In-situ stress measurements were made in a surveytunnel using the hollow inclusion stress gauge in order to gain knowledge of the present stress state of the Pushihe hydropower station.
为了解浦石河抽水蓄能电站枢纽区现今应力状态，采用空心包体应力计在探洞内进行了地应力测量。
2
In this paper, the main factors affecting tunnel erosion and their mechanism were studied based on field survey and data from sample analysis.
本文以野外调查和资料分析为基础，分析研究了影响洞穴侵蚀的主要因素和机理。
3
This paper is the important part of the systematical introduction about the highway tunnelsurvey design.