Influence of Anchor Bolts on Mechanical Parameters under Unloading Conditions

WANG Xing-xia; LI Jian-lin

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Influence of Anchor Bolts on Mechanical Parameters under Unloading Conditions

更新时间：2026-06-25

- Influence of Anchor Bolts on Mechanical Parameters under Unloading Conditions
- Vol. 27, Issue S2, (2006)
- 作者机构：
  
  1. 武汉大学水利水电学院,武汉,430072
  2. 三峡大学土木水电学院,宜昌,443002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU45
- Online First：16 December 2006，
  
  Published：2006
- 稿件说明：
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WANG Xing-xia, LI Jian-lin. Influence of Anchor Bolts on Mechanical Parameters under Unloading Conditions[J]. 2006, 27(S2).
DOI：

WANG Xing-xia, LI Jian-lin. Influence of Anchor Bolts on Mechanical Parameters under Unloading Conditions[J]. 2006, 27(S2). DOI：

摘要

岩体在加载和卸荷条件下，其力学性质有本质的区别。采用数值模拟方法，以ADINA软件为计算平台，研究了卸荷条件下

锚固密度、锚杆长度和岩体性质3个因素对节理岩体力学参数的影响。采用等效变形参数的方法计算节理岩体和锚固体的等效变形模量和泊松比。在分析数值计算结果的基础上，分析了加锚后等效变形模量En与锚固密度N和锚杆长度L之间的关系。

Abstract

The mechanical properties of a jointed rockmass under loading conditions are essentially different from those under unloading conditions. The paper makes studies on how bolt consistency

bolt length and rock characteristics to affect the mechanical parameters of a bolt-supported rockmass under unloading conditions. Numerical simulation method and ADINA software are employed. In addition

equivalent deformation parameter method is used to calculate the equivalent deformation modulus and Poisson’s ratio of a jointed rockmass and bolt-supported rockmass. Based on that

the paper analyzes the relation between the equivalent deformation modulus En of bolt-supported rock mass and bolt consistency N

and the relation between En and bolt length L.

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Related Institution

武汉大学水电学院

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Faculty of Engineering, China University of Geosciences

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