CN103898927B - Ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls - Google Patents
Ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls Download PDFInfo
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- CN103898927B CN103898927B CN201410166105.4A CN201410166105A CN103898927B CN 103898927 B CN103898927 B CN 103898927B CN 201410166105 A CN201410166105 A CN 201410166105A CN 103898927 B CN103898927 B CN 103898927B
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Abstract
Ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls, it relates to a kind of ground-connecting-wall joint and construction method thereof.There is cell wall out of plumb for solving existing snap close pipe construction in the present invention, snap close pipe is installed exists deflection, not in place, and snap close pipe is difficult to fixing and is difficult to grasp the problem of the time of pulling out snap close pipe.Device: two blocks of side plates are fixed as one by web along its length, the cross section of ground-connecting-wall joint is " H " shape, the lower end of two blocks of side plates is all processed with the basil, uniformly along its length on web be processed with multiple manhole, two cast steel balancing weights are fixed on web manhole by bolt and nut; Method: one, construction of guide wall; Two, position is determined; Three, clamping device is assembled; Four, the ground-connecting-wall joint press-in soil body; Five, grip unit is removed; Six, groove, pouring concrete under clear groove, reinforcing bar cage hoisting; Seven, concrete strength directly carries out after reaching requirement facing groove excavation construction.The present invention is used for ground-connecting-wall construction.
Description
Technical field
The present invention relates to a kind of ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls, belong to ground-connecting-wall structure construction field.
Background technology
At present, ground-connecting-wall introduces domestic a kind of underground enclosed structure form in 1958.Because ground-connecting-wall wall stiffness is large, bearing capacity is high, barrier performance is good, can be used for Counter procedure construction, and be applicable to various foundation condition, be widely used in a lot of aspects of the various Foundation Designs such as subway, coal, municipal administration.It is the continuous print underground wall body that there is antiseepage (water), keep off soil and weight-bearing function.
Construction method of underground continuous wall is as follows: measure, build and lead wall, fabrication of reinforcing cage, slurrying, grooving, clear groove, lower snap close pipe, reinforcing bar cage hoisting, downcomer concreting, pull out snap close pipe.Wherein, snap close pipe construction is a bottleneck in ground-connecting-wall construction all the time.Owing to limiting to by ground-connecting-wall construction technology, in snap close pipe construction, mainly there is following problem:
1, cell wall out of plumb, snap close pipe is installed exists deflection, situation not in place:
Due to reasons such as artificial, machinery, geological conditionss, strictly can not put in place by design when causing snap close pipe to transfer installation, and then affect follow-up reinforcing cage installation quality, the situation generation such as after snap close pipe back sand material fills concreting not in place, to stream;
2, snap close pipe is difficult to fix, snap close pipe displacement so that leak, seep water when causing subsequent construction:
After transferring snap close pipe, back fills sandstone density to be difficult to ensure, causes during concreting and is shifted, stream, affect wall quality, even cause percolating water accident to occur;
3, be difficult to grasp the time of pulling out snap close pipe:
It is crucial for working the grasp of pulling out the snap close pipe time, and it is too early to work the time of pulling out, and quality accident can be caused to occur because concrete is solidifying, works the time of pulling out to pass party because of concrete bond stress and cause greatly snap close pipe to be difficult to extract even break and to run affairs therefore occur.
To sum up, there is cell wall out of plumb in existing snap close pipe construction, and snap close pipe is installed exists deflection, not in place, and snap close pipe is difficult to fixing and is difficult to grasp the problem of the time of pulling out snap close pipe.
Summary of the invention
Cell wall out of plumb is there is in the present invention for solving existing snap close pipe construction, snap close pipe is installed exists deflection, not in place, snap close pipe is difficult to the problem fixing and be difficult to grasp the time of pulling out snap close pipe, and then provides a kind of ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls.
The present invention solves the problems of the technologies described above the technical scheme taked to be:
Construction method for diaphragm walls of the present invention realizes according to following steps:
Step one, construction of guide wall: strict control construction of guide wall quality;
Step 2, determine position: connect the locations of structures of wall joint and the control line box tick lables of cast-in-place ground-connecting-wall section definitely;
Step 3, clamping device is assembled on ground-connecting-wall joint;
Step 4, the ground-connecting-wall joint being provided with clamping device to be sling, the ground-connecting-wall joint being provided with clamping device is inserted in the vertical pile press press mounting hole of static(al), stake position is adjusted to the control point, stake position determined in step 2, implement to press-fit the construction of the incision soil body;
Step 5, along with ground-connecting-wall joint press-in the soil body the degree of depth, progressively remove grip unit from the bottom to top, until piling completes;
When step 6, local company wall joint sequential production complete four width, the uniform setting successively along its length of four width ground-connecting-wall joints, first width ground-connecting-wall joint top is welded with the second width ground-connecting-wall joint top connecting reinforcement, 3rd width ground-connecting-wall joint top is connected with the 4th width ground-connecting-wall joint top reinforcement welding, then groover groove under clear groove, reinforcing bar cage hoisting between the second width ground-connecting-wall joint and the 3rd width ground-connecting-wall joint is adopted, pouring concrete, connecting reinforcement cuts off after having constructed by all connection walls;
Before step 7, concrete strength in step 6 reach designing requirement, carry out other non-adjacent wall width constructions, concrete strength directly carries out after reaching requirement facing groove excavation construction.
Ground-connecting-wall joint comprises web and two blocks of side plates, two blocks of side plates are parallel and be oppositely arranged, two blocks of side plates are fixed as one by web along its length, two blocks of side plates are all vertical with web to be arranged, the cross section of ground-connecting-wall joint is " H " shape, the lower end of two blocks of side plates is all processed with the basil, the width of web is 550 ~ 650mm, uniformly along its length on web be processed with multiple manhole, the aperture of manhole is 100 ~ 110mm, and the center to center distance of adjacent two manholes is 1750 ~ 1850mm.
Clamping device forms by organizing grip unit more, often organize grip unit and comprise two cast steel balancing weights, two cast steel balancing weights are fixed on web manhole by bolt and nut, and two cast steel balancing weights are symmetrical arranged about web, and many group grip unit are along the uniform setting of length direction of web.
The invention has the beneficial effects as follows:
Ground-connecting-wall joint of the present invention, the clamping device matched with it and construction method for diaphragm walls instead of existing snap close pipe and construction method thereof, after the soil body cut by ground-connecting-wall joint of the present invention, the clamping device matched with it, the soil body itself stirs without secondary, compared with existing snap close pipe and construction method thereof, the soil body density of ground-connecting-wall joint is reliable, streams the generation of phenomenon after avoiding pouring concrete;
Ground-connecting-wall joint of the present invention can field fabrication, efficiently solves the problem of transport and on-site hoisting;
Ground-connecting-wall joint of the present invention, after press-in soil body certain depth, is progressively removed grip unit from the bottom to top, compared with existing snap close pipe construction method, has been solved a difficult problem of pulling out snap close pipe;
After the clamping device matched with ground-connecting-wall joint of the present invention is removed, can also be installed on another ground-connecting-wall joint to be pressed into, recycle, energy-conserving and environment-protective;
Ground-connecting-wall joint construction method of the present invention relies on static pressure installation by the ground-connecting-wall joint press-in soil body, compared with existing snap close pipe construction method, greatly saves the duration, thus reduces cost of manufacture significantly.
Accompanying drawing explanation
Fig. 1 is the structural representation of ground-connecting-wall joint of the present invention, the overall structure schematic diagram of clamping device that Fig. 2 is ground-connecting-wall joint of the present invention and matches with it, Fig. 3 is the construction technology sketch (in figure 4-connecting reinforcement, 5-cast mixed concrete, 6-reinforcing cage, 7-ground level) of ground-connecting-wall joint construction method of the present invention.
Detailed description of the invention
Detailed description of the invention one: as shown in Figures 1 to 3, the construction method step of the ground-connecting-wall joint of present embodiment is as follows:
Step one, construction of guide wall: construction of guide wall is identical with existing ground-connecting-wall construction of guide wall method, strict control construction of guide wall quality;
Step 2, determine position: connect the locations of structures of wall joint and the control line box tick lables of cast-in-place ground-connecting-wall section definitely;
Step 3, clamping device is assembled on ground-connecting-wall joint;
Step 4, the ground-connecting-wall joint being provided with clamping device to be sling, the ground-connecting-wall joint being provided with clamping device is inserted in the vertical pile press press mounting hole of static(al), stake position is adjusted to the control point, stake position determined in step 2, implement to press-fit the construction of the incision soil body;
Step 5, along with ground-connecting-wall joint press-in the soil body the degree of depth, from the bottom to top progressively remove grip unit 3, until piling completes;
When step 6, local company wall joint sequential production complete four width, the uniform setting successively along its length of four width ground-connecting-wall joints, first width ground-connecting-wall joint top is welded with the second width ground-connecting-wall joint top connecting reinforcement, 3rd width ground-connecting-wall joint top is connected with the 4th width ground-connecting-wall joint top reinforcement welding, then groover groove under clear groove, reinforcing bar cage hoisting between the second width ground-connecting-wall joint and the 3rd width ground-connecting-wall joint is adopted, pouring concrete, connecting reinforcement cuts off after having constructed by all connection walls;
Before step 7, concrete strength in step 6 reach designing requirement, carry out other non-adjacent wall width constructions, concrete strength directly carries out after reaching requirement facing groove excavation construction.
The ground-connecting-wall joint of present embodiment comprises web 1 and two blocks of side plates 2, two blocks of side plates 2 are parallel and be oppositely arranged, two blocks of side plates 2 are fixed as one by web 1 along its length, two blocks of side plates 2 are all vertical with web 1 to be arranged, the cross section of ground-connecting-wall joint is " H " shape, the lower end of two blocks of side plates 2 is all processed with basil 2-1, the width W of web 1 is 550 ~ 650mm, uniformly along its length on web 1 be processed with multiple manhole 1-1, the aperture of manhole 1-1 is 100 ~ 110mm, and the center to center distance L of adjacent two manhole 1-1 is 1750 ~ 1850mm;
The clamping device matched with ground-connecting-wall joint of present embodiment comprises organizes grip unit 3 more, often organize grip unit 3 and comprise two cast steel balancing weight 3-1, two cast steel balancing weight 3-1 are fixed on web 1 manhole 1-1 by bolt and nut, two cast steel balancing weight 3-1 are symmetrical arranged about web 1, and many group grip unit 3 are along the uniform setting of length direction of web 1.
The stud external diameter that the clamping device matched with ground-connecting-wall joint is connected with ground-connecting-wall joint is 100mm, and above-mentioned stud is studs, and the tapped bore of stud is 100mm.
Ground-connecting-wall joint length of the present utility model carries out field fabrication deeply according to the wall of design, and it is dark that ground-connecting-wall joint bottom should exceed ground-connecting-wall, and the concrete length of ground-connecting-wall joint calculates by professional design of its support software to be determined.
Detailed description of the invention two: as shown in Figure 1, the width W of the ground-connecting-wall joint web 1 of present embodiment is 600mm.Design like this considers that conventional ground-connecting-wall design thickness uses in 1000mm situation, and width W can adjust according to design ground-connecting-wall thickness.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention three: as shown in Figure 1, the aperture of the ground-connecting-wall joint manhole 1-1 of present embodiment is 105mm.Design like this guarantees that diameter 100mm stud passes through to fix two blocks of side plates.Other composition and annexation identical with detailed description of the invention one or two.
Detailed description of the invention four: as shown in Figure 1, the center to center distance L of adjacent two the manhole 1-1 of ground-connecting-wall joint of present embodiment is 1800mm.Design like this, be for better and static pile press support the use, static pressure each press-mounting stroke of installing is about 2000mm in the market.Other composition and annexation identical with detailed description of the invention three.
Detailed description of the invention five: as shown in Figure 1, the thickness of the ground-connecting-wall joint web 1 of present embodiment and the equal setting of thickness of side plate 2.Design like this, draws materials single, and thickness can be determined according to design software.Other composition and annexation and detailed description of the invention one, two or four identical.
Detailed description of the invention six: as shown in Figure 1, the ground-connecting-wall joint of present embodiment is Q235 steel ground-connecting-wall joint.Design like this, Q235 steel is drawn materials easily, and solderability is good, rigidity and good toughness.Other composition and annexation identical with detailed description of the invention five.
Claims (6)
1. a construction method for diaphragm walls, this construction method is realized by following steps:
Step one, construction of guide wall: strict control construction of guide wall quality;
Step 2, determine position: connect the locations of structures of wall joint and the control line box tick lables of cast-in-place ground-connecting-wall section definitely;
Step 3, clamping device is assembled on ground-connecting-wall joint;
Step 4, the ground-connecting-wall joint being provided with clamping device to be sling, the ground-connecting-wall joint being provided with clamping device is inserted in the vertical pile press press mounting hole of static(al), stake position is adjusted to the control point, stake position determined in step 2, implement to press-fit the construction of the incision soil body;
Step 5, along with ground-connecting-wall joint press-in the soil body the degree of depth, progressively remove grip unit (3) from the bottom to top, until piling completes;
When step 6, local company wall joint sequential production complete four width, the uniform setting successively along its length of four width ground-connecting-wall joints, first width ground-connecting-wall joint top is welded with the second width ground-connecting-wall joint top connecting reinforcement, 3rd width ground-connecting-wall joint top is connected with the 4th width ground-connecting-wall joint top reinforcement welding, then groover groove under clear groove, reinforcing bar cage hoisting between the second width ground-connecting-wall joint and the 3rd width ground-connecting-wall joint is adopted, pouring concrete, connecting reinforcement cuts off after having constructed by all connection walls;
Before step 7, concrete strength in step 6 reach designing requirement, carry out other non-adjacent wall width constructions, concrete strength directly carries out after reaching requirement facing groove excavation construction;
Ground-connecting-wall joint comprises web (1) and two pieces of side plates (2), two pieces of side plates (2) are parallel and be oppositely arranged, two pieces of side plates (2) are fixed as one by web (1) along its length, two pieces of side plates (2) are all vertical with web (1) to be arranged, the cross section of ground-connecting-wall joint is " H " shape, the lower end of two pieces of side plates (2) is all processed with the basil (2-1), the width (W) of web (1) is 550 ~ 650mm, uniformly along its length on web (1) be processed with multiple manhole (1-1), the aperture of manhole (1-1) is 100 ~ 110mm, the center to center distance (L) of adjacent two manholes (1-1) is 1750 ~ 1850mm,
The clamping device matched with ground-connecting-wall joint, comprise and organize grip unit (3) more, often organize grip unit (3) and comprise two cast steel balancing weights (3-1), two cast steel balancing weights (3-1) are fixed on web (1) manhole (1-1) by bolt and nut, two cast steel balancing weights (3-1) are symmetrical arranged about web (1), organize the length direction uniform setting of grip unit (3) along web (1) more.
2. construction method for diaphragm walls according to claim 1, is characterized in that: the width (W) of ground-connecting-wall joint web (1) is 600mm.
3. construction method for diaphragm walls according to claim 1 and 2, is characterized in that: the aperture of ground-connecting-wall joint manhole (1-1) is 105mm.
4. construction method for diaphragm walls according to claim 3, is characterized in that: the center to center distance (L) of adjacent two manholes (1-1) of ground-connecting-wall joint is 1800mm.
5. the construction method for diaphragm walls according to claim 1,2 or 4, is characterized in that: the thickness of ground-connecting-wall joint web (1) and the equal setting of thickness of side plate (2).
6. construction method for diaphragm walls according to claim 5, is characterized in that: ground-connecting-wall joint is Q235 steel ground-connecting-wall joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166105.4A CN103898927B (en) | 2014-04-23 | 2014-04-23 | Ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166105.4A CN103898927B (en) | 2014-04-23 | 2014-04-23 | Ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls |
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| Publication Number | Publication Date |
|---|---|
| CN103898927A CN103898927A (en) | 2014-07-02 |
| CN103898927B true CN103898927B (en) | 2015-10-14 |
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| CN201410166105.4A Active CN103898927B (en) | 2014-04-23 | 2014-04-23 | Ground-connecting-wall joint, the clamping device matched with it and construction method for diaphragm walls |
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| CN105239577A (en) * | 2015-09-09 | 2016-01-13 | 冯克俊 | Method for carrying out settlement of underground wall structure by means of high-pressure water guns |
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| CN101608447A (en) * | 2009-07-10 | 2009-12-23 | 上海隧道工程股份有限公司 | A kind of cross steel plate water-stopping joint continuous concrete wall and joint construction method thereof |
| JP5893339B2 (en) * | 2011-10-27 | 2016-03-23 | 株式会社丸徳基業 | Construction method of soil cement continuous wall |
| CN202577363U (en) * | 2012-03-20 | 2012-12-05 | 广州中煤江南基础工程公司 | H-shaped steel joint structure of underground diaphragm wall |
| CN203782758U (en) * | 2014-04-23 | 2014-08-20 | 中铁建大桥工程局集团第四工程有限公司 | Concrete diaphragm wall joint and clamping device matched with same |
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| CB02 | Change of applicant information |
Address after: 150008 No. 459 Xianfeng Road, Daowai District, Heilongjiang, Harbin Applicant after: Middle iron is built the 4th Engineering Co., Ltd of group of Bridge Project office Address before: 150008 No. 459 Xianfeng Road, Daowai District, Heilongjiang, Harbin Applicant before: The Fourth Engineering Co., Ltd. of China Railway 13 Civil |
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Free format text: CORRECT: APPLICANT; FROM: THE FOURTH ENGINEERING COMPANY OF CHINA RAILWAY NO.13 BUREAU GROUP TO: CHINA RAILWAY BRIDGE BUREAU GROUP FOURTH ENGINEERING CO., LTD. |
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