CN203475420U - Three-segment variable cross-section slide-resistant pile - Google Patents
Three-segment variable cross-section slide-resistant pile Download PDFInfo
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- CN203475420U CN203475420U CN201320510973.0U CN201320510973U CN203475420U CN 203475420 U CN203475420 U CN 203475420U CN 201320510973 U CN201320510973 U CN 201320510973U CN 203475420 U CN203475420 U CN 203475420U
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Abstract
The utility model discloses a three-segment variable cross-section slide-resistant pile. The slide-resistant pile comprises a pile top, a pile bottom and a pile body middle segment, wherein connecting transition segments are arranged between the pile top, the pile bottom and the pile body middle segment, the area of the cross section of the pile top and the area of the cross section of the pile bottom are respectively two third to one time the sectional area of the pile body middle segment, and the transition angle alpha is formed by the section of each connecting transition segment. According to different bending moments of the slide-resistant pile, different pile body sections are adopted in a segmentation mode so that material characteristics of reinforced concrete can be brought into optimum play and the use amount of pile body concrete can be reduced to the maximum, the structural design of the slide-resistant pile is more reasonable, pile-well earth rock excavation is reduced, the use amount of the pile body concrete is saved, and the construction period is shortened.
Description
Technical field
The utility model relates to the geological hazard control technical field of the industries such as water conservancy and hydropower, railway, highway, is applicable to the syllogic variable cross-section antislide pile of landslide, Reinforcement Works of Rock Slopes and foundation ditch retaining engineering.
Background technology
Reinforced concrete anti-slide pile is structural measure conventional in landslide control.
By anti-slide pile design principle, antislide pile bending is approximate parabolic type generally, and near sliding surface, moment of flexure is maximum, levels off to gradually zero thereafter to stake top and the stake end.During structure design, generally by moment of flexure size subsection reinforcement (stake section is subsection reinforcement not hour, with simplified design), but antislide pile section is unified, adopt maximum required size uniform section design.
Obviously, the problem that existing uniform section antislide pile exists is: at the less position of moment of flexure, still adopt the cross dimensions design at maximal bending moment position, cause earthwork evacuation and concrete amount unnecessarily to increase, extend the duration, increase investment.Especially the stabilizing piles large for section, the degree of depth is large, quantity is many, the duration is tight, the impact that this problem produces is particularly outstanding.
Summary of the invention
The purpose of this utility model has been to provide a kind of syllogic variable cross-section antislide pile that is applicable to landslide, Reinforcement Works of Rock Slopes and foundation ditch retaining engineering, solves uniform section antislide pile and bending and changes the inharmonious problem that causes engineering quantity to increase, extend the duration.
For achieving the above object, the designed a kind of syllogic variable cross-section antislide pile of the utility model, it comprises stake top, the stake end and pile body interlude, between described stake top and the stake end and pile body interlude for being connected changeover portion, the section area at described stake top and the stake end is 2/3～1 times of cross-sectional area of pile body interlude, and the transition angle that the cross section of described connection changeover portion forms is α.
Further, α=0～50, described transition angle degree.
The concrete aufbauprinciple of syllogic variable cross-section antislide pile
Whole pile body is divided into three sections by cross dimensions difference: pile body adopts larger rectangular cross section size near sliding surface; Stake two ends certain limit adopts less rectangular cross section size; Large section is connected with light section gradual transition; Whole antislide pile pile body width is identical and along same vertical distribution.
The utility model has the advantage of:
1, the utility model is different according to antislide pile moment of flexure, segmentation adopts different pile body sections, material behavior with optimum performance steel concrete, reduce to greatest extent pile concrete consumption, anti-slide pile structure design is more reasonable, save stake well earthwork evacuation and pile body concrete amount, shorten the construction period.
2, the utility model pile body section variation does not change pile body stress, does not reduce antislide pile self-security, does not affect arrangement of reinforcement, is conducive to reduce difficulty of construction.
3, this syllogic variable cross-section antislide pile is in the application of Wushan County, Three Gorges Reservoir Yuhuang Pavilion landslide control engineering, respond well.Not only met Three Gorges Reservoir second phase retaining construction period, and 2 months reductions of erection time, save more than 300 ten thousand yuan of investments, Social benefit and economic benefit is remarkable.
Accompanying drawing explanation
Fig. 1 is the structure chart of syllogic variable cross-section antislide pile;
Fig. 2 is for being variable cross-section design principle figure;
Fig. 3 is that antislide pile is buried schematic diagram underground in landslide;
In figure: 1. a top, 2. at the bottom of, connect changeover portion, 3 and pile body interlude, 4. pile body interlude, 5. M curve, 6. moment envelope, 7. gliding mass, 8. sliding surface.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art understand.
A kind of syllogic variable cross-section antislide pile shown in 1 in figure, it comprises stake top 1, the stake end 2 and pile body interlude 4, between stake top 1 and the stake end 2 and pile body interlude 4 for being connected changeover portion 3, the cross-sectional area at stake top 1 and the stake end 2 is 2/3～1 times of cross-sectional area of pile body interlude 4, and connecting the transition angle that the cross section of changeover portion 3 forms is α=0～50 degree.
Described in Fig. 1 and Fig. 2, the position of different cross section and shared pile body length are determined by the following method: first according to uniform section anti-slide pile design method, determine the cross dimensions of pile body interlude 4 parts and the M curve 5 of bending distribution map, according to Bending moment distribution figure, cross dimensions, geological conditions, difficulty of construction etc., comprehensively determine design moment envelope 6, and then determine stake top 1 and cross dimensions, the length at the stake end 2 and the height that is connected changeover portion 3.The every segment structure of pile body all can provide the bending resistance that is greater than corresponding site calculated bending moment, and the periphery of design moment envelope 6 in calculated bending moment curve 5, guarantees that pile body all sites is all in a safe condition.
Described in Fig. 3, antislide pile construction adopts existing conventional engineering method construction.When gliding mass 7 slides along sliding surface 8, antislide pile provides skid resistance balance Thrust of Landslide.
Whole antislide pile pile body width is identical and along same vertical distribution, only, by antislide pile Height Adjustment change pile body sectional dimension, transition angle angle determines as the case may be.
Claims (2)
1. a syllogic variable cross-section antislide pile, it is characterized in that: it comprises stake top (1), the stake end (2) and pile body interlude (4), between described stake top (1) and an end (2) and pile body interlude () 4 for being connected changeover portion (3), the section area of described stake top (1) and the stake end (2) is 2/3～1 times of cross-sectional area of pile body interlude (4), and the transition angle of the cross section formation of described connection changeover portion 3 is α.
2. syllogic variable cross-section antislide pile according to claim 1, is characterized in that: α=0～50, described transition angle degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510973.0U CN203475420U (en) | 2013-08-20 | 2013-08-20 | Three-segment variable cross-section slide-resistant pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510973.0U CN203475420U (en) | 2013-08-20 | 2013-08-20 | Three-segment variable cross-section slide-resistant pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203475420U true CN203475420U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510973.0U Expired - Lifetime CN203475420U (en) | 2013-08-20 | 2013-08-20 | Three-segment variable cross-section slide-resistant pile |
Country Status (1)
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| CN (1) | CN203475420U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178310A (en) * | 2015-10-10 | 2015-12-23 | 长沙理工大学 | Friction pile and construction method thereof |
| CN105178311A (en) * | 2015-10-10 | 2015-12-23 | 长沙理工大学 | Partially prefabricated friction pile and construction method thereof |
| CN107119699A (en) * | 2017-06-01 | 2017-09-01 | 三峡大学 | A kind of friction pile and its construction method based on the beam of uniform strength |
| CN108532397A (en) * | 2018-06-19 | 2018-09-14 | 云南建投中航建设有限公司 | It is a kind of that the method for roadbed and combined friction pile are consolidated using combined friction pile |
| CN109339078A (en) * | 2018-12-05 | 2019-02-15 | 昆明理工大学 | A kind of rectangular pile is inscribed in the Combined Anti-sliding stake of round stake |
| CN115162377A (en) * | 2022-07-28 | 2022-10-11 | 四川公路桥梁建设集团有限公司 | Variable-section combined slide-resistant pile with upper part and lower part being circular and construction method thereof |
-
2013
- 2013-08-20 CN CN201320510973.0U patent/CN203475420U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178310A (en) * | 2015-10-10 | 2015-12-23 | 长沙理工大学 | Friction pile and construction method thereof |
| CN105178311A (en) * | 2015-10-10 | 2015-12-23 | 长沙理工大学 | Partially prefabricated friction pile and construction method thereof |
| CN107119699A (en) * | 2017-06-01 | 2017-09-01 | 三峡大学 | A kind of friction pile and its construction method based on the beam of uniform strength |
| CN108532397A (en) * | 2018-06-19 | 2018-09-14 | 云南建投中航建设有限公司 | It is a kind of that the method for roadbed and combined friction pile are consolidated using combined friction pile |
| CN109339078A (en) * | 2018-12-05 | 2019-02-15 | 昆明理工大学 | A kind of rectangular pile is inscribed in the Combined Anti-sliding stake of round stake |
| CN115162377A (en) * | 2022-07-28 | 2022-10-11 | 四川公路桥梁建设集团有限公司 | Variable-section combined slide-resistant pile with upper part and lower part being circular and construction method thereof |
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Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |