Research of Rock Mass Stability Monitoring Based on Acoustic Emission Strength-Weakness Criterion

摘要：

Based on the testing results of acoustic emission parameters in laboratory and on site, an evaluating criterion of relative strength-weakness characteristic on the time sequence of the acoustic emission parameters of rockmass stability is presented. A new method evaluating rockmass stability on the criterion is researched. The time sequence of the acoustic emission parameters in rockmass failure process is considered in the evaluating criterion. The time sequence is divided into positive relative time sequence and negative time sequence. The evaluating criterion of relative strength-weakness characteristic is calculated based on the two time sequences. The value of the criterion is between 0 and 100 while it is dealt with in standard. So that, it can eliminate the effect of the environmental factors on geological structure or the dimensions and location of mined-out areas. The criterion applied on rockmass stability evaluation is more effective in stope stability monitoring. An example is presented in the paper. The example shows that rockmass stability is dangerous when the criterion is between 80 and 100, and that rockmass stability is safe when the criterion is between 0 and 50.

关键词： rock acoustic emission evaluating criterion of relative strength-weakness characteristic rocknmass stability monitoring

作者: LEI Jinsong WANG Ning LUO Hongge ZOU Yinsheng

作者单位: College of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyan College of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyan College of Civil Engineering,Hunan University,Changsha 410082,Hunan,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 2155-2159

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）