CN108978692B - Deep foundation pit drainage system - Google Patents
Deep foundation pit drainage system Download PDFInfo
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- CN108978692B CN108978692B CN201811064103.9A CN201811064103A CN108978692B CN 108978692 B CN108978692 B CN 108978692B CN 201811064103 A CN201811064103 A CN 201811064103A CN 108978692 B CN108978692 B CN 108978692B
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- 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
- E02D19/10—Restraining of underground water by lowering level of ground water
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- 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
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- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a deep foundation pit drainage system, which belongs to the technical field of building construction and comprises a foundation pit body, wherein drainage wells are arranged at four corners of the foundation pit body, a water pump is arranged in each drainage well, a supporting plate which is abutted against the peripheral side wall of the foundation pit body is arranged in the foundation pit body, a plurality of drainage pipes are arranged on the supporting plate, the drainage pipes penetrate through the supporting plate and are fixedly connected to the supporting plate, the end parts of the drainage pipes, far away from the closed end, in the side wall of the foundation pit body are closed ends, the end parts of the drainage pipes are open ends, the drainage pipes are provided with a plurality of drainage holes along the length direction of the drainage pipes, a plate body which is parallel to the supporting plate is also arranged in the foundation pit body, the plate body and the supporting plate are arranged at intervals, a fixing, the seepage water is discharged through drain pipe and sponge strip, prevents that foundation ditch body lateral wall from bearing pressure and producing and collapsing.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a deep foundation pit drainage system.
Background
The foundation pit engineering mainly comprises foundation pit supporting system design and construction and earthwork excavation, and is a system engineering with strong comprehensiveness. It requires close cooperation between geotechnical engineering and structural engineering technicians. The foundation pit supporting system is a temporary structure and is not needed after the construction of underground engineering is finished. The deep foundation pit engineering refers to earthwork excavation, supporting and precipitation engineering of a foundation pit (groove) with an excavation depth of more than 5m (including 5 m), or earthwork excavation, supporting and precipitation engineering of a foundation pit (groove) with an excavation depth of less than 5m but with complicated geological conditions, surrounding environment and underground pipelines or influencing the safety of adjacent buildings (structures).
Chinese patent with publication number CN207062965U discloses a drainage system for foundation pit, comprising a water tank surrounding the foundation pit, a drainage ditch arranged in the foundation pit, the drainage ditch comprising a main ditch and a branch ditch connected to the main ditch, the main ditch passing through the construction area in the foundation pit and communicating with a water collecting well arranged outside the construction area, the bottom plane of the water collecting well being lower than the plane where the bottom of the main ditch is located, and a drainage device guiding the water in the water collecting well into the water tank, the water tank being connected with an external drainage system, the drainage system can effectively drain away the accumulated water in the foundation pit generated in the construction engineering, especially the accumulated water in the foundation pit with high drainage efficiency, and has the advantages of simple structure, stability and reliability; however, the side wall of the foundation pit is collapsed due to the fact that rainwater permeates into the side wall of the foundation pit when raining, and the side wall of the foundation pit bears large pressure.
Disclosure of Invention
The invention aims to provide a deep foundation pit drainage system which has the advantages of draining rainwater in the side wall of a foundation pit and preventing the side wall of the foundation pit from collapsing.
The above object of the present invention is achieved by the following technical solutions:
a deep foundation pit drainage system comprises a foundation pit body, wherein drainage wells are arranged at four corners of the foundation pit body, a water pump for draining accumulated water in the drainage wells outside the foundation pit body is arranged in each drainage well, a supporting plate is arranged in the foundation pit body and abutted against the peripheral side wall of the foundation pit body, a plurality of drainage pipes are arranged on the supporting plate, the drainage pipes penetrate through the supporting plate and are fixedly connected to the supporting plate, the end parts, far away from the closed end, of the drainage pipes are closed ends, the end parts, far away from the closed ends, of the drainage pipes are open ends, a plurality of drainage holes are formed in the drainage pipes along the length direction of the drainage pipes, a plate body parallel to the supporting plate is further arranged in the foundation pit body, the plate body and the supporting plate are arranged at intervals, a fixing plate is arranged on the plate body and at, the backup pad is connected to on the fixed plate, the both ends and the drainage well intercommunication setting of fixed plate.
When the technical scheme is implemented, rainwater rises on the ground and permeates into the side wall of the foundation pit body when raining, the permeated water moves in the side wall of the foundation pit body to the position of the drain pipe and enters the drain pipe through the drain hole, the permeated water flows in the drain pipe to the open end of the drain pipe, flows between the plate body and the support plate through the drain pipe and is positioned on the fixed plate, flows into the drain well through two ends of the fixed plate, and is discharged out of the foundation pit body through a water pump in the drain well, so that the side wall of the foundation pit body is prevented from collapsing due to the fact that rainwater permeates and accumulates in the side wall of the foundation pit body; the setting of plate body and fixed plate can make the infiltration water move to between plate body and the backup pad through the drain pipe and be located the fixed plate for the fixed plate can collect the infiltration water and once discharge into in the drain well.
Furthermore, a slot for inserting the support plate is arranged on the fixing plate along the length direction of the fixing plate.
By implementing the technical scheme, the plate body and the supporting plate can be separated by the arrangement of the slot, the supporting plate and the plate body can be conveniently and respectively transported, and the lower part of the supporting plate is inserted into the slot, so that the slot can play a sealing effect on the space between the supporting plate and the fixing plate, rainwater collected on the fixing plate is prevented from flowing back to the side wall of the foundation pit body, and the using effects of the plate body and the fixing plate are improved; and when the plate body is not required to be used, the supporting plate and the plate body are separated, so that the supporting plate has a simple supporting effect on the side wall of the foundation pit body.
Furthermore, it is provided with the sponge strip to peg graft in the drain pipe, the one end of sponge strip extends to the drain pipe in the tip of foundation ditch body lateral wall, and the other end extends to between plate body and the backup pad and is located the drain pipe outside, the flagging butt of sponge strip tip outside the drain pipe is to the backup pad.
By implementing the technical scheme, the sponge strips have good water absorption, when the seepage water moves to the position of the drainage pipe in the side wall of the foundation pit body, the sponge strips can absorb the seepage water into the sponge strips, so that the seepage water collected in the drainage pipe is prevented from flowing out of the drainage hole into the side wall of the foundation pit body, and the drainage effect of the drainage pipe on the seepage water is indirectly improved; the end part of the sponge strip outside the drainage pipe is hung and abutted to the supporting plate, so that when more seepage water is absorbed in the sponge strip, the seepage water flows out of the sponge strip through the hung sponge strip and flows to the fixing plate, the phenomenon that the sponge strip cannot absorb water any more after absorbing more water is avoided, and the using effect of the sponge strip is improved; when the sponge strip is not needed to be used, the sponge strip is directly taken out of the drainage pipe, so that the drainage pipe can continuously drain the seepage water.
Furthermore, the plate body is connected with a push rod at the position where each sponge strip is located in a sliding mode, an extrusion plate is arranged at the end portion, between the plate body and the supporting plate, of the push rod, a pushing handle is arranged at the end portion, far away from the extrusion plate, of the push rod, and the extrusion plate and the part, outside the drainage pipe, of each sponge strip are arranged oppositely.
Implement above-mentioned technical scheme, after having collected more infiltration water in the sponge strip, the sponge strip can reduce the absorption effect to the infiltration water, after having collected a period of infiltration water in the sponge strip, it moves on the plate body to drive the push rod through promoting the promotion handle, make the push rod drive stripper plate move towards the sponge strip, extrude the infiltration water of collecting in the sponge strip to the fixed plate on, make the infiltration water of sponge strip absorption in the drain pipe move to the sponge strip in the flagging part outside the drain pipe, the drainage effect of sponge strip to the infiltration water has been improved, and the effect of absorbing the infiltration water of sponge strip has been improved indirectly.
Further, a spring is arranged between the plate body and the extrusion plate, the spring is positioned on the push rod, and two ends of the spring are respectively connected to the plate body and the extrusion plate.
Implement above-mentioned technical scheme, the setting up of spring can prevent when not using push rod and stripper plate, drives the stripper plate and removes on the plate body, when the infiltration water of the collection in the sponge strip is extruded to needs, makes push rod extension spring through promoting the push rod, drives the stripper plate extrusion sponge strip, loosens the push rod and makes the push rod resume to the normal position because of the elasticity of spring is automatic, prevents that the push rod from driving the stripper plate and removing on the plate body, has improved the result of use of push rod and stripper plate.
Furthermore, a sleeve is arranged on the plate body at the position of the push rod, and the push rod is connected in the sleeve in a sliding manner.
Implement above-mentioned technical scheme, telescopic setting can play the effect of direction to the push rod, prevents that the push rod from producing the slope on the plate body to prevent that stripper plate and sponge strip from producing the deviation in the part outside the drain pipe, indirectly improved the extrusion effect of stripper plate to the sponge strip.
Further, the backup pad includes a plurality of first splice plates that form of splicing each other, first cell body has all been seted up towards first splice plate at the edge all around of first splice plate in, first splice plate first cell body intercommunication all around sets up, and is adjacent first splice plate is provided with first breakwater in adjacent first cell body, and is adjacent first breakwater butt sets up each other, the drain pipe is in every evenly be provided with a plurality ofly on the first splice plate.
By implementing the technical scheme, the plurality of first splicing plates are convenient to transport the supporting plate, the practical application is met, the adjacent first splicing plates can be spliced together by the arrangement of the first groove body and the first water retaining strip, the splicing effect between the adjacent first splicing plates is improved, and the supporting plate is prevented from inclining when the supporting plate supports the side wall of the foundation pit body; and the arrangement of the first groove body and the first water retaining strip can play a good sealing effect between the adjacent first splicing plates, so that the seepage water is prevented from flowing back to the side wall of the foundation pit body between the adjacent first splicing plates, and the using effect of the supporting plate is improved.
Further, the plate body comprises a plurality of second splicing plates which are spliced with one another to form, second groove bodies are formed in the edges of the periphery of the second splicing plates towards the second splicing plates, the second groove bodies on the periphery of the second splicing plates are communicated and arranged, and the second splicing plates are adjacent to one another, second water retaining strips are arranged in the adjacent second groove bodies, the second water retaining strips are adjacent to one another and abut against one another, and the fixing plate is connected to the bottommost second splicing plate.
By implementing the technical scheme, the plurality of second splicing plates are convenient to transport, the plate accords with practical application, the adjacent second splicing plates can be spliced together by the arrangement of the second groove body and the second water blocking strip, the splicing effect between the adjacent second splicing plates is improved, and the plate is prevented from inclining; and the second groove body and the second water retaining strip can play a good sealing effect between the adjacent second splicing plates, so that the permeation water on the fixing plate is prevented from flowing between the adjacent second splicing plates to the foundation pit body, and the using effect of the plate body is improved.
Further, this external position at foundation ditch body lateral wall place of foundation ditch is provided with a plurality of water catch bowl, every the water catch bowl all sets up along the circumference intercommunication of foundation ditch body, and is a plurality of the water catch bowl is corresponding and is followed the length direction setting of drain pipe in vertical direction and drain pipe.
Implement above-mentioned technical scheme, the setting up of water catch bowl can play the effect of collecting to the rainwater around the foundation ditch body, when raining, the rainwater can flow to the water catch bowl in all around through the foundation ditch body, after the rainwater was collected to the water catch bowl in, the rainwater permeates to the foundation ditch body lateral wall in the water catch bowl, make the infiltration water be led to the position at drain pipe place, the position that prevents to keep away from the drain pipe contains the unable position that removes to the drain pipe place of a large amount of infiltration water, the result of use of foundation ditch body has been improved, the drainage effect of drain pipe to the infiltration water has been improved indirectly.
Further, the supporting plate and the plate body are both arranged to be polyethylene plates.
By implementing the technical scheme, the arrangement of the polyethylene plate can ensure that the plate body and the supporting plate do not absorb moisture and have good waterproof steam property, the polyethylene plate has good heat resistance and cold resistance, and has good use effect in winter and summer, and the polyethylene plate also has good rigidity and toughness and good supporting effect on the side wall of the foundation pit body; adopt the weight of polyethylene board lighter, conveniently install and transport plate body and backup pad.
In conclusion, the invention has the following beneficial effects:
the arrangement of the drainage pipe and the sponge strip can enable the seepage water in the side wall of the foundation pit body to flow between the plate body and the supporting plate through the drainage pipe, so that the seepage water is collected on the fixing plate and flows into the drainage well through the fixing plate, and the phenomenon that the side wall of the foundation pit body collapses due to more seepage water in the side wall of the foundation pit body is prevented;
the arrangement of the push rod and the extrusion plate can extrude the seepage water absorbed in the sponge strip, so that the collection effect of the sponge strip on the seepage water is improved;
the first groove body and the first water retaining strip can play a role in sealing adjacent first splicing plates, so that the seepage water is prevented from flowing into the side wall of the foundation pit body in a gap between the adjacent first splicing plates, and the collection effect of the support plate and the plate body on the seepage water is improved;
fourth, second cell body, second manger plate strip can play sealed effect to adjacent second splice plate, prevent that the infiltration water from flowing to the foundation ditch originally internally in the gap between the adjacent second splice plate, have further improved the collection effect of backup pad and plate body to the infiltration water.
Drawings
FIG. 1 is an overall schematic structural view of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an exploded view of the first splice plate, the second splice plate, the first water bar and the second water bar according to the embodiment of the present invention;
FIG. 4 is a schematic structural diagram illustrating a spring and an extrusion plate between a first splice plate and a second splice plate according to an embodiment of the present invention.
Reference numerals: 1. a foundation pit body; 11. a drainage well; 12. a water pump; 13. a water collection tank; 2. a support plate; 21. a drain pipe; 211. a drain hole; 22. a sponge strip; 23. a first splice plate; 24. a first tank body; 25. a first water bar; 3. a plate body; 31. a fixing plate; 32. a slot; 33. a push rod; 331. a pressing plate; 332. pushing the handle; 333. a spring; 334. a sleeve; 34. a second splice plate; 35. a second tank body; 36. and a second water retaining strip.
Detailed Description
The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings.
With reference to fig. 1 and 2, a deep foundation pit drainage system comprises a foundation pit body 1, drainage wells 11 are arranged at four corners of the foundation pit body 1, and a water pump 12 for draining accumulated water in the drainage wells 11 to the outside of the foundation pit body 1 is arranged in each drainage well 11.
Combine fig. 2 and fig. 3, be provided with in this body 1 of foundation ditch with the backup pad 2 of foundation ditch body lateral wall butt all around, backup pad 2 sets up to the polyethylene board, and backup pad 2 includes a plurality of first splice plates 23 that splice each other and form, and setting up of first splice plate 23 is convenient transports backup pad 2.
With reference to fig. 3 and 4, the first splicing plates 23 are all provided with first groove bodies 24 facing the first splicing plates 23 at the peripheral edges thereof, the first groove bodies 24 around the first splicing plates 23 are communicated, the adjacent first splicing plates 23 are provided with first water bars 25 in the adjacent first groove bodies 24, the adjacent first water bars 25 are abutted against each other, in this embodiment, the cross section of the first groove body 24 is set to be "U" -shaped, and the first water bars 25 are arranged in cooperation with the first groove bodies 24; when the adjacent first splicing plates 23 need to be installed together, the first splicing plates 23 are spliced together, the first water bar 25 is inserted into the first groove bodies 24 on the adjacent first splicing plates 23, so that the first water bar 25 plays a role in installing the adjacent first splicing plates 23, and the seepage water can be prevented from flowing into the foundation pit body 1 along the gap between the first splicing plates 23.
With reference to fig. 3 and 4, each first splicing plate 23 is fixedly connected with three drain pipes 21, the three drain pipes 21 are distributed on the first splicing plates 23 in a triangular shape, the end part of each drain pipe 21 in the side wall of the foundation pit body 1 is a closed end, the end part of each drain pipe 21 connected with the first splicing plate 23 is an open end, and a plurality of drain holes 211 are uniformly formed in each drain pipe 21 along the length direction of the drain pipe 21; when installing backup pad 2 to foundation ditch body 1 lateral wall on, peg graft drain pipe 21 to foundation ditch body 1 lateral wall in for the infiltration water that permeates to in the foundation ditch body 1 lateral wall is collected by drain pipe 21.
As shown in fig. 4, a sponge strip 22 is inserted into each drain pipe 21, one end of each sponge strip 22 extends to the end of the drain pipe 21 in the side wall of the foundation pit body 1, the other end extends out of the drain pipe 21, and the end of each sponge strip 22 outside the drain pipe 21 is drooping and abutted to the first splicing plate 23; the sponge strips 22 can further adsorb the seepage water around the drain pipe 21 into the sponge strips 22, so that the drainage effect of the drain pipe 21 on the seepage water is improved; and one end of the sponge strip 22 is drooped and abutted to the first splicing plate 23, so that the sponge strip 22 discharges the water adsorbed in the drain pipe 21 by the sponge strip 22.
With reference to fig. 2 and 3, a plate body 3 parallel to the support plate 2 is further arranged in the foundation pit body 1, the plate body 3 is a polyethylene plate, the plate body 3 includes a plurality of second splicing plates 34 spliced with each other, second groove bodies 35 are respectively arranged in the second splicing plates 34 and at the peripheral edges of the second splicing plates 34, the second groove bodies 35 around the second splicing plates 34 are communicated, second water retaining strips 36 are arranged in the adjacent second groove bodies 35 of the adjacent second splicing plates 34, and the adjacent second water retaining strips 36 are mutually abutted; in this embodiment, the cross section of the second groove body 35 is provided with a "U" shape, and the second water blocking strip 36 is provided in cooperation with the "U" shaped second groove body 35; when the adjacent second splicing plates 34 need to be installed together, the splicing plates are spliced together, and the second water retaining strip 36 is inserted into the second groove body 35 on the adjacent second splicing plates 34, so that the second water retaining strip 36 plays a role in installing the adjacent second splicing plates 34, and the permeation water can be prevented from flowing into the foundation pit body 1 along the gap between the second splicing plates 34.
With reference to fig. 3 and 4, a push rod 33 is slidably connected to the second splicing plate 34 at the position of each sponge strip 22, a squeezing plate 331 is disposed at an end portion of the push rod 33 between the plate body 3 and the support plate 2, the push rod 33 is perpendicular to the squeezing plate 331, a pushing handle 332 is disposed at an end portion of the push rod 33 away from the squeezing plate 331, and the squeezing plate 331 is disposed opposite to a portion of the sponge strip 22 outside the drain pipe 21; when more infiltration water has been collected in the sponge strip 22, make push rod 33 drive the water of collecting in the sponge strip 22 and extrude by push rod 33 through manual mode manual promotion push rod 33, make things convenient for sponge strip 22 to continue to collect the infiltration water.
With reference to fig. 3 and 4, in order to make the pushing rod 33 drive the squeezing plate 331 to automatically restore the original position after the squeezing plate 331 foundations the permeated water in the sponge strip 22 and prevent the pushing rod 33 from moving on the second splicing plate 34 when the pushing rod 33 is not used, a spring 333 is arranged between the plate body 3 and the squeezing plate 331, the spring 333 is positioned on the pushing rod 33, two ends of the spring 333 are respectively connected to the plate body 3 and the squeezing plate 331, the spring 333 is arranged on the pushing rod 33, and the spring 333 is prevented from tilting; in order to prevent the position deviation between the extrusion plate 331 and the sponge strip 22 driven by the push rod 33, a sleeve 334 is arranged on the second splicing plate 34 at the position of the push rod 33, the sleeve 334 is fixedly connected with the second splicing plate 34, and the push rod 33 is slidably connected in the sleeve 334.
Referring to fig. 2 and 3, the plate body 3 and the supporting plate 2 are arranged in parallel at intervals, the second splicing plate 34 at the bottommost part is provided with a fixing plate 31, the fixing plate 31 is perpendicular to the second splicing plate 34, the fixing plate 31 is provided with a slot 32 along the length direction of the fixing plate 31, the cross section of the slot 32 is in a U shape, the first splicing plate 23 at the lowest part of the supporting plate 2 is inserted into the slot 32 and is matched with the U-shaped slot 32, and two ends of the fixing plate 31 are communicated with the drainage wells 11; when the drain pipe 21 and the sponge bar 22 collect much permeate, the permeate flows onto the fixing plate 31 through the sponge bar 22 and the drain pipe 21, flows into the drain well 11 along the length direction of the fixing plate 31, and is discharged into the municipal pipeline through the water pump 12.
With reference to fig. 2 and 3, in order to enable the seepage water on the side wall of the foundation pit body 1 far away from the drain pipe 21 to flow to the position of the drain pipe 21, three water collecting grooves 13 are arranged at the position of the side wall of the foundation pit body 1 outside the foundation pit body 1, the cross section of each water collecting groove 13 is in a U-shaped arrangement, each water collecting groove 13 is communicated and arranged along the circumferential direction of the foundation pit body 1, and the three water collecting grooves 13 correspond to the drain pipe 21 in the vertical direction and are arranged along the length direction of the drain pipe 21; when raining, water catch bowl 13 can flow the outer rainwater of foundation ditch body 1 to water catch bowl 13 in, prevents that the rainwater from being located the position of keeping away from drain pipe 21 and permeating to foundation ditch body 1 in, and the infiltration water of collecting in the water catch bowl 13 is led to the position at drain pipe 21 place through water catch bowl 13 infiltration for drain pipe 21 has improved the collection effect to the outer rainwater of foundation ditch body 1.
The specific using process is as follows: firstly, splicing the second splicing plates 34 together through the second groove body 35 and the second water retaining strip 36, splicing the first splicing plates 23 through the first groove body 24 and the first water retaining strip 25, splicing the support plate 2 into the slot 32 on the fixed plate 31, punching holes on the side wall of the foundation pit body 1 in advance, inserting the drain pipe 21 on the first splicing plates 23 into the side wall of the foundation pit body 1, when raining, rainwater flows to the water collecting tank 13 on the ground, permeates to the position where the drain pipe 21 is located through the bottom wall of the water collecting tank 13, is sucked into the drain pipe 21 through the sponge strips 22 in the drain pipe 21, flows to the fixed plate 31 through the drooping end parts of the sponge strips 22, flows to the drain well 11 through the fixed plate 31, so that the water pump 12 discharges collected seepage water, when the larger sponge strips 22 absorb more seepage water, the squeezing plate 331 is driven to squeeze the sponge strips 22 through the manual push rod 33, the permeable water in the sponge strip 22 is grounded on the fixing plate 31, so that the permeable water on the sponge strip 22 in the drainage pipe 21 can move to the end part outside the sponge strip 22, the water absorption effect of the sponge strip 22 is improved, in other embodiments, the push rod 33 can be indirectly and automatically driven to move through the air cylinder, and the labor can be saved; the seepage water in the side wall of the foundation pit body 1 is discharged through the drainage pipe 21 and the sponge bars 22, and the side wall of the foundation pit body 1 is prevented from bearing pressure to collapse.
Claims (8)
1. A deep foundation pit drainage system comprises a foundation pit body (1), wherein drainage wells (11) are arranged at four corners of the foundation pit body (1), a water pump (12) used for discharging accumulated water in the drainage wells (11) to the outside of the foundation pit body (1) is arranged in each drainage well (11), the deep foundation pit drainage system is characterized in that a supporting plate (2) abutted against the peripheral side wall of the foundation pit body (1) is arranged in the foundation pit body (1), a plurality of drainage pipes (21) are arranged on the supporting plate (2), the drainage pipes (21) penetrate through the supporting plate (2) and are fixedly connected to the supporting plate (2), the end parts of the drainage pipes (21) in the side wall of the foundation pit body (1) are arranged to be closed ends, the end parts of the drainage pipes (21) far away from the closed ends are open ends, and a plurality of drainage holes (211) are formed in the drainage pipes, the foundation pit supporting structure is characterized in that plate bodies (3) parallel to the supporting plate (2) are further arranged in the foundation pit body (1), the plate bodies (3) and the supporting plate (2) are arranged at intervals, a fixing plate (31) is arranged on the plate bodies (3) and at the position where the plate bodies (3) are in contact with the bottom wall of the foundation pit body (1), the fixing plate (31) is perpendicular to the plate bodies (3), the supporting plate (2) is connected to the fixing plate (31), and two ends of the fixing plate (31) are communicated with the drainage well (11);
a sponge strip (22) is inserted into the drain pipe (21), one end of the sponge strip (22) extends to the end part of the drain pipe (21) in the side wall of the foundation pit body (1), the other end of the sponge strip extends to the position between the plate body (3) and the support plate (2) and is positioned outside the drain pipe (21), and the end part of the sponge strip (22) outside the drain pipe (21) is drooped and abutted to the support plate (2);
the utility model discloses a water drainage pipe, including plate body (3), the equal sliding connection in the position at every sponge strip (22) place has push rod (33) on plate body (3), push rod (33) are provided with stripper plate (331) in the tip between plate body (3) and backup pad (2), the tip that stripper plate (331) were kept away from in push rod (33) is provided with and promotes handle (332), stripper plate (331) and sponge strip (22) set up relatively in the part outside drain pipe (21).
2. The deep foundation pit drainage system according to claim 1, wherein the fixing plate (31) is provided with a slot (32) along the length direction of the fixing plate (31) for inserting the support plate (2).
3. The deep foundation pit drainage system according to claim 1, wherein a spring (333) is arranged between the plate body (3) and the extrusion plate (331), the spring (333) is positioned on the push rod (33) and two ends of the spring (333) are respectively connected to the plate body (3) and the extrusion plate (331).
4. A deep foundation pit drainage system according to claim 3, wherein a sleeve (334) is arranged on the plate body (3) at the position of the push rod (33), and the push rod (33) is slidably connected in the sleeve (334).
5. The deep foundation pit drainage system according to claim 1, wherein the support plate (2) comprises a plurality of first splicing plates (23) which are spliced with each other, first grooves (24) are formed in the peripheral edges of the first splicing plates (23) towards the first splicing plates (23), the first grooves (24) on the periphery of the first splicing plates (23) are communicated, first water retaining strips (25) are arranged in the adjacent first grooves (24) of the adjacent first splicing plates (23), the adjacent first water retaining strips (25) are abutted against each other, and a plurality of drainage pipes (21) are uniformly arranged on each first splicing plate (23).
6. The deep foundation pit drainage system according to claim 1, wherein the plate body (3) comprises a plurality of second splicing plates (34) spliced with each other, second grooves (35) are formed in the peripheral edges of the second splicing plates (34) towards the second splicing plates (34), the second grooves (35) on the periphery of the second splicing plates (34) are communicated, second water retaining strips (36) are arranged in the adjacent second grooves (35) of the adjacent second splicing plates (34), the adjacent second water retaining strips (36) are abutted with each other, and the fixing plate (31) is connected to the bottommost second splicing plate (34).
7. The deep foundation pit drainage system according to claim 1, wherein a plurality of water collecting grooves (13) are formed in positions, outside the foundation pit body (1), of the side wall of the foundation pit body (1), each water collecting groove (13) is communicated with the corresponding circumferential direction of the foundation pit body (1), and the plurality of water collecting grooves (13) correspond to the drainage pipe (21) in the vertical direction and are formed in the length direction of the drainage pipe (21).
8. Deep foundation pit drainage system according to claim 1, characterized in that the support plate (2) and the plate body (3) are both provided as polyethylene plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811064103.9A CN108978692B (en) | 2018-09-12 | 2018-09-12 | Deep foundation pit drainage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811064103.9A CN108978692B (en) | 2018-09-12 | 2018-09-12 | Deep foundation pit drainage system |
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| Publication Number | Publication Date |
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| CN108978692A CN108978692A (en) | 2018-12-11 |
| CN108978692B true CN108978692B (en) | 2020-12-04 |
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| CN201811064103.9A Active CN108978692B (en) | 2018-09-12 | 2018-09-12 | Deep foundation pit drainage system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093931B (en) * | 2019-04-28 | 2020-11-06 | 四川航天建筑工程有限公司 | Civil construction foundation pit drainage structure and construction method thereof |
| CN111733845A (en) * | 2020-05-29 | 2020-10-02 | 谢宜傧 | Device and method for preventing waterlogging based on deep foundation pit drainage |
| CN112814000B (en) * | 2020-12-30 | 2022-05-17 | 北京观唐城投建设有限公司 | Foundation pit dewatering and drainage structure and construction method thereof |
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