CN112302714A - Dewatering well sealing system and construction method thereof - Google Patents
Dewatering well sealing system and construction method thereof Download PDFInfo
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- CN112302714A CN112302714A CN202011146985.0A CN202011146985A CN112302714A CN 112302714 A CN112302714 A CN 112302714A CN 202011146985 A CN202011146985 A CN 202011146985A CN 112302714 A CN112302714 A CN 112302714A
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- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 111
- 239000010959 steel Substances 0.000 claims abstract description 111
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000001556 precipitation Methods 0.000 claims abstract description 57
- 239000011083 cement mortar Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 210000003934 vacuole Anatomy 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
-
- 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
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Geochemistry & Mineralogy (AREA)
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Abstract
The invention relates to a dewatering well closed system, which comprises: the water stopping steel plate is sleeved and fixed at the top end of the dewatering well; pouring a first concrete structure which is formed in the foundation pit and is partially buried in the precipitation well, wherein the elevation of the top surface of the first concrete structure is lower than that of the bottom surface of the water stop steel plate, and a gap is reserved between the first concrete structure and the water stop steel plate; filling a cement mortar structure formed in the gap, and fixedly connecting the water stop steel plate with the first concrete structure; pouring a precipitation well concrete structure formed in the precipitation well; a sealing plate covered on the dewatering well; and a second concrete structure which is formed on the cement mortar structure in a pouring mode and is used for embedding and fixing the water-stop steel plate and the sealing plate. Have the stone in the concrete that adopts in comparing in prior art, mobility is relatively poor, is difficult for the bubble to flow out, and the cement mortar mobility that this application adopted is good, is difficult for thoughtlessly having the bubble, has avoided the bubble to gather in stagnant water steel sheet lower part vacuole formation and cause the problem of infiltration.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a dewatering well sealing system and a construction method thereof.
Background
The dewatering well is a small well for draining accumulated water in a mine tunnel or a stope. In general, in the process of mining, an underground tunnel drainage system is available, so that water in a stope or a tunnel is guided into precipitation wells at certain intervals along a ditch, flows into a water sump through the underground tunnel communicated with the precipitation wells, and is drained to the ground through a special drainage well by a water pump or directly flows out of the ground through the drainage tunnel.
Among the prior art precipitation well closed system locate the foundation ditch, concreting forms the bottom plate and buries solid precipitation well in the foundation ditch, because the bottom plate concrete is the one-time casting shaping, and the bubble in the concrete is easy to be at the lower part gathering formation cavity of stagnant water steel sheet, influences the closely knit nature of structure, and the easy water storage of cavity and then causes the problem of infiltration moreover.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a dewatering well sealing system and a construction method thereof so as to solve the problem that the lower part of a water stop steel plate is easy to form a cavity to cause water seepage in the prior art.
In order to achieve the above object, the present invention provides a dewatering well sealing system, wherein a dewatering well is arranged in a foundation pit, the sealing system comprises:
the water stopping steel plate is sleeved and fixed at the top end of the dewatering well;
pouring a first concrete structure which is formed in the foundation pit and is partially embedded in the precipitation well, wherein the elevation of the top surface of the first concrete structure is lower than that of the bottom surface of the water stop steel plate, and a gap is reserved between the first concrete structure and the water stop steel plate;
filling a cement mortar structure formed at the gap, and fixedly connecting the water stop steel plate and the first concrete structure;
pouring a precipitation well concrete structure formed in the precipitation well;
the sealing plate is covered on the dewatering well; and
and a second concrete structure which is formed on the cement mortar structure in a pouring mode and is used for embedding and fixing the water stop steel plate and the sealing plate.
According to the invention, the first concrete structure is formed by pouring, so that a gap is reserved between the first concrete structure and the water stop steel plate, and then cement mortar is filled in the gap to fixedly connect the water stop steel plate and the first concrete structure. The cement mortar has a waterproof concept, and further plays a role of water stopping between the water-stopping steel plate and the first concrete structure.
The dewatering well sealing system is further improved in that the dewatering well sealing system also comprises a steel sleeve which is sleeved on the dewatering well and the bottom of the steel sleeve is inserted on the bottom surface of the foundation pit;
the water stop steel plate is sleeved and fixed at the top end of the steel sleeve.
The dewatering well closed system is further improved in that the dewatering well closed system further comprises a first waterproof layer laid on the bottom surface of the foundation pit, and the first waterproof layer is turned upwards at the dewatering well and partially wraps the dewatering well.
The dewatering well sealing system is further improved in that a second waterproof layer is formed at the joint of the first waterproof layer and the dewatering well and the joint of the first waterproof layer in a coating mode.
The dewatering well sealing system is further improved in that the dewatering well sealing system also comprises a foundation pit leveling layer paved on the bottom surface of the foundation pit.
The invention also provides a construction method of the dewatering well closed system, which comprises the following steps:
providing a water stopping steel plate, and sleeving and fixing the water stopping steel plate on the top end of the dewatering well;
pouring concrete in the foundation pit to form a first concrete structure and partially burying the precipitation well, so that the elevation of the top surface of the first concrete structure is lower than that of the bottom surface of the water stop steel plate, and a gap is reserved between the first concrete structure and the water stop steel plate;
filling cement mortar in the gap to form a cement mortar structure;
pouring concrete in the precipitation well to form a precipitation well concrete structure;
providing a sealing plate, and covering the sealing plate on the dewatering well;
and pouring concrete on the cement mortar structure to form a second concrete structure, and burying and fixing the water stop steel plate and the sealing plate.
The construction method of the dewatering well closed system is further improved in that the construction method further comprises the following steps:
providing a steel sleeve, sleeving the steel sleeve on the dewatering well, and inserting the bottom of the steel sleeve into the bottom surface of the foundation pit;
and sleeving and fixing the water stop steel plate on the top end of the steel sleeve.
The construction method of the dewatering well closed system is further improved in that the construction method further comprises the following steps:
and providing a first waterproof layer, paving the first waterproof layer on the bottom surface of the foundation pit, and enabling the first waterproof layer to be upwards turned at the dewatering well and partially wrap the dewatering well.
The construction method of the dewatering well closed system is further improved in that the construction method further comprises the following steps:
and providing a water stopping material, and coating the water stopping material on the joint of the first waterproof layer and the dewatering well and the joint of the first waterproof layer to form a second waterproof layer.
The construction method of the dewatering well closed system is further improved in that the construction method further comprises the following steps:
and laying a foundation pit leveling layer on the bottom surface of the foundation pit.
Drawings
Fig. 1 is a schematic structural diagram of a dewatering well in the dewatering well closed system of the invention.
Fig. 2 is a schematic structural diagram of a dewatering well, a steel sleeve, a water stop steel plate, a first waterproof layer and a second waterproof layer in the dewatering well closed system.
Fig. 3 is a schematic structural diagram of a dewatering well, a steel casing, a water stop steel plate, a first waterproof layer, a second waterproof layer and a first concrete structure in the dewatering well sealing system.
FIG. 4 is a schematic structural diagram of a dewatering well, a steel casing, a water stop steel plate, a first waterproof layer, a second waterproof layer, a first concrete structure and a dewatering well concrete structure of the dewatering well sealing system of the present invention.
Fig. 5 is a schematic structural diagram of the dewatering well closing system of the present invention.
In the figure: the construction method comprises the following steps of 1, 11, 2, 31, 32, 4, 5, 6, 71, 72 and 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a dewatering well sealing system which is used for sealing a dewatering well and comprises a water stop steel plate, a first concrete structure, a cement mortar structure, a dewatering well concrete structure, a sealing plate and a second concrete structure.
The dewatering well closing system of the invention is explained below with reference to the attached drawings.
Referring to fig. 5, in this embodiment, a dewatering well closed system is provided in the foundation pit, and dewatering well 1 is provided in the foundation pit, and the closed system includes: a water stop steel plate 2, a first concrete structure 31, a cement mortar structure 4, precipitation well concrete structure 11, shrouding 6 and second concrete structure 32, stagnant water steel sheet 2 cover is established and is fixed in the top of precipitation well 1, first concrete structure 31 pours and forms in the foundation ditch and partly buries solid precipitation well 1, the elevation of first concrete structure 31 top surface is less than the elevation of stagnant water steel sheet 2 bottom surface, leave between first concrete structure 31 and the stagnant water steel sheet 2 and be equipped with a clearance, cement mortar structure 4 fills and forms in clearance department and fixed connection stagnant water steel sheet 2 and first concrete structure 31, precipitation well concrete structure 11 pours and forms in precipitation well 1, shrouding 6 is covered on precipitation well 1, second concrete structure 32 pours and forms on cement mortar structure 4 and buries solid stagnant water steel sheet 2 and shrouding 6, first concrete structure 31, second concrete structure 32 and cement mortar structure 4 constitute the bottom plate of foundation ditch.
According to the invention, the first concrete structure 31 is formed by pouring, so that a gap is reserved between the first concrete structure 31 and the water stop steel plate 2, and then cement mortar is filled in the gap to fixedly connect the water stop steel plate 2 and the first concrete structure 31. The cement mortar has a waterproof concept, and further plays a role of water stopping between the water-stopping steel plate and the first concrete structure.
Referring to fig. 2, further, the closed system further includes a steel casing pipe 5 sleeved on the dewatering well 1 and having a bottom inserted on the bottom surface of the foundation pit, and the water stop steel plate 2 is sleeved and fixed on the top end of the steel casing pipe 5. If adopt steel precipitation well 1 then can directly weld stagnant water steel sheet 2 on steel precipitation well 1 among the prior art, but if adopt PVC precipitation well 1 then can't weld stagnant water steel sheet 2 to PVC precipitation well 1 on, the steel casing pipe is established to the precipitation well of any material all accessible cover on the precipitation well in this application to solve the welding problem of stagnant water steel sheet.
Referring to fig. 2, further, the sealing system further comprises a first waterproof layer 71 laid on the bottom surface of the foundation pit, wherein the first waterproof layer 71 is folded upwards at the precipitation well 1 and partially wraps the precipitation well 1, so as to prevent water seepage for the precipitation well.
Referring to fig. 2, preferably, a second waterproof layer 72 is coated at a joint of the first waterproof layer 71 and the dewatering well 1 and a seam of the first waterproof layer 71 to waterproof the seam. Specifically, the first waterproof layer 71 is a waterproof roll.
Referring to fig. 2, in this embodiment, the closure system further includes a pit screed layer 8 laid over the bottom surface of the pit. Preferably, the first waterproof layer 71 is laid on the foundation pit leveling layer 8. Specifically, the second waterproof layer 72 is water putty.
Referring to fig. 5, further, the concrete strength of the second concrete structure 32 is greater than that of the first concrete structure 31, and the cement mortar strength of the cement mortar structure 4 is greater than that of the first concrete structure 31.
Referring to fig. 4 and 5, further, the top surface of the dewatering well 1, the top surface of the steel casing 5 and the top surface of the water-stopping steel plate 2 are flush, and the sealing plate 6 is fixedly arranged on the water-stopping steel plate 2 and covers the dewatering well 1.
Referring to fig. 2, the steel casing 5 is preferably inserted at least 100mm below the leveling course 8 of the foundation pit.
Referring to fig. 3, 4 and 5, preferably, when the thickness of the bottom plate is greater than 600mm, the elevation of the top surface of the dewatering well 1 is +300mm of the elevation of the bottom plate surface; when the thickness of the bottom plate is not more than 600mm, the elevation of the top surface of the dewatering well 1 is the central elevation of the bottom plate. In the prior art, the top surface of the dewatering well 1 is flush with the top surface of the bottom plate, the part of the dewatering well 1 fixedly buried in the bottom plate is longer, a plurality of water stop steel plates 2 are required to be arranged at intervals, only the part of the dewatering well 1 above the top surface of the bottom plate can be recycled, and the consumed dewatering well 1 and the water stop steel plates 2 are more in material and higher in cost. The utility model provides a precipitation well 1 has reduced the length of precipitation well 1 according to the elevation of bottom plate, and only needs set up a stagnant water steel sheet 2 in precipitation well 1 top department, and then has reduced the material consumption of precipitation well 1 and stagnant water steel sheet 2, has practiced thrift construction cost.
Referring to fig. 3, 4 and 5, preferably, the dewatering well concrete structure 11 includes a first dewatering well concrete structure 11 and a second dewatering well concrete structure 11 which are located below the bottom surface of the foundation pit, the concrete strength of the first dewatering well concrete structure 11 is less than that of the second dewatering well concrete structure 11, and the concrete strength of the second dewatering well concrete structure 11 is equal to that of the first concrete structure 31.
The working flow of the dewatering well closing system of the present invention is explained below.
Sleeving a steel sleeve 5 on a precipitation well 1, inserting the bottom of the steel sleeve 5 on the bottom surface of a foundation pit, sleeving and fixing a water stop steel plate 2 on the top end of the steel sleeve 5, paving a foundation pit leveling layer 8 on the bottom surface of the foundation pit, paving a first waterproof layer 71 on the foundation pit leveling layer 8, turning the first waterproof layer 71 upwards at the precipitation well 1 and partially wrapping the precipitation well 1, coating a water stop material on the joint of the first waterproof layer 71 and the precipitation well 1 and the joint of the first waterproof layer 71 to form a second waterproof layer 72, pouring concrete in the foundation pit to form a first concrete structure 31 and partially bury the precipitation well 1, enabling the elevation of the top surface of the first concrete structure 31 to be lower than the elevation of the bottom surface of the water stop steel plate 2, so that a gap is reserved between the part of the first concrete structure 31 below the precipitation well 1 and the water stop steel plate 2, and filling cement mortar in the gap to form a cement mortar structure 4, and pouring concrete in the precipitation well 1 to form a precipitation well concrete structure 11, covering the sealing plate 6 on the precipitation well 1, pouring concrete on the cement mortar structure 4 to form a second concrete structure 32, and burying and fixing the water stop steel plate 2 and the sealing plate 6.
The invention also provides a construction method of the dewatering well closed system, which comprises the following steps:
referring to fig. 1 and 2, a water-stopping steel plate 2 is provided, and the water-stopping steel plate 2 is fixed on the top end of the dewatering well 1 in a sleeved mode.
Referring to fig. 3, concrete is poured into the foundation pit to form a first concrete structure 31, and the precipitation well 1 is partially buried, so that the elevation of the top surface of the first concrete structure 31 is lower than the elevation of the bottom surface of the water-stop steel plate 2, and a gap is left between the part of the first concrete structure 31 below the precipitation well 1 and the water-stop steel plate 2.
Referring to fig. 4, cement mortar is filled in the gap to form a cement mortar structure 4.
Referring to fig. 4, concrete is poured into the dewatering well 1 to form a dewatering well concrete structure 11.
Referring to fig. 5, a sealing plate 6 is provided, and the sealing plate 6 is covered on the precipitation well 1.
Referring to fig. 5, concrete is poured on the cement mortar structure 4 to form a second concrete structure 32 and the sealing plate 6 and the water-stop steel plate 2 are buried.
Referring to fig. 2, further, the construction method further includes the following steps:
providing a steel sleeve 5, sleeving the steel sleeve 5 on the dewatering well 1, and inserting the bottom of the steel sleeve 5 into the bottom surface of the foundation pit.
The water stop steel plate 2 is sleeved and fixed at the top end of the steel sleeve 5.
Preferably, the welding of the water stop steel plate 2 and the steel sleeve 5 needs double-sided welding, so that the welding construction quality is ensured.
Referring to fig. 2, further, the construction method further includes the steps of:
providing a first waterproof layer 71, laying the first waterproof layer 71 on the bottom surface of the foundation pit, and enabling the first waterproof layer 71 to be turned upwards at the dewatering well 1 and partially wrap the dewatering well 1. Specifically, the first waterproof layer 71 is a waterproof roll.
Referring to fig. 2, further, the construction method further includes the steps of:
and providing a water stopping material, and coating the water stopping material on the joint of the first waterproof layer 71 and the precipitation well 1 and the joint of the first waterproof layer 71 to form a second waterproof layer 72. Specifically, the second waterproof layer 72 is water putty.
Referring to fig. 2, preferably, the construction method further includes the steps of:
and laying a foundation pit leveling layer 8 on the bottom surface of the foundation pit, and laying a first waterproof layer 71 on the foundation pit leveling layer 8.
Referring to fig. 1, in the present embodiment, the construction method further includes the steps of:
excavating the foundation pit to a designed elevation, cleaning the bottom surface of the foundation pit, avoiding garbage, stones or obvious ponding near the dewatering well pipe, and tamping the periphery of the well pipe tightly.
Referring to fig. 4, further, the construction method further includes the following steps:
cutting off the dewatering well 1 on the upper part of the water stop steel plate 2 to enable the top surface of the dewatering well 1, the top surface of the water stop steel plate 2 and the top surface of the steel sleeve 5 to be flush, pumping out water in the dewatering well 1, and pouring concrete in the dewatering well 1 to form a dewatering well concrete structure 11.
Preferably, the construction method further comprises the following steps:
and arranging templates around the dewatering well 1, and pouring concrete to the area formed by enclosing the templates and the foundation pit on the first concrete structure 31 to the elevation of the top surface of the bottom plate.
By adopting the technical scheme, the invention has the following beneficial effects:
according to the invention, the first concrete structure is formed by pouring, so that a gap is reserved between the first concrete structure and the water stop steel plate, and then cement mortar is filled in the gap to fixedly connect the water stop steel plate and the first concrete structure. The cement mortar has a waterproof concept, and further plays a role of water stopping between the water-stopping steel plate and the first concrete structure. The dewatering well made of any material can be sleeved with a steel sleeve to solve the welding problem of the water stop steel plate. The utility model provides a precipitation well has reduced the length of precipitation well according to the elevation of bottom plate, and only needs set up a stagnant water steel sheet in precipitation well top department, and then has reduced the material consumption of precipitation well and stagnant water steel sheet, has practiced thrift construction cost.
Claims (10)
1. The utility model provides a precipitation well closed system, precipitation well locate in the foundation ditch, its characterized in that, closed system includes:
the water stopping steel plate is sleeved and fixed at the top end of the dewatering well;
pouring a first concrete structure which is formed in the foundation pit and is partially embedded in the precipitation well, wherein the elevation of the top surface of the first concrete structure is lower than that of the bottom surface of the water stop steel plate, and a gap is reserved between the first concrete structure and the water stop steel plate;
filling a cement mortar structure formed at the gap, and fixedly connecting the water stop steel plate and the first concrete structure;
pouring a precipitation well concrete structure formed in the precipitation well;
the sealing plate is covered on the dewatering well; and
and a second concrete structure which is formed on the cement mortar structure in a pouring mode and is used for embedding and fixing the water stop steel plate and the sealing plate.
2. The dewatering well closing system according to claim 1, further comprising a steel casing pipe sleeved on the dewatering well and inserted at the bottom of the foundation pit;
the water stop steel plate is sleeved and fixed at the top end of the steel sleeve.
3. The dewatering well closing system according to claim 1, further comprising a first waterproof layer laid on the bottom surface of the foundation pit, wherein the first waterproof layer is turned upwards at the dewatering well and partially wraps the dewatering well.
4. The dewatering well closing system according to claim 3, wherein a second waterproof layer is coated on a joint of the first waterproof layer and the dewatering well and a joint of the first waterproof layer.
5. The dewatering well closure system according to claim 1, further comprising a foundation pit leveling layer laid over the foundation pit floor.
6. The construction method of the dewatering well closed system is characterized by comprising the following steps:
providing a water stopping steel plate, and sleeving and fixing the water stopping steel plate on the top end of the dewatering well;
pouring concrete in the foundation pit to form a first concrete structure and partially burying the precipitation well, so that the elevation of the top surface of the first concrete structure is lower than that of the bottom surface of the water stop steel plate, and a gap is reserved between the first concrete structure and the water stop steel plate;
filling cement mortar into the gap to form a cement mortar structure, and fixedly connecting the water stop steel plate and the first concrete structure by using the cement mortar structure;
pouring concrete in the precipitation well to form a precipitation well concrete structure;
providing a sealing plate, and covering the sealing plate on the dewatering well;
and pouring concrete on the cement mortar structure to form a second concrete structure, and burying and fixing the water stop steel plate and the sealing plate.
7. The construction method of dewatering well closing system as claimed in claim 6, further comprising the steps of:
providing a steel sleeve, sleeving the steel sleeve on the dewatering well, and inserting the bottom of the steel sleeve into the bottom surface of the foundation pit;
and sleeving and fixing the water stop steel plate on the top end of the steel sleeve.
8. The construction method of dewatering well closing system as claimed in claim 6, further comprising the steps of:
and providing a first waterproof layer, paving the first waterproof layer on the bottom surface of the foundation pit, and enabling the first waterproof layer to be upwards turned at the dewatering well and partially wrap the dewatering well.
9. The construction method of dewatering well closing system as claimed in claim 8, further comprising the steps of:
and providing a water stopping material, and coating the water stopping material on the joint of the first waterproof layer and the dewatering well and the joint of the first waterproof layer to form a second waterproof layer.
10. The construction method of dewatering well closing system as claimed in claim 6, further comprising the steps of:
and laying a foundation pit leveling layer on the bottom surface of the foundation pit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011146985.0A CN112302714A (en) | 2020-10-23 | 2020-10-23 | Dewatering well sealing system and construction method thereof |
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| CN202011146985.0A CN112302714A (en) | 2020-10-23 | 2020-10-23 | Dewatering well sealing system and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922213A (en) * | 2022-06-08 | 2022-08-19 | 中冶建工集团有限公司 | Pressure-bearing dewatering well and well sealing construction method thereof |
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| CN104929143A (en) * | 2015-04-27 | 2015-09-23 | 华东交通大学 | Well sealing method of dewatering well at bottom of foundation pit |
| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN210086320U (en) * | 2019-05-24 | 2020-02-18 | 洪城控股集团有限公司 | Anti-floating water drainage well structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114922213A (en) * | 2022-06-08 | 2022-08-19 | 中冶建工集团有限公司 | Pressure-bearing dewatering well and well sealing construction method thereof |
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