the orifice of the anchor hole, and burying and fixing the end part of the second guide pipe;
and communicating the second guide pipe with the anchor hole and the water collecting pit, and discharging water in soil around the foundation pit into the water collecting pit, so that the water on the side wall of the foundation pit is discharged.
The construction method of the foundation pit supporting system with the drainage function of the invention is further improved in that,
it will the prestressing force steel strand wires pass through the anchor eye anchor is gone into prop up fender structure with during in the foundation ditch lateral wall, provide and enclose the fender subassembly, make prestressing force steel strand wires part stretch out in prop up fender structure and form the stretch-draw end, will enclose keep off the subassembly cover establish install in stretch-draw end is last and keep off and locate prop up on the fender structure, through stretch-draw prestressing force steel strand wires make it compresses tightly on the fender structure to enclose the subassembly.
The construction method of the foundation pit supporting system with the drainage function is further improved in that the method further comprises the following steps:
providing a water pump, and installing the water pump in the water collecting pit;
constructing a sedimentation tank on the ground close to the foundation pit;
and providing a drainage pipe, and enabling the drainage pipe to be communicated with the water pump and the sedimentation tank.
Drawings
Figure 1 is a side cross-sectional view of the present invention having a drainage function in an excavation supporting system.
Fig. 2 is a partially enlarged schematic view of fig. 1.
Figure 3 is a front cross-sectional view of the foundation pit support system with drainage of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3.
In the figure: the system comprises a supporting pile structure-1, a slope protection pile-11, a jet grouting pile-12, holes-2, a water collecting pit-3, a first guide pipe-4, prestressed steel strands-5, an anchoring structure-51, a surrounding block assembly-6, a reinforcing member-61, an anchorage device-62, a cushion block-63 and a sedimentation tank-7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a foundation pit supporting system with a drainage function, which is used for draining water on the side wall of a foundation pit. The water drainage device comprises a supporting pile structure, a hole, a water collecting pit and a first flow guide pipe, wherein a plurality of row holes are formed in the supporting pile structure, so that a water flow channel is formed in the supporting pile structure, water in soil around a foundation pit can be gathered in the hole, and the water in the hole is drained into the water collecting pit through the first flow guide pipe, so that the side wall of the foundation pit is drained, the problem that the side wall of the foundation pit is easy to seep water is solved, concrete sprayed to the supporting pile structure can be firmly attached to the supporting pile structure to form a firm water-stopping supporting curtain, and further the collapse of the soil on the side wall of the foundation pit is avoided.
The foundation pit supporting system with the drainage function of the invention is explained below with reference to the accompanying drawings.
Referring to fig. 1 and 4, in the present embodiment, an excavation supporting system having a drainage function includes: the foundation pit drainage system comprises a supporting pile structure 1 arranged along the design position of a foundation pit, a plurality of rows of holes 2 arranged on the supporting pile structure 1, a water collecting pit 3 formed at the bottom of the foundation pit and a first flow guide pipe 4 communicated with the holes 2 and the water collecting pit 3, wherein water in soil around the foundation pit is drained into the water collecting pit 3 through the first flow guide pipe 4, so that drainage of the side wall of the foundation pit is realized. Preferably, the end of the first draft tube 4 is inserted into the hole 2 and the sump 3 is located close to the support pile structure 1.
Excavation supporting system is through seting up a plurality of round hole holes 2 on fender pile structure 1 in this embodiment, thereby form rivers passageway on fender pile structure 1, make hydroenergy in fender pile structure 1 enough assemble in hole 2, the rethread first honeycomb duct 4 is with the water drainage in the hole 2 in the sump pit 3, thereby realize the drainage to the foundation ditch lateral wall, thereby solved the problem of the easy infiltration of fender pile structure 1, in order to ensure that the concrete that sprays in fender pile structure 1 can firmly be attached to and form firm stagnant water support curtain on fender pile structure 1, and then avoid the collapse of foundation ditch lateral wall soil body.
Referring to fig. 2 and 3, further, the foundation pit supporting system further includes a plurality of rows of anchor holes formed in the supporting pile structure 1 and the side wall of the foundation pit, prestressed steel strands 5 anchored into the supporting pile structure 1 and the side wall of the foundation pit through the anchor holes, a second guide pipe with an end inserted into the anchor holes, and a plugging structure formed at the hole opening of the anchor holes by pouring, wherein the plugging structure plugs the hole opening of the anchor hole and buries the end of the second guide pipe, and water in the soil around the foundation pit is drained into the sump 3 through the second guide pipe communicating the anchor holes and the sump 3, so that the side wall of the foundation pit is drained.
Referring to fig. 1 and 2, further, the jet grouting piles 12 and the slope protection piles 11 are arranged in an engaged manner, and the slope protection piles 11 are closer to the inside of the foundation pit than the jet grouting piles 12. The outer wall of the jet grouting pile 12 is sprayed to form a concrete layer. Because the slope protection stake 11 is that the concrete pile can not ooze water, and the jet grouting stake 12 is reinforced by cement and soil body and forms, consequently only jet grouting stake 12 can ooze water, this application sets up hole 2 on jet grouting stake 12 at jet grouting stake 12, form initiative rivers passageway, and in order to avoid the infiltration of anchor hole department, also bury the second honeycomb duct in the anchor hole, so that the water of soil body around the foundation ditch is amalgamated in hole 2 and anchor hole, discharge jet grouting stake 12 with it again, thereby discharge the water of foundation ditch lateral wall department, in order to reduce the water pressure of foundation ditch lateral wall department, in order to avoid too big and lead to the foundation ditch to collapse of water pressure.
Referring to fig. 1 and fig. 2, further, the foundation pit supporting system further includes a retaining assembly 6, a portion of the prestressed steel strand 5 extends out of the supporting pile structure 1 to form a tensioning end, the retaining assembly 6 is sleeved on the tensioning end and is retained on the supporting pile structure 1, and the retaining assembly is pressed on the supporting pile structure 1 by tensioning the prestressed steel strand 5.
Referring to fig. 1 and 3, further, the support pile structure 1 includes slope protection piles 11 and jet grouting piles 12 alternately arranged along the designed position of the foundation pit, the prestressed steel strands 5 are anchored into the jet grouting piles 12 and the side wall of the foundation pit, and the anchoring structures 51 are formed in the portions of the anchor holes far away from the support pile structure 1 in a pouring mode and anchor the prestressed steel strands 5.
Preferably, the prestressed steel strands 5 and the holes 2 are alternately arranged at intervals along the height direction of the support pile structure 1, and the enclosure assemblies 6 are transversely arranged along the length direction of the support pile structure 1.
Referring to fig. 2 and fig. 3, in the present embodiment, the enclosure assembly 6 includes a reinforcing member 61 sleeved on the prestressed steel strand 5 and blocking the supporting pile structure 1, and an anchor 62 sleeved on the prestressed steel strand 5 and located outside the reinforcing member 61, and the reinforcing member 61 is pressed against the supporting pile structure 1 through the anchor 62, so that the enclosure assembly is pressed against the supporting pile structure 1.
Referring to fig. 1 and 2, further, the prestressed steel strand 5 is inclined, the enclosure assembly 6 further includes a plurality of cushion blocks 63 fixedly disposed on one side of the reinforcing member 61 close to the support pile structure 1, the cushion blocks 63 and the prestressed steel strand 5 are alternately disposed, one side of the cushion block 63 close to the reinforcing member 61 is inclined and perpendicular to the projection of the prestressed steel strand 5 on the side, and the prestressed steel strand 5 is perpendicular to the reinforcing member 61.
Referring to fig. 1 and 2, preferably, the reinforcing member 61 includes a strip-shaped connecting plate and a pair of i-beams fixedly arranged on the connecting plate along a length direction of the connecting plate, a gap is formed between the pair of i-beams, the length direction of the gap is consistent with a length direction of the prestressed steel strand 5, the prestressed steel strand 5 can pass through and extend out of the gap, the anchor 62 is attached to the connecting plate, and the anchor 62 is sleeved and clamped on the prestressed steel strand 5 to apply an acting force to the cushion block 63 and the reinforcing member 61, so that the reinforcing member 61 applies a construction acting force to the slope protection pile 11 and the jet grouting pile 12, thereby tightly pressing the slope protection pile 11 and the jet grouting pile 12 on the side wall of the foundation pit, and ensuring stability of the side.
Preferably, the foundation pit supporting system further includes a crown beam provided above the supporting pile structure 1 along the design position of the foundation pit, an anchor rod anchored into the crown beam and the side wall of the foundation pit, and a retaining wall provided above the crown beam along the side wall of the foundation pit.
Referring to fig. 3, in this embodiment, the foundation pit supporting system further includes a water pump disposed in the sump 3, a sedimentation tank 7 disposed on the ground near the foundation pit, and a drainage pipe communicating the water pump and the sedimentation tank 7, and the water in the sump 3 is pumped to the sedimentation tank 7 through the water pump and the drainage pipe.
Preferably, the jet grouting pile 12 is higher than the jet grouting pile 12.
The operation of the excavation supporting system with the drainage function of the present invention will be described below.
Water on the side wall of the foundation pit permeates into the jet grouting piles 12, water in soil around the foundation pit permeates into the jet grouting piles 12 and then flows into the first guide pipe through the holes 2, and flows into the second guide pipe through the anchor rod holes, water in the first guide pipe and the second guide pipe is discharged into the water collecting pit 3, and water in the water collecting pit 3 is pumped to the sedimentation tank 7 through the water pump.
The invention also provides a construction method of the foundation pit supporting system with the drainage function, which comprises the following steps:
providing a support pile structure 1, and driving the support pile structure 1 into a soil body along the designed position of the foundation pit.
A plurality of rows of holes 2 are arranged on the support pile structure 1.
And excavating at the bottom of the foundation pit to form a sump 3.
And providing a first guide pipe 4, enabling the first guide pipe 4 to be communicated with the hole 2 and the sump 3, and discharging water in soil around the foundation pit into the sump 3 through the first guide pipe 4, thereby realizing the drainage of the side wall of the foundation pit.
Further, the construction method also comprises the following steps:
and a plurality of rows of anchor holes are formed in the supporting pile structure 1 and the side wall of the foundation pit.
And providing a plurality of prestressed steel strands, and anchoring the prestressed steel strands 5 into the supporting pile structure 1 and the side wall of the foundation pit in rows.
And providing a second guide pipe, inserting the end part of the second guide pipe into the anchor hole, pouring cement mortar into the orifice of the anchor hole to form a blocking structure so as to block the orifice of the anchor hole, and burying the end part of the second guide pipe.
And the second flow guide pipe is communicated with the anchor hole and the water collecting pit 3, and water in soil around the foundation pit is discharged into the water collecting pit 3, so that the water on the side wall of the foundation pit is discharged.
Furthermore, when anchoring a plurality of prestressed steel strands 5 in rows into the supporting pile structure 1 and the side wall of the foundation pit, the enclosure assembly is provided, so that the prestressed steel strands 5 partially extend out of the jet grouting pile 12 to form a tensioning end, the enclosure assembly 6 is sleeved and installed on the tensioning end and is blocked on the supporting pile structure 1, and the enclosure assembly is pressed on the supporting pile structure 1 through the tensioning prestressed steel strands 5.
Preferably, providing a support pile structure 1, driving the support pile structure 1 into the soil body along the designed position of the foundation pit comprises:
providing a slope protection pile 11 and a jet grouting pile 12, and alternately driving the slope protection pile 11 and the jet grouting pile 12 into a soil body along the design position of the foundation pit.
When a plurality of prestressed steel strands 5 are anchored in rows into the support pile structure 1 and the side wall of the foundation pit, the plurality of prestressed steel strands 5 are anchored in rows into the jet grouting pile 12 and the side wall of the foundation pit.
In this embodiment, the method further includes the following steps:
a water pump is provided and installed in sump 3.
And constructing a sedimentation tank 7 on the ground close to the foundation pit.
And a drainage pipe is provided, so that the drainage pipe is communicated with the water pump and the sedimentation tank 7.
By adopting the technical scheme, the invention has the following beneficial effects:
according to the invention, the support pile structure is provided with the plurality of row holes, so that a water flow channel is formed on the support pile structure, water in soil around the foundation pit can be gathered in the holes, and then the water in the holes is drained into the water collecting pit through the first flow guide pipe, so that the drainage of the side wall of the foundation pit is realized, the problem of easy water seepage of the side wall of the foundation pit is solved, the concrete sprayed on the support pile structure can be firmly attached to the support pile structure to form a firm water-stopping support curtain, and further the collapse of the soil on the side wall of the foundation pit is avoided.
Claims (10)
1. A foundation pit support system with drainage function, characterized by includes:
a support pile structure arranged along the design position of the foundation pit;
a plurality of rows of holes arranged on the support pile structure;
the water collecting pit is formed at the bottom of the foundation pit; and
and the first guide pipe is communicated with the holes and the water collecting pit, and water in the soil body around the foundation pit is discharged into the water collecting pit through the first guide pipe, so that the water on the side wall of the foundation pit is discharged.
2. The foundation pit supporting system with the water drainage function according to claim 1, further comprising a plurality of rows of anchor holes provided in the supporting pile structure and the side wall of the foundation pit, prestressed steel strands anchored into the supporting pile structure and the side wall of the foundation pit through the anchor holes, a second guide pipe having an end inserted into the anchor holes, and a plugging structure poured at an orifice of the anchor hole, wherein the orifice of the anchor hole is plugged by the plugging structure and the end of the second guide pipe is buried;
and the second guide pipe is communicated with the anchor hole and the water collecting pit to discharge water in the soil body around the foundation pit into the water collecting pit, so that the side wall of the foundation pit is drained.
3. The system of claim 2, further comprising a containment assembly;
the prestressed steel strand extends out of the supporting pile structure to form a tensioning end, and the enclosure assembly is sleeved on the tensioning end and is blocked on the supporting pile structure;
and tensioning the prestressed steel strand to enable the enclosure assembly to be pressed on the supported pile structure.
4. The foundation pit supporting system with the water drainage function according to claim 3, wherein the enclosure assembly comprises a reinforcing member sleeved on the prestressed steel strand and blocking the supporting pile structure, and an anchorage member sleeved on and clamped on the prestressed steel strand and located on the outer side of the reinforcing member;
and pressing the reinforcing member on the supporting pile structure through the anchorage device so as to press the enclosure assembly on the supporting pile structure.
5. The foundation pit supporting system with the water drainage function according to claim 4, wherein the prestressed steel strand is inclined;
the enclosure assembly further comprises a plurality of cushion blocks fixedly arranged on one side of the reinforcing member close to the supporting pile structure, and the cushion blocks and the prestressed steel strands are alternately arranged;
one side surface of the cushion block close to the reinforcing piece is inclined and is vertical to the projection of the prestressed steel strand on the side surface;
the prestress wire is perpendicular to the reinforcing piece.
6. The foundation pit supporting system with the water drainage function according to claim 1, further comprising a water pump arranged in the water collection pit, a sedimentation tank arranged on the ground close to the foundation pit, and a drainage pipe communicating the water pump and the sedimentation tank;
and pumping the water in the sump to the sedimentation tank through the water pump and the drainage pipe.
7. A construction method of a foundation pit supporting system with a drainage function is characterized by comprising the following steps:
providing a support pile structure, and driving the support pile structure into a soil body along the design position of a foundation pit;
a plurality of rows of holes are formed in the supporting pile structure;
excavating at the bottom of the foundation pit to form a water collecting pit; and
and providing a first guide pipe, so that the first guide pipe is communicated with the hole and the water collecting pit, and discharging water in soil around the foundation pit into the water collecting pit through the first guide pipe, thereby realizing the drainage of the side wall of the foundation pit.
8. The method of constructing a foundation pit support system with a drainage function as claimed in claim 7, further comprising the steps of:
forming a plurality of rows of anchor holes on the supporting pile structure and the side wall of the foundation pit;
providing a plurality of prestressed steel strands, and anchoring the prestressed steel strands into the supporting pile structure and the side wall of the foundation pit through the anchor hole;
providing a second guide pipe, inserting the end part of the second guide pipe into the anchor hole, pouring cement mortar into the orifice of the anchor hole to form a blocking structure so as to block the orifice of the anchor hole, and burying and fixing the end part of the second guide pipe;
and communicating the second guide pipe with the anchor hole and the water collecting pit, and discharging water in soil around the foundation pit into the water collecting pit, so that the water on the side wall of the foundation pit is discharged.
9. The method of constructing a foundation pit supporting system having a drainage function according to claim 8,
it will the prestressing force steel strand wires pass through the anchor eye anchor is gone into prop up fender structure with during in the foundation ditch lateral wall, provide and enclose the fender subassembly, make prestressing force steel strand wires part stretch out in prop up fender structure and form the stretch-draw end, will enclose keep off the subassembly cover establish install in stretch-draw end is last and keep off and locate prop up on the fender structure, through stretch-draw prestressing force steel strand wires make it compresses tightly on the fender structure to enclose the subassembly.
10. The method of constructing a foundation pit support system with a drainage function as claimed in claim 7, further comprising the steps of:
providing a water pump, and installing the water pump in the water collecting pit;
constructing a sedimentation tank on the ground close to the foundation pit;
and providing a drainage pipe, and enabling the drainage pipe to be communicated with the water pump and the sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073149.2A CN112627198A (en) | 2021-01-20 | 2021-01-20 | Foundation pit supporting system with drainage function and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073149.2A CN112627198A (en) | 2021-01-20 | 2021-01-20 | Foundation pit supporting system with drainage function and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112627198A true CN112627198A (en) | 2021-04-09 |
Family
ID=75294715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110073149.2A Pending CN112627198A (en) | 2021-01-20 | 2021-01-20 | Foundation pit supporting system with drainage function and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112627198A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089688A (en) * | 2021-05-18 | 2021-07-09 | 湖北工业大学 | Safety support device is used in civil engineering construction |
| CN114250800A (en) * | 2021-12-31 | 2022-03-29 | 北京市政建设集团有限责任公司 | Treatment method for seepage of jet grouting pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776891A (en) * | 2012-08-03 | 2012-11-14 | 天津二十冶建设有限公司 | Method for processing underground supporting structure leakage of foundation with rock block layer in soft soil |
| CN107246008A (en) * | 2017-06-30 | 2017-10-13 | 浙江大学 | A kind of side slope protection from draining anchor cable system and its construction method |
| CN207143961U (en) * | 2017-07-07 | 2018-03-27 | 中国建筑第八工程局有限公司 | With reference to the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology |
| CN207348070U (en) * | 2017-09-07 | 2018-05-11 | 甘肃中建市政工程勘察设计研究院 | Layer cake formula jetting cement surface layer foundation pit side-wall water sealing structure |
| CN108166513A (en) * | 2018-01-02 | 2018-06-15 | 深圳市勘察测绘院有限公司 | Anchor hole and the pore-forming technique in the dual-purpose hole of osculum in a kind of dregs side slope |
-
2021
- 2021-01-20 CN CN202110073149.2A patent/CN112627198A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776891A (en) * | 2012-08-03 | 2012-11-14 | 天津二十冶建设有限公司 | Method for processing underground supporting structure leakage of foundation with rock block layer in soft soil |
| CN107246008A (en) * | 2017-06-30 | 2017-10-13 | 浙江大学 | A kind of side slope protection from draining anchor cable system and its construction method |
| CN207143961U (en) * | 2017-07-07 | 2018-03-27 | 中国建筑第八工程局有限公司 | With reference to the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology |
| CN207348070U (en) * | 2017-09-07 | 2018-05-11 | 甘肃中建市政工程勘察设计研究院 | Layer cake formula jetting cement surface layer foundation pit side-wall water sealing structure |
| CN108166513A (en) * | 2018-01-02 | 2018-06-15 | 深圳市勘察测绘院有限公司 | Anchor hole and the pore-forming technique in the dual-purpose hole of osculum in a kind of dregs side slope |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089688A (en) * | 2021-05-18 | 2021-07-09 | 湖北工业大学 | Safety support device is used in civil engineering construction |
| CN114250800A (en) * | 2021-12-31 | 2022-03-29 | 北京市政建设集团有限责任公司 | Treatment method for seepage of jet grouting pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212742566U (en) | Stable in structure's excavation supporting | |
| CN112627198A (en) | Foundation pit supporting system with drainage function and construction method thereof | |
| CN110397050B (en) | Beam-anchor type light drainage retaining wall and construction method thereof | |
| KR101612521B1 (en) | Method for constructing underground structures restraining transformation and using external wall | |
| CN111235990A (en) | Cutting slope toe beam plate type reinforcing structure and construction method | |
| CN110952574A (en) | Method for treating landslide deformation body | |
| KR100665984B1 (en) | The construction method of basement self drainage | |
| CN113089687A (en) | Slope protection method and device | |
| CN216739655U (en) | Foundation pit support meeting underground structure | |
| CN110004938A (en) | A kind of foundation pit side-wall structural strengthening suspension device | |
| CN212742561U (en) | Foundation pit supporting structure convenient to modularization installation | |
| CN210066763U (en) | Foundation pit side wall structure reinforcing and supporting device | |
| CN211773802U (en) | Precipitation supporting construction of sandy cobble stratum station foundation ditch | |
| CN111705825B (en) | Drainage and landing permanent-temporary integrated construction method for underground deep foundation pit | |
| CN212225231U (en) | Protective structure for bias tunnel portal | |
| CN211815253U (en) | Cutting slope toe beam plate type reinforced structure | |
| KR100748607B1 (en) | The construction method of basement drainage having double drainage canals and the system | |
| KR200434601Y1 (en) | Drain Board System Of Basement Floor Construction | |
| KR200203448Y1 (en) | A pre-cast retaining wall | |
| CN108018859B (en) | Emergency treatment method and structure for sudden surge of foundation pit | |
| CN206090580U (en) | Side slope support device in flood discharge influence scope | |
| KR100665985B1 (en) | The construction method of basement self drainage | |
| CN217580234U (en) | Drainage treatment structure for hillside refuse dump | |
| CN217782086U (en) | Water retaining construction structure of foundation pit | |
| CN219450660U (en) | Earth and rockfill dam downstream dam foot drainage structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |