CN104234065A - Leakage drainage structure of waterproof curtain - Google Patents
Leakage drainage structure of waterproof curtain Download PDFInfo
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- CN104234065A CN104234065A CN201410494401.7A CN201410494401A CN104234065A CN 104234065 A CN104234065 A CN 104234065A CN 201410494401 A CN201410494401 A CN 201410494401A CN 104234065 A CN104234065 A CN 104234065A
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Abstract
The invention provides a leakage drainage structure of a waterproof curtain. The structure is arranged on a foundation pit leaking part and a supporting structure to construct. The structure comprises a hole body arranged in the foundation pit leaking part, wherein a drainage pipe is arranged in the hole part and comprises a needle part section with a screw thread at the end part, an extended connection section and an end part section which are connected by a connection barrel through the screw thread; an inverted filtering water layer is arranged at the periphery of the needle part section; a plugging section is arranged at the periphery of the extended connection section and is used for plugging; a spherical valve is arranged on one side of the end part section and leaked water of the leaking part is discharged by the spherical valve. The leakage drainage structure has the effects that the structure is simple to operate, low in construction cost and rapid in construction speed, and can be used for discharging a water body of the leaking part of the waterproof curtain in time, reducing the pressure of water and soil of the leaking part, excluding dangerous cases as soon as possible and guaranteeing the safety of a foundation pit; meanwhile, the drainage pipe can be repeatedly turned over and used so that the energy-saving effect is realized.
Description
Technical field
Water-stop curtain of the present invention is water-stopping structure common in deep-foundation pit engineering, and when water-stop curtain generation serious leakage, and when not causing structure damage, general employing drainage is in conjunction with close measure.Particularly relate to a kind of water stopping curtain seepage flow guiding structure, the water body at Leakage of Foundation Pit position can be got rid of by this structure fast, and the very first time removes the dangerous condition, and guarantees deep pit monitor.
Background technology
Current city construction develop rapidly, deep-foundation pit engineering increases increasingly.Often adopt deep cement-mixed pile, high-pressure rotary jet grouting pile as water-stop curtain in base pit engineering.The leakage problems of foundation ditch is also more common, and the engineering accident that the whole nation causes because of Leakage of Foundation Pit is also of common occurrence.The reason also more complicated of Leakage of Foundation Pit, according to the difference of the light and heavy degree of Leakage of Foundation Pit, common leak stopping mode has: high-pressure rotary-spray, two fluid grouting, foam-injection agent, water do not leak shutoff, fill the methods such as expanding material.Adopt the method for high-pressure rotary-spray, two fluid grouting, obvious to the regulation effect of seepage, but drop into costly.Adopt foam-injection, water does not leak shutoff, fill the method for expanding material, expense simple to operate is low, but effectively can not get rid of the water body of seepage place existence, effectively thoroughly can not solve leakage problems, cause Water And Earth Pressures to increase, endanger deep pit monitor simultaneously.
Summary of the invention
The object of this invention is to provide a kind of water stopping curtain seepage flow guiding structure, be beneficial to solve Problems existing in existing water stopping curtain seepage Treatment process, small investment, instant effect, in time water body to be discharged.
For achieving the above object, the technical solution used in the present invention is to provide a kind of water stopping curtain seepage flow guiding structure, this vibrational power flow is at Leakage of Foundation Pit position, support construction, wherein: this structure is included in the hole body that described Leakage of Foundation Pit position is arranged, in hole body, drainage tube is installed, drainage tube comprises the pin portion section of end belt screw thread, the section of receiving, end segments, and adopt screwed connection by connecting cylinder, anti-filter water layer is provided with in the periphery of described pin portion section, be provided with block section in the periphery of the described section of receiving and carry out shutoff, ball valve is provided with in the side of described end segments, seepage place infiltration is got rid of by ball valve.
Effect of the present invention is that this structure operation is simple, cost is low, speed of application is fast, the water body at water stopping curtain seepage position can be discharged in time, reduces leakage area Water And Earth Pressures, the very first time removes the dangerous condition, ensure deep pit monitor, mozzle can repeat turnover use simultaneously, reaches energy-saving effect.
Adopt water stopping curtain seepage flow guiding structure, each expense of oozing a little is about 500 yuan, and cost is about 10% of high-pressure rotary-spray expense, is 2% of two fluid grouting expense, speed of application be about high-pressure rotary-spray, two fluid grouting required time 30%, it is suitable to administer seepage effect.Do not leak shutoff with foam-injection, water, fill expanding material compared with, expense, speed of application are suitable, but administer seepage effect and obviously will be better than this three kinds of methods.
Accompanying drawing explanation
Fig. 1 is water stopping curtain seepage flow guiding structure cross section structure schematic diagram of the present invention;
Fig. 2 is hole body cross section structure schematic diagram of the present invention;
Fig. 3 is drainage tube elevational schematic view of the present invention.
In figure:
1, hole body 2, drainage tube 3, anti-filter water layer 4, block section 5, pin portion section
6, connecting cylinder 7, the section of receiving 8 are end segments 9, circular hole 10, stopper
11, Dense mesh screen 12, ring steel plate 13, ball valve 14, expansion bolt
15, leak stopping spirit 16, rapid-hardening micro-expansion cement mortar 17, water-stop curtain
18, undisturbed soil 19, supporting and protection structure
Detailed description of the invention
Below in conjunction with accompanying drawing, water stopping curtain seepage flow guiding structure of the present invention is described in detail.
Water stopping curtain seepage flow guiding structure of the present invention, this vibrational power flow is at Leakage of Foundation Pit position, support construction, this structure is included in the hole body 1 that described Leakage of Foundation Pit position is arranged, described hole body 1 adopts artificial or mechanical system at water stopping curtain seepage position pore-forming, aperture is 15cm, do expanding treatment within the scope of the 700mm of end, aperture, end is 250mm.
In described hole body 1, drainage tube 2 is installed, drainage tube 2 comprises pin portion section 5, the section of receiving 7, the end segments 8 of end belt screw thread, and adopt screwed connection by connecting cylinder 6, anti-filter water layer 3 is provided with in the periphery of described pin portion section 5, be provided with block section 4 in the periphery of the described section of receiving 7 and carry out shutoff, be provided with ball valve 13 in the side of described end segments 8, seepage place infiltration can be got rid of.
The tube length of described pin portion section 5 is 50cm, diameter is 10cm, surface is provided with the circular hole 9 that multiple uniform diameter is 5mm, the center to center distance of every two circular holes 9 is 10mm, be evenly arranged in pin portion section tube surfaces, the end of pin portion section 5 is provided with stopper 10 and carries out shutoff, pin portion section 5 be coated with two-layer Dense mesh screen 11.
The described section of receiving 7 is that multiple section of receiving connects into the body of multiple different length by connecting cylinder 6.The length 50cm of the section of receiving 7, diameter 10cm, can receive according to the difference of hole body 1 degree of depth.
The outside weldings ring steel plate 12 of described end segments 8, tube length is 50cm, and diameter is 10cm, and the middle part of end segments 8 is provided with ball valve 13, and ring steel plate 12 is fixed in supporting and protection structure 19 by expansion bolt 14, and is sealed by leak stopping spirit 15.
Described anti-filter water layer 3 is divided into I, II two-layer sand pocket, every layer of sandstone material filling prepared by level, the sandstone material particle diameter of I layer of sand pocket is at 1mm ~ 3mm, be filled in the tube surfaces of pin portion section 5, the sandstone material particle diameter of II layer of sand pocket is at 3mm ~ 5mm, be filled between I layer of sand pocket and the hole wall of hole body 1, effectively can tackle the silt in water, prevent water stopping curtain seepage position from piping occurring.
Shutoff is carried out by filling rapid-hardening micro-expansion cement mortar 16 in described block section 4.Be mixed with appropriate micro-expanding agent in rapid-hardening micro-expansion cement mortar 16, ensure that block section can be closely knit, avoid shutoff not tight.
Water stopping curtain seepage flow guiding structure function of the present invention is achieved in that
1, borehole hole body 1: at Leakage of Foundation Pit position, adopt artificial or mechanical system borehole, hole body 1 scrapes out horizontal, and hole depth should be determined according to actual leakage scenarios, and hole body 1, through supporting and protection structure 19, undisturbed soil 18, digs to water-stop curtain 17 leak source position.Hole body 1 aperture is 15cm, within the scope of the end 700mm of hole body 1, do expanding treatment, and reaming aperture is 250mm.
2, assemble drainage tube 2: by pin portion section 5, the section of receiving 7, end segments 8 by connecting cylinder 6, adopt screw thread form to connect into drainage tube 2.Drainage tube 2 length should, according to hole depth, select multiple section of receiving 7 to connect.Section 5 top, pin portion of drainage tube 2 utilizes stopper 10 to carry out end socket, simultaneously at the two-layer Dense mesh screen 11 of pin portion section 5 surface parcel.Tube length is 50cm, and diameter is 10cm, and surface is provided with the circular hole 9 that multiple uniform diameter is 5mm.
3, drainage tube 2 is installed: the end first expanded at hole body first backfills the sandstone material of II layer of sand pocket that one deck level prepares, with the sandstone of particle diameter between 3 ~ 5mm.By the sandstone material of good for grating I layer of sand pocket, after loading sandbag with the sandstone of particle diameter between 1 ~ 3mm, sand pocket is wrapped in the pin portion section 5 of drainage tube 2, drainage tube 2 level puts into hole body 1, again backfill the sandstone material of II layer of sand pocket, until enlarged end backfill is full.Field fabrication rapid-hardening micro-expansion cement mortar 16, cement adopts rapid-hardening cement, and mixes appropriate microdilatancy Admixture, is backfilled in time in hole body 1 block section 4 after mortar stirs.Utilize expansion bolt 14 to be fixed in supporting and protection structure 19 by ring steel plate 12, ring steel plate 12 edge adopts leak stopping spirit 15 border shutoff.
4, drainage: after opening ball valve 13, can discharge leaking from water-stop curtain 17 seepage place.The water body got rid of can with container collection such as metal buckets, and utilize submersible pump to be evacuated to outside foundation ditch.
Claims (6)
1. a water stopping curtain seepage flow guiding structure, this vibrational power flow is at Leakage of Foundation Pit position, support construction, it is characterized in that: this structure is included in the hole body (1) that described Leakage of Foundation Pit position is arranged, drainage tube (2) is installed in hole body (1), drainage tube (2) comprises pin portion section (5) of end belt screw thread, the section of receiving (7), end segments (8), and adopt screwed connection by connecting cylinder (6), anti-filter water layer (3) is provided with in the periphery of described pin portion section (5), be provided with block section (4) in the periphery of the described section of receiving (7) and carry out shutoff, ball valve (13) is provided with in the side of described end segments (8), seepage place infiltration is got rid of by ball valve (13).
2. water stopping curtain seepage flow guiding structure according to claim 1, it is characterized in that: the surface of described pin portion section (5) is provided with multiple uniform circular hole (9), the center to center distance of every two circular holes (9) is 10mm, the end in pin portion section (5) is provided with stopper (10) and carries out shutoff, and pin portion section (5) is coated with two-layer Dense mesh screen (11).
3. water stopping curtain seepage flow guiding structure according to claim 1, is characterized in that: described in the section of receiving (7) to be connected into the body of multiple different length by connecting cylinder (6) for multiple section of receiving.
4. water stopping curtain seepage flow guiding structure according to claim 1, it is characterized in that: the outside weldings ring steel plate (12) of described end segments (8), the middle part of end segments (8) is provided with ball valve (13), ring steel plate (12) is fixed in supporting and protection structure (19) by expansion bolt (14), and is sealed by leak stopping spirit (15).
5. water stopping curtain seepage flow guiding structure according to claim 1, it is characterized in that: described anti-filter water layer (3) is divided into I, II two-layer sand pocket, every layer of sandstone material filling prepared by level, the sandstone material particle diameter of I layer of sand pocket is at 1mm ~ 3mm, be filled in the tube surfaces in pin portion section (5), the sandstone material particle diameter of II layer of sand pocket is at 3mm ~ 5mm, between the hole wall being filled in I layer of sand pocket and hole body (1), effectively can tackle the silt in water, prevent water stopping curtain seepage position from piping occurring.
6. water stopping curtain seepage flow guiding structure according to claim 1, is characterized in that: described block section (4) carry out shutoff by filling rapid-hardening micro-expansion cement mortar (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494401.7A CN104234065A (en) | 2014-09-24 | 2014-09-24 | Leakage drainage structure of waterproof curtain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410494401.7A CN104234065A (en) | 2014-09-24 | 2014-09-24 | Leakage drainage structure of waterproof curtain |
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| CN201410494401.7A Pending CN104234065A (en) | 2014-09-24 | 2014-09-24 | Leakage drainage structure of waterproof curtain |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895098A (en) * | 2015-06-24 | 2015-09-09 | 江苏省建筑科学研究院有限公司 | Piping blocking structure outside deep foundation pit underground diaphragm wall and grouting treatment method thereof |
| CN105297743A (en) * | 2015-11-03 | 2016-02-03 | 中国电建集团华东勘测设计研究院有限公司 | Diaphragm wall defect leakage water stop and drainage structure and construction method thereof |
| CN106545025A (en) * | 2017-01-10 | 2017-03-29 | 陈剑 | A kind of apparatus and method for being adapted to the routed sand quick drainage of sand bed water burst |
| CN108842779A (en) * | 2018-08-16 | 2018-11-20 | 天津核海源科技发展有限公司 | A kind of underground backwater structure sealing grouting stick |
| CN109706934A (en) * | 2019-01-18 | 2019-05-03 | 山东建勘集团有限公司 | Drapery injected device and its working method in a kind of artesian water stratum |
| CN110906085A (en) * | 2019-12-19 | 2020-03-24 | 长安大学 | Water plugging valve device and construction method thereof |
| CN112609754A (en) * | 2020-12-16 | 2021-04-06 | 中国建筑第四工程局有限公司 | Basement shear wall leakage blocking method and structure |
| CN113547647A (en) * | 2021-07-06 | 2021-10-26 | 上海市基础工程集团有限公司 | High-water-pressure large-thickness reinforced concrete rapid hole forming device and method |
| CN113882415A (en) * | 2021-11-09 | 2022-01-04 | 中国二十冶集团有限公司 | Water drainage method |
| CN114457825A (en) * | 2022-01-14 | 2022-05-10 | 上海建工二建集团有限公司 | Leakage emergency quick-assembly drainage tube and installation method thereof |
| CN115045343A (en) * | 2022-06-01 | 2022-09-13 | 上海宝冶集团有限公司 | Leakage guiding and stopping device for assembled deep foundation pit waterproof curtain and using method thereof |
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| CN204112350U (en) * | 2014-09-24 | 2015-01-21 | 天津一建建筑工程有限公司 | Water stopping curtain seepage flow guiding structure |
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| DE19604525C2 (en) * | 1996-02-08 | 1998-01-29 | Bauer Spezialtiefbau | High-lying waterproofing sole with construction pit enclosure |
| CN202012073U (en) * | 2011-04-08 | 2011-10-19 | 中国新兴保信建设总公司 | Draining device of foundation pit support surface aquitard |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895098A (en) * | 2015-06-24 | 2015-09-09 | 江苏省建筑科学研究院有限公司 | Piping blocking structure outside deep foundation pit underground diaphragm wall and grouting treatment method thereof |
| CN105297743A (en) * | 2015-11-03 | 2016-02-03 | 中国电建集团华东勘测设计研究院有限公司 | Diaphragm wall defect leakage water stop and drainage structure and construction method thereof |
| CN105297743B (en) * | 2015-11-03 | 2017-09-29 | 中国电建集团华东勘测设计研究院有限公司 | A kind of ground-connecting-wall defect seepage stops discharge structure and its construction method |
| CN106545025A (en) * | 2017-01-10 | 2017-03-29 | 陈剑 | A kind of apparatus and method for being adapted to the routed sand quick drainage of sand bed water burst |
| CN106545025B (en) * | 2017-01-10 | 2018-08-07 | 中交第三航务工程局有限公司南京分公司 | A kind of device and method being adapted to the routed husky quick drainage of sand bed water burst |
| CN108842779B (en) * | 2018-08-16 | 2024-04-26 | 天津核海源科技发展有限公司 | Underground back water structure water stop grouting rod |
| CN108842779A (en) * | 2018-08-16 | 2018-11-20 | 天津核海源科技发展有限公司 | A kind of underground backwater structure sealing grouting stick |
| CN109706934A (en) * | 2019-01-18 | 2019-05-03 | 山东建勘集团有限公司 | Drapery injected device and its working method in a kind of artesian water stratum |
| CN109706934B (en) * | 2019-01-18 | 2023-10-20 | 山东建勘集团有限公司 | Curtain grouting water plugging device in pressure-bearing water stratum and working method thereof |
| CN110906085A (en) * | 2019-12-19 | 2020-03-24 | 长安大学 | Water plugging valve device and construction method thereof |
| CN112609754A (en) * | 2020-12-16 | 2021-04-06 | 中国建筑第四工程局有限公司 | Basement shear wall leakage blocking method and structure |
| CN113547647A (en) * | 2021-07-06 | 2021-10-26 | 上海市基础工程集团有限公司 | High-water-pressure large-thickness reinforced concrete rapid hole forming device and method |
| CN113882415A (en) * | 2021-11-09 | 2022-01-04 | 中国二十冶集团有限公司 | Water drainage method |
| CN114457825A (en) * | 2022-01-14 | 2022-05-10 | 上海建工二建集团有限公司 | Leakage emergency quick-assembly drainage tube and installation method thereof |
| CN115045343A (en) * | 2022-06-01 | 2022-09-13 | 上海宝冶集团有限公司 | Leakage guiding and stopping device for assembled deep foundation pit waterproof curtain and using method thereof |
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Application publication date: 20141224 |