深部岩石脆延特性转化判别研究
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摘要
矿山深部岩体具有由脆性向延性转化的特性,围压不同峰后特性也不同。针对深部的脆延转化机理进行了深入研究,得到同一深度岩石在不同围压的应力-应变变化规律,在此基础上确定了岩石脆-延转换的临界深度,研究结果为矿山深部开采提供了依据。
The deep rock mass has the characteristic of brittle extension transformation,and different confining pressures show different peaks. Thus,a research on the mechanism of brittle extension transformation in deep rock mass was carried out,which obtained the stress-strain changing rules of different rocks with the same depth under various confining pressures. On this basis,the critical depth of brittle extension transformation was determined,which provided reference for deep mining.
The deep rock mass has the characteristic of brittle extension transformation,and different confining pressures show different peaks. Thus,a research on the mechanism of brittle extension transformation in deep rock mass was carried out,which obtained the stress-strain changing rules of different rocks with the same depth under various confining pressures. On this basis,the critical depth of brittle extension transformation was determined,which provided reference for deep mining.
引文
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[2]沈华章,王水林,刘泉声.模拟应变软化岩石三轴试验过程曲线[J].岩土力学,2014,35(6):1647-1654.
[3]Gowd T W,Rummel F.Effect of confining pressure on the fracture behavior of a pozous rock[J].J Rock Mech Min Sci and Geomech Abstra,1980(17):225-229.
[4]林卓英,吴玉山,等.岩石在三轴压缩下脆-延性转化的研究[J].岩土力学,1992,13(2):45-53.
[5]童海方.采空区上覆岩层“三带”的界定准则和仿真确定[J].北京科技大学学报,2006,28(7):609-612.
[6]刘保卫.采场上覆岩层“三带”高度与岩性的关系[J].煤炭技术,2009,28(8):56-57.
[7]张晓君,靖洪文,郑怀昌.平面应力和平面应变条件下的岩石脆性研究[J].矿业研究与开发,2008,28(5):9-10.
[8]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813.
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[10]Mogi K.Fracture and flow of rocks under high triaxial compression[J]J.Geophys.Res.1971,76:1255-1269.
[11]满轲,周宏伟.不同赋存深度岩石的动态断裂韧性与拉伸强度研究[J].岩石力学与工程学报,2010,29(8):1657-1663.
[12]金解放,赵奎.岩石声发射测量地应力信号处理技术研究[J].江西理工大学学报,2008,29(3):l0-12.
[13]陈勉,张艳,金洐,等.加载速率对不同岩性岩石Kaiser效应影响的试验研究[J].岩石力学与工程学报,2009,28(Z1):2599-2603.
[14]邓小亮.三轴压缩下大理岩应力-应变全过程中力学特性及内时本构关系研究[D].武汉:中国科学院武汉岩土力学研究所,1991.
[15]刘玉鼎,霍丙杰,辛龙泉.深部开采环境及岩体力学行为研究[J].矿业工程,2009,7(3):14-16.
[2]沈华章,王水林,刘泉声.模拟应变软化岩石三轴试验过程曲线[J].岩土力学,2014,35(6):1647-1654.
[3]Gowd T W,Rummel F.Effect of confining pressure on the fracture behavior of a pozous rock[J].J Rock Mech Min Sci and Geomech Abstra,1980(17):225-229.
[4]林卓英,吴玉山,等.岩石在三轴压缩下脆-延性转化的研究[J].岩土力学,1992,13(2):45-53.
[5]童海方.采空区上覆岩层“三带”的界定准则和仿真确定[J].北京科技大学学报,2006,28(7):609-612.
[6]刘保卫.采场上覆岩层“三带”高度与岩性的关系[J].煤炭技术,2009,28(8):56-57.
[7]张晓君,靖洪文,郑怀昌.平面应力和平面应变条件下的岩石脆性研究[J].矿业研究与开发,2008,28(5):9-10.
[8]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813.
[9]李先炜.岩块力学性质[M].北京:煤炭工业出版社,1983:33,102.
[10]Mogi K.Fracture and flow of rocks under high triaxial compression[J]J.Geophys.Res.1971,76:1255-1269.
[11]满轲,周宏伟.不同赋存深度岩石的动态断裂韧性与拉伸强度研究[J].岩石力学与工程学报,2010,29(8):1657-1663.
[12]金解放,赵奎.岩石声发射测量地应力信号处理技术研究[J].江西理工大学学报,2008,29(3):l0-12.
[13]陈勉,张艳,金洐,等.加载速率对不同岩性岩石Kaiser效应影响的试验研究[J].岩石力学与工程学报,2009,28(Z1):2599-2603.
[14]邓小亮.三轴压缩下大理岩应力-应变全过程中力学特性及内时本构关系研究[D].武汉:中国科学院武汉岩土力学研究所,1991.
[15]刘玉鼎,霍丙杰,辛龙泉.深部开采环境及岩体力学行为研究[J].矿业工程,2009,7(3):14-16.