CN203924137U - A kind of diaphragm wall serious leakage plugging structure - Google Patents

A kind of diaphragm wall serious leakage plugging structure Download PDF

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Publication number
CN203924137U
CN203924137U CN201420261355.1U CN201420261355U CN203924137U CN 203924137 U CN203924137 U CN 203924137U CN 201420261355 U CN201420261355 U CN 201420261355U CN 203924137 U CN203924137 U CN 203924137U
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CN
China
Prior art keywords
diaphragm wall
water conservancy
conservancy diversion
grouting pipe
steel plate
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Expired - Lifetime
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CN201420261355.1U
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Chinese (zh)
Inventor
万雨晴
贾贯乾
耿会勇
李成勋
李爱地
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China Railway 15th Bureau Group Co Ltd
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China Railway 15th Bureau Group Co Ltd
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Priority to CN201420261355.1U priority Critical patent/CN203924137U/en
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Publication of CN203924137U publication Critical patent/CN203924137U/en
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Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a kind of diaphragm wall serious leakage plugging structure, comprise prefabricated shutoff steel plate, the water conservancy diversion Grouting Pipe being connected with prefabricated shutoff Plate Welding, hydro-expansive rubber and repair layer, at breakthrough place, dig and have circle or square groove, and in diaphragm wall, draw through hole, inject water conservancy diversion Grouting Pipe, water conservancy diversion Grouting Pipe is obliquely installed, by expansion bolt, prefabricated shutoff steel plate is arranged to diaphragm wall inner side, at prefabricated shutoff steel plate periphery outsourcing hydro-expansive rubber, in diaphragm wall outside, be marked with slip casting occluding body with soil layer junction, at prefabricated shutoff steel plate arranged outside repair layer.The beneficial effects of the utility model are: easy construction, save man-hour, and accelerate shutoff speed.Guarantee the effect of shutoff, also improved the globality of restoring area.Can shorten the length of water conservancy diversion Grouting Pipe, not need to remove water conservancy diversion Grouting Pipe, in the time of can preventing from removing water conservancy diversion Grouting Pipe, destroy occluding body, improve restoring area globality simultaneously.

Description

A kind of diaphragm wall serious leakage plugging structure
Technical field
The utility model relates to a kind of leakage plugging structure, relates in particular a kind of diaphragm wall serious leakage plugging structure, belongs to underground engineering field.
Background technology
Development along with urban construction, highrise building, heavy construction and all kinds of underground installation are increasing, certainly will deepen its basis and bury underground, add the factors such as environment around of foundation construction scene and construction plant condition, going along with sb. to guard him of deep foundation ditch seemed to more and more important.And diaphragm wall is exactly structural wall as bracing of foundation pit wall and underground structure, it is a technology the most frequently used in present underground engineering construction.
Diaphragm wall excavation technology originates from Europe, according to well-digging and oil drilling, use the method evolving development of mud and tremie concrete to get up, first nineteen fifty has adopted slurry coat method construction of diaphragm wall at Milan, ITA, 50~sixties of 20th century, this technology was promoted at western developed country and the former Soviet Union, became effective technology in underground construction and Construction of Deep Foundation.
Diaphragm wall adopts and uses on the ground trench machine along the periphery axis of deep excavation project, under mud off condition, excavate out a long and narrow deep trouth, after clear groove, install reinforcing cage in groove, then builds up a unit groove section with tremie method underwater concreting with tremie method, carries out so piecemeal, underground, build up continuous steel concrete wall one, can not only be as intercepting water, antiseepage, load-bearing, water-retaining structure can also play the support action to Adjacent Buildings basis.The advantage of diaphragm wall has: Construction Vibration is little, wall stiffness is large, good integrity, speed of application is fast, can economize the cubic metre of earth and stone, can be used for building in intensive building deep foundation pit support and carry out reverse construction, can be used under various geological conditionss, comprising in sandy soil layer, the sandy gravel stratum below particle diameter 50mm and constructing etc.Be applicable to basement, underground store, parking lot, oil cellar, retaining wall, the deep foundation of highrise building, the reverse construction space enclosing structure of construction of buildings, the dark pond of industrial construction, hole, vertical shaft etc.
Yet undergroundly continuously due to self controllability, be easy to occur the situation of percolating water, cause serious quality problems, produce potential safety hazard.Cause the reason of underground continuous seepage to mainly contain following some reason: (1) adjacent two width subterranean wall perpendicularity deviations, cause two width diaphragm wall jags and occur larger space, there is percolating water, gush sand.(2) adjacent two width subterranean wall joint joints are not thoroughly processed (brush wall) totally, cause seam percolating water, gush sand.(3) concrete of not removing streams in the seam of subterranean wall, can form the channel of percolating water.(4) wall filling concrete process, due to collapse hole, body of wall folder mud, causes percolating water, gushes sand.
Present stage occurs that to diaphragm wall the close measure under slight seepage condition has a lot, and the impact of slight seepage is relatively little, general close measure is all comparatively reliable, but for the measure of the serious leakage occurring, existing leak-blocking construction method is difficult to solution serious leakage is carried out effective shutoff, easily occurs large-area reinforcement repeatedly, affects the problems such as safety of surrounding environment.Chinese patent (publication No.: CN101914917A, the day for announcing: 2010.12.15) disclose a kind of excavation of subway foundation pit in soft soil area anti-seepage and leak-blocking construction method, it is the construction technology for plugging to serious leakage point, in breakthrough outside, adopt high-pressure rotary-spray technique to reinforce, but the reinforcing body forming due to high-pressure rotary-spray has uncertain, discontinuous feature, cannot guarantee hole to be full of completely, surrounding environment is easily polluted in the construction of the unstable and high-pressure rotary-spray of plugging effect.
The plugging structure of a kind of fast effective environmental protection of needs when the situation of seepage appears in diaphragm wall, carries out shutoff to infiltration point in sum.Given this, for when serious leakage appears in diaphragm wall, can effectively carry out as early as possible shutoff operation, need badly at present invention a kind of plugging effect good, construction operation is fast, has the diaphragm wall serious leakage plugging structure of good technical economic benefit.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of rational in infrastructure, the diaphragm wall serious leakage plugging structure that plugging effect is good, speed of application is fast.
This diaphragm wall serious leakage plugging structure, comprise prefabricated shutoff steel plate, the water conservancy diversion Grouting Pipe being connected with prefabricated shutoff Plate Welding, hydro-expansive rubber and repair layer, at breakthrough place, dig and have circle or square groove, and in diaphragm wall, draw through hole, inject water conservancy diversion Grouting Pipe, water conservancy diversion Grouting Pipe is obliquely installed, by expansion bolt, prefabricated shutoff steel plate is arranged to diaphragm wall inner side, at prefabricated shutoff steel plate periphery outsourcing hydro-expansive rubber, in diaphragm wall outside, be marked with slip casting occluding body with soil layer junction, at prefabricated shutoff steel plate arranged outside repair layer.
As preferably: described water conservancy diversion Grouting Pipe is stretched out diaphragm wall outside 10~25mm, and water conservancy diversion Grouting Pipe is obliquely installed.
As preferably: by expansion bolt, prefabricated shutoff steel plate is arranged to diaphragm wall inner side.
As preferably: connect dismountable valve end after described water conservancy diversion Grouting Pipe, both are threaded.
As preferably: by shutoff spirit, water conservancy diversion Grouting Pipe is set and seals.
The beneficial effects of the utility model are:
(1) water conservancy diversion Grouting Pipe tilts, and during draining, as conduction pipe, during slip casting shutoff, as Grouting Pipe, easy construction, saves man-hour, accelerates shutoff speed.
(2) adopt the prefabricated shutoff steel plate of outsourcing hydro-expansive rubber to be fixed on diaphragm wall inner side, guaranteed the effect of shutoff, also improved the globality of restoring area.
(3) after water conservancy diversion Grouting Pipe, connect dismountable valve end, can shorten the length of water conservancy diversion Grouting Pipe, by it together with prefabricated shutoff Plate Welding, the outer repair layer of steel plate just can cover water conservancy diversion Grouting Pipe, make it just stay in body of wall, do not need to remove water conservancy diversion Grouting Pipe, in the time of can preventing from removing water conservancy diversion Grouting Pipe, destroy occluding body, improve restoring area globality simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model diaphragm wall serious leakage plugging structure sectional drawing;
Fig. 2 is the utility model draining structural representation;
Fig. 3 is the utility model slip casting operation structure schematic diagram;
Description of reference numerals: diaphragm wall 1, soil layer 2, slip casting occluding body 3, through hole 4, repair layer 5, expansion bolt 6, prefabricated shutoff steel plate 7, hydro-expansive rubber 8, water conservancy diversion Grouting Pipe 9, water conservancy diversion Grouting Pipe sealing 10, circle or square groove 11, dismountable valve end 12, infiltration point 13.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described further.Although the utility model is described in connection with preferred embodiment, should know, do not represent that the utility model is limited in described embodiment.On the contrary, the utility model is by alternative, modified and the equivalent contained in the scope of the present utility model that can be included in attached claims restriction.
The fluting of diaphragm wall body draws hole construction technology, in the present embodiment such as welding procedure technical requirements between water conservancy diversion Grouting Pipe and shutoff steel plate, is not repeated, and specifically sets forth the embodiment that the utility model relates to structure.
The diaphragm wall serious leakage plugging structure of the present embodiment, comprise prefabricated shutoff steel plate 7, the water conservancy diversion Grouting Pipe 9 being welded to connect with prefabricated shutoff steel plate 7, hydro-expansive rubber 8 and repair layer 5, first at breakthrough 13 places, dig circle or square groove 11, and in diaphragm wall, draw through hole 4, inject water conservancy diversion Grouting Pipe 9, water conservancy diversion Grouting Pipe 9 is obliquely installed, by expansion bolt 6, prefabricated shutoff steel plate 7 is arranged to diaphragm wall 1 inner side, at prefabricated shutoff steel plate 7 periphery outsourcing hydro-expansive rubbers 8, first draining grouting behind shaft or drift lining slip casting occluding body 3 outside diaphragm wall, at prefabricated shutoff steel plate 7 arranged outside repair layers 5.
Fig. 1 is the utility model diaphragm wall serious leakage plugging structure sectional drawing.Shown in Fig. 1, diaphragm wall serious leakage plugging structure comprises prefabricated shutoff steel plate 7, with the water conservancy diversion Grouting Pipe 9 that prefabricated shutoff steel plate 7 is welded to connect, hydro-expansive rubber 8, expansion bolt 6 and repair layer 5.
Fig. 2 is the utility model draining structural representation, Fig. 3 is the utility model slip casting operation structure schematic diagram, with reference to Fig. 2, Fig. 3, structure when diaphragm wall serious leakage plugging structure carries out water conservancy diversion and slip casting operation comprises: prefabricated shutoff steel plate 7, the water conservancy diversion Grouting Pipe 9 being welded to connect with prefabricated shutoff steel plate 7, hydro-expansive rubber 8, expansion bolt 6 and dismountable valve end 12.
Work progress is as follows: at breakthrough 13 places, and the circular trough 11 that the cutting length of side is 600mm, the degree of depth is 200mm; In Kai Yin hole, center, drawing bore dia is 50mm, with horizontal plane angle at 45 °.
By prefabricated shutoff steel plate 7 center drillings, aperture is slightly larger than water conservancy diversion Grouting Pipe 9, the water conservancy diversion Grouting Pipe that is 35mm by diameter 9 welds together with prefabricated shutoff steel plate 7 through after centre bore, and 7 one-tenth 45 ° of inclination angles of water conservancy diversion Grouting Pipe 9 and prefabricated shutoff steel plate, are obliquely installed water conservancy diversion Grouting Pipe 9;
Prefabricated shutoff steel plate 7 outsourcing hydro-expansive rubbers 8, are arranged at diaphragm wall 1 inner side by expansion bolt 6 by prefabricated shutoff steel plate 7, and now water conservancy diversion Grouting Pipe 9 is slant setting, and water conservancy diversion Grouting Pipe 9 will be stretched out diaphragm wall 1 outside 10~25mm;
Be threaded connection water conservancy diversion Grouting Pipe 9 and dismountable valve end 12, pipeline end is drawn outside diaphragm wall 1 metope, then carry out draining;
Beginning slip casting operation after draining completes, forms slip casting occluding body 3 in diaphragm wall 1 wall outer side;
Dismounting dismountable valve end 12, and seal 10 by shutoff spirit shutoff Grouting Pipe interruption-forming water conservancy diversion Grouting Pipe; With concrete at steel plate arranged outside repair layer 5.

Claims (5)

1. a diaphragm wall serious leakage plugging structure, it is characterized in that: comprise prefabricated shutoff steel plate (7), the water conservancy diversion Grouting Pipe (9) being welded to connect with prefabricated shutoff steel plate (7), hydro-expansive rubber (8) and repair layer (5), at breakthrough (13), locate to dig and have circle or square groove (11), and in diaphragm wall, draw through hole (4), inject water conservancy diversion Grouting Pipe (9), water conservancy diversion Grouting Pipe (9) is obliquely installed, by expansion bolt (6), prefabricated shutoff steel plate (7) is arranged to diaphragm wall (1) inner side, at prefabricated shutoff steel plate (7) periphery outsourcing hydro-expansive rubber (8), in diaphragm wall outside, be marked with slip casting occluding body (3) with soil layer (2) junction, at prefabricated shutoff steel plate (7) arranged outside repair layer (5).
2. diaphragm wall serious leakage plugging structure according to claim 1, is characterized in that: described water conservancy diversion Grouting Pipe (9) is stretched out diaphragm wall outside 10~25mm, and water conservancy diversion Grouting Pipe (9) is obliquely installed.
3. diaphragm wall serious leakage plugging structure according to claim 1, is characterized in that: by expansion bolt (6), prefabricated shutoff steel plate (7) is arranged to diaphragm wall (1) inner side.
4. diaphragm wall serious leakage plugging structure according to claim 1, is characterized in that: after described water conservancy diversion Grouting Pipe (9), connect dismountable valve end (12), both are threaded.
5. diaphragm wall serious leakage plugging structure according to claim 1, is characterized in that: by shutoff spirit, water conservancy diversion Grouting Pipe sealing (10) is set.
CN201420261355.1U 2014-05-21 2014-05-21 A kind of diaphragm wall serious leakage plugging structure Expired - Lifetime CN203924137U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN106049868A (en) * 2016-07-01 2016-10-26 重庆市铜梁区长进防水材料厂 Indoor leakage-prevention construction method
CN107630472A (en) * 2017-10-31 2018-01-26 中冶天工集团有限公司 Through the antipriming of TRD uniform thickness Soil-cement diaphragm walls
CN110080311A (en) * 2019-03-18 2019-08-02 广西大学 A kind of method of diaphram wall metope leak stopping
CN111088802A (en) * 2020-01-19 2020-05-01 长江勘测规划设计研究有限责任公司 New and old ground wall interface processing structure and processing method thereof
CN114250800A (en) * 2021-12-31 2022-03-29 北京市政建设集团有限责任公司 Treatment method for seepage of jet grouting pile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN106049868A (en) * 2016-07-01 2016-10-26 重庆市铜梁区长进防水材料厂 Indoor leakage-prevention construction method
CN107630472A (en) * 2017-10-31 2018-01-26 中冶天工集团有限公司 Through the antipriming of TRD uniform thickness Soil-cement diaphragm walls
CN110080311A (en) * 2019-03-18 2019-08-02 广西大学 A kind of method of diaphram wall metope leak stopping
CN111088802A (en) * 2020-01-19 2020-05-01 长江勘测规划设计研究有限责任公司 New and old ground wall interface processing structure and processing method thereof
CN111088802B (en) * 2020-01-19 2024-05-24 长江勘测规划设计研究有限责任公司 New and old ground wall connection interface processing structure and processing method thereof
CN114250800A (en) * 2021-12-31 2022-03-29 北京市政建设集团有限责任公司 Treatment method for seepage of jet grouting pile

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Granted publication date: 20141105