CN201296932Y - Segmentation prefabricating sunken outer wall and guide wall thereof - Google Patents
Segmentation prefabricating sunken outer wall and guide wall thereof Download PDFInfo
- Publication number
- CN201296932Y CN201296932Y CNU2008201532693U CN200820153269U CN201296932Y CN 201296932 Y CN201296932 Y CN 201296932Y CN U2008201532693 U CNU2008201532693 U CN U2008201532693U CN 200820153269 U CN200820153269 U CN 200820153269U CN 201296932 Y CN201296932 Y CN 201296932Y
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- wall
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- basement
- merogenesis
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Abstract
The utility model discloses a segmentation prefabricating sunken outer wall which has a reinforced concrete prestress structure. A vertical rotary spray through hole is reserved in the center of the wall body; the bottom foot of the wall body is slightly wider than the wall body; an inner layer and an outer layer of vertical main reinforcements inside and outside the wall body adopt steel wires (all or partial); the steel wires pass through thin-walled steel pipes; the bottom parts of the thin-walled steel pipes on the inner side and the outer side are communicated with each other; the outer periphery of the steel wire inside the thin-walled steel pipe is cast with a protective layer; the steel wire is locked on the upper end surface of the wall body through a prestress anchorage device; and a reinforcement connector is pre-embedded on the inner side of the wall body. The utility model is characterized in that semicircle guide grooves are formed at two ends of the wall body; a convex guide head is arranged at the lower end of the wall body; a vertical deformation observation pipe is pre-embedded in the wall body; and a stress meter is pre-embedded inside the wall body. The utility model can maximize the construction safety and convenience, and further reduce construction cost.
Description
Technical field
The utility model belongs to construction engineering technical field, relate in particular to a kind of, post stretching prefabricated at the ground merogenesis apply prestressing force, by steel pipe and lead guiding boring and plush copper guiding under wall correcting, the wall, rely on the churning method to make the view picture exterior wall sink down into the outer wall of basement of desired depth and lead wall.This outer wall of basement can replace foundation pit enclosure structure fully, saves a large amount of construction costs, ensures the quality of products and safety, saves a large amount of durations.
Background technology
At present existing diaphragm wall mainly contains two kinds: 1, cast-in-place diaphragm wall in the groove; 2, prefabricated lattice prestressed underground continuous wall.Existing division is as follows:
1, cast-in-place diaphragm wall is to lead wall inside and outside preposition is made in the groove, grabs groove downwards with grabbing scouring machine in the middle of leading wall, transfers the reinforcing cage of making after the grooving, transfers the conduit underwater concreting then and becomes wall.Owing to be subjected to the influence of earth formation in the grooving process, cell wall very easily caves in the sand layer, dangerous situations such as easily inwardly indentation of cell wall in bury, thereby cause diaphragm wall to reveal mass defects such as muscle, burning into sand, bulge, body of wall leak, excavation of foundation pit occur pressing from both sides mud often, leak, quicksand.And that this body of wall owing to water is on the ground smash is prefabricated, can well guarantee the shape and the quality of body of wall, and impervious expansion pipe again can fine assurance sealing in the cast-in-place hole; Owing to applied prestressing force, improved the rigidity of body of wall greatly, the distortion of the body of wall in the time of can guaranteeing excavation of foundation pit is reduced to Min., and cast-in-place diaphragm wall in the aforesaid groove has incomparable advantage.
2, precast prestressed lattice diaphragm wall, though compare with the Cast-in-situs type diaphragm wall that wall quality can be good at guaranteeing and during excavation distortion also very little, but because of it is that an interior strange land is prefabricated, hanging with loop wheel machine needs the large-tonnage loop wheel machine, safety is difficult to guarantee and be subjected to the influence of loop wheel machine crane capacity, what the wall width of cloth can not be done is very long very high, causes the scope of application limited too much with joint, and efficiency of construction is low.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of post stretching apply prestressing force, by steel pipe and lead wall correcting, wall guiding boring and plush copper guiding down, rely on the churning method make the view picture exterior wall sink down into desired depth the prefabricated sinking of merogenesis outer wall of basement and lead wall, to overcome the above-mentioned defective that prior art exists.
The technical scheme of the utility model technical solution problem is as follows:
The outer wall of basement of the prefabricated sinking of a kind of merogenesis; it is the steel concrete prestressed structure; vertical churning through hole is reserved at the body of wall center; body of wall footing width is slightly wideer than body of wall; the inside and outside all or part of employing steel strand of two-layer vertical main muscle of described body of wall; described steel strand are through in the thin-wall steel tube; thin-wall steel tube bottom, inside and outside both sides communicates; layer protective layer is built in the periphery of steel strand in the thin-wall steel tube; steel strand are locked by prestressed anchor in the upper surface of body of wall; the inboard embedded bar connector of body of wall; it is characterized in that described body of wall two ends are the semicircle guiding groove, the body of wall lower end is provided with the target seeker of protrusion; the deformation observation pipe of pre-buried vertical direction in the described body of wall, and at the inboard pre-buried stressometer of body of wall.
The utility model has been announced the wall of leading of the outer wall of basement that is adapted to the prefabricated sinking of above-mentioned merogenesis simultaneously, and described metope of leading nearly basement wall one side of wall is concaveconvex structure.About the partial distance metope 1cm that protrudes, play the correcting wall, the space that recess forms is as returning passage on the mud.
The utility model beneficial effect is as follows:
1, the churning through hole of vertical direction is reserved at this body of wall center across a certain distance, can in through hole, transfer high-pressure rotary-spray drilling rod 14 to the wall in the soil layer, by the soil body under the churning jet cutting wall, make body of wall sink down into desired depth by deadweight, construction is very convenient quick, and the pipeline of mud is injected in the churning hole can also be as displacement mud the time.
2, this body of wall need not grooving and lifting because merogenesis is prefabricated in position, can whole outer wall of basement is prefabricated as one, and framing around the corner only, body of wall length can reach 1000m, and overall height can reach 100m, and other space enclosing structure can't be reached.
3, the deformation observation pipe of pre-buried vertical direction in the precast wall body, and at the inboard pre-buried stressometer (8) of body of wall, so that in Excavation Process, monitor the distortion situation and the stressing conditions of body of wall.
4, this body of wall can well guarantee the shape and the compactness of body of wall owing to smash prefabricatedly with top-pour on ground, sink down into underground after, not only can be used as foundation pit enclosure structure, more can directly use as outer wall of basement, can save a large amount of construction investments.
5, reach 70% of design strength at the concrete strength of precast wall body and steel strand carried out stretch-draw when above and apply prestressing force, but the prestressing force merogenesis apply, also can be set to back disposable applying in that body of wall is heavy.Application " prestressing force locking ground tackle " locks after applying prestressing force; and by the injected hole on the locking ground tackle; in thin-wall steel tube, inject hardening slurry; slurry content is curable epoxy resin or the little swollen cement paste of high strength, can guarantee prestressed persistence after slurries solidify and as the topping of prestress wire.
6, the circular casement of the semi-circular guiding groove double as joint at this body of wall two ends, the two sides body of wall is to being connected into a circle, be full of solidified slip in the circular port, again with the drill bit high speed rotary drilling of being with wire brush, the limit is crept into marginal not and is gone into clear water, hole wall is washed, form cast-in-place joint with the impervious expansion concrete of conduit underwater grouting then; Cast-in-place joint tighness and globality are all reliable.
7, this body of wall guiding plush copper of structurally having semicircle guiding groove in two ends and a bottom cooperates the wall of leading of inside and outside both sides, can guarantee the horizontal location and the verticality of body of wall among the sinking construction.
8, the inboard precalculated position of this body of wall embedded bar connector is so that link to each other with other underground structure.
The utility model outer wall of basement can adopt that significantly original position is prefabricated, its length can reach in the km, joint is few, can ensure the quality of products, can greatly improve efficiency of construction again, and owing to adopt the original position merogenesis prefabricated, as long as the stratum is fit to, can make body of wall reach about hundred meters of overall heights, can satisfy other foundation pit enclosure structures degree of depth that is beyond one's reach.In addition, the utility model body of wall need not to use Lifting implements can guarantee construction safety and facility to greatest extent, further reduces construction cost.
Description of drawings
Fig. 1 is the longitudinal profile structural representation of the utility model outer wall of basement along thickness of wall body;
Fig. 2 leads wall plan structure schematic diagram for the utility model outer wall of basement band part;
Fig. 3 is the utility model outer wall of basement perspective view;
Fig. 4 is the utility model churning sinking state sectional structure schematic diagram
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing and specific embodiment.
Shown in Fig. 1～3; the outer wall of basement of the prefabricated sinking of the utility model merogenesis; it is the steel concrete prestressed structure; vertical churning through hole 2 is reserved at body of wall 1 center; body of wall footing width is slightly wideer than body of wall; the inside and outside all or part of employing steel strand 3 of two-layer vertical main muscle of described body of wall; described steel strand are through in the thin-wall steel tube 4; inside and outside thin-wall steel tube 4 bottoms, both sides are " U " type and are connected; layer protective layer 31 is built in the periphery of steel strand 3 in the thin-wall steel tube 4, and topping 31 is cement paste cured layer or epoxy resin cure layer.Steel strand 3 are locked by prestressed anchor 5 in the upper surface of body of wall 1, the inboard embedded bar connector of body of wall, described body of wall two ends are semicircle guiding groove 6, the body of wall lower end is provided with the target seeker 7 of protrusion, the deformation observation pipe 8 of pre-buried vertical direction in the described body of wall, and at the inboard pre-buried stressometer 9 of body of wall.When the body of wall merogenesis presets, be provided with steel plate for sealing water 10 at the merogenesis place.
As shown in Figure 2, the metope of leading wall 11 nearly basement wall 1 one sides of the outer wall of basement of the prefabricated sinking of described merogenesis is concaveconvex structure.
The utility model outer wall of basement is prefabricated in groove, should first construction cushion coat before prefabricated, bore vertical guiding boring 12 in the soil layer below the body of wall at a certain distance, the aperture and the spacing of guiding boring 12 are decided on the intensity of soil layer under the wall, drilling depth covers with prefabricated guiding plush copper plate for predetermined body of wall submergence depth, aperture.The part of guiding plush copper plate double as bed course, and be anchored at body of wall 1 bottom with body of wall is connected as a single entity by reserved steel bar, the guiding plush copper moved vertically downward along guiding boring when body of wall sank, the horizontal location and the verticality of assurance body of wall.The end-fitting place of outer wall of basement is that two involutory semicircle guiding grooves are a circular port, body of wall 1 after sinking and being set to the position is extracted the guiding pipe in the circular hole 13, scrub clean with drill bit steel wire brush, adopt under water the catheter perfusion method to pour into impervious slightly expanded concrete as cast-in-place joint.Can in the joint circular hole, be lowered to reinforcing cage in case of necessity, to increase the strength and stiffness of joint.
Claims (5)
1. the outer wall of basement of the prefabricated sinking of merogenesis; it is the steel concrete prestressed structure; vertical churning through hole (2) is reserved at body of wall (1) center; body of wall footing width is slightly wideer than body of wall; the inside and outside two-layer all or part of employing steel strand of vertical main muscle (3) of described body of wall; described steel strand are through in the thin-wall steel tube (4); inside and outside both sides thin-wall steel tubes (4) bottom communicates; layer protective layer (31) is built in the periphery of the interior steel strand of thin-wall steel tube (4) (3); steel strand (3) are locked by prestressed anchor (5) in the upper surface of body of wall (1); the inboard embedded bar connector of body of wall; it is characterized in that described body of wall two ends are semicircle guiding groove (6), the body of wall lower end is provided with the target seeker (7) of protrusion; the deformation observation pipe (8) of pre-buried vertical direction in the described body of wall, and at the inboard pre-buried stressometer (9) of body of wall.
2. the outer wall of basement of the prefabricated sinking of merogenesis according to claim 1 is characterized in that, when the body of wall merogenesis presets, is provided with steel plate for sealing water (10) at the merogenesis place.
3. the outer wall of basement of the prefabricated sinking of merogenesis according to claim 1 is characterized in that, described topping (31) is cement paste cured layer or epoxy resin cure layer.
4. the outer wall of basement of the prefabricated sinking of merogenesis according to claim 1 is characterized in that, inside and outside both sides thin-wall steel tubes (4) bottom becomes " U " type to be communicated with.
5. the wall of leading as the outer wall of basement of the prefabricated sinking of each described merogenesis of claim 1～4 is characterized in that, described metope of leading nearly basement wall (1) one side of wall (11) is concaveconvex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201532693U CN201296932Y (en) | 2008-09-19 | 2008-09-19 | Segmentation prefabricating sunken outer wall and guide wall thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201532693U CN201296932Y (en) | 2008-09-19 | 2008-09-19 | Segmentation prefabricating sunken outer wall and guide wall thereof |
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| Publication Number | Publication Date |
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| CN201296932Y true CN201296932Y (en) | 2009-08-26 |
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| CNU2008201532693U Expired - Fee Related CN201296932Y (en) | 2008-09-19 | 2008-09-19 | Segmentation prefabricating sunken outer wall and guide wall thereof |
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| CN (1) | CN201296932Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409799A (en) * | 2011-11-25 | 2012-04-11 | 北京市第三建筑工程有限公司 | Fair-faced concrete interlaminar open joint guide wall structure and construction method thereof |
| CN103590423A (en) * | 2013-11-30 | 2014-02-19 | 苏州建鑫建设集团有限公司 | Cast-in-place concrete PVC hollow tube wallboard used for basement exterior wall |
| CN106149680A (en) * | 2016-08-26 | 2016-11-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of coercion underground continuous wall with U-shaped post stretching stretch-draw and application thereof |
| CN112030948A (en) * | 2020-07-16 | 2020-12-04 | 广东华隧建设集团股份有限公司 | Construction method for linearly arranging unbonded prestress pre-tightening of underground continuous wall |
-
2008
- 2008-09-19 CN CNU2008201532693U patent/CN201296932Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409799A (en) * | 2011-11-25 | 2012-04-11 | 北京市第三建筑工程有限公司 | Fair-faced concrete interlaminar open joint guide wall structure and construction method thereof |
| CN102409799B (en) * | 2011-11-25 | 2013-05-29 | 北京市第三建筑工程有限公司 | Fair-faced concrete interlaminar open joint guide wall structure and construction method thereof |
| CN103590423A (en) * | 2013-11-30 | 2014-02-19 | 苏州建鑫建设集团有限公司 | Cast-in-place concrete PVC hollow tube wallboard used for basement exterior wall |
| CN103590423B (en) * | 2013-11-30 | 2015-11-11 | 苏州建鑫建设集团有限公司 | For the cast-in-place concrete PVC hollow tube wallboard of outer wall of basement |
| CN106149680A (en) * | 2016-08-26 | 2016-11-23 | 上海市政工程设计研究总院（集团）有限公司 | A kind of coercion underground continuous wall with U-shaped post stretching stretch-draw and application thereof |
| CN112030948A (en) * | 2020-07-16 | 2020-12-04 | 广东华隧建设集团股份有限公司 | Construction method for linearly arranging unbonded prestress pre-tightening of underground continuous wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20160919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |