CN103526784A - Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall - Google Patents
Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall Download PDFInfo
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- CN103526784A CN103526784A CN201310508221.5A CN201310508221A CN103526784A CN 103526784 A CN103526784 A CN 103526784A CN 201310508221 A CN201310508221 A CN 201310508221A CN 103526784 A CN103526784 A CN 103526784A
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Abstract
The invention discloses a method for detecting and reinforcing a flexible connector of an ultra-deep underground continuous wall, and relates to the technical field of geotechnical engineering, in particular to the technical field of detection and reinforcement of the flexible connector of the ultra-deep underground continuous wall. The method comprises an improved technology of an acoustic transmission method combined with the specific grouting reinforcement. According to the method, the acoustic transmission method is adopted to detect the flexible connector of the ultra-deep underground continuous wall, the position and range of the quality problem of the connector are accurately located, and a made-to-order sounding pipe serves as a grouting pipe to carry out the specific grouting reinforcement. By means of the method, construction is convenient, no pollution is caused to environment, and the lateral rigidity and water stop performance of the flexible connector of the ultra-deep underground continuous wall can be improved effectively.
Description
Technical field
The present invention relates to Geotechnical Engineering field, relate in particular to a kind of ultra-deep underground continuous wall flexible joint and detect reinforcing technique field.
Background technology
Along with the underground space development degree of depth increases, diaphragm wall is widely used as one of the most effective foundation pit supporting construction form, and ultra-deep underground continuous wall emerges in multitude.Due to construction of diaphragm wall technological process, longitudinally adjacent two groove segment units exist inevitable construction joint, and construction joint often becomes the weak part of the super deep water soil pressure of opposing.In construction and use procedure, joint all should meet stressed and requirement (guaranteeing impermeability and the globality of body of wall) antiseepage, and it is simple to make every effort to construction, and the grooving of next unit groove section is not caused to difficulty.
Ultra-deep underground continuous wall construction joint mode has direct jointing, locking notch pipe joint, joint case joint and prefabricated units joint etc.In various terminal mode, locking notch pipe flexible joint is because construction is simple, cheap, applies comparatively extensive.But in work progress, exist unavoidable deviation, as grooving verticality, reinforcing cage hang deviation, the brush many factors such as wall is not thorough, especially in ultra-deep underground continuous wall constructing structure, the impact of this deviation is more remarkable, usually cause into the phenomenons such as wall work progress center tap folder mud, spillage, in Excavation Process, show as strength of joint deficiency, seepage water burst, the phenomenon such as wall sheet globality is poor.Have a strong impact on construction and the use of underground structure.
Conventional conventional method is difficult to ultra-deep underground continuous wall flexible joint construction quality to detect, and the construction reinforcement mode that flexible joint is taked, before being difficult to accomplish excavate, body of wall joint is processed in advance targetedly, often adopts passive soil stabilization afterwards.The present invention improves traditional sound wave transmission method, the wall reinforcement before can excavating targetedly when detecting body of wall joint.
Summary of the invention
Technical problem: the object of the invention is to provide a kind of ultra-deep underground continuous wall flexible joint to detect reinforcement means, sound wave transmission method after improvement is combined with grouting reinforcement technique targetedly, form of structure is simple, job practices is quick, cheap, can be before soil mass of foundation pit excavation the effective quality condition of detection ultra-deep underground continuous wall flexible joint, and can take effective reinforcement measure to reinforce simultaneously, can effectively improve ultra-deep underground continuous wall flexible joint lateral rigidity and sealing performance.
Technical scheme: a kind of ultra-deep underground continuous wall flexible joint of the present invention detects reinforcement means, described diaphragm wall comprises the first diaphragm wall and the second diaphragm wall, flexible joint place between the first diaphragm wall and the second diaphragm wall is provided with first sound test tube and rising tone test tube, and first sound test tube is positioned at the centre of flexible joint and is connected with the first reinforcing cage of the first diaphragm wall; Rising tone test tube is positioned at the both sides of flexible joint and is connected with the second reinforcing cage of the second diaphragm wall;
This detection reinforcement means comprises following implementation step:
The first step: make the first reinforcing cage, and a first sound test tube is welded in outside in the middle of the female joint of the first diaphragm wall, in the female joint of the first diaphragm wall, concreting forms a first complete diaphragm wall with snap close pipe gear;
Second step: extract snap close pipe, make the second reinforcing cage, and weld two rising tone test tubes in the male joint inner side of the second diaphragm wall, concreting forms the second diaphragm wall;
The 3rd step: the concrete of the first diaphragm wall and the second diaphragm wall reaches to be set after intensity, takes out the inflation rubber membrane of first sound test tube and rising tone test tube inside, adopts sound wave transmission method to scan underground continuous wall connector;
The 4th step: according to the scanning result analyzing adapter concrete quality uniformity coefficient that ultra sonic scanner region is obtained;
The 5th step: analyze conclusion according to the 4th step, select targetedly injecting paste material, again utilize first sound test tube and rising tone test tube as Grouting Pipe, ultra-deep underground continuous wall flexible joint is carried out to consolidation process.
Described first sound test tube or rising tone test tube comprise slurry outlet, inflation rubber membrane, closed end, charging aperture, and its top is charging aperture, and lower end is closed end, and side is slurry outlet, and inflation rubber membrane is arranged in the pipe of first sound test tube or rising tone test tube.
Beneficial effect: the present invention adopts above technical scheme, possesses compared with prior art following advantage: the present invention has realized the detection to ultra-deep underground continuous wall connector quality with sound wave transmission method, can detect the ultra-deep underground continuous wall flexible joint of 60 meters of degree of depth, and position and scope that accurately landing nipple quality problems occur, special sound detecting pipe after improvement can be used as consolidation grouting pipe simultaneously and uses, according to testing result, select grouting and reinforcing mode targetedly, can before soil excavation, effectively improve intensity and the sealing performance of flexible joint.Special sound detecting pipe is made simple, easy construction, environmentally safe.
Accompanying drawing explanation
Fig. 1: ultra-deep underground continuous wall flexible joint sound wave transmission method detects reinforces floor map.
Fig. 2: acoustic wave transmission sweep limits floor map.
Fig. 3: special sound detecting pipe elevational schematic view.
Fig. 4: special sound detecting pipe sectional schematic diagram.
In above figure, have: the first diaphragm wall 1; The second diaphragm wall 2; The first reinforcing cage 3; The second reinforcing cage 4; Snap close pipe 5; First sound test tube 6; Rising tone test tube 7; Ultra sonic scanner region 8; Slurry outlet 9; Inflation rubber membrane 10; Closed end 11; Charging aperture 12.
The specific embodiment
Below in conjunction with accompanying drawing 1,2 pairs of technical schemes of the present invention of accompanying drawing, be elaborated:
A kind of ultra-deep underground continuous wall flexible joint of the present invention detects reinforcing technique, comprises the first diaphragm wall 1, the second diaphragm wall 2, the first reinforcing cage 3, the second reinforcing cage 4, first sound test tube 6; Rising tone test tube 7, first sound test tube 6 or rising tone test tube 7 comprise slurry outlet 9, inflation rubber membrane 10, closed end 11, charging aperture 12.
As shown in Figure 1, a kind of ultra-deep underground continuous wall flexible joint of the present invention detects reinforcing technique, in the middle of the female joint of the first reinforcing cage 3, first sound test tube of outside welding 6 forms underground the first diaphragm wall 1, the hero of the second reinforcing cage 4 connects two rising tone test tubes of inner side welding 7 and forms underground the second diaphragm wall 2, utilizes first sound test tube 6; Rising tone test tube 7 is carried out acoustic wave transmission scanning detection tabs construction quality, according to joint testing result, selects in " superfine type list liquid slurry " or " ordinary Portland cement list liquid slurry ", reuses first sound test tube 6; Rising tone test tube 7 is carried out joint reinforcing as Grouting Pipe, and " superfine type list liquid slurry " be the seepage flow of blocking groundwater effectively, and " ordinary Portland cement list liquid slurry " can play the effect that improves intensity and globality.
A kind of ultra-deep underground continuous wall flexible joint of the present invention detects reinforcement means, comprises the steps:
The first step: make the first reinforcing cage 3, and a first sound test tube 6 is welded in outside in the middle of female joint, in the female joint of the first diaphragm wall 1, concreting forms underground the first diaphragm wall 1 with snap close pipe 5 gears;
Second step: extract snap close pipe 5, make the second reinforcing cage 4, and connect two rising tone test tubes 7 of inner side welding at hero, concreting forms the second diaphragm wall 2;
The 3rd step: the concrete of the first diaphragm wall 1 and the second diaphragm wall 2 reaches after prescribed strength, takes out first sound test tube 6; The inflation rubber membrane 10 of rising tone test tube 7 inside, adopts sound wave transmission method to scan underground continuous wall connector;
The 4th step: according to the scanning result analyzing adapter concrete quality uniformity coefficient that ultra sonic scanner region 8 is obtained;
The 5th step: analyze conclusion according to the 4th step, select targetedly injecting paste material, again utilize first sound test tube 6; Rising tone test tube 7, as Grouting Pipe, is carried out consolidation process to ultra-deep underground continuous wall flexible joint.
Claims (2)
1. a ultra-deep underground continuous wall flexible joint detects reinforcement means, it is characterized in that described diaphragm wall comprises the first diaphragm wall (1) and the second diaphragm wall (2), flexible joint place between the first diaphragm wall (1) and the second diaphragm wall (2) is provided with first sound test tube (6) and rising tone test tube (7), and first sound test tube (6) is positioned at the centre of flexible joint and is connected with first reinforcing cage (3) of the first diaphragm wall (1); Rising tone test tube (7) is positioned at the both sides of flexible joint and is connected with second reinforcing cage (4) of the second diaphragm wall (2);
This detection reinforcement means comprises following implementation step:
The first step: make the first reinforcing cage (3), and a first sound test tube (6) is welded in outside in the middle of the female joint of the first diaphragm wall (1), with snap close pipe (5) gear, in the female joint of the first diaphragm wall (1), concreting forms complete first diaphragm wall (1);
Second step: extract snap close pipe (5), make the second reinforcing cage (4), and weld two rising tone test tubes (7) in the male joint inner side of the second diaphragm wall (2), concreting forms the second diaphragm wall (2);
The 3rd step: the concrete of the first diaphragm wall (1) and the second diaphragm wall (2) reaches to be set after intensity, take out the inner inflation rubber membrane (10) of first sound test tube (6) and rising tone test tube (7), adopt sound wave transmission method to scan underground continuous wall connector;
The 4th step: according to the scanning result analyzing adapter concrete quality uniformity coefficient that ultra sonic scanner region (8) are obtained;
The 5th step: analyze conclusion according to the 4th step, select targetedly injecting paste material, again utilize first sound test tube (6) and rising tone test tube (7) as Grouting Pipe, ultra-deep underground continuous wall flexible joint is carried out to consolidation process.
2. ultra-deep underground continuous wall flexible joint according to claim 1 detects reinforcement means, it is characterized in that described first sound test tube (6) or rising tone test tube (7) comprise slurry outlet (9), inflation rubber membrane (10), closed end (11), charging aperture (12), its top is charging aperture (12), lower end is closed end (11), side is slurry outlet (9), and inflation rubber membrane (10) is arranged in the pipe of first sound test tube (6) or rising tone test tube (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310508221.5A CN103526784A (en) | 2013-10-24 | 2013-10-24 | Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall |
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| CN201310508221.5A CN103526784A (en) | 2013-10-24 | 2013-10-24 | Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall |
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| CN103526784A true CN103526784A (en) | 2014-01-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442420A (en) * | 2018-03-21 | 2018-08-24 | 大连理工大学 | Diaphram wall defect inspection method based on subregion ultrasonic tomography |
| CN108894259A (en) * | 2018-07-19 | 2018-11-27 | 中铁六局集团有限公司 | A kind of method of ultrasound examination subway construction of diaphragm wall quality |
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| JPH07127051A (en) * | 1993-11-08 | 1995-05-16 | Taisei Corp | Construction and erecting method for reinforcement cage for continuous underground wall execution |
| JPH09279571A (en) * | 1996-04-10 | 1997-10-28 | Chem Grouting Co Ltd | Continuous wall construction method |
| CN1793527A (en) * | 2005-12-28 | 2006-06-28 | 上海市第一建筑有限公司 | Method for construction of underground continuous steel jacket box |
| CN201981532U (en) * | 2011-04-02 | 2011-09-21 | 中铁十二局集团建筑安装工程有限公司 | Bearing type super deep underground continuous wall adaptor |
| CN102296617A (en) * | 2010-11-11 | 2011-12-28 | 东南大学 | Post-grouting reinforcement construction method of flexible joints of diaphragm walls |
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2013
- 2013-10-24 CN CN201310508221.5A patent/CN103526784A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127051A (en) * | 1993-11-08 | 1995-05-16 | Taisei Corp | Construction and erecting method for reinforcement cage for continuous underground wall execution |
| JPH09279571A (en) * | 1996-04-10 | 1997-10-28 | Chem Grouting Co Ltd | Continuous wall construction method |
| CN1793527A (en) * | 2005-12-28 | 2006-06-28 | 上海市第一建筑有限公司 | Method for construction of underground continuous steel jacket box |
| CN102296617A (en) * | 2010-11-11 | 2011-12-28 | 东南大学 | Post-grouting reinforcement construction method of flexible joints of diaphragm walls |
| CN201981532U (en) * | 2011-04-02 | 2011-09-21 | 中铁十二局集团建筑安装工程有限公司 | Bearing type super deep underground continuous wall adaptor |
Non-Patent Citations (1)
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| 中船第九设计研究院工程有限公司: "《直挂云帆济沧海 中国船舶工业工程建设论文集》", 31 May 2008, 上海科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442420A (en) * | 2018-03-21 | 2018-08-24 | 大连理工大学 | Diaphram wall defect inspection method based on subregion ultrasonic tomography |
| CN108894259A (en) * | 2018-07-19 | 2018-11-27 | 中铁六局集团有限公司 | A kind of method of ultrasound examination subway construction of diaphragm wall quality |
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Application publication date: 20140122 |