标题：Experimental Study on Creep Characteristics of Coal Under Uniaxial Compression
作者：Yang, Yongjie; Guo, Mingfu; Chen, Dongwei
作者机构：[Yang, Yongjie; Guo, Mingfu] Shandong Univ Sci & Technol, Qingdao 266590, Shandong, Peoples R China.; [Chen, Dongwei] Liyan Min Co Shandong Lineng G 更多
会议名称：Global Conference on Civil, Structural and Environmental Engineering / 3rd International Symp on Multi-field Coupling Theory of Rock and Soil Media and its Applications
会议日期：OCT 20-21, 2012
来源：ADVANCES IN INDUSTRIAL AND CIVIL ENGINEERING, PTS 1-4
关键词：Coal; Creep; Stress threshold value; Constitutive characteristics;; Fitting
摘要：Generally surrounding rocks of deep mine show the typical creep characteristics and the multi stage loading creep test of coal was carried out by MTS815 rock mechanical test system in this paper. Compared to the creep coefficient of other rocks, creep coefficient of coal is relatively small. Coal creep failure changes obviously when load level is higher than the threshold stress. The constitutive characteristics of creep failure of coal can be fitted preferably by the Cubic Polynomial.