中南大学学报（自然科学版）2017，Vol.48Issue(4)：1096-1103,8.DOI:10.11817/j.issn.1672-7207.2017.04.033
水电站地下厂房洞室群施工期围岩变形特征与稳定性
Deformation characteristics and stability of surrounding rock of underground powerhouse group of hydropower station during construction
摘要
Abstract
According to the situation of strata exposed during the construction process, combined with the deformation monitoring of surrounding rock, the deformation condition was analysed. According to the detection results of rock mass during construction, the finite element model of large underground powerhouse cavern group was established. Using the deformation monitoring data, the mechanical parameters of surrounding rock of underground powerhouse cavern group was obtained by inversion analysis. Combined with the results of numerical simulation, the deformation law of surrounding rock was analyzed. The results show that the excavation of the first layer in the main powerhouse passes through the surrounding rock whose type is Ⅲ1, Ⅲ2 and Ⅳ. Deformation of surrounding rock is influenced more obviously by rock properties. In the location of auxiliary powerhouse which passes through surrounding rock of type Ⅳ, the deformation of surrounding rock is larger. The deformation of the No. 0+153.81 section of the main powerhouse is larger than the others and the monitoring measurement should be strengthened in surrounding rock of type Ⅳ in the subsequent excavation process.关键词
地下厂房洞室群/变形特征/稳定性Key words
underground caverns/deformation characteristics/stability分类
建筑与水利引用本文复制引用
王辉,陈卫忠,郑朋强,文志杰,李楠,王清标..水电站地下厂房洞室群施工期围岩变形特征与稳定性[J].中南大学学报（自然科学版）,2017,48(4):1096-1103,8.基金项目
国家自然科学基金资助项目(51409154) （51409154）
山东科技大学杰出青年科技人才支持计划项目(2015JQJH106, 2014JQJH105) （2015JQJH106, 2014JQJH105）
山东科技大学科研创新团队支持计划(2014TDJH103) （2014TDJH103）
山东省高等学校科技计划项目(J16LG03)(Project (51409154) supported by the National Natural Science Foundation of China （J16LG03）
Projects (2015JQJH106, 2014JQJH105) supported by the Research Fund of Shandong University of Science and Technology for the Outstanding Young Scientists （2015JQJH106, 2014JQJH105）
Project (2014TDJH103) supported by the Research Fund of Shandong University of Science and Technology for the Scientific Research Innovation Team （2014TDJH103）
Project (J16LG03) supported by the Higher Educational Science and Technology Program of Shandong Province) （J16LG03）
