Comparison Study of Rock Bursts of Deep Buried Tunnels in the Shear and Compression Tectonic Environments
详细信息
- 责任者：Guo Changbao (Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Zhang Yongshuang
- 刊名：Acta Geologica Sinica
- 出版年：2011
- 卷期：85(1)
- 关键词：隧道 ; tunnels ; 岩爆 ; rock bursts
- 页码：p.66-77
- 图表：15 illus., 5 tables, 21 refs.
- 分类号：1702
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
The geologic tectonic stress field is an important factor that affects the rock bursts. Based on field geological investigation, the actual crustal stress analysis, the laboratory rock mechanics test analysis, and with the example of the deep buried Gaoligong Mt. tunnel, the paper make deeply analysis and research on the deep buried tunnel’s rock burst characteristic between the extrusion and shear tectonic environment in the complex geologic tectonic stress field. The research indicated that the rock burst has some intensity with the position between the tunnel and the geologic structure body, when the tunnel axis and the axial line of the fold are parallel, and tunnel located at anticlinal shaft and fold limb department, the rock burst possibility is to be the biggest.