荒沟抽水蓄能电站岩爆特征及综合监测预警
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摘要
黑龙江荒沟抽水蓄能电站岩爆现象复杂,既有断裂型岩爆特征又呈显著的时滞性,给现场岩爆监测工作带来较大困难。为此,采用微震与电磁辐射综合监测手段,对地下厂房深层开挖过程中进行了长期监测,建立了基于能量指数、累计视体积和电磁辐射强度与脉冲数的多元预警方法,并通过工程实践表明:微震法与电磁辐射法能实现工程区域静态-局部动态的多层次综合监测;提出的断裂型岩爆多元预警方法,可以有效实现工程区内岩爆预警,预警效果较好。
The rock burst phenomenon of Huanggou pumped storage power station in Heilongjiang Province is complex, the fracture rock burst characteristics and the significant time delay have brought great difficulties for the site rock burst monitoring work. Therefore, the comprehensive monitoring of microseismic and electromagnetic radiation is adopted to monitor the deep excavation process of underground plant for a long time, the multivariate early warning method is established based on energy index, cumulative visual volume, electromagnetic radiation intensity and pulse number. The project practice shows that, the microseismic method and the electromagnetic radiation method could realize the multi-level comprehensive monitoring of static and local dynamics in project area, the multivariate early warning method of fracture rock burst could realize effectively the early warning of rock burst in the project area, along with good effect.
The rock burst phenomenon of Huanggou pumped storage power station in Heilongjiang Province is complex, the fracture rock burst characteristics and the significant time delay have brought great difficulties for the site rock burst monitoring work. Therefore, the comprehensive monitoring of microseismic and electromagnetic radiation is adopted to monitor the deep excavation process of underground plant for a long time, the multivariate early warning method is established based on energy index, cumulative visual volume, electromagnetic radiation intensity and pulse number. The project practice shows that, the microseismic method and the electromagnetic radiation method could realize the multi-level comprehensive monitoring of static and local dynamics in project area, the multivariate early warning method of fracture rock burst could realize effectively the early warning of rock burst in the project area, along with good effect.
引文
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[6]李庶林,尹贤刚,郑文达,等.凡口铅锌矿多通道微震监测系统及其应用研究[J].岩石力学与工程学报,2005,24(12):2 048-2 053.
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[8]姜福兴,苗小虎,王存文,等.构造控制型冲击地压的微地震监测预警研究与实践[J].煤炭学报,2010,35(6):900-903.
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[10]Frid V.Electromagnetic radiation method for rock and gasoutburst forecast.J Appl Geophys,1997,38(2):97-104.
[11]窦林名,何学秋,王恩元,等.由煤岩变形冲击破坏所产生的电磁辐射[J].清华大学学报(自然科学),2001,41(12):86-88.
[12]何学秋,王恩元,聂百胜,等.2003.煤岩流变电磁动力学[M].北京:科学出版社.
[13]王恩元,刘晓斐,李忠辉,等.电磁辐射技术在煤岩动力灾害监测预警中的应用[J].辽宁工程技术大学学报(自然科学),2012,31(05):642-645.
[14]刘录君,李扬.荒沟抽水蓄能电站地下厂房及输水洞区岩爆成因分析[J].东北水利水电,2008,26(2):64-65.
[15]刘娟.小型洞室爆破施工技术的具体应用[J].水利规划与设计,2017(02):142-145.
[2]谷明成,侯发亮,陈成宗.秦岭隧道岩爆的研究[J].岩石力学与工程学报,2002,21(9):1324-1329.
[3]唐绍辉,吴壮军,陈向华.地下深井矿山岩爆发生规律及形成机理研究[J].岩石力学与工程学报,2003,22(8):1250-1254.
[4]徐则民,黄润秋,范柱国,等.长大隧道岩爆灾害研究进展[J].自然灾害学报,2004,13(2):16-24.
[5]唐春安,王继敏.岩爆及其微震监测预报--可行性与初步实践[J].岩石力学与工程动态,2010,89(1):43-55.
[6]李庶林,尹贤刚,郑文达,等.凡口铅锌矿多通道微震监测系统及其应用研究[J].岩石力学与工程学报,2005,24(12):2 048-2 053.
[7]唐礼忠,潘长良,杨承祥,等.冬瓜山铜矿微震监测系统及其应用研究[J].金属矿山,2006,364(10):41-44.
[8]姜福兴,苗小虎,王存文,等.构造控制型冲击地压的微地震监测预警研究与实践[J].煤炭学报,2010,35(6):900-903.
[9]OGAWAT,OIKEK,MIURAT.Electromagneticradiation from rocks[J].Journal of Geophysics Research,1985,90(D4):6245-6249.
[10]Frid V.Electromagnetic radiation method for rock and gasoutburst forecast.J Appl Geophys,1997,38(2):97-104.
[11]窦林名,何学秋,王恩元,等.由煤岩变形冲击破坏所产生的电磁辐射[J].清华大学学报(自然科学),2001,41(12):86-88.
[12]何学秋,王恩元,聂百胜,等.2003.煤岩流变电磁动力学[M].北京:科学出版社.
[13]王恩元,刘晓斐,李忠辉,等.电磁辐射技术在煤岩动力灾害监测预警中的应用[J].辽宁工程技术大学学报(自然科学),2012,31(05):642-645.
[14]刘录君,李扬.荒沟抽水蓄能电站地下厂房及输水洞区岩爆成因分析[J].东北水利水电,2008,26(2):64-65.
[15]刘娟.小型洞室爆破施工技术的具体应用[J].水利规划与设计,2017(02):142-145.