Abstract：Research purposes: The hydro － geological survey and the ground stress testing are very important for the deep bore drilling for the railway tunnel and its success or failure and its accuracy are crucial to improving the testing efficiency and data reliability．
Research conclusions:In the works of the deep bore hydro － geological survey and the ground stress testing for railway tunnel，there are following three sectors to determine the whether the tests accuracy can be enhanced and whether the tests succeed or not: (1) Selection of the testing section: Dividing the test section that meets the test requirement is the prerequisite for the successful test．(2) Determination of water stop position on the top and bottom ends: The effect of the water stop is crucial to the success of the test．(3) Determination of the thickness of the test section: Determination of the calculation thickness of the hydro － geologic test plays a decisive role in accuracy of the test data．
China Railway Siyuan Survey and Design Group Co． Ltd． Fujian Xiang － Pu Railway Bao － Taishan Tunnel Stress Test Research Report ［R］． Wuhan: China Railway Siyuan Survey And Design Group Co． Ltd， 2009．
Du Yanjun． Application of the Comprehensive Logging Technology in Engineering Investigation of Mountain Taihang Tunnel［J］． Journal of Railway Engineering Society，2006(5) : 77－81．
Shen Jianping， He Hongsheng． Well Logging Technology in Tunnel Deep － hole Prospecting in Limestone Areas of the Application of ［J］．Coal Geology of China，2004(3) : 57－60．
2013, Vol. 30 
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