Application of three measurement methods for determination of in-situ stress state in Qianan area

被引：0
|
作者：
Li, Y. [1 ,2 ]
Qiao, L. [1 ,2 ]
Miao, S. J. [1 ,2 ]
Sui, Z. L. [3 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China
[2] Minist Educ, State Key Lab High Efficient Min & Safety Met Min, Beijing, Peoples R China
[3] Beijing City Univ, City Construct Dept, Beijing, Peoples R China
来源：
ROCK MECHANICS: ACHIEVEMENTS AND AMBITIONS | 2012年
关键词：
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The level and distribution of in-situ stresses are the important factors to affect the stability and failure mode of tunnel. Measurement of in-situ stresses is an essential project for the construction of pipeline engineering, tunnel engineering and slope engineering. Among the methods, hydraulic fracturing test and CSIRO overcoring gauge method are the most popular ones and recommended by ISRM. As a new and convenient way, the combining of techniques of acoustic emission and core orientation is also used for determination of in-situ stress state in Qianan area. The application of three methods for the in-situ stresses determination of Qianan area is introduced in this paper. It is about 30 sites that measurements operated in. The magnitudes and directions of in situ stress at all sites are obtained. And by analysis, the relationships between the stress distribution and geological structures are revealed.
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页码：959 / +
页数：4
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