丹江口水库岩石物理力学性能试验研究
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摘要
通过丹江口水库库区代表岩样物理力学性能试验研究,得到岩样基本物理参数及其在干燥状态、自然状态和饱和状态下的单轴抗压强度、弹性系数和岩石软化系数。试验结果表明,岩石抗压强度随弹性模量的增加而增加,岩石弹性模量与孔隙率具有一定的关系,岩石吸水后强度弱化程度与孔隙率和岩石矿物成分密切相关,并且建立了岩石单轴抗压强度与弹性模量,孔隙率与弹性模量之间关系式。岩样的最终破坏形式可归纳为6种。研究成果可为丹江口水库诱发地震评价研究提供基础数据和参考。
By the experimental study on the physical and mechanical properties of typical rock in Danjiangkou reservoir area,many data was achieved,respectively including rock basic physical parameters,uniaxial compressive strength and elastic coefficient in three different status(dry status,natural status and saturate status),as well as rock softening coefficient.Experimental study shows that rock compressive strength rises with the increase of elasitic modulus,and that the elastic modulus of rock is related to its porosity,and that rock softening coefficient has close relation with porosity and rock mineral.The equations,including between elastic modulus and uniaxial compressive strength and between elastic modulus and porosity,are acquired.The failure can be sorted into 6 forms.The experimental results can provide basic data for the study on the evaluation of reservoir induced-seismicity in Danjiangkou reservoir area.
By the experimental study on the physical and mechanical properties of typical rock in Danjiangkou reservoir area,many data was achieved,respectively including rock basic physical parameters,uniaxial compressive strength and elastic coefficient in three different status(dry status,natural status and saturate status),as well as rock softening coefficient.Experimental study shows that rock compressive strength rises with the increase of elasitic modulus,and that the elastic modulus of rock is related to its porosity,and that rock softening coefficient has close relation with porosity and rock mineral.The equations,including between elastic modulus and uniaxial compressive strength and between elastic modulus and porosity,are acquired.The failure can be sorted into 6 forms.The experimental results can provide basic data for the study on the evaluation of reservoir induced-seismicity in Danjiangkou reservoir area.
引文
[1]易立新,车用太,王广才.水库诱发地震研究的历史、现状和发展趋势[J].华南地震,2003,23(1):28-37.
[2]刘素梅,徐礼华.丹江口水库水压应力场的有限元模拟[J].水利学报,2005,36(7):863-869.
[3]刘素梅,徐礼华.丹江口水库区构造应力场的数值模拟[J].岩石力学与工程学报,2004,23(23):4 017-4 021.
[4]严尊国,薛军蓉,耿爱玲.丹江口水库及邻区地震震源参数的研究[J].华南地震,1994,14(3):24-32.
[5]徐礼华,刘素梅.丹江口水库二期工程诱发地震强度预测[J].武汉理工大学学报,2005,27(1):58-61.
[6]杨清源,陈晓莉,陈献程.水库诱发地震的最大震级及其发震时间的预测研究[J].地震学报,2001,23(5):523-539.
[7]杨清源,陈献程,胡毓良,等.用灰色聚类法预测长江三峡工程水库诱发地震的最大震级[J].华南地震,1996,16(2):75-79.
[8]许强,黄润秋.用神经网络理论预测水库诱发地震[J].中国地质灾害与防治学报,1996,(3):10-17.
[9]DY-94,中华人民共和国地质矿产部岩石物理力学性质试验规程[S].
[10]国际岩石力学学会实验室和现场试验标准委员会.岩石力学试验建议方法[M].北京:煤炭工业出版社,1982.
[2]刘素梅,徐礼华.丹江口水库水压应力场的有限元模拟[J].水利学报,2005,36(7):863-869.
[3]刘素梅,徐礼华.丹江口水库区构造应力场的数值模拟[J].岩石力学与工程学报,2004,23(23):4 017-4 021.
[4]严尊国,薛军蓉,耿爱玲.丹江口水库及邻区地震震源参数的研究[J].华南地震,1994,14(3):24-32.
[5]徐礼华,刘素梅.丹江口水库二期工程诱发地震强度预测[J].武汉理工大学学报,2005,27(1):58-61.
[6]杨清源,陈晓莉,陈献程.水库诱发地震的最大震级及其发震时间的预测研究[J].地震学报,2001,23(5):523-539.
[7]杨清源,陈献程,胡毓良,等.用灰色聚类法预测长江三峡工程水库诱发地震的最大震级[J].华南地震,1996,16(2):75-79.
[8]许强,黄润秋.用神经网络理论预测水库诱发地震[J].中国地质灾害与防治学报,1996,(3):10-17.
[9]DY-94,中华人民共和国地质矿产部岩石物理力学性质试验规程[S].
[10]国际岩石力学学会实验室和现场试验标准委员会.岩石力学试验建议方法[M].北京:煤炭工业出版社,1982.
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