摘要
利用粘弹性有限元位移反分析方法对洞室围岩粘弹性变形参数及地应力条件进行了分析，并与岩体现场变形试验及地应力测量结果进行了比较。在位移反分析计算模型中，根据洞室围岩位移观测的实际情况，分别考虑了仪器埋设断面测点的设置时间和开挖工作面推进过程中的影响。通过围岩变形观测资料，对位移反分析所涉及的某些问题进行了讨论。
Using viscoelastic FEM for displacement reverse analysis, the viscoelastic deformation parameters and the geo stresses in the surrounding rock were analysed, and compared with the results of the actual deformation test and geostress measured in situ. According to actual situation of displacement measurements during tunneling, the time of embeded instrument in the measurement section and the excavation process of the tunnel have been considered respectively in the calculation model. Finally, based on the observed deformation data of the surrounding rock, some problems involved in displacement reverse analysis were discussed.
出处
《长江科学院院报》
CSCD
北大核心
1997年第2期48-51,共4页
Journal of Changjiang River Scientific Research Institute
关键词
水利枢纽
围岩
粘弹性
变形参数
位移
Goupitan Project
surrounding rock
viscoelastic reverse analysis
deformation parameters
geo stress
