CN104947683A - Hanging plate used for preventing leakage of side wall of foundation pit and construction method thereof - Google Patents
Hanging plate used for preventing leakage of side wall of foundation pit and construction method thereof Download PDFInfo
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- CN104947683A CN104947683A CN201510268814.8A CN201510268814A CN104947683A CN 104947683 A CN104947683 A CN 104947683A CN 201510268814 A CN201510268814 A CN 201510268814A CN 104947683 A CN104947683 A CN 104947683A
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- link plate
- foundation pit
- plate
- anchor cable
- preventing
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Abstract
The invention discloses a hanging plate used for preventing leakage of the side wall of a foundation pit. The hanging plate is hung on the inner side of a fender pile by embedding steel bars into the inner side of the fender pile and is a concrete hanging plate, the embedded steel bars penetrate through the hanging plate to be embedded into the fender pile, and the hanging plate is provided with anchor cable holes. When the side wall of the foundation pit leaks, the anchor cable holes are blocked through water stop plates and steel plates, wherein the water stop plates are located between the steel plates and the hanging plate. According to the hanging plate used for preventing leakage of the side wall of the foundation pit, by arranging the hanging plate of a concrete structure, embedding the steel bars into the fender pile and blocking the anchor cable holes through the water stop plates and the steel plates, leakage of the side wall of the foundation pit, water gushing and sand gushing are effectively prevented, normal construction of anchor cables is guaranteed, safety of the foundation pit is guaranteed, and the hanging plate is simple, easy to use, good in practicality and wide in application range.
Description
Technical field
The present invention relates to technical field of building construction, particularly relating to a kind of for preventing link plate and the construction method thereof of foundation pit side-wall seepage.
Background technology
At present when Process of Urbanization Construction is more and more faster, increasing building foundation pit is close to seashore, dam, reservoir etc., these regions often the outer water level of foundation ditch compared with high, the outer hydraulic pressure of foundation ditch is large, having some areas also to exist has a large amount of boulder, space many, by force permeable compared with thick layer of sand, the backfill of foundation ditch periphery, therefore, in foundation pit construction and maintenance process, the dangerous situation of foundation pit side-wall seepage or extensive Sand happens occasionally.
Under above-mentioned geological conditions, the problem especially going along with sb. to guard him form with piled anchor weighs the most by inches.In anchor cable construction process, being easy to that Sand so that anchor cable in large quantities just occur cannot carry out smoothly; Large water gaging infiltrates in hole, and execution conditions not only can be made to worsen, and foundation ditch more seriously can be caused to collapse and foundation capability decline, and the safety of foundation ditch is also always carved and is on the hazard.
Summary of the invention
Main purpose of the present invention is that providing a kind of is intended to prevent foundation pit side-wall seepage for preventing link plate and the construction method thereof of foundation pit side-wall seepage, to guarantee the safety of foundation ditch.
For achieving the above object, the invention provides a kind of for preventing the link plate of foundation pit side-wall seepage, link plate is by the attached inner side being hung on fender post of the mode of bar planting inside fender post, described link plate is concrete link plate, bar planting runs through described link plate and implants in fender post, and described link plate offers anchor cable hole, when foundation pit side-wall seepage, carry out shutoff by seal plate and steel plate to described anchor cable hole, described seal plate is between described steel plate and link plate.
Preferably, described seal plate is PVC seal plate.
Preferably, described link plate is provided with expansion bolt on the position being right against anchor cable, and described seal plate and steel plate add slip casting by described expansion bolt and be fixed on described link plate.
Preferably, the middle part of described bar planting is welded with sealing piece, and described sealing piece is positioned at described link plate.
Preferably, the dark beam in some roads is provided with in the middle part of described link plate.
Preferably, the anchorage length of described bar planting is not less than 450mm.
Preferably, described bar planting is provided with many, and the vertical spacing between adjacent two described bar plantings is 400 ~ 500mm, and horizontal spacing is 700 ~ 800mm.
Preferably, described link plate is provided with steel mesh reinforcement.
The present invention proposes a kind of for preventing the construction method of the link plate of foundation pit side-wall seepage further, comprises the following steps:
The reinforcing bar of many middle parts with sealing piece is implanted in fender post, and makes its anchorage length be not less than 450mm;
At the side welded wire fabric of bar planting, and adopt template, flitch and steel pipe carry out link plate shaping before assembling install, and utilize bar planting to described template carry out tension reinforcing;
Concreting in described template, and reserved anchor cable hole, the link plate of shaping rear formation steel concrete hangs the inner side investing fender post;
When there is extensive Sand in anchor cable construction process, with seal plate and steel plate, shutoff is carried out and slip casting to described anchor cable hole, obtain taking off described seal plate and steel plate after control until slurry initial set and dangerous situation, carry out in-site secondary boring, to complete the construction of anchor cable.
The link plate for preventing foundation pit side-wall seepage that the present invention proposes, by arranging the link plate of concrete structure, and implant in fender post by reinforcing bar, by seal plate and steel plate, shutoff is carried out to anchor cable hole, thus effectively prevent foundation pit side-wall seepage and prevent the phenomenons such as Sand, guarantee the normal construction of anchor cable, ensure the safety of foundation ditch, and simple, practicality is good, applied range.In addition, this link plate also has the advantage that structure simply easily realizes.
Accompanying drawing explanation
Fig. 1 is that the present invention is for preventing the perspective view of the link plate of foundation pit side-wall seepage;
Fig. 2 is for preventing the link plate of foundation pit side-wall seepage at the sectional structure schematic diagram in a-a direction in Fig. 1;
Fig. 3 is for preventing the link plate of foundation pit side-wall seepage at the sectional structure schematic diagram in b-b direction in Fig. 1;
Fig. 4 is that the present invention is for preventing the link plate anchor cable hole place side drawing of foundation pit side-wall seepage;
Fig. 5 is that the present invention is for preventing the link plate anchor cable hole place plane drawing of foundation pit side-wall seepage.
In figure: 1-fender post; 2-base plate; 3-bar planting; 4-steel mesh reinforcement; 5-anchor cable hole; 6-lacing wire; 7-concrete; 8-fore shaft beam; 9-cheats outer ground; 10-stake top steel concrete board wall; 11-first inner support; 12-concreting hole; 13-second inner support; The dark beam of 14-; 15-seal plate; 16-steel plate; 17-expansion bolt.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
The present invention proposes a kind of for preventing the link plate of foundation pit side-wall seepage.
In view of the defect existed in background technology, the problem especially going along with sb. to guard him form with piled anchor weighs the most by inches, therefore adds the form of going along with sb. to guard him of piled anchor for embodiment below in conjunction with accompanying drawing with twice inner support, is described in detail to the specific embodiment of the present invention.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present embodiment, when carrying out bracing of foundation pit construction, owing to bordering on the sea, coastline backfill has more boulder, and the layer of sand of thick about 2.5m is just had in first anchor cable absolute altitude distribution of strata, when adopting common anchor cable to carry out test anchor cable construction, just fairly large Sand is there is when anchor cable is bored into 6m, first go out with clod material for muddy, after about half an hour, water quality becomes clear, a large amount of sand grains is had to go out, taste the bitter saline taste that water quality is seawater, illustrate and adopt common anchor cable to carry out test construction, there is fairly large seepage in foundation ditch, sea sand has infiltrated in foundation ditch, and cause foundation ditch dangerous situation.
After geological conditions and on-the-spot actual seepage dangerous situation are carefully analyzed, invent the steel concrete link plate of the rearmounted antiseepage in inner side of this kind of simple fender post, waterproof, resistance sand, and through practice, the present invention effectively can prevent foundation pit side-wall seepage and prevent the phenomenons such as Sand, ensure that the normal construction of anchor cable, ensure that the safety of foundation ditch.
Referring to figs. 1 through Fig. 5, in this preferred embodiment, for preventing the link plate of foundation pit side-wall seepage, link plate is by the attached inner side being hung on fender post 1 of the mode of bar planting 3 inside fender post 1, and link plate is concrete link plate, and bar planting 3 runs through link plate and implants in fender post 1, link plate offers anchor cable hole 5, when foundation pit side-wall seepage, carry out shutoff by seal plate 15 and steel plate 16 pairs of anchor cable holes 5, seal plate 15 is between steel plate 16 and link plate.Anchor cable hole 5 place can arrange pvc pipe.
Particularly, seal plate 15 is PVC seal plate.With reference to Fig. 1 and Fig. 5, link plate is provided with expansion bolt 17 on the position being right against anchor cable, and seal plate 15 and steel plate 16 add slip casting by expansion bolt 17 and be fixed on link plate.One seal plate 15 and steel plate 16 are fixed on link plate by multiple expansion bolt 17.When there is large-scale Sand in anchor cable construction process, pre-fixed by expansion bolt 17 pairs of seal plates 15 and steel plate 16, and then carry out slip casting, obtain taking off seal plate 15 and steel plate 16 again after control until slurry initial set and dangerous situation, then in-site secondary boring is carried out, until finally complete the construction of anchor cable, thus dissolve the dangerous situation of Sand in time.
Further, the middle part of bar planting 3 is welded with sealing piece, and sealing piece is positioned at link plate, to improve the antiseep effect of this link plate further.
See figures.1.and.2, in the middle part of link plate, be provided with the dark beam 14 in some roads.When having waist rail in former design, then waist rail being made the dark beam 14 in the link plate of steel concrete, so that disposable formwork and concreting, avoiding beam position formwork difficulty and causing concrete to subside.Dark beam (waist rail) 14 determines whether to offer anchor cable construction reserving hole according to going along with sb. to guard him form, if there is anchor cable then longitudinal according to the pre-buried pvc pipe of cable interval along dark beam (waist rail) 14 in bracing of foundation pit design, so that the later stage carries out the construction of anchor cable hole 5.
In order to ensure the structural strength of link plate, in the present embodiment, bar planting 3 is provided with many, and the anchorage length of bar planting 3 is not less than 450mm.The adjacent two vertical spacing taken root between muscle 3 are 400 ~ 500mm, and horizontal spacing is 700 ~ 800mm.
Further, referring to figs. 1 through Fig. 3, link plate is provided with steel mesh reinforcement 4.The link plate that steel mesh reinforcement 4 is positioned at coagulation graph structure is inner, and steel mesh reinforcement 4 is provided with two-layer, and steel mesh reinforcement 4 has certain rigidity and can bear the outer side hydraulic pressure of fender post 1 thus play antiseepage effect.
When constructing, specifically adopt following methods:
The first step, bar planting 3 is constructed: implanted in fender post 1 by the reinforcing bar of middle part with sealing piece, make its anchorage length be not less than 450mm, vertical spacing about 400 ~ 500mm, level interval is 700 ~ 800mm about.
Second step, carries out the construction of steel mesh reinforcement 4: arrange two-layer steel mesh reinforcement 4, and steel mesh reinforcement 4 and bar planting 3 are by being welded and fixed; The reinforcing bar of steel mesh reinforcement 4 and dark beam (waist rail) 14 interts constructs.According to the pre-buried pvc pipe of cable interval on dark beam (waist rail) 14.
3rd step, single surface formwork: adopt the assembling of template, flitch, steel pipe to install, utilizes bar planting 3 pairs of templates to carry out tension and reinforces.
4th step, concreting (being built by concreting hole 12), the link plate of shaping rear formation steel concrete is hung and is invested inside fender post 1.
5th step, if bracing of foundation pit is designed with anchor cable, at once steel plate 16 shutoff is added and slip casting with seal plate 15 when there is extensive Sand in anchor cable construction process, obtain taking off seal plate 15 again after control until slurry initial set and dangerous situation and add steel plate 16, then in-site secondary boring is carried out, until finally complete the construction of anchor cable.
The link plate for preventing foundation pit side-wall seepage that the present embodiment proposes, by arranging the link plate of concrete structure, and implant in fender post 1 by reinforcing bar, carry out shutoff by seal plate 15 and steel plate 16 pairs of anchor cable holes 5, thus effectively prevent foundation pit side-wall seepage and prevent the phenomenons such as Sand, guarantee the normal construction of anchor cable, ensure the safety of foundation ditch, and simple, practicality is good, applied range.In addition, this link plate also has the advantage that structure simply easily realizes.
The present invention proposes a kind of for preventing the construction method of the link plate of foundation pit side-wall seepage further.
In this preferred embodiment, a kind of for preventing the construction method of the link plate of foundation pit side-wall seepage, comprise the following steps:
The reinforcing bar of many middle parts with sealing piece is implanted in fender post, and makes its anchorage length be not less than 450mm;
At the side welded wire fabric of bar planting, and adopt template, flitch and steel pipe carry out link plate shaping before assembling install, and utilize bar planting to described template carry out tension reinforcing;
Concreting in described template, and reserved anchor cable hole, the link plate of shaping rear formation steel concrete hangs the inner side investing fender post;
When there is extensive Sand in anchor cable construction process, with seal plate and steel plate, shutoff is carried out and slip casting to described anchor cable hole, obtain taking off described seal plate and steel plate after control until slurry initial set and dangerous situation, carry out in-site secondary boring, to complete the construction of anchor cable.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure transformation utilizing 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. one kind for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, link plate is by the attached inner side being hung on fender post of the mode of bar planting inside fender post, described link plate is concrete link plate, bar planting runs through described link plate and implants in fender post, and described link plate offers anchor cable hole, when foundation pit side-wall seepage, carry out shutoff by seal plate and steel plate to described anchor cable hole, described seal plate is between described steel plate and link plate.
2. as claimed in claim 1 for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, described seal plate is PVC seal plate.
3. as claimed in claim 1 for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, described link plate is provided with expansion bolt on the position being right against anchor cable, and described seal plate and steel plate add slip casting by described expansion bolt and be fixed on described link plate.
4. as claimed in claim 1 for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, the middle part of described bar planting is welded with sealing piece, and described sealing piece is positioned at described link plate.
5. as claimed in claim 1 for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, in the middle part of described link plate, be provided with the dark beam in some roads.
6. as claimed in claim 1 for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, the anchorage length of described bar planting is not less than 450mm.
7. as claimed in claim 6 for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, described bar planting is provided with many, and the vertical spacing between adjacent two described bar plantings is 400 ~ 500mm, and horizontal spacing is 700 ~ 800mm.
8., as claimed in any of claims 1 to 7 in one of claims for preventing the link plate of foundation pit side-wall seepage, it is characterized in that, described link plate is provided with steel mesh reinforcement.
9. for preventing a construction method for the link plate of foundation pit side-wall seepage, it is characterized in that, comprising the following steps:
The reinforcing bar of many middle parts with sealing piece is implanted in fender post, and makes its anchorage length be not less than 450mm;
At the side welded wire fabric of bar planting, and adopt template, flitch and steel pipe carry out link plate shaping before assembling install, and utilize bar planting to described template carry out tension reinforcing;
Concreting in described template, and reserved anchor cable hole, the link plate of shaping rear formation steel concrete hangs the inner side investing fender post;
When there is extensive Sand in anchor cable construction process, with seal plate and steel plate, shutoff is carried out and slip casting to described anchor cable hole, obtain taking off described seal plate and steel plate after control until slurry initial set and dangerous situation, carry out in-site secondary boring, to complete the construction of anchor cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268814.8A CN104947683B (en) | 2015-05-22 | 2015-05-22 | For preventing link plate and the construction method thereof of foundation pit side-wall seepage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268814.8A CN104947683B (en) | 2015-05-22 | 2015-05-22 | For preventing link plate and the construction method thereof of foundation pit side-wall seepage |
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| CN104947683A true CN104947683A (en) | 2015-09-30 |
| CN104947683B CN104947683B (en) | 2016-11-30 |
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| CN201510268814.8A Active CN104947683B (en) | 2015-05-22 | 2015-05-22 | For preventing link plate and the construction method thereof of foundation pit side-wall seepage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908757A (en) * | 2016-05-31 | 2016-08-31 | 中国建筑第八工程局有限公司 | Temporary blocking structure for clearances of support piles and construction method of temporary blocking structure |
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| AU2005228914A1 (en) * | 2004-04-01 | 2005-10-13 | Modalco Pty Ltd | A reinforced soil retaining wall system and method of construction |
| CN201241343Y (en) * | 2008-07-15 | 2009-05-20 | 北京建工集团有限责任公司 | Rear pouring belt precast concrete suspending board |
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Cited By (1)
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| CN105908757A (en) * | 2016-05-31 | 2016-08-31 | 中国建筑第八工程局有限公司 | Temporary blocking structure for clearances of support piles and construction method of temporary blocking structure |
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| CN104947683B (en) | 2016-11-30 |
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Effective date of registration: 20210407 Address after: Room 2301, building 1, Huide building, North Station community, Minzhi street, Longhua District, Shenzhen, Guangdong 518110 Patentee after: China Construction Third Engineering Bureau Group (Shenzhen) Co.,Ltd. Address before: 430040, No. 1, Soochow Road, Dongxihu District, Hubei, Wuhan Patentee before: NO. 1 CONSTRUCTION ENGINEERING CO., LTD. OF CHINA CONSTRUCTION THIRD ENGINEERING BUREAU Co.,Ltd. |