摘要
南水北调工程将要开挖大量的地下工程,可是确定围岩的稳定性状态至今仍是地下工程研究的关键难题之一,即使进行了现场监测,也难以判定围岩的稳定状态。以自承载能力是决定围岩稳定性的主要因素为依据,在深入分析现场实测资料的基础上,开展了反映围岩变形特点的平面应变试验,综合建立了围岩扩容率与其自承载能力的关系模型,以期在现场监测结果与围岩稳定状态之间架起桥梁。
How to judging the stability of surrounding rock is a key problem in underground engineering. There is no effective approach yet. It is a difficult problem even in-situ inspection carried through. According to that self-bearing capacity is the key to surrounding rock stability, plain strain experiments are carried out on the analysis of in-situ measured data, and the relationship between volume expansion ratio and self-bearing capacity is presented, which is meaningful in underground engineering.
出处
《南水北调与水利科技》
CAS
CSCD
2008年第1期128-130,133,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
稳定状态
自承载能力
平面应变
扩容率
stability
self-bearing capacity
plain strain
volume expansion ratio
