A Study of the Mechanical Property of Schist Based on Microscopic Tests
(1 The State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059; 2 Chengdu Institute of Survey and Investigation, Chengdu 610081; 3 Hydrochina Huadong Engineering Corporation, Hangzhou 310014)
Abstract：
Generally, the macroscopic properties of a rock are reflected well in its micro-characteristics, so further research of microscopic properties is significant to the understanding of macroscopic properties and their practical applications in engineering. Using a lamellar casting test and a scanning electron microscope test, as well as the results of a point-loading test and a conventional mechanical test, the mineral composition and microstructure of surrounding rocks in the exploration adit of a hydropower station in southwest China was experimentally studied. The correlation between the micro-character and macro-mechanical properties of the rock was analyzed and the effects of the rock's micro-characteristics on the stability of the surrounding rock was stated from a microscopic view to establish the theoretical and technical basis for the design and construction of the tunnel support.
WANG Jia-Xing-1,
2 ,
SHI Yu-Chuan-1 etc
.A Study of the Mechanical Property of Schist Based on Microscopic Tests[J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(3): 73-78
2014, Vol. 51 