CN210288426U - Permanent supporting structure for foundation pit in densely-arranged cast-in-place pile under complex environment - Google Patents
Permanent supporting structure for foundation pit in densely-arranged cast-in-place pile under complex environment Download PDFInfo
- Publication number
- CN210288426U CN210288426U CN201921089538.9U CN201921089538U CN210288426U CN 210288426 U CN210288426 U CN 210288426U CN 201921089538 U CN201921089538 U CN 201921089538U CN 210288426 U CN210288426 U CN 210288426U
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- water
- foundation ditch
- drainage tank
- foundation
- bored concrete
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000004567 concrete Substances 0.000 claims abstract description 36
- 239000003651 drinking water Substances 0.000 claims abstract description 16
- 235000020188 drinking water Nutrition 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 7
- 239000011150 reinforced concrete Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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Abstract
The utility model relates to a permanent supporting construction of foundation ditch in closely arranged bored concrete pile under complex environment in foundation ditch supporting field, aim at solving the problem of drainage in the foundation ditch, it includes the foundation ditch and locates a plurality of evenly distributed's in the foundation ditch outside ground soil body perpendicularly bored concrete pile, the bored concrete pile top is equipped with the hat roof beam, be equipped with the interior support between the arbitrary relative both sides of hat roof beam, be connected with the crossbeam that supports axial direction in the perpendicular to between the interior support, the subaerial suction pump that is equipped with in the foundation ditch outside, set up a plurality of parallel distribution's water drainage tank on the foundation ditch diapire, the diapire of foundation ditch is by all around and the foundation ditch diapire between the adjacent water drainage tank downward sloping gradually to the water drainage tank, be equipped with the drinking-water pipe in the water drainage tank, be equipped with. The utility model discloses have can be quick with the ponding discharge in the foundation ditch, improve the effect of the stability of foundation at the bottom of the foundation ditch.
Description
Technical Field
The utility model belongs to the technical field of the technique of excavation supporting and specifically relates to a permanent supporting construction of foundation ditch in closely arranged bored concrete pile under complex environment is related to.
Background
Present traditional foundation ditch supporting construction is mostly interim structural style, treats that the basement construction finishes promptly by abandonment and arrange the underground in permanently, and some temporary structure must still be demolishd, causes great wasting of resources, and it is big to have the construction risk, and the construction cycle is long, environmental pollution scheduling problem.
The prior Chinese patent with the publication number of CN207176700U discloses a permanent supporting structure of a foundation pit in a densely-arranged bored concrete pile under a complex environment, which comprises a first high-pressure jet grouting pile, a bored concrete pile, a second high-pressure jet grouting pile, a concrete hanging net, a crown beam, an inner support, a broken stone cushion layer, a reinforced concrete bottom plate and a foundation soil body, wherein the first high-pressure jet grouting pile is vertically arranged in the foundation soil body at the bottom of the foundation pit to form a composite foundation, the broken stone cushion layer is laid on the composite foundation, the reinforced concrete bottom plate is arranged on the broken stone cushion layer, the bored concrete pile adopts a reinforced concrete structure and is vertically arranged in the foundation soil body, one side between the bored concrete piles at the outer side of the foundation pit is connected through the second high-pressure jet grouting pile, the other side between the bored concrete piles at the inner side of the foundation pit is connected into a whole through the concrete hanging net, the tops of the bored concrete, and the top beam is connected with the steel bars of the top beam, and then concrete is poured to form a whole.
The above prior art solutions have the following drawbacks: when the foundation pit runs into a rainy day in the construction process, water in the foundation pit cannot be timely discharged, and water permeates into the foundation, so that the foundation is easy to collapse.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a support permanent supporting construction of foundation ditch in closely arranged bored concrete pile under complex environment, it has the function of the ponding of in time discharging foundation ditch bottom.
The utility model aims at realizing through the following technical scheme:
the utility model provides a permanent supporting construction of foundation ditch in closely arranged bored concrete pile under complex environment, includes the foundation ditch and locates a plurality of evenly distributed's in the foundation ditch outside ground soil body perpendicularly, the bored concrete pile top is equipped with guan liang, be equipped with between the arbitrary relative both sides of guanliang and support in, be connected with the crossbeam that supports axial direction in the perpendicular to between the interior support, the subaerial suction pump that is equipped with in the foundation ditch outside, set up a plurality of parallel distribution's water drainage tank on the foundation ditch diapire, the diapire of foundation ditch is by all around and the foundation ditch diapire between the adjacent water drainage tank downward sloping gradually to the water drainage tank, be equipped with the drinking-water pipe in the water drainage tank, be equipped with the water inlet on the drinking-water pipe, drinking-water pipe.
Through adopting above-mentioned technical scheme, when there is ponding foundation ditch diapire, ponding flows in the lower water drainage tank of relief along the inclined plane of diapire, takes the foundation ditch out through the water of suction pump in with the water drainage tank, then during the water pipe emits into municipal drainage network, reduces the time of ponding in the foundation ditch, prevents that the bottom of ponding infiltration foundation ditch from leading to the soil layer under the foundation ditch to take place to collapse, guarantees the stability of foundation ditch and the safety of construction.
The utility model discloses further set up to: the water inlet is provided with a filtering water cage, the filtering water cage is provided with a plurality of water filtering holes, and the filtering water cage is filled with filtering materials.
Through adopting above-mentioned technical scheme, ponding in the water drainage tank reentries the drinking-water pipe through the filtration of filtering the water cage, filters the water cage and blocks the silt of ponding outside intaking, avoids a large amount of silt to get into the drinking-water pipe and leads to the drinking-water pipe to block up, gets into the suction pump even and leads to the suction pump impaired. The filtration of filtering the water cage is favorable to improving the stability of the work of drawing water and going on to improve the efficiency of drawing water.
The utility model discloses further set up to: be equipped with the boss on water drainage tank's the inner wall, be equipped with the net apron of a plurality of sections and water drainage tank inner wall laminating on the boss, the upper surface and the foundation ditch diapire of net apron flush.
Through adopting above-mentioned technical scheme, the net apron that supports through the boss in the water drainage tank can avoid debris to get into water drainage tank and lead to water drainage tank to block up, guarantees the normal flow of ponding in the water drainage tank, can avoid constructor accident to step on empty simultaneously, improves the construction safety of foundation ditch, avoids the net apron that flushes with the foundation ditch, guarantees leveling of foundation ditch surface, guarantees the even running of transport vechicle.
The utility model discloses further set up to: and a pull ring is arranged in a gap penetrating through the grid cover plate, and a groove for accommodating one side edge of the pull ring is arranged on the upper surface of the grid cover plate.
Through adopting above-mentioned technical scheme, the pull ring can be more convenient open the net apron, and the pull ring is in the recess rather than protruding net apron when the pull ring does not use, avoids the pull ring often to be rolled, leads to pull ring and net apron to warp. Thereby prolonging the service life of the pull ring and the grid cover plate.
The utility model discloses further set up to: the diapire of water drainage tank is downward to both ends slope by water drainage tank's center, the inlet tube of drinking-water pipe sets up in water drainage tank's both ends.
Through adopting above-mentioned technical scheme, the diapire is by the center to the water drainage tank of both ends slope, makes ponding flow to the both ends of water drainage tank, only needs to set up the water inlet at the both ends of water drainage tank just can discharge water, and the less water inlet of quantity has reduced impurity entering drinking-water pipe in the ponding and has initiated the probability that the drinking-water pipe blockked up, guarantees the stability of drainage and goes on.
The utility model discloses further set up to: one side of the crown beam deviating from the foundation pit is cast with a water baffle plate higher than the ground surface, the bottom end of the water baffle plate is provided with an inclined baffle plate which is inserted into the ground and integrated with the water baffle plate, and the inclined baffle plate inclines towards one side deviating from the crown beam from the bottom end of the water baffle plate.
By adopting the technical scheme, the water baffle plate higher than the ground can block accumulated water on the ground surface outside the foundation pit, prevent the accumulated water outside the foundation pit from flowing into the foundation pit, reduce the pressure of water drainage in the foundation pit and reduce the erosion and penetration of the accumulated water to the foundation at the bottom of the foundation pit; further inserting ground of oblique baffle blocks the contact surface of bored concrete pile and earth's surface soil, prevents that the rainwater from permeating downwards in the gap of bored concrete pile and earth's surface soil, improves bored concrete pile's stability.
The utility model discloses further set up to: the bottom wall of the cross point of the inner support and the cross beam is connected with a support column, and one end of the support far away from the inner support is connected with a high-pressure jet grouting pile vertically arranged in a foundation pit bottom foundation.
By adopting the technical scheme, the cross points of the support columns and the inner supports are connected, the inner supports are stably supported, the stability of the cast-in-place pile is improved, the inner supports can be prevented from being broken from the middle, the cast-in-place pile can be used as an indoor bearing upright post after foundation pit construction is finished,
the utility model discloses further set up to: and the two sides of the connecting end of the inner support and the crown beam are integrally provided with inclined support beams connected with the crown beam, and the inclined support beams, the crown beam and the inner support form a triangle.
By adopting the technical scheme, the inclined supporting beam, the top beam and the inner support form a triangle, and the inner support and the top beam are stably connected, so that the cast-in-place pile is stabilized, the cast-in-place pile is prevented from toppling, and the construction safety in the foundation pit is ensured.
To sum up, the utility model discloses a beneficial technological effect does:
1. the water suction pump can quickly discharge accumulated water in the foundation pit through the water suction pipe in the drainage groove, so that the stability of the foundation at the bottom of the foundation pit is improved;
2. the grid cover plate and the filtering water cage reduce silt and impurities entering the water pumping pipe and the water pumping pump, and stable water pumping work of the water pumping pump is guaranteed;
3. the water baffle can block accumulated water outside the foundation pit, reduce the drainage pressure in the foundation pit and improve the stability of the low foundation of the foundation pit;
4. the support column and the diagonal bracing beam enable the inner support to be more stably connected with the cast-in-place pile, so that the inner support can stably support the cast-in-place pile, and the construction safety of the foundation pit is guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the support column of the present invention.
Fig. 3 is a schematic view of the structure of the drainage channel and the pumping pipe of the present invention.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
Fig. 5 is a schematic diagram of the structure of the grid cover plate of the present invention.
Description of the drawings: 1. filling piles; 11. a crown beam; 12. an inner support; 13. a cross beam; 14. a diagonal bracing beam; 15. a foundation pit; 2. a water pump; 21. a water pumping pipe; 22. a water discharge tank; 221. a boss; 222. a grid cover plate; 223. a pull ring; 224. a groove; 23. a water inlet; 24. a water filtering cage; 25. water filtering holes; 3. a support pillar; 31. high-pressure jet grouting piles; 4. a water baffle; 41. and an inclined baffle plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, for the utility model discloses a permanent supporting structure of a foundation pit 15 in a densely-arranged bored concrete pile inner support 12 under a complex environment, which comprises a bored concrete pile 1 vertically arranged in a foundation soil body outside the foundation pit 15, the bored concrete pile 1 is uniformly distributed outside the foundation pit 15, the bored concrete pile 1 is formed by pouring reinforced concrete, a crown beam 11 formed by pouring reinforced concrete is arranged at the top of the bored concrete pile 1, the bored concrete pile 1 is connected together into a whole through the crown beam 11, an inner support 12 is connected between any two opposite side edges of the crown beam 11, the inner support 12 is connected with a steel bar in the crown beam 11 through a steel bar and then poured by concrete, a beam 13 perpendicular to the axial direction of the inner support 12 is connected between the inner supports 12, a support column 3 for supporting the inner support 12 is arranged below the intersection of the inner support 12 and the beam 13, the one end that interior support 12 was kept away from to support column 3 is connected with high-pressure jet grouting pile 31 through reinforced concrete, and high-pressure jet grouting pile 31 sets up perpendicularly in foundation ditch 15 foundations, plays stable supporting role to interior support 12. Inclined supporting beams 14 are arranged on two sides of the connecting end of the inner support 12 and the crown beam 11, reinforced concrete is poured at two ends of each inclined supporting beam 14, reinforcing steel bars in the inclined supporting beams 14 are connected with reinforcing steel bars of the crown beam 11 and the inner support 12, the inclined supporting beams 14, the crown beam 11 and the inner support 12 form a triangle, and the connection stability of the inner support 12 and the crown beam 11 is improved. Further, a water baffle 4 higher than the ground surface is poured on one side of the crown beam 11 departing from the foundation pit 15, an inclined baffle 41 inserted into the ground and integrated with the water baffle 4 is arranged at the bottom end of the water baffle 4, and the inclined baffle 41 inclines towards one side departing from the crown beam 11 from the bottom end of the water baffle 4.
As shown in fig. 3 and 4, in order to discharge accumulated water in the foundation pit 15 in time, the water suction pumps 2 are arranged on the ground on two sides of the foundation pit 15, four drainage grooves 22 which are parallel to each other are formed in the bottom wall of the foundation pit 15, the bottom wall of the foundation pit 15 gradually inclines downwards towards the drainage grooves 22 from the periphery to the middle of the adjacent drainage grooves 22, the bottom wall of the drainage grooves 22 is provided with the centers of the drainage grooves 22, the two ends of the centers incline downwards, the drainage grooves 22 are internally provided with the water suction pipes 21, the water suction pipes 21 are communicated with the water suction pumps 2, and the output ends of the water suction pumps 2 are. The water inlet 23 of the pumping pipe 21 is arranged at two ends of the drainage groove 22, the water inlet 23 is connected with a filtering water cage 24, a plurality of filtering holes 25 are arranged on the filtering water cage 24, and plastic or gravel is filled in the filtering water cage 24 to serve as a filtering material.
As shown in fig. 5, in order to ensure the flatness of the bottom wall of the foundation pit 15, a boss 221 integrated with the drainage groove 22 is provided on the inner wall of the drainage groove 22, a plurality of sections of grid cover plates 222 abutted against the boss 221 are provided on the boss 221, two sides of the grid cover plates 222 are attached to the inner wall of the drainage groove 22, and the upper surface of the grid cover plates 222 is flush with the bottom wall of the foundation pit 15. Two pull rings 223 are further arranged in the gap penetrating through the grid cover plate 222, and a groove 224 for accommodating one side of the pull ring 223 is arranged on the upper surface of the grid cover plate 222.
The implementation principle of the embodiment is as follows: when having ponding in the foundation ditch 15, start suction pump 2, in the lower water drainage tank 22 of ponding flow direction relief of the 15 diapire of foundation ditch, ponding flows to drinking-water pipe 21 department to both ends by water drainage tank 22 centre, get into drinking-water pipe 21 after filtering of water cage 24, suction pump 2 takes ponding out in the foundation ditch 15 in discharging into municipal drainage network, when needs clearance water drainage tank 22, pull ring 223 pulls out, grip pull ring 223 and can open net apron 222, put into water drainage tank 22 with net apron 222 after the clearance is accomplished in with boss 221 butt, put into recess 224 with pull ring 223, guarantee that net apron 222 flushes with the 15 diapire of foundation ditch.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a permanent supporting construction of foundation ditch in closely arranged bored concrete pile under complex environment, includes foundation ditch (15) and locates a plurality of evenly distributed's in foundation ditch (15) outside ground soil body bored concrete pile (1) perpendicularly, bored concrete pile (1) top is equipped with hat roof beam (11), be equipped with between the arbitrary relative both sides of hat roof beam (11) interior support (12), be connected with crossbeam (13) that support (12) axial direction in the perpendicular to between interior support (12), its characterized in that: the subaerial suction pump (2) that is equipped with in foundation ditch (15) outside, set up a plurality of parallel distribution's water drainage tank (22) on foundation ditch (15) diapire, the diapire of foundation ditch (15) is by all around and the foundation ditch diapire between adjacent water drainage tank (22) downward sloping gradually to water drainage tank (22), be equipped with drinking-water pipe (21) in water drainage tank (22), be equipped with water inlet (23) on drinking-water pipe (21), drinking-water pipe (21) and suction pump (2) intercommunication, the output of suction pump (2) accesss to municipal drainage network.
2. The permanent supporting structure for the internal support foundation pit of the close-packed bored concrete pile in the complex environment according to claim 1, wherein: the water filter is characterized in that a filtering water cage (24) is arranged at the water inlet (23), a plurality of water filtering holes (25) are formed in the filtering water cage (24), and filtering materials are filled in the filtering water cage (24).
3. The permanent supporting structure for the internal support foundation pit of the close-packed bored concrete pile in the complex environment according to claim 1, wherein: be equipped with boss (221) on the inner wall of water drainage tank (22), be equipped with grid apron (222) of a plurality of sections and water drainage tank (22) inner wall laminating on boss (221), the upper surface and foundation ditch (15) diapire of grid apron (222) flush.
4. The permanent supporting structure for the foundation pit in the close-packed bored concrete pile in the complex environment according to claim 3, wherein: a pull ring (223) is arranged in a gap penetrating through the grid cover plate (222), and a groove (224) for accommodating one side edge of the pull ring (223) is arranged on the upper surface of the grid cover plate (222).
5. The permanent supporting structure for the internal support foundation pit of the close-packed bored concrete pile in the complex environment according to claim 1, wherein: the diapire of water drainage tank (22) is downward to both ends slope by the center of water drainage tank (22), the inlet tube of drinking-water pipe (21) sets up in the both ends of water drainage tank (22).
6. The permanent supporting structure for the internal support foundation pit of the close-packed bored concrete pile in the complex environment according to claim 1, wherein: one side of the crown beam (11) deviating from the foundation pit (15) is poured with a water baffle (4) higher than the ground surface, the bottom end of the water baffle (4) is provided with an inclined baffle (41) which is inserted into the ground and integrated with the water baffle (4), and the inclined baffle (41) inclines towards one side deviating from the crown beam (11) from the bottom end of the water baffle (4).
7. The permanent supporting structure for the internal support foundation pit of the close-packed bored concrete pile in the complex environment according to claim 1, wherein: the bottom wall of the cross point of the inner support (12) and the cross beam (13) is connected with a support column (3), and one end of the support far away from the inner support (12) is connected with a high-pressure jet grouting pile (31) vertically arranged in a foundation at the bottom of a foundation pit (15).
8. The permanent supporting structure for the internal support foundation pit of the close-packed bored concrete pile in the complex environment according to claim 1, wherein: and the two sides of the connecting end of the inner support (12) and the crown beam (11) are integrally provided with an inclined support beam (14) connected with the crown beam (11), and the inclined support beam (14), the crown beam (11) and the inner support (12) form a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089538.9U CN210288426U (en) | 2019-07-11 | 2019-07-11 | Permanent supporting structure for foundation pit in densely-arranged cast-in-place pile under complex environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089538.9U CN210288426U (en) | 2019-07-11 | 2019-07-11 | Permanent supporting structure for foundation pit in densely-arranged cast-in-place pile under complex environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210288426U true CN210288426U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921089538.9U Expired - Fee Related CN210288426U (en) | 2019-07-11 | 2019-07-11 | Permanent supporting structure for foundation pit in densely-arranged cast-in-place pile under complex environment |
Country Status (1)
| Country | Link |
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| CN (1) | CN210288426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565103A (en) * | 2021-07-14 | 2021-10-29 | 曹彦军 | Inner supporting structure for foundation pit |
| CN114837195A (en) * | 2022-05-20 | 2022-08-02 | 中交二航局第四工程有限公司 | Construction method for supporting foundation pit of deep mud layer of high slope |
-
2019
- 2019-07-11 CN CN201921089538.9U patent/CN210288426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565103A (en) * | 2021-07-14 | 2021-10-29 | 曹彦军 | Inner supporting structure for foundation pit |
| CN114837195A (en) * | 2022-05-20 | 2022-08-02 | 中交二航局第四工程有限公司 | Construction method for supporting foundation pit of deep mud layer of high slope |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |
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| CF01 | Termination of patent right due to non-payment of annual fee |