(1. Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;2. The Third Railway Survey and Design Institute Group Corporation,Tianjin 300142,China)
Abstract:Due to existence of various unfavorable geological bodies,assessment results of rock mass quality are often varied at different stages of construction,and induce some arguments. In order to assist in rock engineering aims,the engineering geological rock grouping is necessary to carry out on analyses of lithology and physi- mechanical features,for differentiation of main components of engineering geological zonation and evaluation. The widely applied rock mass quality classification is useful in rock engineering design and construction for surrounding rock stability purpose. The former comes from the viewpoint of rock mass structural control and takes account of rock mass types from a large range,while the latter adopting single or multiple parameters for assessment rock mass quality,including rock mass itself and surrounding environment. At different stages and layers,the two methods play distinctive roles,as for large scale geological forecast and engineering design,respectively,but with somewhat joints and overlays. The obvious differences of rock mass quality indices obtained at various stages of construction,can be clarified and interpreted from views of engineering geological rock group,with respect to unfavorable geological bodies. Taking the Yanmenguan Tunnel as one case example,their roles and application process are presented and discussed. The different advantages of the two systems and obtained results could be used in other rock engineering projects.
尚彦军1,陈明星2,王开洋1,孙元春2,杨树俊2,李 坤1. 工程地质岩组与岩体质量分级在岩石工程中应用对比[J]. 岩石力学与工程学报, 2013, 32(s2): 3205-3214.
SHANG Yanjun1,CHEN Mingxing2,WANG Kaiyang1,SUN Yuanchun2,YANG Shujun2,LI Kun1. APPLICATION COMPARISON OF ENGINEERING GEOLOGICAL ROCK GROUP AND ROCK MASS CLASSIFICATION IN ROCK ENGINEERING. , 2013, 32(s2): 3205-3214.
王思敬. 论岩石的地质本质性及其岩石力学演绎[J]. 岩石力学与工程学报,2009,28(3):433-450.(WANG Sijing. Geological nature of rock and its deduction for rock mechanics[J]. Chinese Journal of Rock Mechanics and Engineering,2009,28(3):433-450.(in Chinese))
[3]
BIENIAWSKI Z T. Geomechanics classification of rockmasses and its application in tunneling[C]// Proceedings of the 3rd International Congress on Rock Mechanics (ISRM). Denver:[s. n.],1974:27-32.
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