CN103306312A - Underground diaphragm wall plate-type rigid joint and construction method thereof - Google Patents
Underground diaphragm wall plate-type rigid joint and construction method thereof Download PDFInfo
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- CN103306312A CN103306312A CN201310246594XA CN201310246594A CN103306312A CN 103306312 A CN103306312 A CN 103306312A CN 201310246594X A CN201310246594X A CN 201310246594XA CN 201310246594 A CN201310246594 A CN 201310246594A CN 103306312 A CN103306312 A CN 103306312A
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Abstract
The invention discloses an underground diaphragm wall rigid baffle joint and a construction method thereof, and relates to a rigid baffle joint mode and a construction method thereof. The rigid baffle joint (8) consists of two rigid baffles (1) and a rigid bottom plate (3), wherein a latch pipe (5) is arranged between the two rigid baffles (1); second connecting piece clamping grooves (7) are formed in the side surface of the latch pipe (5); first connecting piece clamping grooves (2) are formed in the side surfaces of the rigid baffles (1); the two rigid baffles (1) are connected with the latch pipe (5) by the first connecting piece clamping grooves (2) and the second connecting piece clamping grooves (7); steel bar end sockets (6) are arranged on the bottom surface of the latch pipe (5); steel bar clamping grooves (4) are formed in the rigid bottom plate (3); and the steel bar ends are fitted with the steel bar clamping grooves (4) to connect the latch pipe (5) with the rigid bottom plate (3). The rigid baffle joint is simple to design and manufacture; accurate contraposition of steel bar cages of adjacent walls is realized; the wall integrity is improved; the lateral bending resistance of the joint is improved; and a percolation path is increased.
Description
Technical field
The present invention relates to the board-like rigid joint of a kind of diaphragm wall and job practices thereof, belong to geotechnical engineering Base hole supporting technology field.Be applicable to groundwater table and bury the base pit engineering shallow, that cutting depth is large and go along with sb. to guard him construction, especially more aobvious advantage under weak soil, flour sand silt geological conditions.
Background technology
Underground continuous wall connector refers to the construction joint between underground continuous wall groove segment and the groove section.Can be divided into flexible joint and rigid joint, flexible joint commonly used has: circular locking notch pipe joint, waveform (double wave, three ripples) joint, preparation joint and rubber water-proof belt lacing etc., shearing resistance, the bending resistance of flexible joint are poor, easily be subject to influence on groundwater in the foundation pit construction process and the quality problems such as seepage occur, generally only use as outer wall of basement, usually do not bear the vertical load of superstructure or only share the part vertical load.
Compare with flexible joint, rigid joint for underground continuous wall can be born larger vertical and horizontal loading, and the body of wall integral rigidity is large.Common rigid joint has: cross steel plate joint, I-shaped steel joint and bar splicing joint etc.When underground diaphragm wall during as the main body outer wall of underground structure, for reaching the body of wall globality, bearing the requirements such as vertical load ability, barrier performance, should adopt rigid joint.
The cross steel plate joint can be born larger vertical load, coordinates the differential settlement of groove section, has increased percolation path, possesses preferably water resistance, but the making of cross steel plate and construction process relative complex.
I-shaped steel joint increases the joint lateral rigidity, make it to bear larger side to load, reduced lateral deformation, but easily form flow-disturbing at the i iron rear side in the concreting process, tend to affect the construction of lower a slice body of wall, the groove segment length is shorter more effective in the situation that ground load is large for this joint.
The bar splicing joint adopts the way of reserving the joint reinforcing bar in the reinforcing cage end, by working measure, two width of cloth wall steel bars are partly overlapped build, improved joint stiffness, strengthen deformability and seepage capability, this kind overlapping mode requires higher to fabrication of reinforcing cage precision and construction quality.
Summary of the invention
Technical problem: the object of the present invention is to provide a kind of simple in structurely, job practices is simple and efficient, is applicable to the board-like rigid joint of a kind of diaphragm wall and the job practices thereof that are subjected to influence on groundwater large.
Technical scheme: diaphragm wall rigid baffle joint of the present invention consists of the rigid baffle joint jointly by two rigid baffles and stiff baseplate, between two rigid baffles, be provided with the snap close pipe, be provided with the second connector draw-in groove in the side of snap close pipe, the side of rigid baffle is provided with the first connector draw-in groove, and two rigid baffles are connected with the second connector draw-in groove by the first connector draw-in groove with the snap close pipe; Bottom surface at the snap close pipe is provided with steel bar end, is provided with the reinforcing bar draw-in groove at stiff baseplate, steel bar end and reinforcing bar draw-in groove match with, snap close pipe and stiff baseplate link together.
The job practices of diaphragm wall rigid baffle joint of the present invention comprises the steps:
The first step: according to diaphragm wall width and the degree of depth, design rigid baffle and stiff baseplate, comprise rigid baffle size (length and the reinforcing cage of rigid baffle is isometric, width is got the diaphragm wall width 1.5～2.0 times, position and the size of thickness 10～20mm), connector draw-in groove, position and the size of stiff baseplate size (stiff baseplate length is that rigid baffle width, width are that the diaphragm wall width subtracts 30～50mm, thickness and rigid baffle uniform thickness), reinforcing bar draw-in groove, snap close pipe bottom reinforcement bars tip position and size;
Second step: according to designing and producing rigid baffle, stiff baseplate, snap close pipe;
The 3rd step: rigid baffle and the stiff baseplate made are welded to connect, and form the rigid baffle joint;
The 4th step: diaphragm wall milling slot;
The 5th step: assembly unit rigid baffle joint and snap close pipe, rigid baffle joint and snap close pipe are installed in above-mentioned groove simultaneously;
The 6th step: the first reinforcing cage is installed, again the first diaphragm wall of forming of concreting in the groove of a side of rigid baffle joint;
The 7th step: extract the snap close pipe, the part of rigid baffle joint is cast in the body of wall of established the first diaphragm wall, and part is exposed in the adjacent slot section;
The 8th step: continue the construction of adjacent slot section, the rigid baffle joint that previous step is exposed is cast in the concrete, and the construction of rigid baffle joint is complete, forms the first complete diaphragm wall and the second diaphragm wall.
Beneficial effect: the present invention adopts above technical scheme and corresponding job practices, possess compared with prior art following advantage: rigid baffle, stiff baseplate that joint needs design and produce simply, the reinforcing cage contraposition that the final rigid baffle joint that forms can make neighboring walls accurately, improve body of wall globality, enhancing joint side to bending resistance, increased percolation path.The present invention finishes the construction of rigid joint by the ripe snap close pipe flexible joint job practices of tradition, technological process is simple and efficient, is easy to realize.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and case study on implementation.
Fig. 1: the rigid baffle elevational schematic view,
Fig. 2: the rigid baffle schematic top plan view,
Fig. 3: the stiff baseplate elevational schematic view,
Fig. 4: the stiff baseplate schematic top plan view,
Fig. 5: snap close pipe elevational schematic view,
Fig. 6: snap close pipe schematic top plan view,
Fig. 7: rigid baffle joint elevational schematic view,
Fig. 8: rigid baffle joint schematic top plan view,
Fig. 9: the rigid baffle joint is implemented schematic diagram 1,
Figure 10: the rigid baffle joint is implemented plan view 2,
Have among the above figure: rigid baffle 1; Connector draw-in groove 2; Stiff baseplate 3; Reinforcing bar draw-in groove 4; Snap close pipe 5; Steel bar end 6; Connector draw-in groove 7; Rigid baffle joint 8; The first reinforcing cage 9; The first diaphragm wall 10; The second reinforcing cage 11; The second diaphragm wall 12; Foundation ditch inboard 13; The foundation ditch outside 14.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
The job practices of diaphragm wall rigid baffle joint of the present invention, the implementation operating procedure is as follows:
The first step: according to diaphragm wall width and the degree of depth, design corresponding rigid baffle 1 and stiff baseplate 3, the position and the size that comprise rigid baffle 1 size, connector draw-in groove 2, position and the size of stiff baseplate 3 sizes, reinforcing bar draw-in groove 4, snap close pipe 6 positions, 5 bottom reinforcement bars terminations and size;
Second step: according to designing and producing rigid baffle 1, stiff baseplate 3, snap close pipe 5;
The 3rd step: rigid baffle 1 and the stiff baseplate 3 made are welded to connect, and form rigid baffle joint 8;
The 4th step: diaphragm wall milling slot;
The 5th step: assembly unit rigid baffle joint 8 and snap close pipe 5, rigid baffle joint 8 and snap close pipe 5 are installed simultaneously;
The 6th step: reinforcing cage 1 is installed, concreting;
The 7th step: extract snap close pipe 5, the part of rigid baffle joint 8 is cast in the body of wall of established diaphragm wall 1, and part is exposed in the adjacent slot section;
The 8th step: continue the construction of adjacent slot section, the rigid baffle joint 8 that previous step is exposed is cast in the concrete, and 8 constructions of rigid baffle joint are complete, form complete diaphragm wall 1 and diaphragm wall 2 12.
Length and the reinforcing cage of described rigid baffle is isometric, width is got the diaphragm wall width 1.5～2.0 times, thickness 10～20mm; Described stiff baseplate length is that rigid baffle width, width are that the diaphragm wall width subtracts 30～50mm, thickness and rigid baffle uniform thickness.
Claims (3)
1. diaphragm wall rigid baffle joint, it is characterized in that: this rigid baffle joint consists of rigid baffle joint (8) jointly by two rigid baffles (1) and stiff baseplate (3), between two rigid baffles (1), be provided with snap close pipe (5), be provided with the second connector draw-in groove (7) in the side of snap close pipe (5), the side of rigid baffle (1) is provided with the first connector draw-in groove (2), and two rigid baffles (1) are connected with the second connector draw-in groove (7) by the first connector draw-in groove (2) with snap close pipe (5); Be provided with steel bar end (6) in the bottom surface of snap close pipe (5), be provided with reinforcing bar draw-in groove (4) at stiff baseplate (3), steel bar end (6) and reinforcing bar draw-in groove (4) match with, snap close pipe (5) links together with stiff baseplate (3).
2. the job practices of a diaphragm wall rigid baffle joint as claimed in claim 1 is characterized in that the method comprises the steps:
The first step: according to diaphragm wall width and the degree of depth, design rigid baffle (1) and stiff baseplate (3),, the position of the first connector draw-in groove (2) and size, the second connector draw-in groove (7) position and size, position and the size of stiff baseplate (3) size, reinforcing bar draw-in groove (4), (6) position, snap close pipe (5) bottom reinforcement bars termination and size;
Second step: according to designing and producing rigid baffle (1), stiff baseplate (3), snap close pipe (5);
The 3rd step: the rigid baffle of making (1) is welded to connect with stiff baseplate (3), forms rigid baffle joint (8);
The 4th step: diaphragm wall milling slot;
The 5th step: assembly unit rigid baffle joint (8) and snap close pipe (5), rigid baffle joint (8) and snap close pipe (5) are installed in above-mentioned groove simultaneously;
The 6th step: the first reinforcing cage (9) is installed, again first diaphragm wall (10) of concreting formation in the groove of a side of rigid baffle joint (8);
The 7th step: extract snap close pipe (5), the part of rigid baffle joint (8) is cast in the body of wall of established the first diaphragm wall (10), and part is exposed in the adjacent slot section;
The 8th step: continue the construction of adjacent slot section, the rigid baffle joint (8) that previous step is exposed is cast in the concrete, and rigid baffle joint (8) construction is complete, forms complete the first diaphragm wall (10) and the second diaphragm wall (12).
3. the job practices of diaphragm wall rigid baffle joint as claimed in claim 2 is characterized in that the length of described rigid baffle and reinforcing cage are isometric, width is got the diaphragm wall width 1.5～2.0 times, thickness 10～20mm; Described stiff baseplate length is that rigid baffle width, width are that the diaphragm wall width subtracts 30～50mm, thickness and rigid baffle uniform thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310246594.XA CN103306312B (en) | 2013-06-20 | 2013-06-20 | Underground diaphragm wall plate-type rigid joint and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310246594.XA CN103306312B (en) | 2013-06-20 | 2013-06-20 | Underground diaphragm wall plate-type rigid joint and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306312A true CN103306312A (en) | 2013-09-18 |
| CN103306312B CN103306312B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310246594.XA Active CN103306312B (en) | 2013-06-20 | 2013-06-20 | Underground diaphragm wall plate-type rigid joint and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153396A (en) * | 2014-07-17 | 2014-11-19 | 中国十七冶集团有限公司 | Anti-seepage continuous wall construction method |
| CN104278672A (en) * | 2014-10-30 | 2015-01-14 | 天津深基工程有限公司 | Diaphragm wall protection layer plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239995Y (en) * | 1995-04-14 | 1996-11-13 | 上海宝钢冶金建设公司第五工程公司 | Rigid joint for underground continuous wall |
| JP2011122386A (en) * | 2009-12-14 | 2011-06-23 | Toda Constr Co Ltd | Method of construction of underground structure, underground structure, and precast concrete side wall or intermediate wall/column for the same |
| CN202175961U (en) * | 2011-08-03 | 2012-03-28 | 天津深基工程有限公司 | Swallow-tailed seal head structure of diaphragm wall steel reinforcement cage |
| CN102817377A (en) * | 2012-09-04 | 2012-12-12 | 同济大学 | Double plug pin type fore shaft pipe |
-
2013
- 2013-06-20 CN CN201310246594.XA patent/CN103306312B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239995Y (en) * | 1995-04-14 | 1996-11-13 | 上海宝钢冶金建设公司第五工程公司 | Rigid joint for underground continuous wall |
| JP2011122386A (en) * | 2009-12-14 | 2011-06-23 | Toda Constr Co Ltd | Method of construction of underground structure, underground structure, and precast concrete side wall or intermediate wall/column for the same |
| CN202175961U (en) * | 2011-08-03 | 2012-03-28 | 天津深基工程有限公司 | Swallow-tailed seal head structure of diaphragm wall steel reinforcement cage |
| CN102817377A (en) * | 2012-09-04 | 2012-12-12 | 同济大学 | Double plug pin type fore shaft pipe |
Non-Patent Citations (1)
| Title |
|---|
| 陈令强: "新型地下连续墙接头的开发与应用", 《市政技术》, vol. 25, no. 1, 31 January 2007 (2007-01-31), pages 62 - 64 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153396A (en) * | 2014-07-17 | 2014-11-19 | 中国十七冶集团有限公司 | Anti-seepage continuous wall construction method |
| CN104278672A (en) * | 2014-10-30 | 2015-01-14 | 天津深基工程有限公司 | Diaphragm wall protection layer plate |
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| Publication number | Publication date |
|---|---|
| CN103306312B (en) | 2015-04-01 |
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