CN104711994A - Foundation pit deep well rainfall and plugging construction method - Google Patents
Foundation pit deep well rainfall and plugging construction method Download PDFInfo
- Publication number
- CN104711994A CN104711994A CN201510040318.7A CN201510040318A CN104711994A CN 104711994 A CN104711994 A CN 104711994A CN 201510040318 A CN201510040318 A CN 201510040318A CN 104711994 A CN104711994 A CN 104711994A
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- 238000010276 construction Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 83
- 239000010959 steel Substances 0.000 claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004575 stone Substances 0.000 claims abstract description 12
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 6
- 239000008397 galvanized steel Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 37
- 238000000576 coating method Methods 0.000 claims description 37
- 239000004567 concrete Substances 0.000 claims description 29
- 238000001556 precipitation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 241000251468 Actinopterygii Species 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 239000011150 reinforced concrete Substances 0.000 abstract description 6
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a foundation pit deep well rainfall and plugging construction method, and relates to the technical field of building construction. A graded broken stone layer is laid at the bottom of prefabricated reinforced concrete sunken pipes, a steel plate is arranged on the upper end faces of the prefabricated reinforced concrete sunken pipes in a sealed mode, a through hole is preformed in the center of the steel plate, a galvanized steel pipe with the lower end stretching into the graded broken stone layer is inserted into the through hole of the steel plate in a penetrating mode, and the galvanized steel pipe on the steel plate is connected with a water suction pump for water suction. After waterproof construction is conducted at the bottom of the upper section of a deep well, bottom plate reinforced concrete pouring is conducted on the waterproof construction face. After the water suction pump is located at low water pressure, a valve is closed, the galvanized steel pipe located above the valve is cut off, and a building backfill layer is constructed to the upper end face of the galvanized steel pipe. The construction period is saved, investment of labor and material resources is reduced, the water leakage phenomenon generated after basement bottom plate structure construction is avoided, and cost consumed by plugging through various measures due to water leakage of a basement bottom plate is reduced.
Description
Technical field
The present invention relates to technical field of building construction, particularly deep foundation pit precipitation and plugging construction technology.
Background technology
Along with the development need of society; base pit engineering continues to increase, deepen; though the foundation ditch periphery well-point dewatering method of normal employing solves whole foundation pit dewatering problem; but to be positioned at foundation ditch centre position elevator pit, catchment the deep foundation ditchs such as well; normal meeting is because foundation ditch perimeter well point dewatering is not in place; there is infiltration and preventing water phenomenon after elevator shaft, the deep pit diggings such as well that catchment, the construction predicament that a large amount of human and material resources go to overcome foundation ditch infiltration and emit water to cause when deep foundation ditch bed course and Slab Waterproof Construction, need be consumed.
In addition, before basement bottom board construction, modal phenomenon in current overall deep-foundation pit engineering when deep foundation ditch infiltration or preventing water phenomenon, deep foundation ditch infiltration, preventing water phenomenon not only hinder the construction of deep foundation ditch bed course, and often because percolating water appears in the excessive basement bottom board that causes of basement hydraulic pressure after basement structure bottom slab concreting completes, constructor has to take close measure to carry out the maintenance work of basement bottom board percolating water over and over again, and later period maintenance can not play final solution base plate leakage water problems.
Summary of the invention
For solving above-mentioned deep foundation pit precipitation and shutoff problem, the present invention proposes a kind of foundation-pit deep-well precipitation and plugging construction method.
The present invention includes following steps:
1) deep-well that epimere diameter is greater than hypomere diameter is excavated out;
2) prefabricated steel concrete immersed tube is vertically sunk down into the hypomere of deep-well, the deep-well epimere outside the upper surface of prefabricated steel concrete immersed tube makes layer of concrete;
3) in prefabricated steel concrete immersed tube, graded broken stone layer is laid at the end;
4) in prefabricated steel concrete immersed tube upper surface, sealing arranges steel plate, the prefabricated through hole in center of steel plate;
5) also surrounding of interting in the through hole of steel plate is welded and fixed coating steel pipe, and the lower end of coating steel pipe is stretched in graded broken stone layer, and the coating steel pipe above steel plate connects pulsating pump by valve;
6) bottom the epimere of deep-well, waterproof construction is carried out;
7) on waterproof construction face, baseplate reinforcing bar concreting is carried out;
8) be in after low hydraulic pressure until pulsating pump, valve-off, cut off the coating steel pipe be positioned at above valve;
9) upper surface of backfill layer construction to coating steel pipe is built.
Experiment through multiple elevator shaft, the deep-foundation pit engineerings such as well that catchment proves: adopt the inventive method, not only can solve and occur that deep foundation ditch seeps water and emits water problem after soil excavation, make to carry out in the environment of a relatively dry during deep foundation pit construction, both save the duration, again save cost; And can draw water at any time after basement bottom board construction, to avoid elevator shaft, there is percolating water phenomenon in the deep foundation ditchs such as well that catchment.Easy construction of the present invention, technological process is clear understandable, and operator is easy to grasp.
In a word, the present invention not only solves underwater work before basement cushion construction, has greatly saved the construction period, has decreased the input of human and material resources; And there is percolating water phenomenon after avoiding basement floor constructions construction, decrease basement bottom board and adopt various measures because of percolating water and carry out the cost consumed of shutoff.
Sucked by underground big particle when absorbing water to prevent pulsating pump, cause pipeline blockage, the present invention also arranges metal filter screen in the lower end of coating steel pipe.
In order to prevent because of hydraulic pressure in deep-well and the water yield excessive, in prefabricated steel concrete immersed tube, the galvanized steel pipeline section above graded broken stone layer arranges some treatment holes, improves precipitation efficiency by treatment hole.
Described waterproof construction comprises the waterproof roll bottom the epimere being arranged in deep-well, and waterproof roll makes fish tail and waterproof layer with pea gravel concreten or mortar.
In order to make waterproof further, above waterproof roll flashing, arrange seal ring, described seal ring is fixed on coating steel pipe outer wall.
Described waterproof roll forms flashing along coating steel pipe outer wall returns to seal ring.
Described waterproof roll forms flashing along coating steel pipe outer wall returns to seal ring.In order to prevent underground water from entering upper strata along coating steel pipe outer wall, the present invention also by ferrule by the waterproof roll end winding support that returns at coating steel pipe outer wall.
The circumference of steel concrete immersed tube arranges some spilled water holes.Be conducive to groundwater table higher time, underground water can be discharged to foundation-pit deep-well from the spilled water hole of steel concrete immersed tube surrounding in time in time; Taken away the water in deep-well more in time by unlatching top self priming pump.
Accompanying drawing explanation
Fig. 1 is foundation-pit deep-well precipitation and shutoff vertical cross section figure.
Fig. 2 is A portion enlarged drawing in Fig. 1.
Fig. 3 is open caisson transverse cross-sectional view.
Fig. 4 is open caisson vertical cross section figure.
Detailed description of the invention
Elevator shaft or the Construction Techniques for Deep Foundation Pit concrete operations flow processs such as well of catchmenting are:
Prefabrication and lifting steel concrete immersed tube, deep-well are cut the earth, prefabricated reinforced concrete immersed tube sinks, graded broken stone is laid in shaft bottom, bury coating steel pipe underground, coating steel pipe is fixed with Plate Welding, installation high-voltage valve, dock, the construction of deep-well precipitation, basement bottom board cushion construction, waterproof, fish tail and waterproof layer, baseplate reinforcing bar concreting, observe stable water pressure, close high pressure valve, cut off coating steel pipe, build backfill layer and construct with self priming pump.
Specifically as shown in Figure 1,2,3, 4:
One, prefabrication and lifting steel concrete immersed tube:
Shown in Fig. 3,4, and designing requirement makes the prefabrication and lifting steel concrete immersed tube 1 that interior diameter is 1m, and stays the draw ring established and may be used for hoisting and hanging, lifts when being convenient to Immersed tunnel.Steel concrete immersed tube 1 is provided with double-layer double-direction reinforcing bar 16, and in the circumference of steel concrete immersed tube 1, arrange some 50 × 100mm spilled water holes 2.
Two, deep foundation pit construction:
1, the method that cut the earth in artificial limit, shoveling limit, prefabricated reinforced concrete immersed tube limit sinks is adopted, excavate out epimere elevator (or collecting well) cushion cap foundation ditch, epimere diameter is greater than the deep-well of hypomere diameter, and hypomere diameter is about 1200mm, continue the earthwork of excavation deep-well, the hypomere degree of depth: 2 ~ 3m.
Prefabricated reinforced concrete immersed tube 1 should sink in segmentation, and every section of Altitude control is at 750 ~ 1000mm.
2, when the upper layer undersurface of deep-well a little less than excavation of the upper surface of prefabricated steel concrete immersed tube 1, deep-well epimere outside the upper surface of prefabricated steel concrete immersed tube 1 makes layer of concrete 17, and in the upper surface of prefabricated steel concrete immersed tube 1 several L50 × 50 × 5 angle steel 7 pre-buried.
3, in prefabricated steel concrete immersed tube 1, the graded broken stone layer 3 being highly about 0.5 ~ 0.8m is laid at the end.
4, in prefabricated steel concrete immersed tube 1 upper surface, seal one block of circular steel plate 8 by angle steel 7, steel plate 8 adopts Q235B material, and thickness is 30mm, is prefabricated with the through hole for placing coating steel pipe at the center of steel plate 8.
5, the good Cr-Ni system of corrosion resistance (300 series) hot-rolled steel is adopted, as 304,316 make coating steel pipe 4.
Interspersed coating steel pipe 4 in the through hole of steel plate 8, the lower end of coating steel pipe 4 is stretched in graded broken stone layer 3, arranges and the metal filter screen 5 of coating steel pipe 4 with material in the lower end of coating steel pipe 4.In prefabricated steel concrete immersed tube 1, in the about 300mm interval on graded broken stone layer 3 absolute altitude top, on coating steel pipe 4, arrange some treatment holes 6.Behind location, coating steel pipe 4 and steel plate 8 are fixed along steel plate 8 tube wall by flash of light full weld 12.
Coating steel pipe 4 above steel plate 8 is connected pulsating pump by tube material with elbow 15, high pressure valve 14, by opening high pressure valve 14, docks with pulsating pump and carrying out precipitation.High pressure valve 14 need stay and be located at base arrangement concrete surface and building middle part, backfill face, and prevent because valve 14 topping is too thin after building backfill layer plugging construction, long term exposure produces corrosion to valve in atmosphere, causes percolating water.
6, bottom the epimere of deep-well, waterproof construction is carried out: waterproof construction comprises the waterproof roll 9 bottom the epimere being arranged in deep-well, and waterproof roll 9 makes fish tail and waterproof layer 10 with pea gravel concreten or mortar.
Above waterproof roll 9 flashing, arrange seal ring 13, seal ring 13 full weld is at coating steel pipe 4 outer wall.
Waterproof roll 9 flashing is that waterproof roll 9 is formed flashing along the below outer wall of coating steel pipe 4 returned to seal ring 13, and by ferrule 11 by waterproof roll 9 end winding support that returns at the outer wall of coating steel pipe 4.
7, on waterproof construction face, baseplate reinforcing bar concreting is carried out.
8, observe pulsating pump 14 hydraulic pressure, be in after low hydraulic pressure until pulsating pump 14, valve-off 14, cut off the coating steel pipe be positioned at above valve 14, and the delivery port of plugging valve 14.
9, the upper surface of backfill layer construction to coating steel pipe is built.
Claims (8)
1. foundation-pit deep-well precipitation and plugging construction method, comprises the following steps:
1) deep-well that epimere diameter is greater than hypomere diameter is excavated out;
2) prefabricated steel concrete immersed tube is vertically sunk down into the hypomere of deep-well, the deep-well epimere outside the upper surface of prefabricated steel concrete immersed tube makes layer of concrete;
3) in prefabricated steel concrete immersed tube, graded broken stone worry water layer is laid at the end;
Characterized by further comprising following steps:
4) in prefabricated steel concrete immersed tube upper surface, sealing arranges steel plate, the prefabricated through hole in center of steel plate;
5) intert in the through hole of steel plate and fix coating steel pipe, the lower end of coating steel pipe is stretched in graded broken stone layer, and the coating steel pipe above steel plate connects pulsating pump by valve;
6) bottom the epimere of deep-well, carry out waterproofing course and fish tail and waterproof layer construction;
7) in waterproof construction protection aspect, baseplate reinforcing bar concreting is carried out;
8) be in after low hydraulic pressure until pulsating pump, valve-off, cut off the coating steel pipe be positioned at above valve;
9) upper surface of backfill layer construction to coating steel pipe is built.
2. construction method according to claim 1, is characterized in that arranging metallized metal screen pack in the lower end of coating steel pipe.
3. construction method according to claim 1, is characterized in that, in prefabricated steel concrete immersed tube, the galvanized steel pipeline section above graded broken stone layer arranging some treatment holes.
4. construction method according to claim 1, is characterized in that described waterproof construction comprises the waterproof roll bottom the epimere being arranged in deep-well, waterproof roll makes fish tail and waterproof layer with pea gravel concreten or mortar.
5. construction method according to claim 4, is characterized in that arranging seal ring above waterproof roll flashing, and described seal ring adopts the method for welding to be fixed on coating steel pipe outer wall.
6. construction method according to claim 5, is characterized in that described waterproof roll forms flashing along coating steel pipe outer wall returns to seal ring.
7. construction method according to claim 6, it is characterized in that by ferrule by the waterproof roll end winding support that returns at coating steel pipe outer wall.
8. construction method according to claim 1, is characterized in that in the circumference of steel concrete immersed tube, arrange some spilled water holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510040318.7A CN104711994A (en) | 2015-01-27 | 2015-01-27 | Foundation pit deep well rainfall and plugging construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510040318.7A CN104711994A (en) | 2015-01-27 | 2015-01-27 | Foundation pit deep well rainfall and plugging construction method |
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| Publication Number | Publication Date |
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| CN104711994A true CN104711994A (en) | 2015-06-17 |
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| CN201510040318.7A Pending CN104711994A (en) | 2015-01-27 | 2015-01-27 | Foundation pit deep well rainfall and plugging construction method |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625481A (en) * | 2016-03-21 | 2016-06-01 | 上海长凯岩土工程有限公司 | Construction method for drainage holes for underground constructions |
| CN105625482A (en) * | 2016-03-21 | 2016-06-01 | 上海长凯岩土工程有限公司 | Hole arrangement way for foundation slab of underground construction and application thereof |
| CN105804124A (en) * | 2016-03-21 | 2016-07-27 | 上海长凯岩土工程有限公司 | Sudden-surging-prevention water pressure control method used for underground engineering |
| CN106032672A (en) * | 2015-12-02 | 2016-10-19 | 天津富源水利工程有限公司 | Deep ground pit grenade type well pre-sealing precipitation method |
| CN106400824A (en) * | 2016-09-26 | 2017-02-15 | 中建八局第四建设有限公司 | Method for landfill of large-diameter water well |
| CN106638642A (en) * | 2017-02-21 | 2017-05-10 | 潍坊市宏源防水材料有限公司 | Underground building pit body waterproof construction precipitation treating method |
| CN106759364A (en) * | 2016-11-28 | 2017-05-31 | 中冶建工集团有限公司 | Deep basal pit base plate step-by-step construction method |
| CN106894431A (en) * | 2017-02-21 | 2017-06-27 | 潍坊市宏源防水材料有限公司 | Hypogee hole body waterproof construction precipitation processing method under a kind of water resource enriched environment |
| CN106948757A (en) * | 2017-04-05 | 2017-07-14 | 苏州华造建筑设计有限公司 | A kind of underground pipe well-digging construction technology carried out using foundation ditch region |
| CN107152031A (en) * | 2017-06-24 | 2017-09-12 | 中铁十局集团第二工程有限公司 | It is a kind of to cheat elevator drainage arrangement without pair |
| CN107217725A (en) * | 2017-07-06 | 2017-09-29 | 南通航运职业技术学院 | A kind of hand excavation rides well and its construction method |
| CN107604954A (en) * | 2017-09-29 | 2018-01-19 | 上海宝冶集团有限公司 | Ttom of pipe plugging construction method after deep basal pit push pipe |
| CN108468342A (en) * | 2018-05-18 | 2018-08-31 | 中铁十局集团第二工程有限公司 | A kind of precipitation mechanism and raft plate water cut off device device |
| CN108825152A (en) * | 2018-05-10 | 2018-11-16 | 歌山建设集团有限公司 | A kind of deep-well is anti-to bury device and its method for construction |
| CN109083175A (en) * | 2018-08-23 | 2018-12-25 | 中国五冶集团有限公司 | The cushion cap foundation pit and its construction method for having continuous drainage function |
| 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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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104820A1 (en) * | 2006-03-14 | 2007-09-20 | Lopez Rodriguez Jorge | Pump for draining bores by means of alternating aspiration and expulsion cycles, based on the principle of pneumatic displacement |
| CN101768976A (en) * | 2009-12-29 | 2010-07-07 | 中建城市建设发展有限公司 | Base pit dewatering and water saving device and construction method thereof |
| CN202047416U (en) * | 2011-03-15 | 2011-11-23 | 北京中关村开发建设股份有限公司 | Well sealing device of pressure-reducing and dewatering well at elevator well pit |
| CN202610818U (en) * | 2012-04-10 | 2012-12-19 | 广东金辉华集团有限公司 | Water dropping structure for foundation pit by pipe sinking of prefabricated concrete pipe |
| CN103343543A (en) * | 2013-07-09 | 2013-10-09 | 中国一冶集团有限公司 | Foundation pit dewatering well pressure-reduction-type plugging method |
-
2015
- 2015-01-27 CN CN201510040318.7A patent/CN104711994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007104820A1 (en) * | 2006-03-14 | 2007-09-20 | Lopez Rodriguez Jorge | Pump for draining bores by means of alternating aspiration and expulsion cycles, based on the principle of pneumatic displacement |
| CN101768976A (en) * | 2009-12-29 | 2010-07-07 | 中建城市建设发展有限公司 | Base pit dewatering and water saving device and construction method thereof |
| CN202047416U (en) * | 2011-03-15 | 2011-11-23 | 北京中关村开发建设股份有限公司 | Well sealing device of pressure-reducing and dewatering well at elevator well pit |
| CN202610818U (en) * | 2012-04-10 | 2012-12-19 | 广东金辉华集团有限公司 | Water dropping structure for foundation pit by pipe sinking of prefabricated concrete pipe |
| CN103343543A (en) * | 2013-07-09 | 2013-10-09 | 中国一冶集团有限公司 | Foundation pit dewatering well pressure-reduction-type plugging method |
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| CN106032672A (en) * | 2015-12-02 | 2016-10-19 | 天津富源水利工程有限公司 | Deep ground pit grenade type well pre-sealing precipitation method |
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| CN105625482A (en) * | 2016-03-21 | 2016-06-01 | 上海长凯岩土工程有限公司 | Hole arrangement way for foundation slab of underground construction and application thereof |
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| CN105625482B (en) * | 2016-03-21 | 2017-11-21 | 上海长凯岩土工程有限公司 | Pattern and its application on underground engineering sole plate |
| CN106400824A (en) * | 2016-09-26 | 2017-02-15 | 中建八局第四建设有限公司 | Method for landfill of large-diameter water well |
| CN106759364A (en) * | 2016-11-28 | 2017-05-31 | 中冶建工集团有限公司 | Deep basal pit base plate step-by-step construction method |
| CN106638642B (en) * | 2017-02-21 | 2019-08-27 | 宏源防水科技集团有限公司 | A kind of hypogee pit body waterproof construction precipitation processing method |
| CN106894431B (en) * | 2017-02-21 | 2019-08-27 | 宏源防水科技集团有限公司 | Hypogee pit body waterproof construction precipitation processing method under a kind of water resource enriched environment |
| CN106894431A (en) * | 2017-02-21 | 2017-06-27 | 潍坊市宏源防水材料有限公司 | Hypogee hole body waterproof construction precipitation processing method under a kind of water resource enriched environment |
| CN106638642A (en) * | 2017-02-21 | 2017-05-10 | 潍坊市宏源防水材料有限公司 | Underground building pit body waterproof construction precipitation treating method |
| CN106948757A (en) * | 2017-04-05 | 2017-07-14 | 苏州华造建筑设计有限公司 | A kind of underground pipe well-digging construction technology carried out using foundation ditch region |
| CN107152031A (en) * | 2017-06-24 | 2017-09-12 | 中铁十局集团第二工程有限公司 | It is a kind of to cheat elevator drainage arrangement without pair |
| CN107217725A (en) * | 2017-07-06 | 2017-09-29 | 南通航运职业技术学院 | A kind of hand excavation rides well and its construction method |
| CN107604954A (en) * | 2017-09-29 | 2018-01-19 | 上海宝冶集团有限公司 | Ttom of pipe plugging construction method after deep basal pit push pipe |
| CN108825152A (en) * | 2018-05-10 | 2018-11-16 | 歌山建设集团有限公司 | A kind of deep-well is anti-to bury device and its method for construction |
| CN108825152B (en) * | 2018-05-10 | 2024-01-02 | 歌山建设集团有限公司 | Deep well anti-burying device and construction method thereof |
| CN108468342A (en) * | 2018-05-18 | 2018-08-31 | 中铁十局集团第二工程有限公司 | A kind of precipitation mechanism and raft plate water cut off device device |
| CN110552342A (en) * | 2018-06-04 | 2019-12-10 | 中冶天工集团有限公司 | method for discharging excess water after watertight construction by self-supporting medium-coarse sand drainer |
| CN109083175A (en) * | 2018-08-23 | 2018-12-25 | 中国五冶集团有限公司 | The cushion cap foundation pit and its construction method for having continuous drainage function |
| 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 |
| CN111501858A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Construction method for detecting leakage by using foundation pit bottom plate dewatering well plugging device |
| CN111764396A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Construction method for water-rich stratum pit-in-pit |
| CN112227395A (en) * | 2020-10-13 | 2021-01-15 | 机械工业勘察设计研究院有限公司 | Well sealing device and method for large-water-pressure-drop well in building raft |
| CN113152619A (en) * | 2021-03-09 | 2021-07-23 | 周洪涛 | Underground water diversion and drainage structure in concrete pouring process and construction method thereof |
| CN113982007A (en) * | 2021-08-12 | 2022-01-28 | 中建四局第五建筑工程有限公司 | Enclosed construction behind sump pit is reserved in basement bottom plate post-cast strip |
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