Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Validation of an In-Situ Stress Level Rating Method
Abstract In-situ stress is an important factor that controls the behavior of rock mass. Since 1990s, a few methods have been suggested worldwide to rate the in-situ stress level so as to facilitate underground rock engineering design. Among them, the method by Hoek et al. (1995) and Martin et al. (1999) is widely used. The method is based on the ratio of the maximum principal in-situ stress to the uniaxial compression strength of rocks. After clarifying some concepts, 25 case histories of large-scale underground excavations constructed in hard rocks in China are studied to validate the method. The results show that the rating method is effective in general to delineate high stress conditions and the rating can be improved if the dry uniaxial compression strength (UCS) of rocks is used.
Validation of an In-Situ Stress Level Rating Method
Abstract In-situ stress is an important factor that controls the behavior of rock mass. Since 1990s, a few methods have been suggested worldwide to rate the in-situ stress level so as to facilitate underground rock engineering design. Among them, the method by Hoek et al. (1995) and Martin et al. (1999) is widely used. The method is based on the ratio of the maximum principal in-situ stress to the uniaxial compression strength of rocks. After clarifying some concepts, 25 case histories of large-scale underground excavations constructed in hard rocks in China are studied to validate the method. The results show that the rating method is effective in general to delineate high stress conditions and the rating can be improved if the dry uniaxial compression strength (UCS) of rocks is used.
Validation of an In-Situ Stress Level Rating Method
Chen, Fei (Autor:in) / Deng, Jianhui (Autor:in)
01.01.2018
4 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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