| 岩石试件刚度及压力机刚度对岩石主破裂前声发射相对平静的影响 |
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| 引用本文： | 徐东强,周昌达.岩石试件刚度及压力机刚度对岩石主破裂前声发射相对平静的影响[J].地震研究,1994,17(3):301-308. |
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| 作者姓名： | 徐东强 周昌达 |
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| 作者单位： | 唐山工程技术学院，昆明工学院，云南省地震局 |
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| 摘 要： | 本文通过对岩石试件的真三轴压缩实验，分析了岩石试件卸载刚度ＫＦ与压力机系统刚度比值对岩石破裂型式及破裂前声发射相对平静的影响，结果表明：当ＫＦ／ＫＳ＞１时，岩石试件产生突发断裂；当ＫＦ／ＫＳ＜１时，岩石试件产生缓裂，并且ＫＦ／ＫＳ的值越小，相对平静时间赵长；ＫＦ／ＫＳ的值越大，相对平静时间越短，而当ＫＦ／ＫＳ＞３时，声发射相对平静时间为零。
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| 关 键 词： | 岩石 压力机 刚复 岩石破裂试验 |
INFLUENCE OF RIGIDITY OF ROCK SAMPLE AND PRESSURE MACHINE ON RELATIVE QUIET OF ACOUSTIC EMISSION PRIOR TO MAIN RUPTURE IN ROCK |
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| Xu Dongqiang.INFLUENCE OF RIGIDITY OF ROCK SAMPLE AND PRESSURE MACHINE ON RELATIVE QUIET OF ACOUSTIC EMISSION PRIOR TO MAIN RUPTURE IN ROCK[J].Journal of Seismological Research,1994,17(3):301-308. |
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| Authors: | Xu Dongqiang |
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| Abstract: | In this paper, influence of the ratio value unloading rigity of rock sample to rigity of pressure machine system, on rock rupture pattern and relative quiet of acoustic emission prior to rupture is analysed through real-triaxial compression test on rock sample. The results show that if |KF/KS|>1, an abrupt rupture in rock sample occurs; if |KF/KS|<1, a gentle rupture in rock sample appears;The smaller|KF/KS|is, the larger relative quiet time is;conversely, it is true, and if |KF/KS|>3, relative quiet time for acoustic emission is zero. |
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| Keywords: | Rock-breaking test Rupture velocity Triaxial compression test |
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