小厂坝矿区岩爆倾向性研究
|
摘要
岩爆倾向性是研究岩爆发生机理及发生机制的基础,本文采用脆性岩爆指标、Barton岩爆指标、弹性变形能岩爆指标和冲击能岩爆指标对矿体及上盘、下盘主要围岩进行了岩爆倾向性研究,根据各指标的评价结果进行了综合评判。研究结果显示,矿体和下盘围岩属于强岩爆倾向性,在矿体开采过程中,应加强对地压变化的监测,采取适当措施,采用合理的开采方式及开采顺序,降低岩爆发生的概率和强度。
Rockburst tendency is the basis for studying the mechanism of rockburst.In this paper,brittle rockburst index,Barton rockburst index,elastic deformation energy rockburst index and impact energy rockburst index are applied to the orebody and the surrounding rock mass of the upper and lower plates.The rockburst tendency research is conducted and comprehensive evaluation is made based on the evaluation results of various indicators.The results of the study show that the orebody and the surrounding wall rocks belong to the tendency of strong rockburst.During the mining process of the ore body,the change of ground pressure should be strengthened.Monitoring,taking appropriate measures,adopting reasonable mining methods and mining sequences could reduce the probability and intensity of rock bursts.
Rockburst tendency is the basis for studying the mechanism of rockburst.In this paper,brittle rockburst index,Barton rockburst index,elastic deformation energy rockburst index and impact energy rockburst index are applied to the orebody and the surrounding rock mass of the upper and lower plates.The rockburst tendency research is conducted and comprehensive evaluation is made based on the evaluation results of various indicators.The results of the study show that the orebody and the surrounding wall rocks belong to the tendency of strong rockburst.During the mining process of the ore body,the change of ground pressure should be strengthened.Monitoring,taking appropriate measures,adopting reasonable mining methods and mining sequences could reduce the probability and intensity of rock bursts.
引文
[1]苏国韶,蒋剑青,冯夏庭,等.岩爆弹射破坏过程的试验研究[J].岩石力学与工程学报,2016,35(10):1990-1999.SU Guoshao,JIANG Jianqing,FENG Xiating,et al.Experimental study of ejection process in rockburst[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(10):1990-1999.
[2]张传庆,卢景景,陈珺,等.岩爆倾向性指标及其相互关系探讨[J].岩土力学,2017,38(5):1397-1404.ZHANG Chuanqing,LU Jingjing,CHEN Jun,et al.Discussion on rock burst proneness indexes and their relation[J].Rock and Soil Mechanics,2017,38(5):1397-1404.
[3]徐则民,黄润秋.岩爆与爆破的关系[J].岩石力学与工程学报,2003,22(3):414-419.XU Zemin,HUANG Runqiu.Relationship between rock burst and blasting[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(3):414-419.
[4]王超圣,周宏伟,王子辉,等.不同应力状态下北山花岗岩岩爆倾向性研究[J].工程科学与技术,2017,49(6):84-90.WANG Chaosheng,ZHOU Hongwei,WANG Zihui,et al.Investigation on the rockburst proneness of Beishan granite under different stress state[J].Advanced Engineering Sciences,2017,49(6):84-90.
[5]李墨潇,宋英华,吕伟,等.地下工程岩体岩爆倾向性微观机制研究[J].中国安全科学学报,2017,27(3):89-94.LI Moxiao,SONG Yinghua,LYU Wei,et al.Study on micromechanism of rockburst tendency of rock mass in underground engineering[J].China Safety Science Journal,2017,27(3):89-94.
[6]刘树新,鲁思佐,陈阳.基于多重判据的某深部矿区岩爆倾向性研究[J].矿业研究与开发,2017(2):9-12.LIU Shuxing,LU Sizuo,CHEN Yang.Study on rockburst proneness of deep mining based on multip criterions[J].Mining Research and Development,2017(2):9-12.
[7]邹平,曹宇,胡培良,等.深部开采矿山岩爆倾向性研究[J].采矿技术,2017,12(2):50-52.ZOU Ping,CAO Yu,HU Peiliang,et al.Study on rockburst tendency in deep mining mines[J].Mining Technology,2017,12(2):50-52.
[8]殷志强.高应力储能岩体动力扰动破裂特征研究[D].长沙:中南大学,2012.
[9]郭建强,赵青,王军保,等.基于弹性应变能岩爆倾向性评价方法研究[J].岩石力学与工程学报,2015,34(9):1886-1893.GUO Jianqiang,ZHAO Qing,WANG Junbao,et al.Rockburst prediction based on elastic strain energy[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(9):1886-1893.
[10]唐礼忠,王文星.一种新的岩爆倾向性指标[J].岩石力学与工程学报,2002,21(6):874-878.TANG Lizhong,WANG Wenxing.New rocburst proneness index[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(6):874-878.
[11]唐礼忠,潘长良,王文星.用于分析岩爆倾向性的剩余能量指数[J].中南工业大学学报:自然科学版,2002,33(2):129-132.TANG Lizhong,PAN Changliang,WANG Wenxing.Surplus energy index for analyzing rock burst proneness[J].Journal of Central South University of Technology,2002,33(2):129-132.
[2]张传庆,卢景景,陈珺,等.岩爆倾向性指标及其相互关系探讨[J].岩土力学,2017,38(5):1397-1404.ZHANG Chuanqing,LU Jingjing,CHEN Jun,et al.Discussion on rock burst proneness indexes and their relation[J].Rock and Soil Mechanics,2017,38(5):1397-1404.
[3]徐则民,黄润秋.岩爆与爆破的关系[J].岩石力学与工程学报,2003,22(3):414-419.XU Zemin,HUANG Runqiu.Relationship between rock burst and blasting[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(3):414-419.
[4]王超圣,周宏伟,王子辉,等.不同应力状态下北山花岗岩岩爆倾向性研究[J].工程科学与技术,2017,49(6):84-90.WANG Chaosheng,ZHOU Hongwei,WANG Zihui,et al.Investigation on the rockburst proneness of Beishan granite under different stress state[J].Advanced Engineering Sciences,2017,49(6):84-90.
[5]李墨潇,宋英华,吕伟,等.地下工程岩体岩爆倾向性微观机制研究[J].中国安全科学学报,2017,27(3):89-94.LI Moxiao,SONG Yinghua,LYU Wei,et al.Study on micromechanism of rockburst tendency of rock mass in underground engineering[J].China Safety Science Journal,2017,27(3):89-94.
[6]刘树新,鲁思佐,陈阳.基于多重判据的某深部矿区岩爆倾向性研究[J].矿业研究与开发,2017(2):9-12.LIU Shuxing,LU Sizuo,CHEN Yang.Study on rockburst proneness of deep mining based on multip criterions[J].Mining Research and Development,2017(2):9-12.
[7]邹平,曹宇,胡培良,等.深部开采矿山岩爆倾向性研究[J].采矿技术,2017,12(2):50-52.ZOU Ping,CAO Yu,HU Peiliang,et al.Study on rockburst tendency in deep mining mines[J].Mining Technology,2017,12(2):50-52.
[8]殷志强.高应力储能岩体动力扰动破裂特征研究[D].长沙:中南大学,2012.
[9]郭建强,赵青,王军保,等.基于弹性应变能岩爆倾向性评价方法研究[J].岩石力学与工程学报,2015,34(9):1886-1893.GUO Jianqiang,ZHAO Qing,WANG Junbao,et al.Rockburst prediction based on elastic strain energy[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(9):1886-1893.
[10]唐礼忠,王文星.一种新的岩爆倾向性指标[J].岩石力学与工程学报,2002,21(6):874-878.TANG Lizhong,WANG Wenxing.New rocburst proneness index[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(6):874-878.
[11]唐礼忠,潘长良,王文星.用于分析岩爆倾向性的剩余能量指数[J].中南工业大学学报:自然科学版,2002,33(2):129-132.TANG Lizhong,PAN Changliang,WANG Wenxing.Surplus energy index for analyzing rock burst proneness[J].Journal of Central South University of Technology,2002,33(2):129-132.