CN209723004U - A kind of shut-in well structure of raft plate built-in Precipitation Structure and dewatering well - Google Patents
A kind of shut-in well structure of raft plate built-in Precipitation Structure and dewatering well Download PDFInfo
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- CN209723004U CN209723004U CN201920398448.1U CN201920398448U CN209723004U CN 209723004 U CN209723004 U CN 209723004U CN 201920398448 U CN201920398448 U CN 201920398448U CN 209723004 U CN209723004 U CN 209723004U
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Abstract
A kind of shut-in well structure of raft plate built-in Precipitation Structure and dewatering well, it is related to technical field of building construction, the built-in Precipitation Structure of raft plate, it is set to bottom of foundation ditch, it include gutter, catch pit, well casing, water pump, outer drainpipe and electric wire, the well casing includes no sand filtration water pipe and aqueduct, and no sand filtration water pipe is embedded in catch pit.The shut-in well structure of dewatering well, is set to bottom of foundation ditch, includes gutter, catch pit and well casing, and the well casing includes no sand filtration water pipe and aqueduct.The utility model solves that dewatering well is arranged in local ponding position; it is blocked before underplate concrete pours; then carry out construction of bottom plates; if earth's surface water level is higher, water is larger; the technical issues of cannot carrying out in time underplate concrete when in the presence of closing to pour, causing bottom cushion, waterproof and protective layer due to closing is floated by buoyancy force of underground water by destroying.
Description
Technical field
The utility model relates to technical field of building construction, the built-in Precipitation Structure of specially a kind of raft plate and dewatering well
Shut-in well structure.
Background technique
With the continuous development of building field technology, building is either in the height upwardly extended, or downward
In the depth of extension, all far beyond the horizontal range that can be carried of traditional construction technology.It is embedding with building
Depth is deeper and deeper, and corresponding construction bottom raft plate absolute altitude is also lower and lower, even lower than earth's surface water table aquifer absolute altitude, and due to by
To surrounding environment influence, many engineerings all suffer from submersible in foundation pit.
Traditional base pit dewatering measure mostly uses and water-stop curtain is arranged in foundation pit surrounding, and drop is arranged outside water-stop curtain
Well reduces water level, lower than hole bottom absolute altitude.But due to the viscosity of the soil body, water level is not to be completely maintained in a plane,
The water level at foundation pit center is higher than the water level elevation around the water-stop curtain of foundation pit surrounding always, and the elevator foundation pit in this position
Or the hole bottom absolute altitude of catch pit is again relatively low, so still facing submersible.
It in addition is that a bite dewatering well is arranged in local ponding position to carry out precipitation there are also a kind of dewatering measure, in bottom plate coagulation
Soil is blocked before pouring, and then carries out construction of bottom plates.But if surface water water level is higher, water is larger, closed same
When, it is poured if underplate concrete cannot be carried out in time, bottom cushion, waterproof and protective layer will be will lead to because closing by ground
Lower water buoyancy floats and is destroyed.
Therefore, it is badly in need of finding a kind of easy-to-use dewatering well construction technology, can also be protected while cheating bottom precipitation realizing
Card waterproof slab effect is not destroyed.
Utility model content
The purpose of this utility model is to provide a kind of shut-in well structures of raft plate built-in Precipitation Structure and dewatering well, with solution
Dewatering well certainly is set in local ponding position, is blocked before underplate concrete pours, then carries out construction of bottom plates, if ground
If table water level is higher, water is larger, there are cannot carry out in time underplate concrete when closing to pour, lead to bottom cushion, anti-
Water and protective layer due to closing is floated by buoyancy force of underground water by destroying the technical issues of.
In order to solve the above-mentioned technical problem, the utility model provides a kind of built-in Precipitation Structure of raft plate, is set to foundation pit
Bottom, includes gutter, catch pit, well casing, water pump, outer drainpipe and electric wire, and the well casing includes no sand filtration water pipe and leads
Water pipe, no sand filtration water pipe are embedded in catch pit, and the top of the no sand filtration water pipe is lower than the upper surface in gutter, and aqueduct is set
It sets at the top of no sand filtration water pipe, and the top of the aqueduct exceeds the upper surface in gutter, the top cover of aqueduct is set
There is cover board；
The bottom of no sand filtration water pipe is arranged in the water pump, and outer drainpipe and electric wire connect with water pump and stretch out foundation pit
Outside；
Catch pit graded broken stone is filled in catch pit outside the no sand filtration water pipe；
Gutter graded broken stone, concrete cushion, waterproof are successively equipped in foundation pit outside the aqueduct from the bottom to top
Layer, concrete cover and Base isolation system, the top of the aqueduct are stretched out concrete cover and are embedded in Base isolation system.
Preferably, the Base isolation system includes subfoundation raft plate and upper layer Base isolation system, and the top of the aqueduct is super
The upper surface of subfoundation raft plate out, and be embedded at the top of aqueduct in the Base isolation system of upper layer.
Preferably, bump joint is welded at the top of the aqueduct, the cover board is the flange cooperated with bump joint
Plate.
Preferably, the bottom of the aqueduct is equipped with pedestal, and the aqueduct is located at no sand filtration water pipe by pedestal branch
Top.
Preferably, the water guide pipe outer wall is equipped with seal ring, and the seal ring is located in Base isolation system, and its lower surface
It is contacted with vertically extending section of waterproof layer.
In addition, the utility model additionally provides a kind of shut-in well structure of dewatering well, it is set to bottom of foundation ditch, includes draining
Ditch, catch pit and well casing, the well casing include no sand filtration water pipe and aqueduct, and no sand filtration water pipe is embedded in catch pit, described
The top of no sand filtration water pipe is lower than the upper surface in gutter, and the top of no sand filtration water pipe, and the water guide is arranged in aqueduct
The top of pipe exceeds the upper surface in gutter, and the top cover of aqueduct is equipped with cover board；
It is filled with catch pit graded broken stone in catch pit outside the no sand filtration water pipe, has been poured in the no sand filtration water pipe mixed
Solidifying soil；
Gutter graded broken stone, concrete cushion, waterproof are successively equipped in foundation pit outside the aqueduct from the bottom to top
Layer, concrete cover and Base isolation system, the top of the aqueduct are stretched out concrete cover and are embedded in Base isolation system,
Concrete has been poured in the aqueduct.
Preferably, the Base isolation system includes subfoundation raft plate and upper layer Base isolation system, and the top of the aqueduct is super
The upper surface of subfoundation raft plate out, and be embedded at the top of aqueduct in the Base isolation system of upper layer.
Compared with prior art, it the characteristics of the utility model and has the beneficial effect that
(1) dewatering well in the utility model includes no sand filtration water pipe and aqueduct, after the water extraction in dewatering well, In
It successively constructs in foundation pit concrete cushion, waterproof layer and concrete cover, is then poured on concrete cover from bottom to up
It builds concrete and forms subfoundation raft plate, the upper surface of subfoundation raft plate is lower than the top of aqueduct.Then water pump, In are withdrawn from
Casting concrete in dewatering well, dewatering well is closed.Finally continue casting concrete on subfoundation raft plate and forms upper layer base
Plinth raft plate, the upper surface of upper layer Base isolation system are higher than the top of aqueduct, are embedded in dewatering well permanently in Base isolation system.Tradition is non-
The upper wellbore of build-in type dewatering well is higher than base top absolute altitude, compared to the non-build-in type dewatering well of tradition, the dewatering well aqueduct
Top surface lower than at the top of raft plate, for dewatering well build-in in Base isolation system, top pours with subfoundation raft plate with the impervious of label
Concrete creates conditions.
(2) the non-build-in type dewatering well of tradition, which need to be taken, accordingly cuts gear measure in concrete cushion, waterproof and concrete protective
The correspondence poling position reserved opening of layer also needs after later period poling the aqueduct for taking reinforcement measure to guarantee to stablize, while needing pair
Gap secondary plugging between reserving hole and aqueduct.And the built-in dewatering well node one-off construction of raft plate of the utility model
It completes, without reserving early period in placement, avoids secondary plugging.Meanwhile making full use of concrete cushion, waterproof and the coagulation of bottom plate
The construction measures such as protective soil layer make the stability of itself meet construction requirement, are not necessarily in addition to metal aqueduct and without sand filtration water pipe
Do other investments.
(3) the non-shallower pit shaft of build-in type dewatering well of tradition is shorter, and the built-in dewatering well of raft plate of the utility model is oriented
Upper extension can accommodate more water.When water in catch pit can escalate, the built-in drop of raft plate of the utility model
Well can accommodate more water, can reserve the sufficient time before water spilling, construction personnel can be irrigated coagulation
Soil, flange plate plugging construction.The capacity of the built-in dewatering well of raft plate of the utility model is big, drainage measure is abundant, water pump choosing
Type is more and construction measure is simple, and can be widely applied to various same types need to carry out the foundation pit of precipitation, makes up water-stop curtain precipitation
The shortcomings that being unable to reach construction requirement meets the needs of when each engineering surface water water level or less is constructed.
(4) the built-in dewatering well anti-permeability performance of the raft plate of the utility model is excellent, takes the five impervious measures of weight: first,
Filling and Base isolation system can play blocking effect to lower part water with the water-tight concrete of match ratio inside dewatering well.Second,
It is blocked using flange plate, reduces hidden leakage defect.Third, dewatering well itself have seal ring, can play to water route
Blocking effect.4th, waterproof layer winds expansion sealing strip outside the waterproof roll of pipe root position, reinforces after upper volume water guide tube wall
Water proof structure measure.5th, entire dewatering well is in Base isolation system water-tight concrete, aqueduct top concreting thickness
Meet seepage resistance demand.
(5) dewatering well of the utility model is in concrete cushion, waterproof layer, concrete cover, reinforcing bar binding, concrete
The effect for persistently playing in whole process and surface water water level being effectively reduced is poured, so that entire work progress is in anhydrous state, just
Waterproof material is not destroyed in construction and.It is then closed after bottom slab concreting reaches certain altitude, at this time concrete gravity energy
The buoyancy for enough overcoming earth's surface diving to generate, protects waterproof not to be destroyed.
(6) the built-in dewatering well of raft plate of the utility model is after installing no sand filtration water pipe and aqueduct, then constructs mixed
Solidifying soil padding, waterproof layer and concrete cover are not needed in concrete cushion, waterproof layer, concrete cover and basic raft
The integral coherence of reserving hole on plate, structure is good, and anti-permeability performance is more preferable.
Detailed description of the invention
Fig. 1 is the built-in dewatering well nodes of locations floor map of raft plate.
Fig. 2 is the schematic diagram of A-A section in Fig. 1.
Fig. 3 is the structural schematic diagram of aqueduct.
Fig. 4 is the schematic diagram of the shut-in well structure of dewatering well.
Fig. 5 is the schematic diagram when construction of subfoundation raft plate is completed.
Fig. 6 is schematic diagram when dewatering well is closed.
Fig. 7 is schematic diagram when Base isolation system construction in upper layer is completed.
Attached drawing mark: 1- is without sand filtration water pipe, 2- aqueduct, 21- pedestal, 22- seal ring, 3- cover board, 4- catch pit, 5- row
Ditch, 6- water pump, the outer drainpipe of 7- and electric wire, 8- catch pit graded broken stone, the gutter 9- graded broken stone, 10- concrete cushion,
11- waterproof layer, 12- concrete cover, 13- Base isolation system, 131- subfoundation raft plate, the upper layer 132- Base isolation system, 14- are swollen
Swollen sealing rod, 15- bump joint.
Specific embodiment
To make technological means of the utility model, character of innovation, reaching purpose and effect is easy to understand, below
The present invention will be further described.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, be it is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be public based on the claim of this application book and specification institute
For the content opened using obvious other technical solutions, these technical solutions include using doing to the embodiment recorded herein
The technical solution of any obvious substitutions and modifications out.
As shown in Figures 1 to 3, a kind of built-in Precipitation Structure of raft plate, is set to bottom of foundation ditch, includes gutter (5), collection
Puddle (4), well casing, water pump (6), outer drainpipe and electric wire (7).Well casing includes no sand filtration water pipe (1) and aqueduct (2), no sand
Filter pipe (1) is embedded in catch pit (4), and the top of no sand filtration water pipe (1) is lower than the upper surface of gutter (5).
Aqueduct (2) can be used as the temporary drainage path of outer drainpipe, may be simultaneously used for water pump (6) before removing pump
Maintenance and taking-up channel.The bottom of aqueduct (2) is equipped with pedestal (21), and aqueduct (2) is located at nothing by pedestal (21) branch
The top of sand filtration water pipe (1).The top of aqueduct (2) exceeds the upper surface of gutter (5), and aqueduct is welded at the top of (2)
The top cover of bump joint (15), aqueduct (2) is equipped with cover board (3).Cover board (3) is the flange cooperated with bump joint (15)
Plate.Such as welded using steel plate, it is necessary first to professional's operation, secondly as weld interval is longer, it is enough to be stayed to welding
Sufficient weld interval, thus subfoundation raft plate (131) pour height it is lower when will stop precipitation and start to weld, pour height
It is irresistibly lauched generated buoyancy, is likely to result in concrete cushion (10), waterproof layer (11), concrete cover
(12) it destroys.Therefore, flanged plate is compared with steel plate, and install convenient is easy for construction, does not require professional welder to operate, and can
Concrete cushion (10), waterproof layer (11), concrete cover (12) is effectively protected not to be destroyed.Water pump (6) is arranged in nothing
The bottom of sand filtration water pipe (1), outer drainpipe and electric wire (7) connect with water pump (6) and stretch out outside foundation pit.The pump housing of water pump (6)
Size is less than aqueduct (2) and the internal diameter without sand filtration water pipe (1) can repair in time if water pump (6) breaks down,
And can be taken out water pump (6) before aqueduct (2) and without sand filtration water pipe (1) closing, water pump (6) can recycle, and subtract
Few unnecessary investment, save the cost.
It is filled with catch pit graded broken stone (8) in the catch pit (4) of no sand filtration water pipe (1) outside, forms water-flowing path aqueduct
(2) gutter graded broken stone (9) is successively equipped in foundation pit outside from the bottom to top, concrete cushion (10), waterproof layer (11), is mixed
Solidifying protective soil layer (12) and Base isolation system (13), aqueduct (2) outer wall are equipped with seal ring (22), and seal ring (22) is located at basic raft
In plate (13), and vertically extending section of its lower surface and waterproof layer (11) contacts.Construction joint is weak link, work progress
In, water flow may prolong the intrusion of the path between cylinder barrel outer wall and concrete Base isolation system (13), and after welding seal ring (22),
Water flow plays the role of increasing flesh flow path.When flow path long enough, water-stagnating effect can be played.Waterproof layer (11) corner
Locate the side far from aqueduct (2) and is equipped with expansion sealing strip (14).Concrete cover (12) are stretched out simultaneously in the top of aqueduct (2)
And it is embedded in Base isolation system (13).Base isolation system (13) includes subfoundation raft plate (131) and upper layer Base isolation system (132), is led
The top of water pipe (2) exceeds the upper surface of subfoundation raft plate (131), and upper layer basis raft is embedded at the top of aqueduct (2)
In plate (132).The thickness of subfoundation raft plate (131) is about 1m.
The built-in Precipitation Structure of raft plate can apply any position in foundation pit, not by the limit of foundation depth and region
System.And all material is prefabricated in the factory, and scene is without cutting, and no waste mine generates, economical and eco-friendly environmental protection.
As shown in figure 4, a kind of shut-in well structure of dewatering well, is set to bottom of foundation ditch, it include gutter (5), catch pit
(4) and well casing.Well casing includes no sand filtration water pipe (1) and aqueduct (2), and no sand filtration water pipe (1) is embedded in catch pit (4), nothing
The top of sand filtration water pipe (1) is lower than the upper surface of gutter (5), and aqueduct (2) is arranged at the top of no sand filtration water pipe (1), and
And the top of aqueduct (2) exceeds the upper surface of gutter (5), the top cover of aqueduct (2) is equipped with cover board (3).
It is filled with catch pit graded broken stone (8) in the catch pit (4) of no sand filtration water pipe (1) outside, is poured in no sand filtration water pipe (1)
There is concrete.It is successively equipped with gutter graded broken stone (9), concrete cushion from the bottom to top in the foundation pit of aqueduct (2) outside
(10), concrete protective is stretched out on the top of waterproof layer (11), concrete cover (12) and Base isolation system (13), aqueduct (2)
Layer and is embedded in Base isolation system (13) (12), and aqueduct has poured concrete in (2).Base isolation system (13) includes subfoundation
Raft plate (131) and upper layer Base isolation system (132), the top of aqueduct (2) exceed the upper surface of subfoundation raft plate (131), and
And it is embedded at the top of aqueduct (2) in upper layer Base isolation system (132).
As shown in Fig. 5~7, the shut-in well method of above-mentioned precipitation well construction the following steps are included:
Step 1: reserved earthing determines catch pit (4) and gutter (5) by design position unwrapping wire after excavation of foundation pit
Position.
Step 2: excavating catch pit (4) and gutter (5), gutter (5) look for slope 1%, catch pit to catch pit (4) direction
(4) hole bottom makes catch pit (4) have the function of charge for remittance compared with the low 500mm of bottom of trench or so of gutter (5).
Step 3: the bottom of catch pit (4) will be placed on without sand filtration water pipe (1), in the catch pit of no sand filtration water pipe (1) outside
(4) water pump (6) is placed on no sand filtration to will be fixed temporarily without sand filtration water pipe (1) by backfill catch pit graded broken stone (8) in
Outer drainpipe and electric wire (7) are connect by the bottom of water pipe (1) with water pump (6).
Step 4: aqueduct (2) to be placed on to the top of no sand filtration water pipe (1), in the gutter (5) of aqueduct (2) outside
Middle backfill gutter graded broken stone (9), to be fixed temporarily by aqueduct (2) and without sand filtration water pipe (1).
Step 5: starting water pump (6) makes water level in hole bottom absolute altitude 500mm or less for outside the water discharge foundation pit in foundation pit.
Step 6: further excavating, remove after reserving earthing in foundation pit, in the foundation pit of aqueduct (2) outside from the bottom to top
Successively it is laid with concrete cushion (10), waterproof layer (11) and concrete cover (12).It is laid with gutter graded broken stone (9), mixes
When solidifying soil padding (10), waterproof layer (11) and concrete cover (12), water pump (6) is continued working, and makes water level in hole bottom absolute altitude
500mm or less.
Step 7: casting concrete forms subfoundation raft plate on the concrete cover (12) of aqueduct (2) outside
(131), subfoundation raft plate (131) pours depending on height regards live water level actual conditions, guarantees concreting generation
Gravity is enough to resist the concrete cushion (10) of the position, waterproof layer (11), concrete cover (12) since height of water level draws
The buoyancy risen, so that concrete cushion (10), waterproof layer (11), concrete cover (12) be avoided to be destroyed.
Step 8: switching off the pump (6), outer drainpipe and electric wire (7) and water pump (6) are withdrawn from, in aqueduct (2) and without sand filtration
Casting concrete in water pipe (1) is then closed aqueduct (2) with cover board (3).Aqueduct (2) and without in sand filtration water pipe (1) mix
The proportion for coagulating soil is identical as the concrete proportioning of Base isolation system (13).It can be with before aqueduct (2) and without sand filtration water pipe (1) closing
Water pump (6) is overhauled at any time.
Step 9: continuing casting concrete in the foundation pit of aqueduct (2) outside forms upper layer Base isolation system (132), make to lead
Water pipe (2) is embedded in Base isolation system (13).
The shut-in well method of the dewatering well is particularly suitable for that level of ground water is higher, the construction of the biggish dewatering well of water.
Above embodiment is only that preferred embodiments of the present invention are described, not to the utility model
Range be defined, under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this is practical
The various changes and improvements that novel technical solution is made should all fall into the protection scope that the utility model claims book determines
It is interior.
Claims (7)
- It include gutter (5), catch pit (4), well casing, water 1. a kind of built-in Precipitation Structure of raft plate, is set to bottom of foundation ditch Pump (6), outer drainpipe and electric wire (7), it is characterised in that:The well casing includes no sand filtration water pipe (1) and aqueduct (2), and no sand filtration water pipe (1) is embedded in catch pit (4), described The top of no sand filtration water pipe (1) is lower than the upper surface of gutter (5), and aqueduct (2) is arranged at the top of no sand filtration water pipe (1), And the top of the aqueduct (2) exceeds the upper surface of gutter (5), and the top cover of aqueduct (2) is equipped with cover board (3)；Water pump (6) setting connect and stretches with water pump (6) in the bottom of no sand filtration water pipe (1), outer drainpipe and electric wire (7) Out outside foundation pit；Catch pit graded broken stone (8) are filled in the catch pit (4) of the no sand filtration water pipe (1) outside；It is successively equipped with gutter graded broken stone (9), concrete cushion from the bottom to top in the foundation pit of the aqueduct (2) outside (10), concrete is stretched out on the top of waterproof layer (11), concrete cover (12) and Base isolation system (13), the aqueduct (2) It protective layer (12) and is embedded in Base isolation system (13).
- 2. a kind of built-in Precipitation Structure of raft plate according to claim 1, it is characterised in that: Base isolation system (13) packet Subfoundation raft plate (131) and upper layer Base isolation system (132) are included, the top of the aqueduct (2) exceeds subfoundation raft plate (131) upper surface, and be embedded in upper layer Base isolation system (132) at the top of aqueduct (2).
- 3. a kind of built-in Precipitation Structure of raft plate according to claim 2, it is characterised in that: the top of the aqueduct (2) Portion is welded with bump joint (15), and the cover board (3) is the flanged plate cooperated with bump joint (15).
- 4. a kind of built-in Precipitation Structure of raft plate according to claim 2, it is characterised in that: the bottom of the aqueduct (2) Portion is equipped with pedestal (21), and the aqueduct (2) is located at the top of no sand filtration water pipe (1) by pedestal (21) branch.
- 5. a kind of built-in Precipitation Structure of raft plate according to claim 2, it is characterised in that: aqueduct (2) outer wall Equipped with seal ring (22), the seal ring (22) is located in Base isolation system (13), and its lower surface and waterproof layer (11) is perpendicular It is contacted to extended segment.
- It include gutter (5), catch pit (4) and well casing 6. a kind of shut-in well structure of dewatering well, is set to bottom of foundation ditch, It is characterized in that:The well casing includes no sand filtration water pipe (1) and aqueduct (2), and no sand filtration water pipe (1) is embedded in catch pit (4), described The top of no sand filtration water pipe (1) is lower than the upper surface of gutter (5), and aqueduct (2) is arranged at the top of no sand filtration water pipe (1), And the top of the aqueduct (2) exceeds the upper surface of gutter (5), and the top cover of aqueduct (2) is equipped with cover board (3)；It is filled with catch pit graded broken stone (8) in the catch pit (4) of the no sand filtration water pipe (1) outside, in the no sand filtration water pipe (1) Concrete is poured；It is successively equipped with gutter graded broken stone (9), concrete cushion from the bottom to top in the foundation pit of the aqueduct (2) outside (10), concrete is stretched out on the top of waterproof layer (11), concrete cover (12) and Base isolation system (13), the aqueduct (2) It protective layer (12) and is embedded in Base isolation system (13), has poured concrete in the aqueduct (2).
- 7. a kind of shut-in well structure of dewatering well according to claim 6, it is characterised in that: the Base isolation system (13) includes The top of subfoundation raft plate (131) and upper layer Base isolation system (132), the aqueduct (2) exceeds subfoundation raft plate (131) Upper surface, and be embedded in upper layer Base isolation system (132) at the top of aqueduct (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398448.1U CN209723004U (en) | 2019-03-27 | 2019-03-27 | A kind of shut-in well structure of raft plate built-in Precipitation Structure and dewatering well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398448.1U CN209723004U (en) | 2019-03-27 | 2019-03-27 | A kind of shut-in well structure of raft plate built-in Precipitation Structure and dewatering well |
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| CN209723004U true CN209723004U (en) | 2019-12-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898533A (en) * | 2019-03-27 | 2019-06-18 | 中建一局集团第二建筑有限公司 | The built-in Precipitation Structure of raft plate, the shut-in well structure of dewatering well and shut-in well method |
| CN111236283A (en) * | 2020-01-06 | 2020-06-05 | 南通八建集团有限公司 | Local continuous precipitation method for deep foundation pit water collection pit |
| CN115075276A (en) * | 2022-07-01 | 2022-09-20 | 中交路桥建设有限公司 | Foundation pit underground water collection structure and foundation pit bottom sealing construction method |
-
2019
- 2019-03-27 CN CN201920398448.1U patent/CN209723004U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898533A (en) * | 2019-03-27 | 2019-06-18 | 中建一局集团第二建筑有限公司 | The built-in Precipitation Structure of raft plate, the shut-in well structure of dewatering well and shut-in well method |
| CN109898533B (en) * | 2019-03-27 | 2024-01-23 | 中建一局集团第二建筑有限公司 | Raft plate built-in precipitation structure, well sealing structure of precipitation well and well sealing method |
| CN111236283A (en) * | 2020-01-06 | 2020-06-05 | 南通八建集团有限公司 | Local continuous precipitation method for deep foundation pit water collection pit |
| CN115075276A (en) * | 2022-07-01 | 2022-09-20 | 中交路桥建设有限公司 | Foundation pit underground water collection structure and foundation pit bottom sealing construction method |
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