CN102943486B - Precast pressed-in underground continuous wall and construction method thereof - Google Patents
Precast pressed-in underground continuous wall and construction method thereof Download PDFInfo
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- CN102943486B CN102943486B CN201210420816.0A CN201210420816A CN102943486B CN 102943486 B CN102943486 B CN 102943486B CN 201210420816 A CN201210420816 A CN 201210420816A CN 102943486 B CN102943486 B CN 102943486B
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Abstract
The invention relates to a precast pressed-in underground continuous wall and a construction method thereof. The continuous wall is formed by a precast corner wall body and a straight wall body, which are precast by reinforced concrete, in a split joint manner, wherein the two end parts of both the corner wall body and the straight wall body are respectively a first connecting part, a second connecting part, a third connecting part and a fourth connecting part, which serve as a front-end connecting part or a back-end connecting part; during performing split joint, the front-end connecting part is in split joint with the adjacent back-end connecting part, and a combined cavity is formed by a concave inner cavity of the front-end connecting part and a concave inner cavity of the back-end connecting part in a surrounding manner; and concrete is poured into the combined cavity the combined cavity. As the corner wall body and the straight wall body of the continuous wall adopt industrialized production, the continuous wall has high production efficiency, lower cost, simple construction process and short construction period.
Description
Technical field
The present invention relates to a kind of prefabricated forced diaphragm wall and construction method thereof.
Background technology
Current, mostly basement structure construction is before soil excavation, is greater than the Sloping engineering construction of basement structure volume.Support engineering is according to different geology independent design, and its engineering quantity is large, expense is high, long in time limit.Some prop long-term storage, can have a negative impact to environment.If the exterior enclosure wall of basement is constructed in advance, just can save most of support engineering, existing drill hole cast-in-place filling diaphragm wall operation technique, because expense is high, long in time limit, cost accounting is uneconomical and be not widely adopted.
Summary of the invention
The object of the present invention is to provide a kind of prefabricated forced diaphragm wall and using method thereof, the angle body of wall of this diaphragm wall and stalk body adopt batch production to produce, and production efficiency is high, and cost is lower, and construction technology is simple, and the construction period is short.
Technical program of the present invention lies in: a kind of prefabricated forced diaphragm wall, described diaphragm wall is spliced by prefabricated angle body of wall and stalk body; Described angle body of wall and stalk body adopt reinforced concrete prefabricated, the both ends of described angle body of wall are respectively the first connecting portion and the second connecting portion, the both ends of described stalk body are the 3rd connecting portion and the 4th connecting portion, and described first, second, third, fourth connecting portion is front end connecting portion or rear end connecting portion; When docking, described front end connecting portion docks with adjacent rear end connecting portion, and the spill inner chamber of front end connecting portion and the spill inner chamber of rear end connecting portion surround a binding cavity, in described binding cavity, has built concrete.
Further, on the both sides metope of described front end connecting portion, be prefabricated with vertical guide, in the spill inner chamber of described front end connecting portion, be provided with the first embedded bar; On the both sides metope of described rear end connecting portion, be prefabricated with flute profile hook, the other end of described flute profile hook is hooked in the vertical guide of the front end connecting portion connecting, and in the spill inner chamber of described rear end connecting portion, is provided with the second embedded bar.
Further, described the first embedded bar is the embedded ribs of two row's yi word patterns, described the second embedded bar is ㄈ font embedded ribs, the spacing of the embedded ribs of described two row's yi word patterns is greater than the width of ㄈ font embedded ribs, in order in the time that front end connecting portion docks with rear end connecting portion, the first embedded bar and the second embedded bar can be interlaced, can guarantee the globality of diaphragm wall after concreting.
Further, described vertical guide and diaphragm wall are contour, and described flute profile hook vertically interval arranges or arranges continuously.
Further, described stalk body is solid wall or hollow wall, and the bottom surface of described angle body of wall and stalk body is straight angle bottom surface, bottom surface, obtuse angle, lower arcuate surface.
Further, the cross section of described solid wall is yi word pattern or T-shaped.
Further, on described hollow wall, offer vertical square opening or vertical Circular Tube With Hole.
The construction method of above-mentioned basement diaphragm wall, carry out according to the following steps:
(1) install pile compacting equipment, carried out equipment calibration after in place;
(2) start construction from a corner of basement, in first suppressing and bury with the angle body of wall that two ends are had a front end connecting portion by pile compacting equipment, while suppressing, need first on two front end connecting portions of angle body of wall, protective cover to be installed, after angle body of wall puts in place, protective cover is upwards extracted out;
(3) be progressively pressed into stalk body or angle body of wall along the bearing of trend of two front end connecting portions of angle of entry body of wall, while suppressing, need first by the rear end connecting portion of stalk body or angle body of wall and the front end connecting portion contraposition that is pressed into the diaphragm wall in soil, accomplish that rear terminal area realizes button with the front end connecting portion of crimping diaphragm wall and hang, and on the front end connecting portion of stalk body or angle body of wall, protective cover is installed, after stalk body or angle body of wall put in place, protective cover is upwards extracted out;
(4) last piece is pressed into stalk body in soil or the both ends of angle body of wall are rear end connecting portion;
(5) clean the earth in binding cavity, and in binding cavity concreting.
The profile of above-mentioned protective cover is arc opening shape; its width is more than or equal to the thickness of diaphragm wall; its height matches with diaphragm wall; the both sides of the openend of described protective cover are provided with the clasp for coordinating with the vertical guide on front end connecting portion; described protective cover inner side is provided with the support sheet offseting with recess edge lug boss, to guarantee stability and the rigidity of arc junction cover, described protective cover be provided with hook hanging hole; in order to coordinating with power hook, will wherein in soil, hang out.
The processing of binding cavity: 1. progressively put into from top to bottom and clean Grouting Pipe and dredging tube; 2. put press water and rinse the earth in binding cavity, extract mud simultaneously out; 3. above-mentioned steps is until behind binding cavity bottom, proposition dredging tube, carries out slip casing by pressure, until all fill up binding cavity simultaneously.
Beneficial effect of the present invention is: the one, and in subterranean wall, construction technology is simple and reliable and the duration is short in advance; The 2nd, first subterranean wall forms, and earthwork excavated volume is reduced, and does not also need embankment, and engineering quantity greatly reduces; The 3rd, subterranean wall is extruding type, can increase the soil body between frictional force supporting, thereby can reduce the carrying of wall stake, reduce the quantity of stake simultaneously; The 4th, precast wall body should be produced in factory's sizing, has the advantages that intensity is high, cost is low; The 5th, can adopt piling machinery, construction technology is simplified, and management efficiency is high; The 6th, noresidue prop, the duration is short, and pump-out is few, useful protection of the environment; The 7th, large portion substitutes supporting, and above each point use construction costs is low, and social benefit is good.
Accompanying drawing explanation
Fig. 1 is the partial top view of the diaphragm wall in embodiment.
Fig. 2 is front end connecting portion plan structure schematic diagram while docking with rear end connecting portion.
Fig. 3 is front end connecting portion plan structure schematic diagram while separating with rear end connecting portion.
Fig. 4 is the syndeton schematic diagram of protective cover and front end connecting portion.
Fig. 5 is that A in Fig. 4 is to view.
Fig. 6 is the diaphragm wall side-looking structural representation of bottom surface, obtuse angle.
Fig. 7 is the diaphragm wall side-looking structural representation of lower arcuate surface.
Fig. 8 is the plan structure schematic diagram with the diaphragm wall of vertical square opening.
Fig. 9 is the plan structure schematic diagram with the diaphragm wall of vertical Circular Tube With Hole.
Figure 10 is the plan structure schematic diagram of T-shaped diaphragm wall.
Label declaration: body of wall 1.1-first connecting portion 1.2-second connecting portion 2-stalk body 2.1-the 3rd connecting portion 2.2-the 4th connecting portion 3-binding cavity 4-vertical guide 5-first embedded bar 6-flute profile hook 7-the second embedded bar 8-protective cover 9-clasp 10-support sheet 11-hanging hole 12-in 1-angle cleans Grouting Pipe 13-dredging tube 14-dowel 15-inclined-plane.
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
As shown in Figure 1,2 and 3, a kind of prefabricated forced diaphragm wall, described diaphragm wall is spliced by prefabricated angle body of wall 1 and stalk body 2; Described angle body of wall 1 and stalk body 2 adopt reinforced concrete prefabricated, the both ends of described angle body of wall 1 are respectively the first connecting portion 1.1 and the second connecting portion 1.2, the both ends of described stalk body 2 are the 3rd connecting portion 2.1 and the 4th connecting portion 2.2, and described first, second, third, fourth connecting portion is front end connecting portion or rear end connecting portion; When docking, described front end connecting portion docks with adjacent rear end connecting portion, and the spill inner chamber of front end connecting portion and the spill inner chamber of rear end connecting portion surround a binding cavity 3, in described binding cavity 3, has built concrete.In the spill inner chamber of described front end connecting portion and the spill inner chamber of rear end connecting portion, be also provided with the inclined-plane 15 for strengthening structural rigidity.
On the both sides metope of above-mentioned front end connecting portion, be prefabricated with vertical guide 4, in the spill inner chamber of described front end connecting portion, be provided with the first embedded bar 5; On the both sides metope of described rear end connecting portion, be prefabricated with flute profile hook 6, the dowel 14 of described vertical guide 4 and flute profile hook 6 is all pre-on the connection end of angle body of wall 1 and stalk body 2, the other end of described flute profile hook 6 is hooked in the vertical guide 4 of the front end connecting portion connecting, and is provided with the second embedded bar 7 in the spill inner chamber of described rear end connecting portion.Described the first embedded bar 5 is the embedded ribs of two row's yi word patterns, described the second embedded bar 7 is ㄈ font embedded ribs, the spacing of the embedded ribs of described two row's yi word patterns is greater than the width of ㄈ font embedded ribs, in order in the time that front end connecting portion docks with rear end connecting portion, the first embedded bar and the second embedded bar can be interlaced, can guarantee the globality of diaphragm wall after concreting.Described vertical guide 4 is contour with diaphragm wall, and described flute profile hook 6 vertically interval arranges.
Above-mentioned stalk body is solid wall or hollow wall, and the bottom surface of described angle body of wall and stalk body is straight angle bottom surface, bottom surface, obtuse angle (shown in Fig. 6), lower arcuate surface (shown in Fig. 7).The cross section of described solid wall is yi word pattern (shown in Fig. 1) or T-shaped (shown in Figure 10).On described hollow wall, offer vertical square opening (shown in Fig. 8) or vertical Circular Tube With Hole (shown in Fig. 9).
The construction method of above-mentioned basement diaphragm wall, carry out according to the following steps:
(1) install pile compacting equipment, carried out equipment calibration after in place;
(2) start construction from a corner of basement, in first suppressing and bury with the angle body of wall that two ends are had a front end connecting portion by pile compacting equipment, while suppressing, need first on two front end connecting portions of angle body of wall, protective cover to be installed, after angle body of wall puts in place, protective cover is upwards extracted out; As shown in Figure 4 and Figure 5, the profile of described protective cover 8 is arc opening shape, its width is more than or equal to the thickness of diaphragm wall, its height matches with diaphragm wall, the both sides of the openend of described protective cover 8 are provided with the clasp 9 for coordinating with the vertical guide 4 on front end connecting portion, described protective cover 8 inner sides are provided with the support sheet 10 offseting with recess edge lug boss, to guarantee stability and the rigidity of arc junction cover, described protective cover be provided with hook hanging hole 11, in order to coordinating with power hook, will wherein in soil, hang out;
(3) be progressively pressed into stalk body or angle body of wall along the bearing of trend of two front end connecting portions of angle of entry body of wall, while suppressing, need first by the rear end connecting portion of stalk body or angle body of wall and the front end connecting portion contraposition that is pressed into the diaphragm wall in soil, accomplish that rear terminal area realizes button with the front end connecting portion of crimping diaphragm wall and hang, and on the front end connecting portion of stalk body or angle body of wall, protective cover is installed, after stalk body or angle body of wall put in place, protective cover is upwards extracted out;
(4) last piece is pressed into stalk body in soil or the both ends of angle body of wall are rear end connecting portion;
(5) clean the earth in binding cavity, and in binding cavity concreting.Concrete steps are: 1. progressively put into from top to bottom and clean Grouting Pipe and dredging tube; 2. put press water and rinse the earth in binding cavity, extract mud simultaneously out; 3. above-mentioned steps is until behind binding cavity bottom, proposition dredging tube, carries out slip casing by pressure, until all fill up binding cavity simultaneously.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes manual of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a prefabricated forced diaphragm wall, is characterized in that, described diaphragm wall is spliced by prefabricated angle body of wall and stalk body; Described angle body of wall and stalk body adopt reinforced concrete prefabricated, the both ends of described angle body of wall are respectively the first connecting portion and the second connecting portion, the both ends of described stalk body are the 3rd connecting portion and the 4th connecting portion, and described first, second, third, fourth connecting portion is front end connecting portion or rear end connecting portion; When docking, described front end connecting portion docks with adjacent rear end connecting portion, and the spill inner chamber of front end connecting portion and the spill inner chamber of rear end connecting portion surround a binding cavity, in described binding cavity, build concrete, on the both sides metope of described front end connecting portion, be prefabricated with vertical guide, in the spill inner chamber of described front end connecting portion, be provided with the first embedded bar; On the both sides metope of described rear end connecting portion, be prefabricated with flute profile hook, the other end of described flute profile hook is hooked in the vertical guide of the front end connecting portion connecting, and in the spill inner chamber of described rear end connecting portion, is provided with the second embedded bar.
2. prefabricated forced diaphragm wall according to claim 1, it is characterized in that, described the first embedded bar is the embedded ribs of two row's yi word patterns, described the second embedded bar is ㄈ font embedded ribs, the spacing of the embedded ribs of described two row's yi word patterns is greater than the width of ㄈ font embedded ribs, in order in the time that front end connecting portion docks with rear end connecting portion, the first embedded bar and the second embedded bar can be interlaced, can guarantee the globality of diaphragm wall after concreting.
3. prefabricated forced diaphragm wall according to claim 1, is characterized in that, described vertical guide and diaphragm wall are contour, and described flute profile hook vertically interval arranges or arranges continuously.
4. prefabricated forced diaphragm wall according to claim 1, is characterized in that, described stalk body is solid wall or hollow wall, and the bottom surface of described angle body of wall and stalk body is straight angle bottom surface or bottom surface, obtuse angle or lower arcuate surface.
5. prefabricated forced diaphragm wall according to claim 4, is characterized in that, the cross section of described solid wall is yi word pattern or T-shaped.
6. prefabricated forced diaphragm wall according to claim 4, is characterized in that, offers vertical square opening or vertical Circular Tube With Hole on described hollow wall.
7. a construction method for basement diaphragm wall, is characterized in that, carries out according to the following steps:
Install pile compacting equipment, carried out equipment calibration after in place;
Start construction from a corner of basement, in first suppressing and bury with the angle body of wall that two ends are had a front end connecting portion by pile compacting equipment, while suppressing, need first on two front end connecting portions of angle body of wall, protective cover is installed, after angle body of wall puts in place, protective cover is upwards extracted out;
Bearing of trend along two front end connecting portions of angle of entry body of wall is progressively pressed into stalk body or angle body of wall, while suppressing, need first by the rear end connecting portion of stalk body or angle body of wall and the front end connecting portion contraposition that is pressed into the diaphragm wall in soil, accomplish that rear terminal area realizes button with the front end connecting portion of crimping diaphragm wall and hang, and on the front end connecting portion of stalk body or angle body of wall, protective cover is installed, after stalk body or angle body of wall put in place, protective cover is upwards extracted out;
Last piece is pressed into stalk body in soil or the both ends of angle body of wall are rear end connecting portion;
Clean the earth in binding cavity, and in binding cavity concreting.
8. the construction method of basement diaphragm wall according to claim 7, it is characterized in that, the profile of described protective cover is arc opening shape, its width is more than or equal to the thickness of diaphragm wall, its height matches with diaphragm wall, the both sides of the openend of described protective cover are provided with the clasp for coordinating with the vertical guide on front end connecting portion, described protective cover inner side is provided with the support sheet offseting with recess edge lug boss, to guarantee stability and the rigidity of arc junction cover, described protective cover be provided with hook hanging hole, in order to coordinating with power hook, to wherein in soil, hang out.
9. the construction method of basement diaphragm wall according to claim 7, is characterized in that, the processing of binding cavity: 1. progressively put into from top to bottom and clean Grouting Pipe and dredging tube; 2. put press water and rinse the earth in binding cavity, extract mud simultaneously out; 3. above-mentioned steps is until behind binding cavity bottom, proposition dredging tube, carries out slip casing by pressure, until all fill up binding cavity simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210420816.0A CN102943486B (en) | 2012-10-30 | 2012-10-30 | Precast pressed-in underground continuous wall and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210420816.0A CN102943486B (en) | 2012-10-30 | 2012-10-30 | Precast pressed-in underground continuous wall and construction method thereof |
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| Publication Number | Publication Date |
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| CN102943486A CN102943486A (en) | 2013-02-27 |
| CN102943486B true CN102943486B (en) | 2014-07-09 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835316B (en) * | 2014-01-24 | 2016-01-20 | 中国建筑第八工程局有限公司 | A kind of joint design of coercion underground continuous wall and construction method |
| CN104018518B (en) * | 2014-05-30 | 2016-01-20 | 浙江大学宁波理工学院 | The method of prefabricated diaphragm wall and construction outer wall of basement and floor |
| CN105274982A (en) * | 2015-10-15 | 2016-01-27 | 上海市政工程设计研究总院（集团）有限公司 | Prefabricated underground diaphragm wall and horizontal splicing method thereof |
| CN105350521A (en) * | 2015-11-16 | 2016-02-24 | 上海市政工程设计研究总院（集团）有限公司 | Vertical splicing structure and method of prefabricated underground diaphragm walls |
| CN107700475B (en) * | 2017-11-16 | 2023-07-28 | 浙江杰立建设集团有限公司 | Assembled concrete underground diaphragm wall structure and construction process |
| CN110004917A (en) * | 2019-04-19 | 2019-07-12 | 中铁第四勘察设计院集团有限公司 | A kind of coercion underground continuous wall structure and its construction method |
| CN110468851A (en) * | 2019-09-02 | 2019-11-19 | 天津市环境保护技术开发中心设计所 | A kind of support unit, underground water emergency processing antiseepage weir and its construction method |
| CN115162357B (en) * | 2022-07-28 | 2023-07-21 | 蒲亚威 | Continuous wall system with top-down construction and construction method |
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|---|---|---|---|---|
| JPS55122915A (en) * | 1979-03-14 | 1980-09-22 | Ohbayashigumi Ltd | Method for building underground continuous wall |
| JPH11209968A (en) * | 1998-01-22 | 1999-08-03 | Shimizu Corp | Joint structure of underground continuous wall |
| CN101240551A (en) * | 2007-12-07 | 2008-08-13 | 江苏东大特种基础工程有限公司 | Prefabricated prestressing pipe pile composite supporting wall structure |
| CN101319498A (en) * | 2008-07-17 | 2008-12-10 | 万勇 | Lattice type prefabricated prestressed underground continuous wall and its construction method |
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2012
- 2012-10-30 CN CN201210420816.0A patent/CN102943486B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55122915A (en) * | 1979-03-14 | 1980-09-22 | Ohbayashigumi Ltd | Method for building underground continuous wall |
| JPH11209968A (en) * | 1998-01-22 | 1999-08-03 | Shimizu Corp | Joint structure of underground continuous wall |
| CN101240551A (en) * | 2007-12-07 | 2008-08-13 | 江苏东大特种基础工程有限公司 | Prefabricated prestressing pipe pile composite supporting wall structure |
| CN101319498A (en) * | 2008-07-17 | 2008-12-10 | 万勇 | Lattice type prefabricated prestressed underground continuous wall and its construction method |
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