CN2343204Y - Inverted-cone pile - Google Patents
Inverted-cone pile Download PDFInfo
- Publication number
- CN2343204Y CN2343204Y CN 98224442 CN98224442U CN2343204Y CN 2343204 Y CN2343204 Y CN 2343204Y CN 98224442 CN98224442 CN 98224442 CN 98224442 U CN98224442 U CN 98224442U CN 2343204 Y CN2343204 Y CN 2343204Y
- Authority
- CN
- China
- Prior art keywords
- inverted
- model
- utility
- inverted cone
- pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002689 soil Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 5
- 239000004927 clay Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a pile whose profile presents an inverted cone shape. The inverted-cone pile is characterized in that the profile presents an inverted cone shape or a truncated and inverted cone shape, and the horizontal section can be circular, triangular, quadrilateral or pentagonal, etc. The utility model, based on the principle of modern dynamics, utilizes the inclined planes of an inverted cone, converts a part of perpendicularly downward force into horizontal force, forms an advantageous state that receives compressive stress in three directions in a pyramid soil layer, can fully utilize the mechanical properties of a crust layer, and notably reduces more perpendicularly downward load in a unit area than natural foundations or short pile foundations, which improves bearing capacity and reduces settling amount thereby.
Description
The utility model belongs to the technical field of the stake in the underground structure, particularly relates to the stake that a kind of profile is back taper.
Present single or multiple lift building when building structure thing load surpasses natural foundation bearing capacity, has limited the construction of structures height; Sometimes adopt steel concrete stub consolidated subsoil in the hope of improving its supporting capacity, stake commonly used is long 6 meters to 10 meters, cross sections size 200mm * 200mm, and for example: ((G201) specification 8000 * 200 * 200 is lived in Shanghai to the steel concrete stub.Soft foundation, as the 2nd layer of soft soil foundation in Shanghai area is " crust layer " of the degree of depth in 0 to 3 meter scope, the single or multiple lift building is when adopting stub, passed this crust layer, fail to make full use of its bearing capacity, and the bearing stratum at stake point place is arranged on weak mud matter silty clay or silt clay the 3rd layer or the 4th layer of foundation soil, thereby cause bearing capacity low, defectives such as sedimentation is big, and construction complexity and cost are big.
The purpose of this utility model is, a kind of shortcoming that can effectively overcome above-mentioned natural ground or stub ground is provided, and can improve bearing capacity and easy construction, the back taper stake that cost is low.
The technical solution of the utility model is, a kind of back taper stake, and its characteristics are that profile is back taper.
Owing to adopt such scheme, be not difficult to draw as drawing a conclusion, the utility model is according to modern mechanics principle, utilize the inclined-plane of reverse taper, part power is vertically downward become horizontal force, in the cone soil layer, form favourable three dimension stress stress state, can make full use of the mechanical property of crust layer, significantly reduced unit area load vertically downward than natural ground or stub ground, thereby improved bearing capacity and reduce settling amount.The industrial utilization of tool height.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the structural representation of the another embodiment of the utility model;
Fig. 3 is the structural representation of another embodiment of the utility model.
Profile of the present utility model is back taper among Fig. 1, and the horizontal section is up big and down small circle.Profile of the present utility model is back taper among Fig. 2, and the horizontal section is up big and down small triangle, the bottom butt.Profile of the present utility model is back taper among Fig. 3, and the horizontal section is up big and down small quadrangle.More than the length and width commonly used, dark size of three kinds of back taper stakes all in 2 meters.Single pile size, bearing capacity and a clump of piles are arranged and will be determined with mechanical calculation according to construction of structures load and geologic report.According to definite position by definite size after scraping out clay model on the ground, concreting after the full length of time, also can form by prefabricated back pile sinking.Shanghai crust layer natural foundation bearing capacity " old eight tons " can only be built residential building below six layers, can make eight layers after utilizing the back taper stake, and the unit's of making square meter cost is low and be convenient to novel square design.This back taper pile capacity is more much bigger than natural ground or stub, and sedimentation is little, and easy construction need not be driven piles, and cost only is 20% of a stub, and accurate positioning, and the duration is short, needn't please professional contingent construct in addition.
Claims (3)
1. back taper stake, it is characterized in that: profile is back taper.
2. by the described a kind of back taper stake of claim 1, it is characterized in that: the horizontal section can be circle, triangle, quadrangle or pentagon etc.
3. by the described a kind of back taper stake of claim 1, it is characterized in that: profile is the butt back taper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98224442 CN2343204Y (en) | 1998-06-30 | 1998-06-30 | Inverted-cone pile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98224442 CN2343204Y (en) | 1998-06-30 | 1998-06-30 | Inverted-cone pile |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2343204Y true CN2343204Y (en) | 1999-10-13 |
Family
ID=33975304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 98224442 Expired - Fee Related CN2343204Y (en) | 1998-06-30 | 1998-06-30 | Inverted-cone pile |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2343204Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103711124A (en) * | 2013-12-30 | 2014-04-09 | 江苏省交通科学研究院股份有限公司 | Concrete tapered pile foundation |
CN106917396A (en) * | 2017-02-16 | 2017-07-04 | 东北大学 | A kind of taper foundation reinforcement method |
-
1998
- 1998-06-30 CN CN 98224442 patent/CN2343204Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103711124A (en) * | 2013-12-30 | 2014-04-09 | 江苏省交通科学研究院股份有限公司 | Concrete tapered pile foundation |
CN103711124B (en) * | 2013-12-30 | 2016-03-23 | 苏交科集团股份有限公司 | Concrete tapered pile basis |
CN106917396A (en) * | 2017-02-16 | 2017-07-04 | 东北大学 | A kind of taper foundation reinforcement method |
CN106917396B (en) * | 2017-02-16 | 2018-12-21 | 东北大学 | A kind of taper foundation reinforcement method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: ZHANG LAIJIAN Free format text: FORMER NAME OR ADDRESS: SHANGHAI ENGINEERING CHEMICAL DESIGN INST. |
|
CP01 | Change in the name or title of a patent holder |
Patentee after: Zhang Laijian Patentee before: Shanghai Engineering Chemical Design Inst. |
|
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |