CN114045848A - Construction method for pit foundation in water inrush pit - Google Patents
Construction method for pit foundation in water inrush pit Download PDFInfo
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- CN114045848A CN114045848A CN202111364598.9A CN202111364598A CN114045848A CN 114045848 A CN114045848 A CN 114045848A CN 202111364598 A CN202111364598 A CN 202111364598A CN 114045848 A CN114045848 A CN 114045848A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 290
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000001914 filtration Methods 0.000 claims abstract description 95
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000004381 surface treatment Methods 0.000 claims abstract description 8
- 239000011449 brick Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 239000010426 asphalt Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 6
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 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
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Abstract
The invention discloses a construction method of a pit foundation in a water inrush pit, which comprises the following steps: excavating a water collecting shallow pit around the water gushing point, and building a fence structure; digging a water collecting well on the slope surface of the edge of the pit in the pit; excavating an aqueduct on the foundation of the pit in the pit, wherein one end of the aqueduct is communicated with the water collecting shallow pit, and the other end of the aqueduct is communicated with the water collecting well; a water diversion closed conduit is built in the water diversion channel, one end of the water diversion closed conduit is communicated with the opening of the enclosure structure, and the other end of the water diversion closed conduit is communicated with the lower end of the water collecting well; placing the water filtering barrel into the water collecting well, wherein the upper end of the water filtering barrel is provided with an opening, the lower end of the water filtering barrel is provided with water filtering holes, and the submersible pump is placed into the water filtering barrel and discharges water outwards; after finishing the surface treatment and the waterproof treatment, the submersible pump is drawn out, the water filtering bucket is sealed, and the foundation concrete is poured into the pit. By the method, the water collecting shallow pit is arranged on the substrate for pumping and draining, water burst points are not enlarged, a dark drainage path is short, the engineering quantity is small, waterless operation of pits in the pit is realized, normal construction of the foundation is guaranteed, and water burst treatment is economical.
Description
Technical Field
The invention relates to the field of building construction, in particular to a construction method for a pit foundation in a water inrush pit.
Background
After the large surface of the basement foundation pit is excavated, the elevation of a structural water collecting pit, an elevator shaft and the like in the basement is still lower than that of a basement bottom plate, and the parts still need to be excavated downwards, so that a pit-in-pit is formed. After the foundation pit is excavated to the bottom, although the foundation pit has drainage and drainage measures, underground crack water is easy to gush and leak at the pit-in-pit part close to the underground water level to form gushing water, and the foundation construction is seriously influenced. The phenomenon is easy to occur in deep foundation pit engineering of uneven geology and shallow foundation pit engineering of open drainage. If water gushes in the pit, the water gushing point must be treated, and the foundation construction can be carried out only by draining the pit bottom.
In the prior art, a water collecting hidden pit is arranged at the bottom of a pit, and then a hidden channel is arranged to lead gushing water to a drainage ditch and a water collecting well on the periphery of a foundation pit. However, water inrush points appear at the bottom of the pit, and a water collecting hidden pit is excavated downwards at the water inrush points, so that large-range sudden inrush caused by water inrush is easily expanded, and water diversion treatment measures of the water collecting hidden pit are invalid. Meanwhile, the water diversion path of the water collection underdrain is long, the engineering quantity is large, the efficiency is low, and the water collection underdrain is not economical.
Therefore, how to provide a foundation construction method for a water inrush pit, which overcomes the above problems, is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide a construction method of a pit-in-pit foundation of a water inrush pit, which is characterized in that a water collection shallow pit is arranged on a foundation for pumping and draining water, water inrush points are not enlarged, a dark drainage path is short, the engineering quantity is small, waterless operation of the pit-in-pit is realized, normal construction of the foundation is ensured, and water inrush treatment is economical.
In order to solve the technical problem, the invention provides a construction method for a pit foundation in a water inrush pit, which comprises the following steps:
excavating a water collection shallow pit around a water burst point, and building a barrier structure around the water burst point in the water collection shallow pit;
digging a water collecting well on the slope surface of the edge of the pit in the pit, wherein the lower end of the water collecting well is positioned below the base of the pit in the pit;
excavating an aqueduct on the foundation of the pit in the pit, wherein one end of the aqueduct is communicated with the shallow water collecting pit, the other end of the aqueduct is communicated with the water collecting well, and the bottom surface of the aqueduct is lower than the bottom surface of the shallow water collecting pit;
building a water diversion closed conduit in the water diversion channel, wherein one end of the water diversion closed conduit is communicated with the opening of the enclosure structure, and the other end of the water diversion closed conduit is communicated with the lower end of the water collecting well;
placing a water filtering barrel into the water collecting well, wherein an opening is formed in the upper end of the water filtering barrel, water filtering holes are formed in the lower end of the water filtering barrel, and a submersible pump is placed into the water filtering barrel to discharge water outwards;
and after the surface treatment and the waterproof treatment are finished, the submersible pump is drawn out, the water filtering bucket is sealed, and foundation concrete is poured into the pit.
Preferably, the enclosure mechanism comprises a plurality of long bricks tightly surrounding the water inrush point, the long bricks are radially arranged and are radially arranged, mortar is filled between the adjacent long bricks, and the water diversion hidden channel is built by a plurality of small bricks.
Preferably, the water collection shallow pit is a round pit with the depth of 5cm, the water diversion dark channel is 20cm high, and the upper end surface of the water diversion dark channel is flush with the pit-in-pit base.
Preferably, the water collecting well is a circular truncated cone-shaped well, the side wall of the water collecting well is plastered, the height of the circular truncated cone-shaped well is 50cm, the clear width of the bottom is 40cm, the clear width of the top is 30cm, and the bottom surface of the circular truncated cone-shaped well is 20cm lower than the base of the pit in the pit.
Preferably, the surface treatment and the water repellent treatment include the steps of:
trimming the soil around the water filtering bucket and the pit-in-pit base, and pouring cushion concrete;
building a sidewall brick moulding bed of a pit in the pit and plastering;
removing a groove around the water filtering barrel, filling non-solidified asphalt, brushing the non-solidified asphalt around the water filtering barrel, paving and pasting a reinforced waterproof coiled material, and paving and pasting a large-surface waterproof coiled material after finishing;
and pouring a waterproof protective layer after the waterproof concealment acceptance is qualified.
Preferably, the step of closing the water filtering bucket comprises the following steps:
and introducing water-tight dry powder into the water filtering barrel, and welding and sealing the barrel opening of the water filtering barrel by using a sealing plate.
Preferably, the width and the depth of the groove are 2cm, non-solidified asphalt with the thickness of 1.5mm is coated in the range of 25cm around the water filtering barrel, the reinforced waterproof coiled material returns to the height of 25cm on the wall of the water filtering barrel, and water-tight dry powder with the height of 50cm is led into the water filtering barrel.
Preferably, the upper end of the water filtering barrel is vertically cylindrical, the lower end of the water filtering barrel is conical with a downward pointed end, and the plurality of water filtering holes are formed in the conical shape and the lower part of the cylindrical shape.
Preferably, a water stopping flange is arranged on the outer wall of the water filtering barrel.
Preferably, the water filtering barrel is a galvanized steel pipe with the pipe diameter of 300mm and the wall thickness of 1.5mm, the water filtering barrel is 30cm higher than the waterproof protective layer, the water filtering holes are welded in the length range of 500mm from bottom to top of the water filtering barrel, the diameter of each water filtering hole is 1cm and 5cm, the water stopping flange is welded at the 500mm position from bottom to top of the water filtering barrel, and the width of the water stopping flange is 100 mm.
The invention provides a construction method for a pit foundation in a water inrush pit, which comprises the following steps: excavating a water collection shallow pit around the water burst point, and building a barrier structure around the water burst point in the water collection shallow pit; digging a water collecting well on the slope surface of the edge of the pit in the pit, wherein the lower end of the water collecting well is positioned below the base of the pit in the pit; excavating an approach canal on the pit foundation, wherein one end of the approach canal is communicated with the water collection shallow pit, the other end of the approach canal is communicated with the water collection well, and the bottom surface of the approach canal is lower than that of the water collection shallow pit; a water diversion closed conduit is built in the water diversion channel, one end of the water diversion closed conduit is communicated with the opening of the enclosure structure, and the other end of the water diversion closed conduit is communicated with the lower end of the water collecting well; placing the water filtering barrel into the water collecting well, wherein the upper end of the water filtering barrel is provided with an opening, the lower end of the water filtering barrel is provided with water filtering holes, and the submersible pump is placed into the water filtering barrel and discharges water outwards; after finishing the surface treatment and the waterproof treatment, the submersible pump is drawn out, the water filtering bucket is sealed, and the foundation concrete is poured into the pit.
By the method, the water collecting shallow pit is arranged on the substrate for pumping and draining, water burst points are not enlarged, a dark drainage path is short, the engineering quantity is small, waterless operation of pits in the pit is realized, normal construction of the foundation is guaranteed, and water burst treatment is economical.
Drawings
FIG. 1 is a schematic diagram of an excavation process of one embodiment of a foundation construction method for a water inrush pit according to the present invention;
FIG. 2 is a schematic diagram of a waterproofing process according to an embodiment of the foundation construction method for a pit in a water inrush pit provided by the present invention;
FIG. 3 is a schematic view of a pouring process of an embodiment of a foundation construction method for a water inrush pit according to the present invention;
fig. 4 is a schematic structural diagram of a fence structure in an embodiment of the foundation construction method for a pit in a water inrush pit provided by the present invention;
FIG. 5 is a schematic structural view of a water diversion underground conduit in a concrete embodiment of the foundation construction method for a pit in a water inrush pit provided by the present invention;
fig. 6 is a schematic structural diagram of a water filtering bucket in a specific embodiment of a foundation construction method of a water inrush pit provided by the invention.
Wherein, 1, water burst point; 2. a water collecting shallow pit; 3. a water collecting well; 4. a water diversion canal; 5. a water filtering bucket; 51. water filtering holes; 52. stopping the flange; 6. a submersible pump; 7. a base concrete; 8. long bricks; 9. mortar; 10. small bricks; 11. bedding concrete; 12. reinforcing the waterproof coiled material; 13. a waterproof protective layer; 14. the water does not leak dry powder; 15. and (7) closing the plate.
Detailed Description
The core of the invention is to provide a construction method of a pit-in-pit foundation for a water inrush pit, a water collection shallow pit is arranged on a foundation for pumping and draining water, a water inrush point is not enlarged, a dark drainage path is short, the engineering quantity is small, waterless operation of the pit-in-pit is realized, normal construction of the foundation is ensured, and water inrush treatment is economical.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 5, fig. 1 is a schematic diagram illustrating an excavation process of a foundation construction method for a water inrush pit according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a waterproofing process according to an embodiment of the foundation construction method for a pit in a water inrush pit provided by the present invention; FIG. 3 is a schematic view of a pouring process of an embodiment of a foundation construction method for a water inrush pit according to the present invention; fig. 4 is a schematic structural diagram of a fence structure in an embodiment of the foundation construction method for a pit in a water inrush pit provided by the present invention; fig. 5 is a schematic structural view of a water diversion underground passage in a specific embodiment of the foundation construction method for a pit in a water inrush pit provided by the invention.
The specific implementation mode of the invention provides a construction method for a pit foundation in a water gushing pit, which comprises the following steps:
after the foundation is dug to the elevation of the bottom of the cushion layer, a water burst point 1 appears, a water collection shallow pit 2 is dug around the water burst point 1, the water collection shallow pit 2 is a round pit with the depth of 5cm, and a surrounding structure is built around the water burst point 1 in the water collection shallow pit 2. Specifically, enclose fender mechanism and constitute by a plurality of long bricks 8, a plurality of long bricks 8 closely are the radioactivity and arrange around gushing water point 1, and each long brick 8 is along radially arranging, fills mortar 9 between the adjacent long brick 8 simultaneously to enclose fender mechanism side and set up the opening. Other materials for the enclosure mechanism, such as a sleeve structure, are also within the scope of the present invention.
Digging a water collecting well 3 on the slope surface of the edge of the pit in the pit, wherein the lower end of the water collecting well 3 is positioned below the base of the pit in the pit, the water collecting well 3 is a circular truncated cone-shaped well, the side wall of the water collecting well is plastered, the height of the circular truncated cone-shaped well is 50cm, the clear width of the bottom is 40cm, the clear width of the top is 30cm, the bottom surface of the circular truncated cone-shaped well is lower than the base of the pit in the pit by 20cm, and the specific shape and size parameters of each structure can be adjusted according to the requirements.
An approach canal 4 is dug on the foundation of the pit in the pit, one end of the approach canal 4 is communicated with the water collection shallow pit 2, the other end of the approach canal 4 is communicated with the water collection well 3, and the bottom surface of the approach canal 4 is lower than that of the water collection shallow pit 2. When a plurality of water inrush points 1 appear on the substrate, a water collection shallow pit 2 is dug around each water inrush point 1, a fence structure is configured, and the water collection shallow pit is communicated to a water collection well 3 through a plurality of water guide channels 4.
And a water diversion closed conduit is built in the water diversion channel 4, one end of the water diversion closed conduit is communicated with the opening of the enclosure structure, and the other end of the water diversion closed conduit is communicated with the lower end of the water collecting well 3. The water diversion dark road is built by a plurality of small bricks 10, the height of the water diversion dark road is 20cm, and the upper end surface of the water diversion dark road is flush with the bottom of the pit base in the pit.
Preferably, in the masonry process, the submersible pump can be placed into the water collecting well 3 to temporarily pump water, the water is discharged to a municipal pipe network, the submersible pump is selected according to the lift, and the water discharging pipe diameter is selected according to the water inflow amount.
The water filtering barrel 5 is placed into the water collecting well 3, an opening is formed in the upper end of the water filtering barrel 5, water filtering holes 51 are formed in the lower end of the water filtering barrel 5, and the submersible pump 6 is placed into the water filtering barrel 5 and discharges water outwards.
After the surface treatment and the waterproof treatment are finished, the submersible pump 6 is drawn out, the water filtering barrel 5 is sealed, and the foundation concrete 7 is poured into the pit.
In the foundation construction method for a pit in a gushing water pit according to the embodiment of the present invention, the surface treatment and the waterproof treatment include the steps of:
trimming soil around the water filtering bucket 5 and a pit base in the pit, and pouring cushion layer concrete 11;
building a sidewall brick moulding bed of a pit in the pit and plastering;
and (3) removing a groove around the water filtering barrel 5, filling non-solidified asphalt, brushing the non-solidified asphalt around the water filtering barrel 5, paving and pasting the reinforced waterproof coiled material 12, and paving and pasting the large-surface waterproof coiled material after finishing.
Specifically, the width and depth of the groove are 2cm, non-solidified asphalt with the thickness of 1.5mm is coated in the range of 25cm around the water filtering bucket 5, and the reinforced waterproof coiled material 12 returns to the height of 25cm on the wall of the water filtering bucket 5
Closing the filtering water tub 5 comprises the steps of:
the dry powder 14 without water leakage is led into the water filtering barrel 5, the closing plate 15 is used for welding and closing the barrel mouth of the water filtering barrel 5, the dry powder 14 without water leakage is adopted for closing the bottom of the water collecting well 3, and the characteristics of water absorption, impermeability and rapid hardening of the dry powder without water leakage can be fully utilized for rapidly closing the bottom. Specifically, a water-tight dry powder having a height of 50cm was introduced into the water filtration tub 5. Or the specific dimensional parameters of the various components may be adjusted as appropriate, all within the scope of the present invention.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a water filtering bucket in an embodiment of a foundation construction method of a water gushing pit according to the present invention.
On the basis of the construction method of the foundation of the water gushing pit provided by each embodiment, the upper end of the water filtering barrel 5 is vertically cylindrical, the lower end of the water filtering barrel is conical with a downward tip, the plurality of water filtering holes 51 are formed in the lower parts of the conical shape and the cylindrical shape, and the submersible pump 6 cannot fall to the bottom due to the fact that the lower part of the water filtering barrel 5 is a tip shoe, and silt can be prevented from entering the pump. The outer wall of the filtering water barrel 5 is provided with a water stopping flange 52. Furthermore, the water filtering barrel with two water stopping flanges 52 is arranged, the top of the water filtering barrel is sealed and buried in the foundation, the treatment is simple, and the field manufacture and the installation are convenient.
Specifically, the water filtering barrel 5 is a galvanized steel pipe with the pipe diameter of 300mm and the wall thickness of 1.5mm, the water filtering barrel 5 is 30cm higher than the waterproof protective layer, water filtering holes 51 are welded in the length range of 500mm from bottom to top of the water filtering barrel 5, the diameter of each water filtering hole 51 is 1cm, the diameter of each water filtering hole 51 is 5cm, the water stopping flange 52 is welded at the 500mm position from bottom to top of the water filtering barrel 5, and the width of the water stopping flange 52 is 100 mm.
The construction method of the foundation of the pit in the water inrush pit provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A foundation construction method for a pit in a water inrush pit is characterized by comprising the following steps:
excavating a water collection shallow pit (2) around the water gushing point (1), and building a fence structure around the water gushing point (1) in the water collection shallow pit (2);
digging a water collecting well (3) on the slope surface of the edge of the pit in the pit, wherein the lower end of the water collecting well (3) is positioned below the base of the pit in the pit;
excavating an aqueduct (4) on the foundation of the pit in the pit, wherein one end of the aqueduct (4) is communicated with the shallow water collecting pit (2), the other end of the aqueduct (4) is communicated with the water collecting well (3), and the bottom surface of the aqueduct (4) is lower than that of the shallow water collecting pit (2);
a water diversion closed conduit is built in the water diversion channel (4), one end of the water diversion closed conduit is communicated with the opening of the enclosure structure, and the other end of the water diversion closed conduit is communicated with the lower end of the water collecting well (3);
placing a water filtering barrel (5) into the water collecting well (3), wherein an opening is formed in the upper end of the water filtering barrel (5), a water filtering hole (51) is formed in the lower end of the water filtering barrel (5), and a submersible pump (6) is placed into the water filtering barrel (5) and discharges water outwards;
after the surface treatment and the waterproof treatment are finished, the submersible pump (6) is drawn out, the water filtering barrel (5) is closed, and foundation concrete (7) is poured into the pit.
2. The foundation construction method of a pit in a water gushing pit according to claim 1, characterized in that the retaining mechanism comprises a plurality of long bricks (8) closely surrounding the water gushing point (1), the long bricks (8) are arranged radially and radially, mortar (9) is filled between adjacent long bricks (8), and the water diversion hidden channel is built by a plurality of small bricks (10).
3. The foundation construction method of the water gushing pit-in-pit according to claim 2, characterized in that the water collecting shallow pit (2) is a round pit with a depth of 5cm, the water diversion dark channel has a height of 20cm, and the upper end surface of the water diversion dark channel is flush with the pit-in-pit foundation.
4. The foundation construction method of a pit in a water inrush pit according to claim 3, characterized in that the water collecting well (3) is a truncated cone well with a plastered side wall, the height of the truncated cone well is 50cm, the clear width of the bottom is 40cm, the clear width of the top is 30cm, and the bottom surface of the truncated cone well is 20cm lower than the bottom of the pit in the pit.
5. The method of foundation construction of a pit in a flooded pit according to claim 1, wherein the surface treatment and waterproofing comprises the steps of:
trimming soil around the water filtering bucket (5) and the pit base in the pit, and pouring cushion concrete (11);
building a sidewall brick moulding bed of a pit in the pit and plastering;
removing a groove around the water filtering barrel (5), filling non-solidified asphalt, brushing the non-solidified asphalt around the water filtering barrel (5), paving and sticking a reinforced waterproof coiled material (12), and paving and sticking a large-surface waterproof coiled material after finishing;
and after the waterproof concealment is qualified, pouring a waterproof protective layer (13).
6. The foundation construction method of a gush pit according to claim 5, characterized in that said closing of said filtering water tub (5) comprises the steps of:
and (3) introducing water-tight dry powder (14) into the water filtering barrel (5), and welding and sealing the barrel opening of the water filtering barrel (5) by using a sealing plate (15).
7. The foundation construction method of a gush pit according to claim 6, characterized in that the groove is 2cm wide and deep, non-solidified asphalt with a thickness of 1.5mm is painted within 25cm around the filtering water barrel (5), the reinforced waterproof roll (12) returns to 25cm high on the wall of the filtering water barrel (5), and water-tight dry powder with a height of 50cm is introduced into the filtering water barrel (5).
8. The foundation construction method of a gushing water pit according to any one of claims 1 to 7, wherein the upper end of the water filtering barrel (5) is vertically cylindrical, the lower end is conical with the pointed end downwards, and a plurality of water filtering holes (51) are arranged at the lower parts of the conical and cylindrical.
9. The foundation construction method of a water inrush pit according to claim 8, characterized in that a water stopping flange (52) is provided on the outer wall of the water filtering bucket (5).
10. The foundation construction method of the water gushing pit according to claim 9, wherein the water filtering barrel (5) is a galvanized steel pipe with the pipe diameter of 300mm and the wall thickness of 1.5mm, the water filtering barrel (5) is higher than the waterproof protective layer by 30cm, the water filtering holes (51) are welded in the length range of 500mm from bottom to top of the water filtering barrel (5), the diameter of each water filtering hole (51) is 1cm, the diameter of each water filtering hole (51) is 5cm, the water stopping flange (52) is welded at the position of 500mm from bottom to top of the water filtering barrel (5), and the width of the water stopping flange (52) is 100 mm.
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| CN202111364598.9A CN114045848A (en) | 2021-11-17 | 2021-11-17 | Construction method for pit foundation in water inrush pit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324090A (en) * | 2022-10-13 | 2022-11-11 | 山东金城建设有限公司 | Underground engineering pit-in-pit dewatering and well sealing construction method |
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| CN101550701A (en) * | 2009-04-30 | 2009-10-07 | 中冶实久建设有限公司 | Method and device for treating partial water burst of foundation ditch |
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