CN114991188A

CN114991188A - Deep foundation pit drainage structure

Info

Publication number: CN114991188A
Application number: CN202210432451.7A
Authority: CN
Inventors: 荣怀松; 彭林林; 张峰; 梁广远; 刘宗宝
Original assignee: China MCC5 Group Corp Ltd
Current assignee: China MCC5 Group Corp Ltd
Priority date: 2022-04-23
Filing date: 2022-04-23
Publication date: 2022-09-02
Anticipated expiration: 2042-04-23
Also published as: CN114991188B

Abstract

The utility model provides a deep basal pit drainage structures, includes foundation ditch, water delivery mechanism, and the bottom of foundation ditch is provided with drainage well (1), its characterized in that: the bottom of drainage shaft (1) is provided with the mud collection groove, and the upside in mud collection groove is connected with rose box (3) through pillar (2), water delivery mechanism includes defeated mud pipe (14), and the bottom of defeated mud pipe (14) extends to the inside bottom side of mud collection well (6). The deep foundation pit drainage structure has the advantages that the soil falling in a foundation pit falls into the drainage well, the support plate supports the soil to prevent the soil from falling to the bottom side of the interior of the drainage well, the electric cylinder pushes the push plate to move upwards, the push plate pushes the support plate to rotate upwards, the push block pushes the water baffle to rotate, the soil on the support plate flows into the interior of the mud collection well from the lower part of the water baffle through the washing of the water falling on the support plate, the accumulation of the soil on the support plate is avoided, the blockage of a water through hole is avoided, and the collapse of the foundation pit caused by a large amount of accumulated water is avoided.

Description

Deep foundation pit drainage structure

Technical Field

The invention relates to the technical field of foundation pit drainage, in particular to a deep foundation pit drainage structure.

Background

Generally, a multi-layer basement is arranged to be beneficial to the stability of a building, but the foundation burial depth is large, the foundation pit is excavated deeply, particularly, when a deep foundation pit is excavated in an area with a high underground water level, a soil water-bearing layer is cut off, underground water can continuously infiltrate into the foundation pit to cause quicksand and slope instability or reduce the bearing capacity of the foundation, and a drainage structure is generally arranged in the foundation pit during the construction of the existing foundation pit.

Chinese patent CN201721459487.5 discloses a deep basal pit drainage structures, including the deep basal pit, drainage shaft and with the communicating underdrain of drainage shaft, drainage shaft sets up in the deep basal pit bottom surface, the underdrain is the slope setting, drainage shaft's lateral wall is equipped with the underdrain pipe that is located the underdrain below, it is when using, when the small area collapses, earth falls to the well lid, the water inlet with on the well lid blocks up easily, the inside rivers to the drainage shaft of foundation pit inside of being not convenient for, lead to most of water to pile up at the upside of well lid, lead to the foundation ditch large tracts of land to collapse easily for a long time.

The known deep foundation pit drainage methods therefore suffer from the various inconveniences and problems described above.

Disclosure of Invention

The invention aims to provide a safe and reliable deep foundation pit drainage structure.

In order to achieve the purpose, the technical solution of the invention is as follows:

a deep foundation pit drainage structure comprises a foundation pit, wherein a drainage well is arranged at the bottom end of the foundation pit, a sludge collecting groove is arranged at the bottom end of the drainage well, the upper side of the sludge collecting groove is connected with a filter box through a support column, a water pump and a sludge suction pump are arranged in the filter box, the input end of the sludge suction pump extends to the bottom side of the inner part of the sludge collecting groove, a sludge collecting well is arranged at the right side of the foundation pit, a sludge conveying mechanism is arranged in the sludge collecting well, the sludge collecting well is communicated with the inner part of the drainage well through a sludge guide groove, the right end of the drainage well is positioned at the lower side of the sludge guide groove and is rotatably connected with a supporting plate, a plurality of water through holes are arranged on the supporting plate, the left end of the drainage well is positioned below the supporting plate and is fixedly connected with a sealing box, an electric cylinder is fixedly connected in the sealing box, a telescopic rod of the electric cylinder extends to the upper side of the sealing box and is fixedly connected with a push plate, the top end of the push plate is contacted with the bottom end of the supporting plate, a water baffle is rotatably connected with the left side of the top end of the sludge guide groove, the right end of the water baffle is connected with the top end of the mud guide groove through a compression spring, and the right side of the top end of the supporting plate is fixedly connected with a push block.

Preferably, water conveying mechanism includes defeated mud pipe, and the bottom of defeated mud pipe extends to the inside bottom side of mud collection well, and the motor is installed on the top of defeated mud pipe, and the output of motor extends to defeated mud pipe's inside and the defeated mud axle of fixedly connected with, and the outside fixedly connected with helical blade of defeated mud axle, and the right-hand member upside of defeated mud pipe is connected with out the mud pipe, and the below that the right side of foundation ditch is located out the mud pipe is provided with the mud collection hole.

Furthermore, the left side of foundation ditch is provided with the escape canal, and the output of water pump is connected with the raceway, and the top of raceway extends to the upside in escape canal.

Still further, the output end of the dredge pump is connected with a dredge pipe, and the top end of the dredge pipe extends into the mud collecting well.

Further scheme, the outside cover of rose box is equipped with the frame, a plurality of scrapers of the even fixedly connected with in inside of frame, the side of a plurality of scrapers and the lateral wall contact of rose box, the top fixedly connected with connecting rod of frame, the side fixed connection of connecting plate and push pedal is passed through on the top of connecting rod.

On the basis of the scheme, a mudguard is fixedly connected to the left side of the top end of the supporting plate.

After the technical scheme is adopted, the deep foundation pit drainage structure has the following advantages:

1. the drainage structure is scientific and reasonable in arrangement, and the drainage effect is obvious;

2. the engineering quality is safe and reliable, and the push plate and the push block are pushed by the supporting plate and the electric cylinder to push the water baffle to rotate, so that the soil is prevented from being accumulated on the supporting plate;

3. the inside rivers of foundation ditch to the inside bottom side of drainage shaft of being convenient for avoid a large amount of ponding to lead to the foundation ditch to collapse.

Drawings

FIG. 1 is a schematic view of a deep foundation pit drainage structure according to an embodiment of the invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

fig. 4 is a partially enlarged structural view of the invention at C in fig. 1.

In the figure: 1. a drainage well; 2. a pillar; 3. a filter box; 4. a water pump; 5. a dredge pump; 6. a mud collecting well; 7. a pallet; 8. a sealing box; 9. an electric cylinder; 10. pushing a plate; 11. a water baffle; 12. a compression spring; 13. a push block; 14. a mud conveying pipe; 15. a motor; 16. a mud conveying shaft; 17. a helical blade; 18. a mud outlet pipe; 19. a mud collecting pit; 20. a drainage ditch; 21. a water delivery pipe; 22. a mud pipe; 23. an outer frame; 24. a squeegee; 25. a connecting rod; 26. a connecting plate; 27. a fender is provided.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

Example 1

Referring to fig. 1-4, the deep foundation pit drainage structure of the invention comprises a foundation pit, a drainage well 1 is arranged at the bottom end of the foundation pit, a mud collecting tank is arranged at the bottom end of the drainage well 1, a filter box 3 is connected to the upper side of the mud collecting tank through a support column 2, silt is prevented from entering the interior of the water pump 4 through the filter box 3, a water pump 4 and a suction pump 5 are installed inside the filter box 3, a drainage ditch 20 is arranged at the left side of the foundation pit, a water pipe 21 is connected to the output end of the water pump 4, the top end of the water pipe 21 extends to the upper side of the drainage ditch 20, water in the drainage well 1 is discharged to the interior of the drainage ditch 20 through the water pump 4, water is discharged to the exterior of the foundation pit through the drainage ditch 20, a mud pipe 22 is connected to the output end of the suction pump 5, the top end of the mud pipe 22 extends to the interior of the mud collecting well 6, the suction pump 5 pumps mud in the interior of the mud collecting tank to prevent a large amount of silt from accumulating at the bottom side of the interior of the drainage well 1, the input end of a mud suction pump 5 extends to the bottom side of the inner part of a mud collecting groove, the right side of a foundation pit is provided with a mud collecting well 6, the inner part of the mud collecting well 6 is provided with a mud conveying mechanism, the mud collecting well 6 is communicated with the inner part of a drainage well 1 through a mud guide groove, the right end of the drainage well 1 is positioned at the lower side of the mud guide groove and is rotatably connected with a supporting plate 7, the left end of the supporting plate 7 is lower than the right end of the supporting plate 7 in height so as to avoid water flowing into the inner part of the mud guide groove, the left side of the top end of the supporting plate 7 is fixedly connected with a mud guard 27 so as to avoid mud on the supporting plate 7 from flowing to a joint between the left end of the supporting plate 7 and the side wall of the drainage well 1, the supporting plate 7 is provided with a plurality of water through holes, water on the supporting plate 7 flows to the inner part of the drainage well 1 through the water through holes, the left end of the drainage well 1 is positioned below the supporting plate 7 and is fixedly connected with a sealing box 8, the inner part of the sealing box 8 is fixedly connected with an electric cylinder 9, the telescopic rod of the electric cylinder 9 is in sealing sliding fit with the sealing box 8 in a sealing way, prevent water from entering the inside of the electric cylinder 9 through the seal box 8, the telescopic rod of the electric cylinder 9 extends to the upper side of the seal box 8 and is fixedly connected with a push plate 10, the support plate 7 rotates downwards under the action of gravity, the support plate 7 is supported by the push plate 10, the top end of the push plate 10 is contacted with the bottom end of the support plate 7, the left side of the top end of the mud guide groove is rotatably connected with a water baffle plate 11, water is prevented from entering the inside of the mud guide groove through the water baffle plate 11, the right end of the water baffle plate 11 is connected with the top end of the mud guide groove through a compression spring 12, the right side of the top end of the support plate 7 is fixedly connected with a push block 13, soil falling in a foundation pit falls to the inside of the drainage well 1, the soil is supported by the support plate 7 to prevent the soil from falling to the bottom side of the inside of the drainage well 1, the push plate 10 is pushed to move upwards through the electric cylinder 9, the push plate 10 pushes the support plate 7 to rotate upwards, the water baffle plate 11 is pushed to rotate through the push block 13, the earth on the layer board 7 makes earth flow to the inside of mud collecting well 6 from the below of breakwater 11 through falling to the washing away of the water on the layer board 7, avoids earth to pile up on layer board 7, avoids the limbers to block up, and the inside rivers of the foundation ditch of being convenient for are to the inside bottom side of drainage well 1, avoid a large amount of ponding to lead to the foundation ditch to collapse.

It should be further noted that the water delivery mechanism includes a mud conveying pipe 14, the bottom end of the mud conveying pipe 14 extends to the bottom side of the inside of the mud collecting well 6, a motor 15 is installed at the top end of the mud conveying pipe 14, the output end of the motor 15 extends to the inside of the mud conveying pipe 14 and is fixedly connected with a mud conveying shaft 16, a helical blade 17 is fixedly connected to the outside of the mud conveying shaft 16, a mud discharging pipe 18 is connected to the upper side of the right end of the mud conveying pipe 14, a mud collecting pit 19 is arranged below the mud discharging pipe 18 on the right side of the foundation pit, the mud conveying shaft 16 and the helical blade 17 are driven to rotate by the motor 15, the helical blade 17 rotates to convey the mud inside of the mud collecting well 6 to the upper side of the conveying pipe and flows to the inside of the mud collecting pit 19 through the mud discharging pipe 18, so that people can clean the mud in time, an outer frame 23 is sleeved outside of the filter box 3, a plurality of scraping plates 24 are uniformly and fixedly connected to the inside of the outer frame 23, the side ends of the scraping plates 24 are in contact with the outer side wall of the filter box 3, frame 23's top fixedly connected with connecting rod 25, connecting plate 26 and push pedal 10's side fixed connection is passed through on connecting rod 25's top, electronic jar 9 drives the in-process that push pedal 10 reciprocated, push pedal 10 drives connecting plate 26, connecting rod 25, frame 23 and a plurality of scraper blade 24 reciprocate, scrape through a plurality of scraper blade 24 the lateral wall of rose box 3 and wipe off, avoid earth to block up rose box 3, the rivers of being convenient for are to the inside of rose box 3, guarantee the efficiency of drawing water of water pump 4.

To sum up, in the deep foundation pit drainage structure, when in use, water in the foundation pit flows to the inside of the drainage well 1 through the water through hole of the supporting plate 7, the water in the drainage well 1 is drained to the inside of the drainage ditch 20 through the water pump 4, the water is drained to the outside of the foundation pit through the drainage ditch 20, the mud pump 5 pumps the mud in the mud collecting groove to the inside of the mud collecting well 6, the mud falling in the foundation pit falls to the inside of the drainage well 1, the mud is supported by the supporting plate 7 to avoid the mud from falling to the bottom side of the inside of the drainage well 1, the push plate 10 is pushed to move upwards through the electric cylinder 9, the supporting plate 7 is pushed to rotate upwards by the push plate 10, the water baffle 11 is pushed to rotate through the push block 13, the mud on the supporting plate 7 flows to the inside of the mud collecting well 6 from the lower part of the water baffle 11 through the scouring of the water falling on the supporting plate 7, the mud conveying shaft 16 and the helical blade 17 are driven to rotate through the motor 15, the helical blade 17 rotates to convey the mud in the inside of the mud collecting well 6 to the upper side of the conveying pipe, and flows to the inside of the mud collection pit 19 through the mud discharge pipe 18.

The deep foundation pit drainage structure has the advantages that soil falling in a foundation pit falls into the drainage well, the support plate supports the soil to prevent the soil from falling to the bottom side of the inside of the drainage well, the electric cylinder pushes the push plate to move upwards, the push plate pushes the support plate to rotate upwards, the push block pushes the water baffle to rotate, the soil on the support plate flows into the mud collection well from the lower side of the water baffle through the scouring of water falling on the support plate, the soil is prevented from being accumulated on the support plate, the water through hole is prevented from being blocked, water in the foundation pit can flow to the bottom side of the inside of the drainage well conveniently, and the foundation pit collapse caused by a large amount of accumulated water is avoided.

The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.

Claims

1. The utility model provides a deep basal pit drainage structures, includes foundation ditch, water delivery mechanism, and the bottom of foundation ditch is provided with drainage well (1), its characterized in that:

the bottom end of the drainage well (1) is provided with a sludge collection groove, the upper side of the sludge collection groove is connected with a filter box (3) through a support column (2), a water pump (4) and a sludge suction pump (5) are installed inside the filter box (3), the input end of the sludge suction pump (5) extends to the bottom side inside the sludge collection groove, the right side of the foundation pit is provided with a sludge collection well (6), a sludge conveying mechanism is arranged inside the sludge collection well (6), the sludge collection well (6) is communicated with the drainage well (1) through a sludge guide groove, the right end of the drainage well (1) is positioned at the lower side of the sludge guide groove and is rotatably connected with a supporting plate (7), a plurality of water through holes are formed in the supporting plate (7), the left end of the drainage well (1) is positioned below the supporting plate (7) and is fixedly connected with a sealing box (8), the inside of the sealing box (8) is fixedly connected with an electric cylinder (9), the telescopic rod of the electric cylinder (9) extends to the upper side of the sealing box (8) and is fixedly connected with a push plate (10), the top end of the push plate (10) is contacted with the bottom end of the supporting plate (7), the left side of the top end of the mud guide groove is rotatably connected with a water baffle plate (11), the right end of the water baffle plate (11) is connected with the top end of the mud guide groove through a compression spring (12), and the right side of the top end of the supporting plate (7) is fixedly connected with a push block (13);

water delivery mechanism includes defeated mud pipe (14), and the bottom of defeated mud pipe (14) extends to the inside bottom side of mud collection well (6), and motor (15) are installed on the top of defeated mud pipe (14), and the output of motor (15) extends to inside and fixedly connected with defeated mud axle (16) of defeated mud pipe (14), and the outside fixedly connected with helical blade (17) of defeated mud axle (16), and the right-hand member upside of defeated mud pipe (14) is connected with out mud pipe (18), and the right side of foundation ditch is located the below of mud pipe (18) and is provided with collection pit (19).

2. The deep foundation pit drainage structure according to claim 1, wherein a drainage ditch (20) is arranged at one side of the foundation pit, a water pipe (21) is connected to the output end of the water pump (4), and the top end of the water pipe (21) extends to the upper side of the drainage ditch (20).

3. The deep foundation pit drainage structure according to claim 1, wherein the output end of the dredge pump (5) is connected with a dredge pipe (22), and the top end of the dredge pipe (22) extends to the interior of the mud collecting well (6).

4. The deep foundation pit drainage structure according to claim 1, wherein an outer frame (23) is sleeved on the outer portion of the filter box (3), a plurality of scrapers (24) are uniformly and fixedly connected to the inner portion of the outer frame (23), the side ends of the scrapers (24) are in contact with the outer side wall of the filter box (3), a connecting rod (25) is fixedly connected to the top end of the outer frame (23), and the top end of the connecting rod (25) is fixedly connected with the side end of the push plate (10) through a connecting plate (26).

5. The deep foundation pit drainage structure according to claim 1, wherein a mudguard (27) is fixedly connected to the left side of the top end of the supporting plate (7).