• 责任者：Ju Nengpan (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhao Jianjun
• 刊名：Journal of Chengdu University of Technology
• 出版年：2010
• 卷期：37(2)
• 关键词：结构面 ; structural planes ; 地下洞室 ; underground space ; 围岩稳定 ; adjoining rock stability
• 页码：p.188-194
• 图表：11 illus., 2 tables, 12 refs.
• 分类号：1702
• issnNo：ISSN1671-9727
• isbnNo：CN51-1634/N

Taking the underground caverns of the Nuozhadu hydroelectric station in Yunnan as an example, this paper studies the impact of control discontinuities on underground caverns. Based on the analysis of geological conditions and rock mass structures, the paper also studies the control of Grade I discontinuities over caverns layout and the impact of Grade I-2 discontinuities on the stress and deformation of wall rocks by 3D-FLAC. The results indicate that the stress in wall rocks is affected by low-angle faults whose strike lines intersect with cavern axial line by a small angle, and the deformation of wall rocks is affected by the medium dip angle discontinuities.