Abstract：Research purposes:In actual work, according to the ground stress data for assessment, most railway tunnels are under very high ground stress and high ground stress state, which causes adjustment of surrounding rock and engineering measures to strengthen, thus these will cause large increased investment, even cause large dispute and chaos in analysis causes of tunnel lining cracking and deformation, but the engineering case that rock burst and large deformation occurred in actual excavation of tunnel is very rare. In this paper, according to rock mass mechanical theory, the ground stress information and engineering case, combined the relevant provisions of similar industry, the assessment of initial stress fields of rock mass in railway specification is discussed.Research conclusions:(1) The assessment of railway specification to initial ground stress field is not realistic and should be revised, preliminary judgment when the measured in-situ stress >30 MPa, the possibility of rockburst is increased. (2) Assessment conclusion of initial ground stress field should be discreet, the increased investment should be incorporated into the dynamic design. (3) The stress tests of survey design stage should be reasonable and appropriate. (4) The research results can be applied to the modification of railway norms and tunnel exploration.
韩康，付开隆，周树齐. 铁路岩体初始应力场评估的探讨[J]. 铁道工程, 2014, 31(9): 17-20.
HAN Kang, FU Kai-long, ZHOU Shu-qi. Discussion on the Assessment of Initial Stress Field of Railway Rock Mass. 铁道工程, 2014, 31(9): 17-20.
[1] 刘佑荣,唐辉明. 岩体力学[M]. 武汉:中国地质大学出版社,1999. Liu Yourong,Tang Huiming. Rock Mass Mechanics[M]. Wuhan:China University of Geosciences Press, 1999. [2] 王梦恕.中国隧道及地下工程修建技术[M].北京:人民交通出版社, 2010. Wang Mengshu. Tunnel and Underground Engineering Construction Technology in China [M]. Beijing:China Communications Press,2010. [3] 张倬元,王士天,王兰生.工程地质分析原理[M]. 北京:地质出版社,1994. Zhang Zhuoyuan, Wang Shitian, Wang Lansheng. Principles of Engineering Geology Analysis[M]. Beijing:Geological Publishing House, 1994. [4] GB 50287—2006,水力发电工程地质勘查规范[S]. GB 50287—2006,Code for Hydropower Engineering Geological Investigation[S]. [5] TB 10012—2007,铁路工程地质勘察规范[S] TB 10012—2007,Code for Geology Investigation of Railway Engineering [S]. [6] 杜世回.秦岭翠华山特长隧道高地应力问题研究[J]. 铁道工程学报, 2012(2): 55-58. Du Shihui. Study on High Stress of Cuihuashan Super Long Tunnel in Qinling Mountain Area [J].Journal of Railway Engineering Society,2012(2):55-58. [7] 韩康,王科.铁路地震安全性评价与地震动参数取值的探讨[J].高速铁路技术,2014(5):9-11. Han Kang,Wang Ke. Discussion on Railway Earthquake Safety Evaluation and Earthquake Dynamic Parameter Values[J]. High Speed Railway Technology, 2014(5):9-11.
2014, Vol. 31 
版权所有 © 2014 《铁道工程学报》编辑部