A method for calculating ultimate pullout force of recoverable under-reamed prestressed anchor cable

被引：0
|
作者：
Wang Zhe [1 ]
Wang Qiao-kan [1 ]
Ma Shao-jun [2 ]
Xue Yi [3 ]
Xu Si-fa [1 ]
机构：
[1] Zhejiang Univ Technol, Coll Civil Engn & Architecture, Hangzhou 310014, Zhejiang, Peoples R China
[2] Zhejiang Prov Inst Architectural Design & Res, Hangzhou 310006, Zhejiang, Peoples R China
[3] Zhejiang Poly Real Estate Dev Co Ltd, Hangzhou 310016, Zhejiang, Peoples R China
来源：
ROCK AND SOIL MECHANICS | 2018年 / 39卷
关键词：
anchor cable; under-reamed; recoverable; ultimate pullout force;
D O I：
10.16285/j.rsm.2018.1242
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Based on the limit equilibrium theory, a new formula is proposed to calculate the ultimate pullout force of anchor cable. The influence of soil pressure on distal of the bonding segment is considered in the formula. Prestressed anchor cables in three practical engineering cases are investigated. The values of ultimate pullout force calculated by the formula proposed are compared with those by the existing formula and measured values, respectively. The results show that distal soil pressure of the bonding segment in cohesive soil has evident influences on ultimate pullout force of anchor cable. Also it is shown that the ultimate pullout force can be calculated by both the formula of this paper and the existing formula when anchor cable used in sandy soil; but it should use the formula of this paper when anchor used in cohesive soil.
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收藏
页码：202 / 208
页数：7
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