CN203174616U - Clay foundation rain falling and water saving system - Google Patents

Clay foundation rain falling and water saving system Download PDF

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Publication number
CN203174616U
CN203174616U CN 201320159825 CN201320159825U CN203174616U CN 203174616 U CN203174616 U CN 203174616U CN 201320159825 CN201320159825 CN 201320159825 CN 201320159825 U CN201320159825 U CN 201320159825U CN 203174616 U CN203174616 U CN 203174616U
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CN
China
Prior art keywords
conduit
precipitation
foundation
water
collecting well
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320159825
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Chinese (zh)
Inventor
史建峰
熊业亮
杨静
付国松
封玉堃
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China State Construction Engineering Corp Ltd CSCEC
CSCEC City Construction Development Co Ltd
Original Assignee
China State Construction Engineering Corp Ltd CSCEC
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Priority to CN 201320159825 priority Critical patent/CN203174616U/en
Application granted granted Critical
Publication of CN203174616U publication Critical patent/CN203174616U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a clay foundation rain falling and water saving system. The clay foundation rain falling and water saving system is distributed in a clay foundation range and comprises blind ditches, water collecting wells and recycle settling ponds, wherein the recycle settling ponds are connected with the water collecting wells, the blind ditches are respectively arranged at the bottom lower sides of plan-to-cast ground beams in a horizontal direction and a vertical direction, the water collecting wells are sequentially arranged beside foundation platforms above junction positions of each blind ditch, a mesh-shaped water drainage structure is formed as the water collecting wells are communicated with the blind ditches through communication ditches, the water collecting wells are internally and intermediately provided with corrugated pipes which are as high as the well walls of the water collecting wells in the vertical direction, the corrugated pipes are internally provided with rain falling guide pipes which are higher than the well walls of the water collecting wells, the rain falling guide pipes are internally provided with water pumps, the water pumps are connected with water collecting pipelines, and the water collecting pipelines stretch out of the well walls of the water collecting wells and are communicated with the recycle settling ponds. According to the clay foundation rain falling and water saving system disclosed by the utility model, the technical problem that rain falling cannot effectively be carried out or rain falling amount is too much under a clay foundation environment in an existing rain falling scheme, and thus underground water is wasted is solved.

Description

A kind of clay foundation precipitation water-saving system
Technical field
The utility model relates to cover ground precipitation a water-saving system, particularly a kind of precipitation water-saving system for clay foundation.
Background technology
For a long time, invade in a large number for fear of the face of land and underground water, cause ground to soak or problem such as stratum distortion occurs piping, quicksand, bottom heave, hole outside, before basement in high rise building was constructed, known precipitation scheme was to take well-points dewatering.But be the foundation ditch of clay for foundation soil, because the clay pervasion rate is low, in order to reach the precipitation purpose, often needs to encrypt the well point and arrange, strengthen well point length, thereby cause a large amount of underground water to be extracted, cause the groundwater resources waste.For the conserve water resource, the Ministry of Construction has promulgated " green construction guide rule ", requires foundation pit dewatering groundwater abstraction as few as possible, when excavation of foundation pit pump-out during greater than 50 ten thousand steres, should carry out underground recharging, and avoid underground water contaminated.
The utility model content
The purpose of this utility model provides a kind of clay foundation precipitation water-saving system, solve existing precipitation scheme can not effective precipitation under the clay foundation environment or precipitation too much, cause the technical problem of the deficiency of underground water waste.
For achieving the above object, the utility model adopts following technical scheme:
A kind of clay foundation precipitation water-saving system, be distributed in the clay foundation scope, comprise covered conduit, collecting well and the recovery sedimentation basin that links to each other with collecting well, described covered conduit cross section is rectangle, be separately positioned on horizontal stroke, intend building the bottom downside of grade beam on the vertical both direction, the width of described covered conduit is not more than the width of intending building grade beam, described collecting well is disposed on the next door of the foundation platform of each covered conduit intersection top successively, collecting well is communicated with covered conduit and reticulates discharge structure by being communicated with ditch, the bottom of trench absolute altitude of described connection ditch is identical with the bottom of trench absolute altitude of covered conduit, all fill up gravel in the ditch of described covered conduit and connection ditch, described covered conduit, the top surface that is communicated with ditch and collecting well all is equipped with the film separation layer, built foundation pad on the film separation layer of described connection ditch and collecting well, built the grade beam bed course on the film separation layer of described covered conduit, build the brick loose tool of grade beam on the described grade beam bed course by laying bricks or stones, built foundation pad on the described brick loose tool
Vertically be placed with the collecting well borehole wall with high bellows between two parties in the well of described collecting well, the tube wall outside of described bellows has also swathed screen pack, around the tube wall of bellows, fill up gravel in the collecting well scope, be provided with the precipitation conduit that exceeds the collecting well borehole wall in the pipe of described bellows, the tube wall of described bellows and precipitation conduit is positioned at the following part of foundation pad and all is drilled with quincunx presbyopia, be filled with sealant in the slit between described bellows and the precipitation conduit, be placed with water pump in the described precipitation conduit, described water pump links to each other with the pipeline that catchments, and the described pipeline that catchments stretches out the collecting well borehole wall and is communicated to the recovery sedimentation basin.
The tube wall of the described precipitation conduit outside, be positioned at the foundation pad scope, along the circumferential direction be the radial L shaped spacer bars of a circle that is welded with, the vertical edge of described spacer bars vertically and be close to the tube wall of precipitation conduit, the horizontal edge level stretches in the foundation pad.
Described precipitation conduit uses steel pipe manufacturing, and diameter is not less than 230mm.
Described spacer bars along the circumferential direction welds 3 at least.
The tube wall of the described precipitation conduit outside, be positioned at the sole plate scope, along the upper and lower two circle sealing wing rings that are welded with of tube wall length direction, be respectively sealing wing ring and following sealing wing ring.
Inner corner trim place between the concrete of described precipitation conduit and foundation pad is provided with the waterproof extra play.
Be equipped with waterproofing course on the described foundation pad, be equipped with concrete fish tail and waterproof layer on the described waterproofing course, built sole plate on the described fish tail and waterproof layer.
The top mark height of described precipitation conduit is lower than the high 50mm of top mark of sole plate at least.
The end absolute altitude of described collecting well is deeper than the end absolute altitude 500mm of covered conduit at least.
The mesh size of described screen pack is 60~80 orders.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model provides a kind of precipitation water-saving system, this system can not only realize that effective dewatering makes its control at predetermined absolute altitude, and possesses the effect that easy construction, cost are low, the duration is short, compare the sequence of construction of excavating behind traditional first precipitation, precipitation is to carry out after soil excavation is finished, do not influence the construction of sole plate in the time of precipitation, thereby shortened construction period.
The utility model uses soil excavation machinery to finish the construction of collecting well, has saved mechanical drilling well before the soil excavation and the operation of well point pipe is set with respect to conventional art, thereby saved cost.
The utility model arranges covered conduit, is communicated with the collecting well that arranges by ditch and the covered conduit intersection by the grade beam bottom, makes underground water form the network that connects, thereby has avoided because the risk of descending the harmful ground of water enchroachment (invasion) partly that the geology inequality causes.
The utility model is because the mode that covered conduit and collecting well combine has improved the clay foundation precipitation efficiency; thereby avoided the brill deep-well reducing the phreatic while of top layer; extracted deep phreatic water; reduce phreatic extraction amount; reduce phreatic loss; the conserve water resource is conducive to energy conservation and environmental protection.Simultaneously, the underground water of extraction has improved the utilization rate at non-traditional water source through precipitating recyclable flushing vehicle, concrete curing, the place depositing dust etc. of being used in.
The utility model has welded spacer bars in advance on the tube wall of precipitation conduit, conduit is fixed in the foundation pad scope, upper and lower sealing wing ring can make percolating water intercept under sole plate, and the waterproof ability that has all strengthened structure that arranges of waterproof extra play is that later working procedure is laid a solid foundation.
The utility model can be widely used in the clay foundation dewatering construction.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is the layout schematic diagram of covered conduit and collecting well at the bottom of the utility model beam.
Fig. 2 is the structural representation of A-A section among Fig. 1.
Fig. 3 is the structural representation that spacer bars and upper and lower sealing wing ring are welded in the precipitation duct wall outside among Fig. 2.
Fig. 4 is the plan structure schematic diagram of Fig. 3.
Fig. 5 is the structural representation of precipitation conduit shutoff.
Reference numeral: 1-intends building grade beam; the 2-covered conduit; 3-is communicated with ditch; the 4-collecting well; the 5-foundation platform; the 6-gravel; 7-film separation layer; the 8-bellows; the 9-water pump; the 10-foundation pad; 11-brick loose tool; the 12-spacer bars; sealing wing ring under the 13-; the last sealing wing of 14-ring; 15-precipitation conduit; the 16-sealant; the 17-medium coarse sand; the 18-waterproofing course; the 19-fish tail and waterproof layer; the 20-sole plate; the 21-sealing agent; the 22-slightly expanded concrete; the 23-steel deck-plate; the 24-pipeline that catchments; 25-reclaims sedimentation basin; 26-grade beam bed course.
The specific embodiment
Embodiment is referring to shown in Fig. 1-4, a kind of clay foundation precipitation water-saving system, be distributed in the clay foundation scope, comprise covered conduit 2, collecting well 4 and the recovery sedimentation basin 25 that links to each other with collecting well 4, described covered conduit 2 cross sections are rectangle, be separately positioned on horizontal stroke, intend building the bottom downside of grade beam 1 on the vertical both direction, the width of described covered conduit 2 is not more than the width of intending building grade beam 1, described collecting well 4 is disposed on the next door of the foundation platform 5 of each covered conduit 2 intersections top successively, collecting well 4 is communicated with covered conduit 2 and reticulates discharge structure by being communicated with ditch 3, the bottom of trench absolute altitude of described connection ditch 3 is identical with the bottom of trench absolute altitude of covered conduit 2, all fill up gravel 6 in the ditch of described covered conduit 2 and connection ditch 3, described covered conduit 2, the top surface that is communicated with ditch 3 and collecting well 4 all is equipped with film separation layer 7, built foundation pad 10 on the film separation layer 7 of described connection ditch 3 and collecting well 4, built grade beam bed course 26 on the film separation layer 7 of described covered conduit 2, described ground beam pad (is built the brick loose tool 11 of grade beam by laying bricks or stones on 26, built foundation pad 10 on the described brick loose tool 11, the size of described film separation layer 7 should satisfy each limit size all above covered conduit, be communicated with the sectional dimension of ditch and collecting well, every limit is long 150mm all.
Vertically be placed with the collecting well borehole wall with high bellows 8 between two parties in the well of described collecting well 4, the tube wall outside of described bellows 8 has also swathed screen pack, around the tube wall of bellows 8, fill up gravel 6 in the collecting well scope, be provided with the precipitation conduit 15 that exceeds the collecting well borehole wall in the pipe of described bellows 8, the tube wall of described bellows and precipitation conduit is positioned at the following part of foundation pad and all is drilled with quincunx presbyopia, be filled with sealant 16 in the slit between described bellows 8 and the precipitation conduit 15, be placed with water pump 9 in the described precipitation conduit 15, described water pump 9 links to each other with the pipeline 24 that catchments, and the described pipeline 24 that catchments stretches out the collecting well borehole wall and is communicated to and reclaims sedimentation basin 25.
The tube wall of described precipitation conduit 15 outside, be positioned at foundation pad 10 scopes, along the circumferential direction be radial and be welded with one and enclose L shaped spacer bars 12, the vertical edge of described spacer bars 12 is vertical and be close to the tube wall of precipitation conduit 15, and the horizontal edge level stretches in the foundation pad 10.
Described spacer bars 12 along the circumferential direction welds 3 at least.
The tube wall of described precipitation conduit 15 outside, be positioned at sole plate 20 scopes, along the upper and lower two circle sealing wing rings that are welded with of tube wall length direction, be respectively sealing wing ring 13 and following sealing wing ring 14.
Be equipped with waterproofing course 18 on the described foundation pad 10, be equipped with concrete fish tail and waterproof layer 19 on the described waterproofing course 18, built sole plate 20 on the described fish tail and waterproof layer 19.
Inner corner trim place between the concrete of described precipitation conduit 15 and foundation pad 10 is provided with the waterproof extra play.
The top mark height of described precipitation conduit 15 is lower than the high 50mm of top mark of sole plate 20 at least.
The end absolute altitude of described collecting well 4 is deeper than the end absolute altitude 500mm of covered conduit 2 at least.
The mesh size of described screen pack is 60~80 orders.
The job practices of present embodiment is as follows:
Step 1: referring to Fig. 1, after grade beam 1 and foundation platform 5 were excavated to the substrate absolute altitude, at grade beam 1 bottom excavation covered conduit 2, described covered conduit size and arrangement pitch were determined as calculated according to the foundation ditch water yield, the cross section of covered conduit is square in the present embodiment, wide 300mm, dark 300mm; On the next door of covered conduit joining in length and breadth every a mode of one of establishing collecting well 4 to be set, collecting well planar dimension 1m * 1m, its degree of depth is for being designed to ground depth of beam-sole plate thickness+waterproofing protection layer thickness+foundation pad thickness+300mm+500mm, wherein 300mm is the degree of depth of covered conduit, and the end absolute altitude of collecting well 4 is deeper than the end absolute altitude 500mm of covered conduit 2; Covered conduit 2 is connected by being communicated with ditch 3 with collecting well 4, and it is identical with absolute altitude at the bottom of the covered conduit to be communicated with the bottom of trench absolute altitude.
Step 2: referring to shown in Figure 2, fill gravels 6 in covered conduit 2, connection ditch 3 and the collecting well 4, gravel answers grating good, backfill is closely knit, vertically place bellows 8 in collecting well 4 centers, the top mark of bellows 8 is high concordant with the absolute altitude of blinding concrete, swathes close mesh filter screen outside the bellows 8; Place water pump 9 in the bellows 8 and carry out precipitation, underground water is transported to by the pipeline 24 that catchments and reclaims sedimentation basin 25, and the underground water that reclaims in the sedimentation basin is recycled through three grades of post precipitations.
Step 3: after realizing preliminary precipitation, above covered conduit 2, connection ditch 3 and collecting well 4, all lay plastic sheeting separation layer 7, be communicated with the foundation pad 10 of building on the film separation layer 7 of ditch 3 and collecting well 4, build grade beam bed course 26 on the film separation layer 7 of covered conduit, build brick fetal membrane 11 by laying bricks or stones at grade beam bed course 26, at brick fetal membrane 11 top-pour underpin bed courses 10.
Step 4: place diameter less than the precipitation conduit 12 of bellows 8 in bellows 8, described precipitation conduit can use steel pipe manufacturing, directly is not less than 230mm, should be able to satisfy the requirement of placing water pump within it; The design length of precipitation conduit 12 is: collecting well 4 degree of depth+foundation pad 10 thickness+fish tail and waterproof layer 19 thickness+sole plate 20 thickness-50mm, and wherein 50mm represents that the top mark height of precipitation conduit 15 is in the high 50mm of top mark of sole plate 20; Slit between precipitation conduit 12 and bellows 8 upper end packing seal 16 can use the plug flax silk to add ointment and do sealant 16 to carry out shutoff closely knit in the present embodiment.
Step 5: shown in Fig. 2-4, the tube wall of precipitation conduit 15 outside, be positioned at foundation pad 10 scopes, along the circumferential direction be radial and be welded with one and enclose L shaped spacer bars 12, the vertical edge of described spacer bars 12 is vertical and be close to the tube wall of precipitation conduit 15, the horizontal edge level stretches in the foundation pad 10, vertical edge be close to the precipitation conduit be when preventing follow-up paving waterproof roll can't on turn over; The tube wall of precipitation conduit 15 outside, be positioned at sole plate 20 scopes, along upper and lower sealing wing ring 13 and the following sealing wing ring 14 of being welded with respectively of tube wall length direction, in the present embodiment under 100mm place welding above 20 end of the sole plate absolute altitude sealing wing ring 13, sealing wing ring 14 in 100mm place welding below the sole plate 20 top mark height, the interior ring inboard of sealing wing ring and the equal full weld in the outside of tube wall.
Step 6: referring to shown in Figure 5; build foundation pad 10; waterproofing course 18, fish tail and waterproof layer 19 and sole plate 20 successively on foundation pad 10, waterproofing course 18 is along turning on the tube wall of precipitation conduit 15, until the following sealing wing ring 13 places sealing that precipitation conduit 15 arranges in the sole plate scope.
Step 7: precipitation and step 6 are carried out simultaneously, treat that building load reaches designing requirement after, stop precipitation; From the precipitation conduit, take out water pump 9, in precipitation conduit 12, fill medium coarse sand 17 to foundation pad 10 absolute altitudes, it is moistening then sealing agent 21 to be dipped in water, rub into pie, be pressed in the precipitation conduit on the medium-sand seam 17, in precipitation conduit 12, build then than the slightly expanded concrete 22 of the high strength grade of the sole plate top mark height to precipitation conduit 15.After 23 shutoff of precipitation conduit 12 welded top steel deck-plates, build on the steel deck-plate 23 more concordant with sole plate 20 top mark height than the slightly expanded concrete 22 of the high strength grade of sole plate, thereby finish shut-in well.

Claims (10)

1. clay foundation precipitation water-saving system, be distributed in the clay foundation scope, it is characterized in that: comprise covered conduit (2), collecting well (4) and the recovery sedimentation basin (25) that links to each other with collecting well (4), described covered conduit (2) cross section is rectangle, be separately positioned on horizontal stroke, intend building the bottom downside of grade beam (1) on the vertical both direction, the width of described covered conduit (2) is not more than the width of intending building grade beam (1), described collecting well (4) is disposed on the next door of the foundation platform (5) of each covered conduit (2) intersection top successively, collecting well (4) is communicated with covered conduit (2) and reticulates discharge structure by being communicated with ditch (3), the bottom of trench absolute altitude of described connection ditch (3) is identical with the bottom of trench absolute altitude of covered conduit (2), all fill up gravel (6) in the ditch of described covered conduit (2) and connection ditch (3), described covered conduit (2), the top surface that is communicated with ditch (3) and collecting well (4) all is equipped with film separation layer (7), built foundation pad (10) on the film separation layer (7) of described connection ditch (3) and collecting well (4), built grade beam bed course (26) on the film separation layer (7) of described covered conduit (2), build the brick loose tool (11) of grade beam on the described grade beam bed course (26) by laying bricks or stones, built foundation pad (10) on the described brick loose tool (11)
Vertically be placed with the collecting well borehole wall with high bellows (8) between two parties in the well of described collecting well (4), the tube wall outside of described bellows (8) has also swathed screen pack, around the tube wall of bellows (8), fill up gravel (6) in the collecting well scope, be provided with the precipitation conduit (15) that exceeds the collecting well borehole wall in the pipe of described bellows (8), the tube wall of described bellows and precipitation conduit is positioned at the following part of foundation pad and all is drilled with quincunx presbyopia, be filled with sealant (16) in the slit between described bellows (8) and the precipitation conduit (15), be placed with water pump (9) in the described precipitation conduit (15), described water pump (9) links to each other with the pipeline that catchments (24), and the described pipeline that catchments (24) stretches out the collecting well borehole wall and is communicated to and reclaims sedimentation basin (25).
2. a kind of clay foundation precipitation water-saving system according to claim 1 is characterized in that: described precipitation conduit (15) uses steel pipe manufacturing, and diameter is not less than 230mm.
3. a kind of clay foundation precipitation water-saving system according to claim 1, it is characterized in that: the tube wall of described precipitation conduit (15) outside, be positioned at foundation pad (10) scope, along the circumferential direction be radial and be welded with one and enclose L shaped spacer bars (12), the vertical edge of described spacer bars (12) is vertical and be close to the tube wall of precipitation conduit (15), and the horizontal edge level stretches in the foundation pad (10).
4. a kind of clay foundation precipitation water-saving system according to claim 3, it is characterized in that: described spacer bars (12) along the circumferential direction welds 3 at least.
5. a kind of clay foundation precipitation water-saving system according to claim 1, it is characterized in that: the tube wall of described precipitation conduit (15) outside, be positioned at sole plate (20) scope, be welded with two and enclose sealing wing rings along the tube wall length direction is upper and lower, be respectively sealing wing ring (13) and following sealing wing ring (14).
6. a kind of clay foundation precipitation water-saving system according to claim 1; it is characterized in that: be equipped with waterproofing course (18) on the described foundation pad (10); be equipped with concrete fish tail and waterproof layer (19) on the described waterproofing course (18), built sole plate (20) on the described fish tail and waterproof layer (19).
7. a kind of clay foundation precipitation water-saving system according to claim 1, it is characterized in that: the inner corner trim place between the concrete of described precipitation conduit (15) and foundation pad (10) is provided with the waterproof extra play.
8. a kind of clay foundation precipitation water-saving system according to claim 1, it is characterized in that: the top mark height of described precipitation conduit (15) is lower than the high 50mm of top mark of sole plate (20) at least.
9. a kind of clay foundation precipitation water-saving system according to claim 1, it is characterized in that: the end absolute altitude of described collecting well (4) is deeper than the end absolute altitude 500mm of covered conduit (2) at least.
10. a kind of clay foundation precipitation water-saving system according to claim 1, it is characterized in that: the mesh size of described screen pack is 60~80 orders.
CN 201320159825 2013-04-02 2013-04-02 Clay foundation rain falling and water saving system Expired - Fee Related CN203174616U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821158A (en) * 2014-03-21 2014-05-28 中国十九冶集团有限公司 Dewatering and drainage method for construction and excavation under situation of high underground water level
CN103967028A (en) * 2014-05-27 2014-08-06 江苏南通三建集团有限公司 Immersed tube drainage structure and method for handling suddenly-produced foundation pit water bursting and fountains through immersed tube drainage structure
CN104005418A (en) * 2014-06-17 2014-08-27 中铁城建集团第二工程有限公司 Method for rapidly treating underground piping
CN104452786A (en) * 2014-11-14 2015-03-25 武汉一冶建筑安装工程有限责任公司 Deep foundation pit elevator shaft sump dewatering construction method
CN107956221A (en) * 2017-12-12 2018-04-24 中国冶集团有限公司 Downcast well pipe proof protecting device and construction method
CN108729851A (en) * 2018-05-22 2018-11-02 山西省工业设备安装集团有限公司 A kind of depositing dust excavation of foundation pit equipment that water utilization rate is high
CN110258660A (en) * 2019-06-18 2019-09-20 广东龙越建筑工程有限公司 The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821158A (en) * 2014-03-21 2014-05-28 中国十九冶集团有限公司 Dewatering and drainage method for construction and excavation under situation of high underground water level
CN103821158B (en) * 2014-03-21 2016-04-13 中国十九冶集团有限公司 Construction and excavation Yield rainfall relation method under high groundwater condition
CN103967028A (en) * 2014-05-27 2014-08-06 江苏南通三建集团有限公司 Immersed tube drainage structure and method for handling suddenly-produced foundation pit water bursting and fountains through immersed tube drainage structure
CN104005418A (en) * 2014-06-17 2014-08-27 中铁城建集团第二工程有限公司 Method for rapidly treating underground piping
CN104452786A (en) * 2014-11-14 2015-03-25 武汉一冶建筑安装工程有限责任公司 Deep foundation pit elevator shaft sump dewatering construction method
CN107956221A (en) * 2017-12-12 2018-04-24 中国冶集团有限公司 Downcast well pipe proof protecting device and construction method
CN108729851A (en) * 2018-05-22 2018-11-02 山西省工业设备安装集团有限公司 A kind of depositing dust excavation of foundation pit equipment that water utilization rate is high
CN108729851B (en) * 2018-05-22 2019-11-08 山西省工业设备安装集团有限公司 A kind of depositing dust excavation of foundation pit equipment that water utilization rate is high
CN110258660A (en) * 2019-06-18 2019-09-20 广东龙越建筑工程有限公司 The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating

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Granted publication date: 20130904

Termination date: 20140402