CN103643690A - Deep foundation pit exploration hole water burst treatment method - Google Patents
Deep foundation pit exploration hole water burst treatment method Download PDFInfo
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- CN103643690A CN103643690A CN201310669219.6A CN201310669219A CN103643690A CN 103643690 A CN103643690 A CN 103643690A CN 201310669219 A CN201310669219 A CN 201310669219A CN 103643690 A CN103643690 A CN 103643690A
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- steel pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 123
- 239000010959 steel Substances 0.000 claims abstract description 123
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 31
- 238000001914 filtration Methods 0.000 claims description 13
- 238000003672 processing method Methods 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 241000208202 Linaceae Species 0.000 claims description 5
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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Abstract
The invention discloses a deep foundation pit exploration hole water burst treatment method, which comprises the steps of firstly finding out a specific position of an exploration hole water burst point, inserting a thick steel pipe into the position, wherein two ends of the thick steel pipe are open, inserting a thin steel pipe into the thick steel pipe, wherein two ends of the thin steel pipe are open, one end of the thin steel pipe extends out of the ground surface and ensures that the water burst in the thin steel pipe does not exceed the top of the thin steel pipe, the other end of the thin steel pipe is above the horizontal plane of one end, which is immersed in the ground surface, of the thick steel pipe, meanwhile, a filter material is filled between the gaps of the two steel pipes, and rapid hardening concrete is adopted for plugging; and then pouring a concrete cushion layer around the thin steel pipe above the ground surface, simultaneously pumping the water level in the thin steel pipe to be below the concrete cushion layer, plugging the water gushing in the thin steel pipe, and finally finishing the pouring of the bottom plate and cutting off the part of the thin steel pipe exposed out of the bottom plate. The method has the advantages that the problem of water gushing of the exploration hole of the deep foundation pit is well solved, and the treated exploration hole of the deep foundation pit can not generate the water gushing phenomenon.
Description
Technical field
The invention belongs to foundation ditch water burst processing technology field, relate to a kind of deep foundation ditch exploratory hole water burst processing method.
Background technology
In Deep foundation Pit excavation, when excavation arrives design elevation, the head difference inside and outside due to hole is large, the complexity of soil layer and construction factor etc. cause the water burst of leaving over exploratory hole sometimes, cause foundation ditch or basement cannot proceed construction, and can bring major safety risks to deep foundation ditch and surrounding enviroment.The current method of processing deep foundation ditch exploratory hole water burst has several as follows, and the one, shaft bottom precipitation method, the 2nd, sand bag or mount cofferdam, the 3rd, with plugging device, exploratory hole is carried out to shutoff.First method is that water burst is caused in plash, and water pump and the bottom depth of corresponding discharge is set according to specific capacity, by water pump, water burst is got rid of outside hole, and the weak point of this method is that the cycle of drawing water is long, and the expense of drawing water is high, and operation inconvenience; The second is used for the piping of dyke and speedily carries out rescue work, and being applicable to differential water pressures is not too large situation, and in deep foundation ditch, the head difference inside and outside hole is larger, can cause sand bag or earth fill cofferdam too high, and also there is the risk of caving in cofferdam self; The third method looks simple, but when water burst be artesian water when causing, hydraulic pressure is large, leak stopping is easy to lose efficacy.
Summary of the invention
Object of the present invention is providing a kind of deep foundation ditch exploratory hole water burst processing method, has solved the problem that existing method leak stopping was easily lost efficacy.
The technical solution adopted in the present invention is first to find the particular location of exploratory hole issue, at this place, insert the thick steel pipe that diameter is 350～1000mm, thick steel pipe both ends open, one end is concordant with earth's surface, the other end following 3～4m in earth's surface that submerges, in thick steel pipe, insert the fine steel tube of 200～600mm, fine steel tube both ends open, one end is stretched out earth's surface and is guaranteed that the water burst in fine steel tube pipe does not exceed fine steel tube top, the other end is on thick steel pipe submerges the horizontal plane of one end, earth's surface, between two steel pipe gaps, insert filtering material simultaneously, on filtering material, adopt flax silk or fast hardening concrete to carry out shutoff, guarantee that water do not gush out between two steel pipe gaps, next water pump is positioned in fine steel tube and is drawn water, wait for that fine steel tube middle water level does not stop pumping when going up, and fine steel tube inside water burst is carried out to shutoff, finally complete bed course and bottom slab concreting, cut out the part that fine steel tube exposes base plate, complete whole exploratory hole water burst processing procedure.Filtering material is from top to bottom stone, xalsonte, fine sand; Fine steel tube can superpose.The step of shutoff is that the external surface that stretches out ground matrix section at fine steel tube arranges a circle expansion sealing strip and twice water-proof wing-ring, then toward spraying quick hardening cement in fine steel tube or fast hardening concrete carries out shutoff, the last sealing cover plate that welds rapidly.The step of shutoff be fine steel tube stretch out ground matrix section external surface one circle expansion sealing strip and twice water-proof wing-ring are set, a water check valve device is set in fine steel tube inside, and open valve, then toward spraying quick hardening cement in fine steel tube or fast hardening concrete carries out shutoff, after concrete setting, close sealing valve, the last sealing of welding rapidly cover plate.
The invention has the beneficial effects as follows the good deep foundation ditch exploratory hole water burst problem that solved, can there is not water burst phenomenon in the deep foundation ditch exploratory hole after processing again.
Accompanying drawing explanation
Fig. 1 is a kind of deep foundation ditch exploratory hole of the present invention water burst processing method schematic diagram;
Fig. 2 is that the present invention adopts sealing rod and water-proof wing schematic diagram;
Fig. 3 is that the present invention adopts water check valve device schematic diagram.
In figure, 1. thick steel pipe, 2. earth's surface, 3. fine steel tube, 4. concrete cushion, 5. base plate, 6. filtering material, 7. flax silk or fast hardening concrete, 8. expansion sealing strip, 9. water-proof wing-ring, 10. sealing cover plate, 11. water check valve devices.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
First find as shown in Figure 1 the particular location of exploratory hole issue, at this place, insert the thick steel pipe 1 that diameter is 350～1000mm, thick steel pipe 1 both ends open, one end is concordant with earth's surface 2, the other end earth's surface 3～4m below 2 that submerges, in thick steel pipe 1, insert the fine steel tube 3 of 200～600mm, fine steel tube 3 both ends opens, one end is stretched out earth's surface 2 and is guaranteed that the water burst in fine steel tube 3 pipes does not exceed fine steel tube 3 tops, the other end is on thick steel pipe 1 submerges the horizontal plane of one end, earth's surface, between two steel pipe gaps, insert filtering material 6 simultaneously, on filtering material 6, adopt flax silk or fast hardening concrete 7 to carry out shutoff, guarantee that water do not gush out between two steel pipe gaps, next water pump is positioned in fine steel tube 3 and is drawn water, wait for that fine steel tube 3 middle water levels do not stop pumping when going up, and the inner water burst of fine steel tube 3 is carried out to shutoff, finally complete bed course 4 and base plate 5 is built, cut out the part that fine steel tube exposes base plate 5, complete whole exploratory hole water burst processing procedure.Filtering material 6 is from top to bottom stone, xalsonte, fine sand; Fine steel tube 3 can superpose.The step of shutoff is that the external surface that stretches out earth's surface 2 parts at fine steel tube 3 arranges a circle expansion sealing strip 8 and twice water-proof wing-ring 9 as shown in Figure 2, then toward spraying quick hardening cement in fine steel tube or fast hardening concrete carries out shutoff, the last sealing of welding rapidly cover plate 10.The step of shutoff is that the external surface that stretches out earth's surface 2 parts at fine steel tube 3 arranges a circle expansion sealing strip 8 and twice water-proof wing-ring 9 as shown in Figure 3, in fine steel tube 3 inside, a water check valve device 11 is set, and open valve, then toward spraying quick hardening cement in fine steel tube 3 or fast hardening concrete carries out shutoff, after concrete setting, close sealing valve, the last sealing of welding rapidly cover plate 10.
Concrete, when deep pit digging arrives design elevation or cheats the end, there is water burst in exploratory hole, first at exploratory hole place, inserts the thick steel pipe 1 of diameter 350～1000mm, underground layer 3～4m goes forward side by side; To the fine steel tube 3 that inserts diameter 200～600mm in thick steel pipe 1, thereby can connecing more piece, fine steel tube 3 make the head of piping reach as early as possible balance again; Between thick steel pipe 1 and fine steel tube 3, drop into filtering material 6 simultaneously, lower part layer is inserted coarse fodder, handstone and large stone, every layer thickness 20cm～30cm, as found, filler sinks, and can continue to supplement filtrate, until stable, top adopts flax silk or the fast hardening concrete 7 of leak stopping, antiseepage to carry out shutoff, guarantee that like this water flows out from fine steel tube 3, and can effectively reduce water velocity, filter silt particle; Adopt water pump to draw water from fine steel tube 3, guarantee that water level is no more than steel pipe top; When all the other position concrete cushions 4 are all poured, and after thering is initial set, guarantee that now water level is positioned at below bed course, stop pumping gradually.In pump process, Sediment Siltation, water level declines, and is suitable for shutoff.At fine steel tube 3 arranged outside one circle expansion sealing strips 8 and two circle water-proof wing-rings 9, expansion sealing strip 8 water-swellables, can and the laminating of 3 of fine steel tubes closely, in addition water-proof wing-ring 9 and expansion sealing strip 8 can increase permeation pathway, the seepage of effective anti-sealing, then weld rapidly sealing cover plate 10, finally complete building of base plate 5, cut out fine steel tube 3 exposed portions serve.
The invention has the beneficial effects as follows: 1. the present invention adopts thick steel pipe 1 that exploratory hole is surrounded, can make water burst current trends clear and definite, can avoid the appearance of new piping point.2. the present invention adopts thick steel pipe 1 that exploratory hole is surrounded, and fine steel tube 3 is deep in soil layer to a certain degree, it is advantageous that fine steel tube 3 can be easy to and increase safely, reduces rapidly head difference.3. between the present invention's two steel pipes, adopt filtering material 6, can effectively slow down flow rate of water flow, and reach the effect of filtering silt.4. the present invention is in pump process, and in pipe, silt deposits gradually, and water velocity slows down, and in tubule, head constantly declines, and Sealing Conditions is good.The method of the invention is simple, and effect is remarkable, can effectively process the water burst of deep foundation ditch exploratory hole, accelerates construction progress.Enumerating specific embodiment below describes:
Embodiment 1: at exploratory hole issue, insert 300mm thick steel pipe, insert earth's surface 3.5m, in thick steel pipe, place 200mm fine steel tube, and at fine steel tube of the supreme stack of fine steel tube, between steel pipe gap, insert from the bottom to top stone, then using fast hardening concrete shutoff, on earth's surface around fine steel tube concreting bed course, expansion sealing strip and twice water-proof wing-ring make a circle in fine steel tube outside, weld rapidly sealing cover plate, above concrete cushion, build again base plate, finally cut out the fine steel tube that exposes base plate.
Embodiment 2: at exploratory hole issue, insert 600mm thick steel pipe, insert earth's surface 3.5m, in thick steel pipe, place 400mm fine steel tube, and at fine steel tube of the supreme stack of fine steel tube, between steel pipe gap, insert from the bottom to top stone, then using fast hardening concrete shutoff, on earth's surface around fine steel tube concreting bed course, expansion sealing strip and twice water-proof wing-ring make a circle in fine steel tube outside, weld rapidly sealing cover plate, above concrete cushion, build again base plate, finally cut out the fine steel tube that exposes base plate.
Embodiment 3: at exploratory hole issue, insert 1000mm thick steel pipe, insert earth's surface 4m, in thick steel pipe, place 600mm fine steel tube, and at fine steel tube of the supreme stack of fine steel tube, between steel pipe gap, insert from the bottom to top stone, then using fast hardening concrete shutoff, on earth's surface around fine steel tube concreting bed course, expansion sealing strip and twice water-proof wing-ring make a circle in fine steel tube outside, a water check valve device is set in fine steel tube inside, and open valve, then toward spraying quick hardening cement in fine steel tube or fast hardening concrete carries out shutoff, after concrete setting, close sealing valve, the last sealing of welding rapidly cover plate, above concrete cushion, build again base plate, finally cut out the fine steel tube that exposes base plate.
Claims (5)
1. a deep foundation ditch exploratory hole water burst processing method, it is characterized in that: the particular location that first finds exploratory hole issue, at this place, insert the thick steel pipe (1) that diameter is 350～1000mm, thick steel pipe (1) both ends open, one end is concordant with earth's surface (2), the other end following 3～4m in earth's surface (2) that submerges, in thick steel pipe (1), insert the fine steel tube (3) of 200～600mm, fine steel tube (3) both ends open, one end is stretched out earth's surface (2) and is guaranteed that the water burst in fine steel tube (3) pipe does not exceed fine steel tube (3) top, the other end is on thick steel pipe (1) submerges the horizontal plane of one end, earth's surface, between two steel pipe gaps, insert filtering material (6) simultaneously, on filtering material (6), adopt flax silk or fast hardening concrete (7) to carry out shutoff, guarantee that water do not gush out between two steel pipe gaps, next water pump is positioned in fine steel tube (3) and draws water, wait for that fine steel tube (3) middle water level does not stop pumping when going up, and the inner water burst of fine steel tube (3) is carried out to shutoff, finally complete bed course (4) and base plate (5) is built, cut out the part that fine steel tube exposes base plate (5), complete whole exploratory hole water burst processing procedure.
2. according to a kind of deep foundation ditch exploratory hole water burst processing method described in claim 1, it is characterized in that: described filtering material (6) is from top to bottom stone, xalsonte, fine sand.
3. according to a kind of deep foundation ditch exploratory hole water burst processing method described in claim 1, it is characterized in that: described fine steel tube (3) can superpose.
4. according to the arbitrary described a kind of deep foundation ditch exploratory hole water burst processing method of claims 1 to 3, it is characterized in that: the step of described shutoff is at fine steel tube (3), to stretch out earth's surface (2) external surface partly one circle expansion sealing strip (8) and twice water-proof wing-ring (9) are set, then toward spraying quick hardening cement in fine steel tube or fast hardening concrete carries out shutoff, the last sealing cover plate (10) of welding rapidly.
5. according to the arbitrary described a kind of deep foundation ditch exploratory hole water burst processing method of claims 1 to 3, it is characterized in that: the step of described shutoff is at fine steel tube (3), to stretch out earth's surface (2) external surface partly one circle expansion sealing strip (8) and twice water-proof wing-ring (9) are set, in fine steel tube (3) inside, a water check valve device (11) is set, and open valve, then toward fine steel tube (3) middle injection quick hardening cement or fast hardening concrete, carry out shutoff, after concrete setting, close sealing valve, the last sealing cover plate (10) of welding rapidly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310669219.6A CN103643690A (en) | 2013-12-12 | 2013-12-12 | Deep foundation pit exploration hole water burst treatment method |
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| CN201310669219.6A CN103643690A (en) | 2013-12-12 | 2013-12-12 | Deep foundation pit exploration hole water burst treatment method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452828A (en) * | 2014-10-31 | 2015-03-25 | 武汉一冶建筑安装工程有限责任公司 | Basement ramp piping point drainage and blocking handling method |
| CN106522251A (en) * | 2016-10-28 | 2017-03-22 | 广州机施建设集团有限公司 | Geological drill hole confined water spewing water head balanced construction method |
| CN107326941A (en) * | 2017-06-01 | 2017-11-07 | 中国水利水电第十二工程局有限公司 | It is a kind of to have the concrete floor seepage treatment device and method for pressing underground water |
| CN108018859A (en) * | 2017-12-12 | 2018-05-11 | 中国建筑第八工程局有限公司 | Foundation Pit Pouring emergency processing method and structure |
| CN109881691A (en) * | 2019-03-28 | 2019-06-14 | 中铁十一局集团城市轨道工程有限公司 | In a kind of Deep Excavation in foundation pit substrate exploratory hole piping processing method |
| CN111608193A (en) * | 2020-06-08 | 2020-09-01 | 扬州工业职业技术学院 | Foundation ditch gushes water rapid treatment device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452828A (en) * | 2014-10-31 | 2015-03-25 | 武汉一冶建筑安装工程有限责任公司 | Basement ramp piping point drainage and blocking handling method |
| CN106522251A (en) * | 2016-10-28 | 2017-03-22 | 广州机施建设集团有限公司 | Geological drill hole confined water spewing water head balanced construction method |
| CN107326941A (en) * | 2017-06-01 | 2017-11-07 | 中国水利水电第十二工程局有限公司 | It is a kind of to have the concrete floor seepage treatment device and method for pressing underground water |
| CN108018859A (en) * | 2017-12-12 | 2018-05-11 | 中国建筑第八工程局有限公司 | Foundation Pit Pouring emergency processing method and structure |
| CN109881691A (en) * | 2019-03-28 | 2019-06-14 | 中铁十一局集团城市轨道工程有限公司 | In a kind of Deep Excavation in foundation pit substrate exploratory hole piping processing method |
| CN109881691B (en) * | 2019-03-28 | 2024-02-06 | 中铁十一局集团城市轨道工程有限公司 | Method for processing foundation pit inner base exploration hole piping in deep foundation pit excavation process |
| CN111608193A (en) * | 2020-06-08 | 2020-09-01 | 扬州工业职业技术学院 | Foundation ditch gushes water rapid treatment device |
| CN111608193B (en) * | 2020-06-08 | 2021-12-31 | 扬州工业职业技术学院 | Foundation ditch gushes water rapid treatment device |
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Application publication date: 20140319 |