摘要
运用岩石破裂过程分析系统RFPA2D模拟了岩石在变形破裂过程中围压对岩石变形、强度及声发射特性的影响。研究结果表明:数值试验结果与实验室观察得到的岩石变形、强度(弹性模量、抗压强度等)以及岩石破裂过程声发射的围压效应相吻合;同时,数值试验对在实验室中难以准确监测的声发射现象也进行了准确的模拟,所得结果对于地震预报、岩爆等冲击地压的预测具有一定的指导意义。
Using rock failure process analysis(RFPA^(2D)) code, the confining pressure effects of deformation, strength and AE of model rock specimens during failure process are studied. The numerically obtained results duplicate the deformation, strength (such as Young's modulus, compressive strength, etc) and AE characteristics observed in laboratory. Meanwhile, the characteristics of AE of rock specimens under various pressures, which is difficult to be monitored in laboratory, is also well simulated and the numerically testing results are instructive and indicative for investigating and predicting the induced seismicity and rock bursts.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第5期840-844,共5页
Journal of Central South University:Science and Technology
基金
国家自然科学基金重点项目(50134040
50174013
50374020)
关键词
RFPA系统
围压效应
变形强度
声发射
数值试验
RFPA code
confining pressure effect
deformation and strength
acoustic emission
numerical tests
