Study on Rock Bolt Reinforcement for a Gravity Dam Foundation

被引：16

作者：

Chen, S. H. ^{[1
,2
]}

Yang, Z. M. ^{[3
]}

Wang, W. M. ^{[1
]}

Shahrour, I. ^{[1
,2
]}

机构：

[1] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China

[2] Lille Univ Sci & Technol, Lab Genie Civil & Geoenvironm LGCgE, F-59656 Villeneuve Dascq, France

[3] Hunan Prov Hydropower Design Inst, Changsha 410007, Hunan, Peoples R China

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 2012年 / 45卷 / 01期

基金：

美国国家科学基金会;

关键词：

Gravity dam; Rock foundation; Stability; Bolt reinforcement; FINITE-ELEMENT-ANALYSIS; JOINTED ROCK; MASSES; MODEL;

D O I：

10.1007/s00603-011-0179-9

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In this article, the rock bolt reinforcement mechanism is discussed, and the gravity method as well as the finite element method for the bolted rock is presented. These methods are applied to study the gravity dam foundation of the Xiaoxi Hydropower Project, which is influenced by the presence of a large fault with a cracked zone over 180 m wide. Rock bolt reinforcement was used to improve the stability of the dam foundation, and the reinforcement parameters were determined from a semi-empirical equation controlled by in situ test. The stability analysis was conducted using the above methods, and the improvement in terms of deformation and stress as well as stability of the dam foundation due to the reinforcement is assessed. Rock bolt reinforcement was completed successfully, and the dam started normal operations in January 2008.

引用

页码：75 / 87

页数：13

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