CN104863121A - Wedge-shaped pipe pile - Google Patents
Wedge-shaped pipe pile Download PDFInfo
- Publication number
- CN104863121A CN104863121A CN201510342448.6A CN201510342448A CN104863121A CN 104863121 A CN104863121 A CN 104863121A CN 201510342448 A CN201510342448 A CN 201510342448A CN 104863121 A CN104863121 A CN 104863121A
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- China
- Prior art keywords
- pile tube
- wedge shape
- wedge
- pipe pile
- shaped pipe
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a member in building construction, particularly relates to a wedge-shaped pipe pile used in ground foundation engineering, and belongs to the technical field of buildings. The outer diameter of the large end of the wedge-shaped pipe pile is 400-600mm. The specification of the wedge-shaped pipe pile is specially designed, and the design size of the wedge-shaped pipe pile is optimized on the premise that pile body structure advantages are guaranteed, and therefore the wedge-shaped pipe pile is conveniently used in industry, production and use cost is reduced, and smooth transition and replacement can be achieved between the wedge-shaped pipe pile and existing straight pipe pile production lines, products, use devices and use environments.
Description
Technical field
The present invention relates to the component in a kind of building operations, particularly a kind of wedge shape pile tube adopted in ground foundation engineering, belongs to technical field of buildings.
Background technology
Generally pile tube is used in the structure foundation foundation construction of current China.According to State Statistics Bureau's statistics in 2014, the use amount of pile tube was about 20,000,000,000 meters, was straight shape pile tube.
Straight shape pile tube is the structure that the two ends diameter of pile body is identical, and its load form is carried by stake end and side friction power two parts form.But side friction power is often only used as safety stock in design, side friction power in practice of construction and construction is underused, causes very large bearing capacity waste, finally cause the huge waste of potential resource.
Chinese patent 201010103918.0 also discloses the mode combinationally used of a kind of prestressing force wedge shape pile tube and pile for prestressed pipe, also discloses the mode that a kind of prestressed wedge shape concrete tubular pile and wedge shape concrete tubular pile combinationally use in addition in Chinese patent 201120244821.1.But only carry out rough theory to the structure of wedge shape pile tube in two patent documents to illustrate, substantial research has not been carried out to the concrete specification of wedge shape pile tube.
In above-mentioned two sections of patents, its Problems existing is: not long to the stake of wedge shape pile tube, stake footpath and the further research customized really of pile body tapering, make wedge shape pile tube sizing specification that is difficult, pile body many, pile body produces punching block investment greatly, Wiring apparatus and anchor slab model also many, productivity effect is low, makes wedge shape pile tube be difficult to reach optimization and the balance of use cost, construction cost and construction effect aborning, and this is also restriction wedge shape pile tube large-scale application one of the main reasons.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of wedge shape pile tube is provided, by the design to pile body specification, reach the optimization in the production of wedge shape pile tube, use cost and effect, simultaneously for the standardized production of wedge shape pile tube lays the foundation, to promote that wedge shape pile tube substitutes the straight shape pile tube of tradition in building operations.
The technical solution used in the present invention is as follows:.
A kind of wedge shape pile tube, the external diameter of the large end of described pile tube is 400-600mm.
Further, the external diameter of the large end of described pile tube is 400mm, 500mm or 600mm.
Wedge shape pile tube of the present invention, the external diameter of described pile tube small end is 240-400mm.
Further, the external diameter of described pile tube small end is 240mm, 300mm or 400mm.
Wedge shape pile tube of the present invention, the length of described pile tube is 6-12m.
Further, described pile tube length is 6m, 7.5m, 9m, 10.5m or 12m.
Further, the tapering of described pile tube is 1.5:100-3.5:100.
Wedge shape pile tube of the present invention, described pile tube is the structure of hollow.
Further, the wall thickness of described pile tube is 80-140mm.
Wedge shape pile tube of the present invention, is provided with prestressed reinforcement framework in described pile tube.
Wedge shape pile tube of the present invention, described pile tube adopts the concrete prefabricated of C60-C80 to form.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: wedge shape pile tube of the present invention, the concrete specification of pile tube is designed, its design size is optimized on the basis ensureing pile body structure advantage, make it easy to commercial Application, reduce the cost produced and use, and smooth transition and replacement can be carried out with existing straight type pile tube production line, product and use equipment, environment.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the length direction cross section view of wedge shape pile tube of the present invention;
Fig. 2 is the radial section schematic diagram of wedge shape pile tube of the present invention;
Fig. 3 is the stressed signal of straight shape pile tube;
Fig. 4 is the stressed signal of wedge shape pile tube of the present invention.
Mark in figure: the large end external diameter of 1-pile tube, 2-cage of reinforcement, a-, b-small end external diameter, c-wall thickness, L-length.
Detailed description of the invention
All features disclosed in this manual, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this manual, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Embodiment
A kind of wedge shape pile tube of the present invention, as shown in Figure 1, one end diameter of pile tube 1 is comparatively large, and the diameter of the other end is less, and forms the structure of wedge shape for its contour structures.The inside of general pile tube 1 is provided with cage of reinforcement 2 as support body.
In the present embodiment, described pile tube 1 greatly end external diameter a is 400-600mm.The object of this design is: in specification limit, give full play to the advantage that the structure of wedge shape pile tube own has, and to overcome the drawback of existing straight shape stake, improves bearing capacity and the stressed effect of pile body itself, improves the utilization rate of resource.In addition, another free-revving engine is also the design of being held greatly external diameter a by pile tube 1, the smooth and seamless realized on the production technology of wedge shape pile tube and existing straight shape stake, service condition and piling technique, equipment is connected, and does not increase production and the use cost of wedge shape pile tube.
The external diameter that pile tube 1 described in the present invention is held greatly selects the size design of 400mm, 500mm or 600mm further.
In order to ensure the intensity of wedge shape pile tube itself in the present invention, and reduce the difficulty of pile body in construction on guarantee pile body result of use basis, described pile tube 1 small end external diameter b is 240-400mm.Described pile tube 1 small end external diameter b selects the size design of 240mm, 300mm or 400mm further.
The design length L of pile tube 1 described in the present invention is 6-12m.According to executing geological conditions, the optional length L of described pile tube 1 is the size design of 6m, 7.5m, 9m, 10.5m or 12m.
The tapering of pile tube 1 described in the present invention is 1.5:100-3.5:100, and tapering design formulas is (a-b)/L, in the present embodiment, external diameter a can be held to be on the basis of 400-600mm and taper design greatly at pile tube 1, get arbitrarily length L or the small end external diameter b of pile tube.
Based on above-mentioned design, the pile tube 1 of wedge shape pile tube of the present invention can also select the structure of hollow.Hollow hole can be circle, polygon or other are irregularly shaped.Preferred circular port design in the present invention, as shown in Figure 2, the wall thickness c based on pile tube described in this 1 is that 80-140mm is optional, as 80mm, 100mm, 120mm, 140mm etc.
In order to improve the mechanical strength of described wedge shape pile tube further, the cage of reinforcement 2 arranged in pile tube 1 is prestressed reinforcement framework.
Wedge shape pile tube of the present invention adopts the C60-C80 concrete centrifugal method of forming to be made, and its satisfactory material also can be adopted to make, and be not limited only to concrete.Therefore pile tube 1 small end external diameter b size design also ensure that the reliable of pile tube small end mechanical performance.
Proportionally do not draw in Fig. 1 and 2 of the present invention, only as structural representation, do not show its concrete size relationship.
According to above-mentioned mentality of designing of the present invention and design specifications, in the present embodiment, each specification of wedge shape pile tube is enumerated, as following table:
In upper table, strength enhancing test is in sandy soil geologic structure, this wedge shape pile tube and equal length and the large comparative result holding the straight shape pile tube of external diameter a specification.The carrying that wedge shape pile tube plays about 35-40% compared to straight shape pile tube average energy in clay promotes, and the carrying that wedge shape pile tube plays about 40-50% compared to straight shape pile tube average energy in sand ovum soil promotes.
In the present embodiment, wall thickness c according to circumstances can select the design of 80mm.
Straight shape pile tube and wedge shape pile tube as shown in Figure 3 and Figure 4 stressed in the soil body.When wedge shape pile tube squeezes into the soil body, Pile side soil repeatedly moment high strength squeeze and destroy, the soil body density after consolidation increases, and intensity improves greatly.Also have benefited from the change of stress form, embodiment of the present invention pile body is under the main stress bar and subsidiary stress of stake soil, and wedge shape pile tube can improve 30%-50% compared to the supporting capacity of straight shape stake.In addition, have benefited from the structure design of wedge shape pile tube of the present invention, particularly large and small end external diameter, taper design, make can effectively improve piling efficiency in piling construction, and be conducive to preventing adjacent tubes inter-pile soil body stressed and swelling.The present invention is by the specifications design of pile body, also be convenient to combinationally using under different soil conditions of different size pile body, the such as pile body of 400-240 specification, can combinationally use with the pile body of 600-400 specification, is also convenient to wedge shape pile tube of the present invention and existing straight shape pile tube combinationally uses.
In practice of construction, the straight shape stake of same specification, the segment distance (being about 50-80mm) that the soil body under pile cap all can sink larger.The present invention's observation by experiment, due to the reinforcement of pile soil common action, make building settlement minimum (reaching 2-4mm), stake, soil, cushion cap entirety are united stressed, and building is safer.
Wedge shape pile tube is compared to straight shape pile tube, and its volume energy saves 0.05m
3/ m, due to the raising of bearing capacity of single pile, greatly can save the usage quantity of stake, cushion cap about saves 20%, and transport about saves 10%, is 20,000,000,000 meters in annual China straight shape pile tube volume of production and marketing, if popularization rate can reach 40%(that is 8,000,000,000 meters), average cost 150 yuan/m, can save cost 12,000 hundred million yuan/year, can produce huge social benefit and economic worth.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (10)
1. a wedge shape pile tube, is characterized in that: the external diameter of the large end of described pile tube is 400-600mm.
2. wedge shape pile tube as claimed in claim 1, is characterized in that: the external diameter of the large end of described pile tube is 400mm, 500mm or 600mm.
3. wedge shape pile tube as claimed in claim 1, is characterized in that: the external diameter of described pile tube small end is 240-400mm.
4. wedge shape pile tube as claimed in claim 3, is characterized in that: the external diameter of described pile tube small end is 240mm, 300mm or 400mm.
5. wedge shape pile tube as claimed in claim 1, is characterized in that: the length of described pile tube is 6-12m.
6. wedge shape pile tube as claimed in claim 5, is characterized in that: described pile tube length is 6m, 7.5m, 9m, 10.5m or 12m.
7. wedge shape pile tube as claimed in claim 1, is characterized in that: the tapering of described pile tube is 1.5:100-3.5:100.
8. wedge shape pile tube as claimed in claim 1, is characterized in that: described pile tube is the structure of hollow.
9. wedge shape pile tube as claimed in claim 8, is characterized in that: the wall thickness of described pile tube is 80-140mm.
10. wedge shape pile tube as claimed in claim 1, is characterized in that: be provided with prestressed reinforcement framework in described pile tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342448.6A CN104863121A (en) | 2015-06-19 | 2015-06-19 | Wedge-shaped pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342448.6A CN104863121A (en) | 2015-06-19 | 2015-06-19 | Wedge-shaped pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863121A true CN104863121A (en) | 2015-08-26 |
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ID=53909261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510342448.6A Pending CN104863121A (en) | 2015-06-19 | 2015-06-19 | Wedge-shaped pipe pile |
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| Country | Link |
|---|---|
| CN (1) | CN104863121A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030021637A1 (en) * | 2001-07-25 | 2003-01-30 | Won-Hoi Yang | Pile apparatus and construction process of placing concrete pile in ground |
| CN202152461U (en) * | 2011-07-12 | 2012-02-29 | 中国建筑西南勘察设计研究院有限公司 | Pretensioned prestressing wedge-shaped concrete tubular pile |
| CN103103981A (en) * | 2013-02-19 | 2013-05-15 | 河海大学 | Prestress wedge-shaped pipe pile joint technology and construction method thereof |
| CN205024670U (en) * | 2015-06-19 | 2016-02-10 | 刘绍国 | Wedge tubular pile |
-
2015
- 2015-06-19 CN CN201510342448.6A patent/CN104863121A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030021637A1 (en) * | 2001-07-25 | 2003-01-30 | Won-Hoi Yang | Pile apparatus and construction process of placing concrete pile in ground |
| CN202152461U (en) * | 2011-07-12 | 2012-02-29 | 中国建筑西南勘察设计研究院有限公司 | Pretensioned prestressing wedge-shaped concrete tubular pile |
| CN103103981A (en) * | 2013-02-19 | 2013-05-15 | 河海大学 | Prestress wedge-shaped pipe pile joint technology and construction method thereof |
| CN205024670U (en) * | 2015-06-19 | 2016-02-10 | 刘绍国 | Wedge tubular pile |
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Application publication date: 20150826 |