CN204959737U - Stake of drilling extrusion pressure -bearing type bag formula branch - Google Patents
Stake of drilling extrusion pressure -bearing type bag formula branch Download PDFInfo
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- CN204959737U CN204959737U CN201520726665.0U CN201520726665U CN204959737U CN 204959737 U CN204959737 U CN 204959737U CN 201520726665 U CN201520726665 U CN 201520726665U CN 204959737 U CN204959737 U CN 204959737U
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Abstract
The utility model relates to a stake of drilling extrusion pressure -bearing type bag formula branch comprises the stake of reinforced concrete main part, water under high pressure mud extrusion branch, geotechnological bag, slip casting pipe etc. The position of geotechnique's bag on the steel reinforcement cage and drilling extrusion branch position are corresponding, and all geotechnological bag bags of same high department are at first fixed on strip geotechnique cloth, and firmly fixed, horizontal slip casting branch pipe is all connected to all geotechnological bag bags to on being connected to perpendicular slip casting house steward, the connection between the preceding latter adopts many siphunculuss joint to connect, adopt the screwed joint that has the sealing washer to connect being connected between horizontal slip casting branch pipe and geotechnological bag to it prevents the thick liquid backward flow to set up one -way rubber seal raft. The utility model relates to a stake of drilling extrusion pressure -bearing type bag formula branch branch quality is reliable, overcomes conventional the dish pile driving construction method dish shortcomings such as hole, undergauge, shaping difficulty of easily collapsing, also has better suitability in stratum such as the limited weak soil of conventional method, sand, gains better technological economic benefits.
Description
Technical field
The utility model relates to a kind of boring extruding pressure-bearing type bellows branch pile, belongs to pile foundation engineering field, is applicable to the construction of expanding branch grouting pile, be specially adapted to extruding-enlarging branch tray in the stratum such as weak soil, sand and be difficult to shaping extruding-enlarging branch tray branch pile construction.
Background technology
Along with the extensive application of pile foundation in Practical Project, its stressed bearing mechanism has obtained large quantity research, and a large amount of new pile-type is constantly developed, and is successfully applied in Practical Project.Expanding branch grouting pile is a kind of pile-type developed on the basis of multistage under-reamed pile technology, a kind of dedicated hydraulic branch squeeze equipment and existing piling machinery coordinative composition of equipments is adopted to use, suitable soil layer in stake holes, squeezed formation of carrying out pressurizeing " is propped up " or " dish ", simultaneously also compacted for surrounding soil compacting, part improves the physical features of foundation soil, mechanical index, undermine potentiality effectively, the end bearing surface increasing single pile is amassed, change into multiple end by originally only having an end point friction pile held a little and hold friction end bearing pile a little, thus change the bearing mechanism of stake, pile bearing capacity is increased considerably.
The squeezed construction of conventional branch adopts hydraulic supporting disk squeezing and expanding machine, this machinery is only applicable to carry out squeezed construction in the viscous soil horizon of plastic ~ hard plastic shape, and because the release of pressure causes squeezed branch rebound deformation after bow pressing arm reclaims, for soft layer, loose ~ closely knit gravel soil layer, along with the recovery of bow pressing arm, squeezed branch in soft layer collapses thereupon, squeezed branch in gravel soil layer is difficult to keep original extrusion shapes due to the extruding disturbance of grit, in addition, the loose fines that extruding bifurcation is piled up also is difficult to remove completely in follow-up clear hole, thus shape after causing branch's concrete perfusion, quality does not all reach expection.
For squeezed branch castinplace pile, ensure the shape of squeezed branch, improve the important leverage that the full property of concrete in branch is its Quality advance, this is also key issue to be solved in the utility model.
Utility model content
The purpose of this utility model is for existing squeezed branch castinplace pile Problems existing in construction, provides a kind of boring extruding pressure-bearing type bellows branch pile improving construction quality.
This boring extruding pressure-bearing type bellows branch pile, comprises reinforcing cage, filling concrete pile body, cement paste extruding-enlarging branch tray, geotechnological pouch and Grouting Pipe; The position of described geotechnological pouch on reinforcing cage is corresponding with extruding-enlarging branch tray hole site, and all geotechnological pouch at sustained height place is fixed in a ring-type geotextiles, and this ring-type geotextiles is looped around on reinforcing cage fixing; Described Grouting Pipe is divided into horizontal grouting arm and vertical slip casting house steward; All geotechnological pouches all connect horizontal grouting arm, and are connected on vertical slip casting house steward, and the connection between horizontal grouting arm with vertical slip casting house steward adopts multiple way union to be connected; Connection between horizontal grouting arm and geotechnological pouch adopts the screwed joint with sealing ring to connect, and arranges unidirectional rubber sealed valve and prevent slurry reflux; Be placed with pipe in slip casting in described vertical slip casting house steward in advance, grout outlet place, lower end arranges a wedge-type seal plug.
The beneficial effects of the utility model are:
1, geotechnological pouch is enclosure pouches, and branch adapts with extruding, and by injecting water under high pressure mud in pouch, pouch is outwards expanded, to fill whole branch space, the branch overcoming conditional branch stake easily collapses, the defect of ground adaptability difference;
2, the geotechnological pouch that each branch is corresponding all connects horizontal grouting arm, each horizontal grouting arm is all connected on the vertical slip casting house steward of pile center, all Grouting Pipe and geotechnological pouch are all fixed on reinforcing cage, and slip casting house steward high-pressure slip-casting makes branch's pouch expand all branches;
3, in the sandy soils of easy collapse hole and the soft layer of easily shrinkage cavity, adopt this technology all can ensure to extrude the shaping quality of branch, expand the scope of application of conditional branch stake.
Accompanying drawing explanation
Fig. 1 is boring extruding pressure-bearing type bellows branch pile structural representation;
Fig. 2 is boring extruding pressure-bearing type bellows branch pile structure A-A sectional drawing.
Description of reference numerals: 1-reinforcing cage, 2-holes, 3-extruding-enlarging branch tray hole, 4-diagonal brace, 5-geotechnique pouch, 6-ring-type geotextiles, the vertical slip casting house steward of 7-, 8-horizontal grouting arm, 9-filling concrete pile body, 10-cement paste extruding-enlarging branch tray, 11-casing, 12-soft layer, 13-gravel soil layer, 14-argillic horizon, pipe in 15-slip casting.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described further.The explanation of following embodiment just understands the utility model for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
In the utility model example, the involved material such as geotechnological bladder material, reinforcing cage arrangement of reinforcement, strength grade of concrete, strength of cement grout grade repeats no more, emphasis sets forth design feature of the present utility model, be described in further detail the utility model by example below in conjunction with accompanying drawing, this explanation is not limited to following instance.
Fig. 1 is boring extruding pressure-bearing type bellows branch pile structural representation, Fig. 2 is boring extruding pressure-bearing type bellows branch pile structure A-A sectional drawing, with reference to shown in Fig. 1 ~ 2, boring extruding pressure-bearing type bellows branch pile comprises adjacent reinforced concrete bodies stake, the squeezed branch of cement paste high pressure, geotechnological pouch, ring-type geotextiles, Grouting Pipe etc.
Bored pile diameter 1000mm, long 20m, stratum is soft layer, the thick plastic shape argillic horizon of 6m, the thick gravel soil layer of 4m that 10m is thick from top to bottom successively.2 branches are set in Soft Soil Layer, at a distance of 3m; 1 branch in argillic horizon; 1 force bearing disk is set in gravel soil layer.Each branch is that cross is arranged, height 600mm, length 500mm, thickness 200mm, corresponding geotechnological pouch makes according to this size.Vertical slip casting house steward adopts the pvc pipe of diameter 50mm, horizontal grouting arm adopts the pvc pipe of diameter 20mm, connection between vertical slip casting house steward and horizontal grouting arm adopts six siphunculus to connect, connect vertical slip casting house steward up and down, connect four horizontal grouting arms around, all adopt helixseal to connect.Be connected by helixseal between horizontal grouting arm with geotechnological pouch, junction adds a unidirectional rubber seal raft and prevents high pressure slurry reflux.
Boring extruding pressure-bearing type bellows branch pile of the present utility model is colligation geotechnique pouch on reinforcing cage, and connect Grouting Pipe, geotechnological pouch is made to aim at extruding-enlarging branch tray in reinforcing cage decentralization process, to the squeezed branch of geotechnological pouch mesohigh grout injection and the periphery soil body, formation pressure-bearing type bellows branch like this, ensure that shape and the grout pouring quality of branch.
Claims (1)
1. a boring extruding pressure-bearing type bellows branch pile, is characterized in that: comprise reinforcing cage (1), filling concrete pile body (9), cement paste extruding-enlarging branch tray (10), geotechnological pouch (5) and Grouting Pipe; The position of described geotechnological pouch (5) on reinforcing cage (1) is corresponding with extruding-enlarging branch tray hole (3) position, the all geotechnological pouch (5) at sustained height place is fixed on a ring-type geotextiles (6), and it is upper fixing that this ring-type geotextiles (6) is looped around reinforcing cage (1); Described Grouting Pipe is divided into horizontal grouting arm (8) and vertical slip casting house steward (7); All geotechnological pouches (5) all connect horizontal grouting arm (8), and being connected on vertical slip casting house steward (7), the connection between horizontal grouting arm (8) with vertical slip casting house steward (7) adopts multiple way union to be connected; Connection between horizontal grouting arm (8) and geotechnological pouch (5) adopts the screwed joint with sealing ring to connect, and arranges unidirectional rubber sealed valve and prevent slurry reflux; Be placed with pipe (15) in slip casting in described vertical slip casting house steward (7) in advance, grout outlet place, lower end arranges a wedge-type seal plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726665.0U CN204959737U (en) | 2015-09-18 | 2015-09-18 | Stake of drilling extrusion pressure -bearing type bag formula branch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726665.0U CN204959737U (en) | 2015-09-18 | 2015-09-18 | Stake of drilling extrusion pressure -bearing type bag formula branch |
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| Publication Number | Publication Date |
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| CN204959737U true CN204959737U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520726665.0U Active CN204959737U (en) | 2015-09-18 | 2015-09-18 | Stake of drilling extrusion pressure -bearing type bag formula branch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284433A (en) * | 2016-08-22 | 2017-01-04 | 陕西水木盛元科技工程有限责任公司 | A kind of saline soil area concrete foundation LP blades protective layer is constructed into covering device |
| CN106320388A (en) * | 2016-08-22 | 2017-01-11 | 中铁第勘察设计院集团有限公司 | Construction process and method for erosion-resistant protective layer of concrete foundation in salty soil zone |
| CN108661050A (en) * | 2018-08-03 | 2018-10-16 | 刘寅平 | Modified Prefabricated hollow pipe tree root pilework, forming method and cement slurry |
| CN109440832A (en) * | 2018-11-27 | 2019-03-08 | 福建卓越建设工程开发有限公司 | Anchor cable can be recycled pressure dispersing type pouch and expand body anti-floating pile and construction method |
| CN115262538A (en) * | 2022-09-01 | 2022-11-01 | 沈晓静 | Concrete pile with circular drum for prefabricated pile foundation structure and construction method thereof |
-
2015
- 2015-09-18 CN CN201520726665.0U patent/CN204959737U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284433A (en) * | 2016-08-22 | 2017-01-04 | 陕西水木盛元科技工程有限责任公司 | A kind of saline soil area concrete foundation LP blades protective layer is constructed into covering device |
| CN106320388A (en) * | 2016-08-22 | 2017-01-11 | 中铁第勘察设计院集团有限公司 | Construction process and method for erosion-resistant protective layer of concrete foundation in salty soil zone |
| CN106320388B (en) * | 2016-08-22 | 2018-05-01 | 中铁第一勘察设计院集团有限公司 | Saline soil area concrete foundation LP blades protective layer construction technology and engineering method |
| CN106284433B (en) * | 2016-08-22 | 2018-05-01 | 陕西水木盛元科技工程有限责任公司 | A kind of saline soil area concrete foundation LP blades protective layer construction complexes |
| CN108661050A (en) * | 2018-08-03 | 2018-10-16 | 刘寅平 | Modified Prefabricated hollow pipe tree root pilework, forming method and cement slurry |
| CN109440832A (en) * | 2018-11-27 | 2019-03-08 | 福建卓越建设工程开发有限公司 | Anchor cable can be recycled pressure dispersing type pouch and expand body anti-floating pile and construction method |
| CN115262538A (en) * | 2022-09-01 | 2022-11-01 | 沈晓静 | Concrete pile with circular drum for prefabricated pile foundation structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181228 Address after: 230088 Xishu Building, No. 502 Wangjiangxi Road, Hefei High-tech Zone, Anhui Province (Enterprise Finance Building) Patentee after: ANHUI ROAD&BRIDGE ENGINEERING GROUP CO., LTD. Address before: 310015 room 3, unit 3, Wanda Commercial Center, Hangzhou, Zhejiang, 1901. Patentee before: Hangzhou Jiang Run Science and Technology Ltd. |