Research on Energy Consumption Characteristics and Energy Density Per Unit Time of Rock Crushing by Impact Load

摘要：

　　The HSPB impact test was used to simulate the fragmentation process of rock blasting.Granite,phyllite and magnetite quartzite were selected to be tested by changing the impact velocity.By analyzing the input waves,reflect waves,transmit waves,and the crushing size features of samples,the stress-strain relationships,stresses and strains rates time related features were discussed,and the relation models between coefficient of energy utilization and the degree of crushing,as well as the models between the coefficient and input energy were set up.Based on this,the new concept and expression of energy density per unit time were put forward which can effectively describe the energy output structures and explored a new way to research on explosives and rocks coupling.

关键词： impact load test rock fragmentation coefficient of energy utilization energy density per unit time

作者: GUO Lianjun SHAO Anlin ZHANG Daning MA Xufeng YANG Yuehui ZHANG Guojian SUN Houguang

作者单位: University of Science and Technology Liaoning,Anshan,Liaoning,China Anstell Minging,Anshan,Liaoning,China

会议类型: 国际会议

会议名称: The 4th Asian-Pacific Symposium on Blasting Techniques(第四届亚洲太平洋地区爆破技术研讨会)

会议地点: 深圳

会议语种:英文

页码: 87-92

在线出版日期: 2014-11-01（万方平台首次上网日期，不代表论文的发表时间）