Experimental test of cyclic loading of sand

摘要：

　　Via the cyclic loading of sand, this paper analyzed the stress-strain curves of sand in cyclic loading conditions.Experimental results show that the sand with particle size and different thickness presents a close relationship between mathematics of damage extension in cyclic loading experiment.And there is an exponential function model between axial strain and cycle times through table curve, at the same time;a mathematical model has been conducted.Additionally, the resulting curve has the same amount of volume.Furthermore, a mathematical model with curve fitting between the offset, which support mine sandbox type temporary in the theory.

关键词： cyclic loading-unloading sandbox-style temporary support mechanical model

作者: LI Yong-jun FU Zhi-liang SUN Yi WANG Qiang

作者单位: Anhui University of Science and Technology, Huainan 232001, China

会议类型: 国际会议

会议名称: International Mining Conference 2014(2014国际采矿论坛)

会议地点: 安徽淮南

会议语种:英文

页码: 576-580

在线出版日期: 2014-09-19（万方平台首次上网日期，不代表论文的发表时间）