岩石脆性临界破坏视电阻率变化与应力比
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
针对岩体破坏过程中电阻率变化问题,分析了岩石受载变形破坏过程中电阻率的演化规律,利用重整化群理论并结合岩石压缩破坏试验,研究分析岩石电阻率变化与岩石变形破坏演化阶段之间的关系,在此基础上推导出了受载条件下岩石破裂前电阻率突变所对应的应力和岩石峰值应力比值的表达式,实验室加载情况下其值大都在70%~80%,同时根据相关实验数据应力比均值约为75%,误差在±9%之内,验证了分析的合理性。
Aiming at the changing of apparent resistivity in rock failure process,the resistivity variation was analyzed.Analyzing the relationship of resistivity and rock compression process under loading based on renormalization group theory,the micro-mechanism of resistivity evolution can be described as follow:the expanding and interaction of microcracks lead the changing.Combining rock uniaxial compression results,it is shown that the stress ratio between the resistivity mutation of critical state and peaking state has a value range from 70% to 80%.According to the test data,it can be got that the stress ratio between critical points,has a value of nearly to 75%,and the deviation is less than ±9%.
引文
[1]安金珍,周平根,马麦宁,等.用地电阻率探测和监测滑坡体实验[J].地震学报,2008,30(3):254-261.An Jinzhen,Zhou Pinggen,Ma Maining,et al.Experiments on explo-ring and monitoring landslip-mass using geoelectric resistivity obser-vations[J].Acta Seismologica Sinica,2008,30(3):254-261.
    [2]Brace W F.The effect size on mechanics properties of rocks[J].Ge-ophysical Research Letters,1981,8(7):651-662.
    [3]Brace W F.Distatancy-related electrical resistivity changes in rocks[J].Pageoph.,1975,86(12):207-217.
    [4]陈大元,陈峰,贺国玉.岩石受压过程中“应力反复”对电阻率的影响[J].地震学报,1987,9(3):303-311.Chen Dayuan,Chen Feng,He Guoyu.Influences of“stress reversal”on rock resistivity during loading procedure[J].Acta SeismologicaSinica,1987,9(3):303-311.
    [5]陈大元,许东俊,陆阳泉,等.岩石变形特征及物理特性的现场试验研究[J].地震学报,1992,14(3):356-362.Chen Dayuan,Xu Dongjun,Lu Yangquan,et al.Experimental re-search on chance of georesistivity anisotropy of pressed rocks and onthe spot observation[J].Acta Seismologica Sinica,1992,14(3):356-362.
    [6]毛桐恩,陈大元,刘新美,等.承载岩石地电阻率各向异性变化实验研究与现场观测结果[J].地震,1998,18(S):33-38.Mao Tongen,Chen Dayuan,Liu Xinmei,et al.Experimental researchon chance of georesistivity anisotropy of pressed rocks and on thespot observation[J].Earthquake,1998,18(S):33-38.
    [7]毛桐恩,胥广银,范思源,等.地电阻率各向异性度的动态演化图象与地震孕育过程[J].地震学报,1999,21(2):180-186.Mao Tongen,Xu Guangyin,Fan Siyuan,et al.Experimental researchon chance of georesistivity anisotropy of pressed rocks and on thespot observation[J].Acta Seismologica Sinica,1999,21(2):180-186.
    [8]陈峰,修济刚,安金珍,等.岩石电阻率变化各向异性与微裂隙扩张方位实验研究[J].地震学报,2000,22(3):310-318.Chen Feng,Xiu Jigang,An Jinzhen,et al.Research on dependenceof resistivity changing anisotropy on microcracks extending in rockwith experment[J].Acta Seismologica Sinica,2000,22(3):310-318.
    [9]陈峰,安金珍,廖椿庭.原始电阻率各向异性岩石电阻率变化的方向性[J].地球物理学报,2003,46(2):271-280.Chen Feng,An Jinzhen,Liao Chunting.Directional characteristic ofresistivity changes in rock of original resistivity anisotropy[J].Chi-nese Journal of Geophysics,2003,46(2):271-280.
    [10]安金珍,修济刚,陈峰,等单轴压力下有补给水岩石电阻率变化各向异性研究[J].中国地震,1996,12(3):300-306.An Jinzhen,Xiu Jigang,Chen Feng,et al.Anisotropy studies of rockresistivity changes under uniaxial pressure and water replenishment[J].Earthquake Research in China,1996,12(3):300-306.
    [11]刘文忠,施行觉,徐果明.饱油、饱水岩石电阻率的测试和研究[J].地球物理学报,1995,38(S1):316-322.Liu Wenzhong,Shi Xingjue,Xu Guoming.Study on measurement onresistively of oil or water saturated rocks[J].Acta Geophysica Sini-ca,1995,38(S1):316-322.
    [12]修济刚,陈大元.单轴压力下饱和度对岩石视电阻率影响试验[J].地震,1987,7(2):38-45.Xiu Jigang,Chen Dayuan.Test of the saturation effect on rock ap-parent resistivity under uniaxial pressure[J].Earthquake,1987,7(2):38-45.
    [13]张流,黄建国,高平.水对岩石变形过程中电阻率变化的影响[J].地震,2003,23(1):140-148.Zhang Liu,Huang Jianguo,Gao Ping.Influence of water on electricresistivity of deforming rock samples[J].Earthquke,2003,23(1):140-148.
    [14]陈有发,董永德,康云生,等.岩性对电阻率前兆的影响[J].西北地震学报,1982,4(4):89-95.Chen Youfa,Dong Yongde,Kang Yunsheng,et al.Influences ofrock mechanical properties on precursor of apparent electrical resis-tivity[J].Northwest Seismological Journal,1982,4(4):89-95.
    [15]李德春,葛宝堂,舒继森.岩体破坏过程中的电阻率变化试验[J].中国矿业大学学报,1999,28(5):491-493.Li Dechun,Ge Baotang,Shu Jisen.Experiment of resistivity varia-tion of rocks in failure process[J].Journal of China University ofMining&Technology,1999,28(5):491-493.
    [16]葛宝堂,李德春.岩体电阻率观测技术预报顶板失稳的前景[J].中国矿业大学学报,1993,22(2):48-52.Ge Baotang,Li Dechun.The prospects for the technique of detec-ting rock resistivity applied in prediction of roof failed in stability[J].Journal of China University of Mining&Technology,1993,22(2):48-52.
    [17]邹德蕴,武超,张绪言,等.应用岩体电阻率预测岩体失稳的可行性研究[J].煤田地质与勘探,2003,31(1):51-53.Zou Deyun,Wu Chao,Zhang Xuyan,et al.Feasibility stduy of theprediction for rock mass destabilization by applying rock mass resis-tivity[J].Coal Geology&Exploration,2003,31(1):51-53.
    [18]刘盛东,吴荣新,张平松,等.三维并行电法勘探技术与矿井水害探查[J].煤炭学报,2009,34(7):927-932.Liu Shengdong,Wu Rongxin,Zhang Pingsong,et al.Three dimen-sional parallel electric surveying and its applications in water disas-ter exploration in coal-mines[J].Journal of China Coal Society,2009,34(7):927-932.
    [19]程久龙,于师建.覆岩变形破坏电阻率响应特征的模拟实验研究[J].地球物理学报,2000,43(5):699-706.Cheng Jiulong,Yu Shijian.Simulation experiment on the responseof resistivity to deformation and failure of overburden[J].ChineseJournal of Geophysics,2000,43(5):699-706.
    [20]刘树才.煤矿底板突水机理及破坏裂隙带演化动态探测技术[D].徐州:中国矿业大学,2008.
    [21]Bieniawski Z T.Time-dependent behaviour of fractured rock[J].Rock Mechanics and Rock Engineering,1970,2(3):123-127.
    [22]秦四清,徐锡伟,胡平,等.孕震断层的多锁固段脆性破裂机制与地震预测新方法的探索[J].地球物理学报,2010,53(4):1001-1014.Qin Siqing,Xu Xiwei,Hu Ping,et al.Brittle failure mechanism ofmultiple locked patches in a seismogenic fault system and explora-tion on a new way foe earthquake prediction[J].Chinese Journal ofGeophysics,2010,53(4):1001-1014.
    [23]秦四清,王媛媛,马平.崩滑灾害临界位移演化的指数律[J].岩石力学与工程学报,2010,29(15):873-880.Qin Siqing,Wang Yuanyuan,Ma Ping.Expoential laws of criticaldisplacement evolution for landslides and avalanches[J].ChineseJournal of Rock Mechanics and Engineering,2010,29(15):873-880.
    [24]Hudson J A,Fairhurst C.Tensile strength,Weibull’s theory and ageneral statistical approach to rock failure[A].The Proceedings ofthe Southampton 1969 Civil Engineering Materials Conference[C].1969:901-914.
    [25]唐春安,乔河,徐小荷,等.矿柱破坏过程及其声发射规律的数值模拟[J].煤炭学报,1999,24(3):266-269.Tang Chun’an,Qiao He,Xu Xiaohe,et al.Numerical simulation onpillar failure and associated acoustic emissions[J].Journal of Chi-na Coal Society,1999,24(3):266-269.
    [26]陈忠辉,谭国焕,杨文柱.岩石脆性破裂的重正化研究及数值模拟[J].岩土工程学报,2002,24(2):183-187.Chen Zhonghui,Tan Guohuan,Yang Wenzhu.Renormalizationstudy and numerical simulation on brittle failure of rocks[J].Chi-nese Journal of Geotechnical Engineering,2002,24(2):183-187.
    [27]Allegre C J,Mouel J L Le,Provost A.Scaling rules in rock fractureand possible implications for earthquake prediction[J].Nature,1982,297:47-49.
    [28]Smalley R F,Turcotte D L,Solla S A.A renormalization group ap-proach to the stick slip behavior of faults[J].J.Geophys.Res.,1985,90:1894-1900.
    [29]Wilson K G.Problems in physics with many scales of length[J].Sci.Am.,1979,241:158-179.
    [30]薛雷.岩石破裂逾渗临界状态重正化群研究及应用[D].北京:中国科学院地质与地球物理研究所,2011.
    [31]吕广廷,赵广堃,谢原定,等.应力作用下层状砂岩电阻率的变化特征[J].西北地震学报,1987,6(1):11-16.LüGuangting,Zhao Guangkun,Xie Yuanding,et al.The property ofelectric resistivity change of layer sandstone rock under stress[J].Northwestern Seismological Journal,1987,6(1):11-16.
    [32]陆阳泉,钱家栋,赵家骝,等.岩石失稳破裂前激发激化效应的初步研究[J].地震,1992,12(4):28-36.Lu Yangquan,Qian Jiadong,Zhao Jialiu,et al.Preliminary researchon induced polarization effect before rupture of instable rocks[J].Earthquake,1992,12(4):28-36.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心