Interface mechanics of soil-metro tunnel on ground fissures
Ground fissures that are typical geo-hazards in Xian area may cause damage of various types of buildings, transportation facilities, city lifeline projects and resources, especially endangering the construction and running of Xian Subway. During ground fissures activity, mechanical characteristics of interface between stratum on fissure zones and metro tunnel are more complicated than that of normal foundations. Ground fissures in Xian area were introduced firstly, and models of land deformations and section destroy were found around Xian subway. Secondly, based on the interface mechanics, mechanical characteristics of interface between stratum on fissure and metro tunnel are studied, and void underneath of metro tunnel are were analysed emphatically. At last, the result of numerical simulation shows that distribution law and amount of frictional force, scale and location of void underneath, influence deformation and stress of tunnel; and then it also provides a theory basis for effective forecast evolution process of void underneath.
Kailing Li Puqi Zhao
college of Geology Engineering and geomatics,Changan University,Xian,Shannxi,China China Railway First Group Co.,Ltd,Xian,Shannxi,China
国际会议
International Symposium and The 7th Asian Regional Conference of IAEG(国际工程地质与环境协会年会暨第七届亚洲工程地质会议)
成都
英文
667-672
2009-09-09（万方平台首次上网日期，不代表论文的发表时间）