CN113152500B - Lake-facing deep foundation pit dewatering device and construction method thereof - Google Patents
Lake-facing deep foundation pit dewatering device and construction method thereof Download PDFInfo
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- CN113152500B CN113152500B CN202110000984.3A CN202110000984A CN113152500B CN 113152500 B CN113152500 B CN 113152500B CN 202110000984 A CN202110000984 A CN 202110000984A CN 113152500 B CN113152500 B CN 113152500B
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 239000011152 fibreglass Substances 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000001556 precipitation Methods 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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Abstract
The invention discloses a lake-facing deep foundation pit dewatering device which comprises a dewatering system, a drainage system, a collection system and a secondary utilization system, wherein the dewatering system comprises a plurality of dewatering wells, a submersible pump and drainage hoses, the drainage system comprises a buried communication pipe bank, a vertical pipe is arranged on the communication pipe bank, a plurality of fixtures are arranged on the vertical pipe, the drainage hoses are respectively communicated with the top end of the vertical pipe through the fixtures, a discharge pipe is communicated with the communication pipe bank, the collection system comprises a glass fiber reinforced plastic water tank, a water inlet pipe and a water outlet pipe, and the secondary utilization system comprises a filtering and purifying device and a pressurizing device. The groove is dug beside the foundation pit, the communication exhaust pipes are buried in the groove, the plurality of vertical pipes are arranged on the communication exhaust pipes, the drainage hose in the dewatering well is correspondingly connected to the vertical pipes beside the groove, on one hand, secondary utilization of dewatering can be carried out, on the other hand, only the vertical pipes are spaced on the ground surface, the site construction vehicle can run between the vertical pipes, and the problem that the drainage hose is directly communicated into the lake to influence the running of the site construction vehicle is solved.
Description
Technical Field
The invention belongs to the field of foundation pit dewatering construction, and particularly relates to a lake-facing deep foundation pit dewatering device and a construction method thereof.
Background
The foundation pit dewatering refers to dewatering work performed for ensuring that the foundation pit can be constructed under a dry condition and preventing slope instability, foundation quicksand, pit bottom uplift, pit bottom piping and foundation bearing capacity reduction when the underground water level is higher than the excavation bottom surface when the foundation pit is excavated.
With the increase of economic development and social requirements in China, the number of lake-facing deep foundation pit projects is gradually increased, the deep foundation pit projects are closely connected with the hydraulic power of lakes, the underground water is extremely abundant, the seepage field is extremely complex, great difficulty is brought to precipitation and drainage of deep foundation pits, and smooth promotion of the projects is severely restricted.
At this stage, the seepage of underground water into the foundation pit is usually blocked by a waterproof curtain, but the water level of the underground water in the foundation pit is still controlled by the pipe well precipitation. At present, a submersible pump is usually adopted for connecting a hose for lowering and draining water in a deep foundation pit near a lake, and the water in a pipe well is directly drained into the lake for lowering and draining. The method needs to lay the hose at the periphery of the foundation pit, seriously influences the vehicle running in a construction site, has low safety and reliability, is easy to cause water treatment accidents, and sometimes causes the groove soaking phenomenon of the foundation pit.
Disclosure of Invention
The invention provides a lake facing deep foundation pit dewatering device and a construction method thereof, which are used for solving the technical problems that the conventional lake facing deep foundation pit dewatering and drainage are generally realized by adopting a submersible pump to connect a hose, the hose is laid on the periphery of a foundation pit, the driving of a vehicle in a construction site is seriously influenced, the safety and the reliability are low, water treatment accidents are easy to occur, and the foundation pit is soaked.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a face lake deep basal pit dewatering device, includes dewatering system, drainage system, collecting system and reutilization system, dewatering system includes a plurality of dewatering wells, sets up the immersible pump of bottom in dewatering well respectively, the drainage hose of being connected with the immersible pump, drainage system is including burying the intercommunication calandria of earth's surface below, be provided with a plurality of standpipes that stretch out the earth's surface on the intercommunication calandria, be provided with a plurality of fixers on the standpipe, the terminal ripple section that has the screw thread form of drainage hose, and is a plurality of the drainage hose communicates on the standpipe top through the fixer respectively, the intercommunication has the discharge pipe on the intercommunication calandria, collecting system is glass steel water tank, sets up inlet tube, outlet pipe on glass steel water tank, and the discharge pipe is not less than the inlet tube, and the inlet tube is higher than the outlet pipe, reutilization system includes filter purification device and pressure device, and the outlet pipe is connected with filter purification device, and every top sets up three fixer, the fixer is including fixing the cyclic annular shell on the standpipe, threaded connection has the locking bolt from outside to the interior, the one end that locking bolt is located cyclic annular shell inboard rotates and is connected with the rubber block.
Through adopting above-mentioned technical scheme, to facing lake foundation pit precipitation, the precipitation volume is great, compare in present directly leading to the lake with the drainage hose, open the slot in the other 2m department of foundation ditch, bury the intercommunication calandria underground in the slot, set up a plurality of standpipes on the intercommunication calandria, correspond the drainage hose in the precipitation well and connect on the standpipe on the next door, on the one hand can carry out reutilization to precipitation, on the other hand, only there is the spaced standpipe on the earth's surface, the site operation vehicle can be followed and is gone between the standpipe, it directly communicates the lake in and influence the site operation vehicle and go to have solved the drainage hose, in addition fail safe nature is high, the difficult accident that takes place water treatment, foundation pit bubble groove has been avoided.
Preferably, the communicating pipe is U-shaped and has two sealed ends, and the discharge pipe is communicated with one of the corners and extends in a direction away from the communicating pipe.
Through adopting above-mentioned technical scheme, the intercommunication calandria is rational in infrastructure, and drainage effect is good.
Preferably, the top end of the vertical pipe is in a flaring shape.
Through adopting above-mentioned technical scheme, be convenient for make drainage hose and standpipe communicate.
Preferably, the communication calandria is arranged below 50cm of the ground surface.
By adopting the technical scheme, the distance is reasonable, and the damage of a vehicle running in site construction to the communicated exhaust pipes can be avoided.
Preferably, the vertical pipes are 50cm above the ground surface, and the intervals between the vertical pipes are 15m.
Through adopting above-mentioned technical scheme, the drainage hose is conveniently connected and easily see on standpipe top and avoid the vehicle to destroy the standpipe, and the interval of standpipe can conveniently travel the vehicle process.
Preferably, the communicating calandria and the standpipe are both steel pipes.
Through adopting above-mentioned technical scheme, the structural strength of intercommunication calandria and standpipe is higher, and the structural stability of whole set of system is better.
Preferably, the glass fiber reinforced plastic water tank is further provided with an overflow pipe and a blow-off pipe in a communicated manner, the overflow pipe is as high as the water inlet pipe, and the blow-off pipe is located at the bottom end of the glass fiber reinforced plastic water tank.
By adopting the technical scheme, the water drainage system drains water into the glass fiber reinforced plastic water tank through the water inlet pipe, and the water outlet pipe is used for connecting the water resource secondary utilization system; the overflow pipe is used for discharging redundant liquid when the liquid level in the water tank exceeds the highest allowable liquid level; the blow-off pipe is used for discharging impurities precipitated in the water tank.
Preferably, a tensioning support rod is further arranged in the glass fiber reinforced plastic water tank, a tank door is arranged at the top end of the glass fiber reinforced plastic water tank, and an escalator located on one side of the tank door is further fixedly arranged on the outer side of the glass fiber reinforced plastic water tank.
By adopting the technical scheme, if the water quality is poor, or if sludge or sediment exists at the bottom of the box, the glass fiber reinforced plastic water tank can be conveniently checked by people to know the conditions.
A construction method of a lake-facing deep foundation pit dewatering device comprises the following steps,
after the construction of a water intercepting curtain spraying and stirring pile of a foundation pit is finished, constructing a dewatering well and an observation well, wherein a submersible pump and a drainage hose are arranged in the dewatering well; meanwhile, a groove with the depth of 70cm is dug at a position 2m away from the outside of the foundation pit, a communicating exhaust pipe is buried in the groove, and the height difference between the communicating exhaust pipe and the ground surface is not less than 50cm;
welding and communicating vertical pipes, arranging at intervals of 15m, welding bell mouths at the top ends, wherein the vertical pipes are 50cm higher than the ground surface, and three fixing devices are arranged at each bell mouth;
thirdly, manufacturing a glass fiber reinforced plastic water tank, and connecting a discharge pipe with a water inlet pipe of the glass fiber reinforced plastic water tank; the water outlet pipe of the glass fiber reinforced plastic water tank is connected with the filtering and purifying device and the pressurizing device for secondary utilization, and the secondary utilization is used for flushing a worker living toilet, using water for washing the worker living bath and supplying the water to a sprinkler of a construction site for watering and dust reduction.
Through adopting above-mentioned technical scheme, to facing lake foundation pit precipitation, the precipitation volume is great, compare in present directly leading to the lake with the drainage hose, open the slot in the other 2m department of foundation ditch, bury the intercommunication calandria underground in the slot, set up a plurality of standpipes on the intercommunication calandria, correspond the drainage hose in the precipitation well and connect on the standpipe on the next door, on the one hand can carry out reutilization to precipitation, on the other hand, only there is the spaced standpipe on the earth's surface, the site operation vehicle can be followed and is gone between the standpipe, it directly communicates the lake in and influence the site operation vehicle and go to have solved the drainage hose, in addition fail safe nature is high, the difficult accident that takes place water treatment, foundation pit bubble groove has been avoided.
The invention has the beneficial effects that: to facing lake foundation pit precipitation, the precipitation volume is great, compare in at present directly leading to the lake with the drainage hose in, dig the slot in the other 2m department of foundation pit, bury the intercommunication calandria underground in the slot, set up a plurality of standpipes on the intercommunication calandria, correspond the drainage hose in the precipitation well and connect on the standpipe on next door, on the one hand can carry out the reutilization to precipitation, on the other hand, only have spaced standpipe on the earth's surface, site operation vehicle can be followed and is gone between the standpipe, it directly communicates the lake in and influences the site operation vehicle and go to have solved the drainage hose, in addition, the fail safe nature is high, the difficult accident of taking place water treatment, foundation pit bubble groove has been avoided.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the instrumentalities particularly pointed out in the specification.
Drawings
FIG. 1 is a schematic plan view of the construction of an embodiment of the present invention;
FIG. 2 is a schematic illustration of a precipitation system according to an embodiment of the invention;
FIG. 3 is a schematic structural view of a drainage system according to an embodiment of the present invention;
FIG. 4 is a position diagram of a drainage system of an embodiment of the present invention;
FIG. 5 is a schematic view of a drain hose of a precipitation system according to an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a FRP water tank according to an embodiment of the invention;
fig. 7 is a schematic structural view of a holder according to an embodiment of the present invention.
Reference numerals are as follows: 1. a precipitation system; 11. dewatering wells; 12. a submersible pump; 13. a drain hose; 2. a drainage system; 21. the calandria is communicated; 22. a vertical tube; 23. a holder; 231. an annular shell; 232. locking the bolt; 233. a rubber block; 24. a discharge pipe; 3. a collection system; 31. a glass fiber reinforced plastic water tank; 32. a water inlet pipe; 33. a water outlet pipe; 34. an overflow pipe; 35. a sewage discharge pipe; 36. tensioning the support rod; 37. a box door; 38. an escalator; 4. intercepting a water curtain; 5. and (6) observing the well.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and illustrating the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
Referring to fig. 1, a lake-facing deep foundation pit dewatering device comprises a dewatering system 1, a drainage system 2, a collection system 3 and a secondary utilization system, referring to fig. 2, the dewatering system 1 comprises a plurality of dewatering wells 11, submersible pumps 12 respectively arranged at the bottoms of the dewatering wells 11, and drainage hoses 13 connected with the submersible pumps 12, referring to fig. 4 and 5, the drainage system 2 comprises a communication drainage pipe 21 buried below the ground surface, a plurality of vertical pipes 22 extending out of the ground surface are arranged on the communication drainage pipe 21, a plurality of fixing devices 23 are fixedly arranged on the vertical pipes 22, referring to fig. 5, the tail ends of the drainage hoses 13 are provided with threaded corrugated sections, the plurality of drainage hoses 13 are respectively communicated with the top ends of the vertical pipes 22 through the fixing devices 23, a drainage pipe 24 is communicated with the communication drainage pipe 21, referring to fig. 6, the collection system 3 is a glass fiber reinforced plastic water tank 31, a water inlet pipe 32 arranged on the glass fiber reinforced plastic water tank 31, a water outlet pipe 33, the drainage pipe 24 is not lower than the water inlet pipe 32, the water pipe 33 is higher than the outlet pipe 33, the secondary utilization system comprises a filtering and a pressurizing device (not shown), and the outlet pipe 33 is connected with the filtering and purifying device.
For the lake-facing foundation pit precipitation, the precipitation is great, compare in directly leading to the lake with the drainage hose 13 at present, dig the slot in the place of 2m by the foundation pit, bury the intercommunication calandria 21 in the slot underground, set up a plurality of standpipes 22 on the intercommunication calandria 21, correspond the drainage hose 13 in the precipitation well 11 and connect on the standpipe 22 of next door, on the one hand can carry out the reutilization to the precipitation, on the other hand, only have interval standpipe 22 on the earth's surface, the site operation vehicle can be followed and is gone between the standpipe 22, it influences the site operation vehicle and goes to have solved drainage hose 13 and directly linked to the lake, in addition safe and reliable is high, the accident of difficult emergence water treatment, avoided the foundation pit bubble groove.
The communicating calandria 21 is U-shaped and the two ends are sealed, the discharge pipe 24 is communicated with one corner and extends towards the direction far away from the communicating calandria 21, the communicating calandria 21 has reasonable structure and good drainage effect. The top end of the standpipe 22 is flared to facilitate communication between the drain hose 13 and the standpipe 22. Three fixing devices 23 are arranged at the top end of each vertical pipe 22, as shown in fig. 7, each fixing device 23 comprises an annular shell 231 fixed on the vertical pipe 22, a locking bolt 232 from outside to inside is connected to the annular shell 231 in a threaded manner, one end, located on the inner side of the annular shell 231, of the locking bolt 232 is rotatably connected with a rubber block 233, and according to the number of the fixing devices 23 actually arranged, the corrugated section of the drainage hose 13 is fastened through the locking bolt 232 to drive the rubber block 233.
The communicating calandria 21 is arranged below the ground surface by 50cm, the distance is reasonable, and the damage of a vehicle running in site construction to the communicating calandria 21 can be avoided. The stand pipes 22 exceed the ground surface by 50cm, the stand pipes 22 are spaced by 15m, the top ends of the stand pipes 22 are conveniently connected with the drainage hose 13, the stand pipes 22 are easy to see, and vehicles can be conveniently driven to pass through the stand pipes 22 due to the spacing of the stand pipes 22.
The communicating calandria 21 and the standpipe 22 are steel pipes, the structural strength of the communicating calandria 21 and the standpipe 22 is high, and the structural stability of the whole system is good.
An overflow pipe 34 and a sewage discharge pipe 35 are further communicated with the glass fiber reinforced plastic water tank 31, the overflow pipe 34 and the water inlet pipe 32 are the same in height, and the sewage discharge pipe 35 is located at the bottom end of the glass fiber reinforced plastic water tank 31.
The drainage system drains water into the glass fiber reinforced plastic water tank 31 through a water inlet pipe 32, and a water outlet pipe 33 is used for connecting a water resource secondary utilization system; the overflow pipe 34 is used for discharging excess liquid when the liquid level in the water tank exceeds the maximum allowable liquid level; the drain pipe 35 is used for discharging impurities precipitated in the water tank.
Still be provided with taut bracing piece 36 in the glass steel water tank 31, the top of glass steel water tank 31 is provided with chamber door 37, and the glass steel water tank 31 outside still fixedly is provided with the staircase 38 that is located chamber door 37 one side, if quality of water is not good appears, or if there are phenomenons such as silt or sediment in the case bottom, can make things convenient for personnel to get into glass steel water tank 31 and look over and know the condition.
The construction method of the lake-facing deep foundation pit dewatering device comprises the following steps,
after the construction of the spraying and stirring pile of the foundation pit water interception curtain 4 is finished, constructing a dewatering well 11 and an observation well 5, wherein a submersible pump 12 and a drainage hose 13 are arranged in the dewatering well 11; meanwhile, a groove with the depth of 70cm is dug at a position 2m away from the outside of the foundation pit, a communicating exhaust pipe 21 is buried in the groove, and the height difference between the communicating exhaust pipe 21 and the ground surface is not less than 50cm;
secondly, welding and communicating vertical pipes 22, arranging at intervals of 15m, welding bell mouths at the top ends, wherein the vertical pipes 22 are 50cm higher than the ground surface, and three fixing devices 23 are arranged at each bell mouth;
step three, manufacturing a glass fiber reinforced plastic water tank 31, and connecting the discharge pipe 24 with a water inlet pipe 32 of the glass fiber reinforced plastic water tank 31; the water outlet pipe 33 of the glass fiber reinforced plastic water tank 31 is connected with a filtering and purifying device and a pressurizing device for secondary utilization, and the secondary utilization is used for flushing a living toilet of workers, using water for bathing of the workers and supplying water for sprinkling and dust settling of a sprinkler on a construction site.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a face lake deep basal pit dewatering device which characterized in that: the device comprises a precipitation system (1), a drainage system (2), a collection system (3) and a secondary utilization system, wherein the precipitation system (1) comprises a plurality of precipitation wells (11), submersible pumps (12) respectively arranged at the bottoms in the precipitation wells (11), and drainage hoses (13) connected with the submersible pumps (12), the drainage system (2) comprises a communication drainage pipe (21) buried below the ground surface, a plurality of vertical pipes (22) extending out of the ground surface are arranged on the communication drainage pipe (21), a plurality of fixing devices (23) are arranged on the vertical pipes (22), the tail ends of the drainage hoses (13) are provided with thread-shaped corrugated sections, a plurality of drainage hoses (13) are respectively communicated at the top ends of the vertical pipes (22) through the fixing devices (23), a drainage pipe (24) is communicated on the communication drainage pipe (21), the collection system (3) is a glass fiber reinforced plastic water tank (31), a water inlet pipe (32) and a water outlet pipe (33) arranged on the glass fiber reinforced plastic water tank (31), the drainage hose (24) is not lower than the water inlet pipe (32), the water inlet pipe (33) is higher than the water outlet pipe (33), the secondary utilization system comprises a filtering device and a pressurizing device, the filtering device (33) and a purifying shell (231) which is connected with each of which comprises three vertical pipes (23), the annular shell (231) is connected with a locking bolt (232) from outside to inside in a threaded manner, and one end, located on the inner side of the annular shell (231), of the locking bolt (232) is rotatably connected with a rubber block (233).
2. The lake deep foundation pit precipitation device of claim 1, wherein: the communicating calandria (21) is U-shaped, two ends of the communicating calandria are sealed, and the discharge pipe (24) is communicated with one corner of the communicating calandria and extends towards the direction far away from the communicating calandria (21).
3. The lake deep foundation pit precipitation device of claim 2, wherein: the top end of the vertical pipe (22) is in a flaring horn shape.
4. The lake deep foundation pit precipitation device of claim 1, wherein: the communicating calandria (21) is arranged below 50cm of the ground surface.
5. The lake deep foundation pit precipitation device of claim 1, wherein: the vertical pipes (22) exceed the ground surface by 50cm, and the intervals between the vertical pipes (22) are 15m.
6. The lake deep foundation pit precipitation device of claim 1, wherein: the communicating calandria (21) and the standpipe (22) are both steel pipes.
7. The lake deep foundation pit precipitation device of claim 1, wherein: the glass fiber reinforced plastic water tank (31) is further communicated with an overflow pipe (34) and a sewage discharge pipe (35), the overflow pipe (34) is as high as the water inlet pipe (32), and the sewage discharge pipe (35) is located at the bottom end of the glass fiber reinforced plastic water tank (31).
8. The lake deep foundation pit precipitation device of claim 1, wherein: a tensioning support rod (36) is further arranged in the glass fiber reinforced plastic water tank (31), a tank door (37) is arranged at the top end of the glass fiber reinforced plastic water tank (31), and an escalator (38) located on one side of the tank door (37) is further fixedly arranged on the outer side of the glass fiber reinforced plastic water tank (31).
9. The construction method of the lake deep foundation pit dewatering device according to any one of claims 1-8, wherein: comprises the following steps of (a) carrying out,
step one, after the construction of a spraying and stirring pile of a foundation pit water interception curtain (4) is finished, constructing a dewatering well (11) and an observation well (5), wherein a submersible pump (12) and a drainage hose (13) are arranged in the dewatering well (11); meanwhile, a groove with the depth of 70cm is dug at a position 2m away from the outside of the foundation pit, a communicating exhaust pipe (21) is buried in the groove, and the height difference between the communicating exhaust pipe (21) and the ground surface is not less than 50cm;
welding and communicating vertical pipes (22) which are arranged at intervals of 15m, welding bell mouths at the top ends, wherein the vertical pipes (22) are 50cm higher than the ground surface, and three fixing devices (23) are arranged at each bell mouth;
thirdly, manufacturing a glass fiber reinforced plastic water tank (31), and connecting a discharge pipe (24) with a water inlet pipe (32) of the glass fiber reinforced plastic water tank (31); the water outlet pipe (33) of the glass fiber reinforced plastic water tank (31) is connected with the filtering and purifying device and the pressurizing device for secondary utilization, and the secondary utilization is used for flushing a worker living toilet, using water for washing the worker living bath and supplying water for sprinkling and dust settling of a sprinkler on a construction site.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110000984.3A CN113152500B (en) | 2021-01-04 | 2021-01-04 | Lake-facing deep foundation pit dewatering device and construction method thereof |
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| CN202110000984.3A CN113152500B (en) | 2021-01-04 | 2021-01-04 | Lake-facing deep foundation pit dewatering device and construction method thereof |
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| CN113152500B true CN113152500B (en) | 2022-10-21 |
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| JP2009179945A (en) * | 2008-01-29 | 2009-08-13 | Yoshitaka Igawa | Well conduit for road and its construction method |
| CN204435399U (en) * | 2015-02-04 | 2015-07-01 | 山东黄河工程集团有限公司 | Gas-water separation well-points dewatering device |
| CN209837072U (en) * | 2019-04-15 | 2019-12-24 | 腾达建设集团股份有限公司 | Foundation pit dewatering system |
| CN210066791U (en) * | 2019-05-10 | 2020-02-14 | 湖北中南岩土工程有限公司 | A precipitation combined system that is used for foundation ditch pressure release precipitation and dredges precipitation |
| CN211751570U (en) * | 2020-01-14 | 2020-10-27 | 刘静 | Painful department anesthesia nursing device |
| CN111691425B (en) * | 2020-04-26 | 2021-10-01 | 孙建立 | Water conservancy project foundation pit and pipe well combined light well point dewatering and drainage method |
| CN112049138A (en) * | 2020-09-04 | 2020-12-08 | 湖南省第六工程有限公司 | Deep foundation pit dewatering, purifying and recharging integrated system and control method |
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