The Responses of Jointed Rock Mass under Dynamic Loads

摘要：

　　-Joints can reflect and transmit stress waves,thus joints affect rock fracturing,and accordingly they could affect blasting efficiency.In this paper,numerical and experimental investigations have been implemented and the effect of joints on wave propagation and rock fracturing has been discussed.A dynamic numerical model of jointed rock mass has been established by using finite difference method.The simulation results show that as joints are parallel to wave propagation,the corresponding rock damage zones increase.Blasting experiments by using artificial joints have been carried out.Generally the experimental results agree with our numerical results.

关键词： artificial joint dynamic numerical simulation blasting load finite different method

作者: Zheming Zhu

作者单位: College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, 610065, China

会议类型: 国际会议

会议名称: the 2011 International Conference on Frontiers of Manufacturing Science and Measuring Technology (第一届制造科学与检测技术国际会议(ICFMM2011))

会议地点: 重庆

会议语种:英文

页码: 251-255

在线出版日期: 2011-06-23（万方平台首次上网日期，不代表论文的发表时间）