高放废物处置北山预选区地表岩体质量评价及其应用
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摘要
在利用测线法对地表节理调查统计的基础上,提出了基于JSR(jointing structure rating)指标的地表岩体质量评价方法.以高放废物地质处置北山预选区地表岩体为研究对象,利用JSR指标对芨芨槽、算井子和新场地段地表岩体进行节理发育程度和地表岩体质量评价.结果表明:芨芨槽地段地表岩体比算井子地段节理发育程度低,地表岩体质量等级高,从而为高放废物地质处置场址比选提供依据.同时研究了JSR指标与传统Q指标的定量关系,并修正了JSR指标的分级范围.
Based on the use of surveying method for surface joint investigation and statistics,a surface rock mass quality evaluation method based on the index-JSR was proposed. Taking the high-level radioactive waste disposal of Beishan preselected area as research object,the index-JSR was used to evaluate rock mass joint development degree and quality in the Jijicao section,Suanjingzi section and Xinchang section. The results showed that joints in the Jijicao section are less developed and the rock mass quality for Jijicao section is higher than that of Suanjingzi section. The results can provide site select basis for high-level radioactive waste geological disposal. At the same time,the quantitative relationship between JSR and Q was studied,and the scope of JSR index classification was corrected.
Based on the use of surveying method for surface joint investigation and statistics,a surface rock mass quality evaluation method based on the index-JSR was proposed. Taking the high-level radioactive waste disposal of Beishan preselected area as research object,the index-JSR was used to evaluate rock mass joint development degree and quality in the Jijicao section,Suanjingzi section and Xinchang section. The results showed that joints in the Jijicao section are less developed and the rock mass quality for Jijicao section is higher than that of Suanjingzi section. The results can provide site select basis for high-level radioactive waste geological disposal. At the same time,the quantitative relationship between JSR and Q was studied,and the scope of JSR index classification was corrected.
引文
[1]宗自华,陈亮,陈强,等.高放废物处置北山预选区地表岩体结构与岩体质量相关性及其应用研究[J].岩土力学,2013(sup1):279-284,292.(Zong Zi-hua,Chen Liang,Chen Qiang,et al.Study of relationship between rock structure and rock quality and its application to site evaluation of Beishan HLW repository[J].Rock and Soil Mechanics,2013(sup1):279-284,292.)
[2]Hagros A.Host rock classification(HRC)system for nuclear waste disposal in crystalline bedrock[D].Helsinki:University of Helsinki,2006.
[3]Mc Ewen T,Kapyaho A,Hella P,et al.Rock suitability classification RSC 2012[R].Helsinki:Posiva Oy,2012.
[4]Chen L,Wang J,Zong Z H,et al.A new rock mass classification system QHLWfor high-level radioactive waste disposal[J].Engineering Geology,2015,190:33-51.
[5]Barton N.Suggested methods for the quantitative description of discontinuities in rock masses:ISRM[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1978,15(6):319-368.
[6]Tzamos S,Sofianos A I.A correlation of four rock mass classification systems through their fabric indices[J].International Journal of Rock Mechanics and Mining Sciences,2007,44(4):477-495.
[7]魏翔,杨春和.含陡倾角软弱结构面的花岗岩力学特性及声发射特征[J].工程科学学报,2016,38(12):1667-1673.(Wei Xiang,Yang Chun-he.Experimental study of mechanics features and acoustic emission characteristics for granite of weak structure plane with steep dip angle[J].Chinese Journal of Engineering,2016,38(12):1667-1673.)
[8]Chen L,Wang C P,Liu J F,et al.Effects of temperature and stress on the time-dependent behavior of Beishan granite[J].International Journal of Rock Mechanics and Mining Sciences,2017,93(3):316-323.
[9]Zhao X G,Cai M,Wang J,et al.Strength comparison between cylindrical and prism specimens of Beishan granite under uniaxial compression[J].International Journal of Rock Mechanics and Mining Sciences,2015,76(1):10-17.
[10]雷光伟.岩体节理几何特征研究及三维网络模拟[D].重庆:重庆大学,2015.(Lei Guang-wei.Study on rock mass joints geometric feature and three-dimension network simulation[D].Chongqing:Chongqing University,2015.)
[11]Zhao X G,Wang J,Qin X H,et al.In-situ stress measurements and regional stress field assessment in the Xinjiang candidate area for China's HLW disposal[J].Engineering Geology,2015,197:42-56.
[2]Hagros A.Host rock classification(HRC)system for nuclear waste disposal in crystalline bedrock[D].Helsinki:University of Helsinki,2006.
[3]Mc Ewen T,Kapyaho A,Hella P,et al.Rock suitability classification RSC 2012[R].Helsinki:Posiva Oy,2012.
[4]Chen L,Wang J,Zong Z H,et al.A new rock mass classification system QHLWfor high-level radioactive waste disposal[J].Engineering Geology,2015,190:33-51.
[5]Barton N.Suggested methods for the quantitative description of discontinuities in rock masses:ISRM[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts,1978,15(6):319-368.
[6]Tzamos S,Sofianos A I.A correlation of four rock mass classification systems through their fabric indices[J].International Journal of Rock Mechanics and Mining Sciences,2007,44(4):477-495.
[7]魏翔,杨春和.含陡倾角软弱结构面的花岗岩力学特性及声发射特征[J].工程科学学报,2016,38(12):1667-1673.(Wei Xiang,Yang Chun-he.Experimental study of mechanics features and acoustic emission characteristics for granite of weak structure plane with steep dip angle[J].Chinese Journal of Engineering,2016,38(12):1667-1673.)
[8]Chen L,Wang C P,Liu J F,et al.Effects of temperature and stress on the time-dependent behavior of Beishan granite[J].International Journal of Rock Mechanics and Mining Sciences,2017,93(3):316-323.
[9]Zhao X G,Cai M,Wang J,et al.Strength comparison between cylindrical and prism specimens of Beishan granite under uniaxial compression[J].International Journal of Rock Mechanics and Mining Sciences,2015,76(1):10-17.
[10]雷光伟.岩体节理几何特征研究及三维网络模拟[D].重庆:重庆大学,2015.(Lei Guang-wei.Study on rock mass joints geometric feature and three-dimension network simulation[D].Chongqing:Chongqing University,2015.)
[11]Zhao X G,Wang J,Qin X H,et al.In-situ stress measurements and regional stress field assessment in the Xinjiang candidate area for China's HLW disposal[J].Engineering Geology,2015,197:42-56.