Experimental study of load distribution of anchoring section for rock bolts

被引：0

作者：

Zhang, You-Zhen ^{[1
]}

Shi, Zhi-Jun ^{[1
]}

Zhang, Jing ^{[1
]}

机构：

[1] Xi'an Branch, China Coal Research Institute, Xi'an 710077, China

来源：

Yantu Lixue/Rock and Soil Mechanics | 2010年 / 31卷 / SUPPL. 2期

关键词：

Anchoring technology - Critical failures - Gauss function - Load distributions - Measuring points - Power functions - Tension tests;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The load distribution of anchoring section for rock bolt is one of the key problems in rock-soil anchoring technology. Firstly, the strain of measuring points in the body produced in tension test is acquired. Then the data is fitted into curve with composite power function and Gauss function. Finally the axial and shear stress distribution of anchoring section under critical failure state is obtained. The experiment results show that the shear stress is distributed in the front part of bolts; the axial stress distribution is better described by Gauss function for anchoring section under critical failure state; and the damage emerges in the plane where shear strength is much larger than bond strength. The study results provide a theoretical basis for the design of bolt in rock-soil anchoring.

引用

页码：184 / 188