| 岩石破裂过程围压效应的数值试验 |
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| 引用本文： | 徐涛,唐春安,王述红,张永彬.岩石破裂过程围压效应的数值试验[J].中南大学学报(自然科学版),2004,35(5):840-844. |
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| 作者姓名： | 徐涛 唐春安 王述红 张永彬 |
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| 作者单位： | 1. 大连大学,材料破坏力学数值试验研究中心,辽宁,大连,116622;东北大学,岩石破裂与失稳研究中心,辽宁,沈阳,110004
2. 东北大学,岩石破裂与失稳研究中心,辽宁,沈阳,110004 |
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| 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.
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| 关 键 词： | RFPA系统 围压效应 变形强度 声发射 数值试验 |
| 文章编号： | 1672-7207(2004)05-0840-05 |
| 修稿时间： | 2004年2月10日 |
Numerical Tests on Confining Pressure Effect in Rock Failure Process |
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| XU Tao.Numerical Tests on Confining Pressure Effect in Rock Failure Process[J].Journal of Central South University:Science and Technology,2004,35(5):840-844. |
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| Authors: | XU Tao |
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| Abstract: | 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. |
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| Keywords: | RFPA code confining pressure effect deformation and strength acoustic emission numerical tests |
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