岩溶区某尾矿库加高扩容工程稳定性研究
|
摘要
以湖南某铜矿所属尾矿库加高扩容工程为例,采用物探高密度电阻率法对尾矿库区场地内可能存在的岩溶发育地段及影响范围进行了测量,得到了尾矿库库区范围内的岩溶分布情况。依据设计的尾矿库加高扩容方案,采用FLAC3D数值分析了尾矿库加高扩容工程与库区范围内岩溶的相互影响。分析结果表明:设计采用的上游式加高方案对底部岩溶区的稳定性影响较小,库区范围内的岩溶发育区对尾矿库加高扩容工程坝体影响较小,并提出了对岩溶发育区岩溶漏斗的封堵措施,对岩溶发育区采取防渗措施,通过研究论证了尾矿库加高扩容方案的可行性,为尾矿库加高扩容工程的设计及今后的运行指导性的建议。
Taking the heightening and expansion project of tailing reservoir belonging to a copper mine in Hunan as a case,the geophysical prospecting high-density resistivity method was used to investigate the potential karst development areas and their impact areas in the tailings reservoir site. The karst distribution within the tailings reservoir area was obtained.According to the heightening and expansion design of the tailings reservoir,the FLAC3 Dnumerical analysis was used to analyze the interaction between the heightening of the tailings reservoir and the karst within the reservoir area. The analysis results showed that the upstream heightening scheme has little impact on the stability of the karst area at the bottom and the karst development area within the reservoir area has little impact on the heightening and expansion project of the tailing pond.Some measures to block karst funnels in the karst development area was put forward and the related anti-seepage measures were proposed. Through the research,the feasibility of the heightening program for tailing ponds has been demonstrated,which provides guidance for designing the heightening and expansion project of tailings pond in future.
Taking the heightening and expansion project of tailing reservoir belonging to a copper mine in Hunan as a case,the geophysical prospecting high-density resistivity method was used to investigate the potential karst development areas and their impact areas in the tailings reservoir site. The karst distribution within the tailings reservoir area was obtained.According to the heightening and expansion design of the tailings reservoir,the FLAC3 Dnumerical analysis was used to analyze the interaction between the heightening of the tailings reservoir and the karst within the reservoir area. The analysis results showed that the upstream heightening scheme has little impact on the stability of the karst area at the bottom and the karst development area within the reservoir area has little impact on the heightening and expansion project of the tailing pond.Some measures to block karst funnels in the karst development area was put forward and the related anti-seepage measures were proposed. Through the research,the feasibility of the heightening program for tailing ponds has been demonstrated,which provides guidance for designing the heightening and expansion project of tailings pond in future.
引文
[1]于广明,宋传旺,潘永战,等.尾矿坝安全研究的国外新进展及我国的现状和发展态势[J].岩石力学与工程学报,2014,33(S1):3238-3248.Yu Guangming,Song Chuanwang,Pan Yongzhan,et al.Review ofnew progress in tailing dam safety in foreign research and current state with development trent in China[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(S1):3238-3248.
[2]田文旗,薛剑光.尾矿库安全技术与管理[M].北京:煤炭工业出版社,2006.Tian Wen Qi,Xue Jianguang.Tailings Deposit Safety Technology and Managemen[tM].Beijing:Coal Industry Press,2006.
[3]武伟伟,龚宇同,秦秀山.小型尾矿库存在的问题及安全对策分析[J].有色金属:矿山部分,2011,63(5):49-51.Wu Weiwei,Gong Yutong,Qin Xiushan.Analysis on existing problems of small tailing s pond and safety precautions[J].Nonferrous Metals:Mine Section,2011,63(5):49-51.
[4]张培安.栗西尾矿库挖潜改造延长服务期探讨研究[J].有色金属:选矿部分,2003(5):43-45.Zhang Peian.Study on the serve period is prolonged in lixi tailings dam by tap the potentialities and remakes[J].Nonferrous Metals:Mineral Processing Section,2003(5):43-45.
[5]林国洪.某铜矿尾矿库运行和深部开采条件下的稳定性分析[J].有色金属工程,2014,4(4):65-67.Lin Guohong.Analysis of stability of a copper mine tailings operation and deep mining conditions[J].Non-ferrous Metal Engineering,2014,4(4):65-67.
[6]陈星,朱远乐,肖雄,等.金属矿山[J].尾矿坝溃坝对下游淹没和撞击的研究,2014(12):188-192.Chen Xing,Zhu Yuanle,Xiao Xiong,et al.Impact of tailings dam failure on the downstream flood and collision[J].Metal Mine,2014(12):188-192.
[7]康永红,马秋,卢萍,等.红泥坡铜矿地下开采对地表尾矿库影响的预测[J].有色金属:矿山部分,2017,69(1):77-82.Kang Yonghong,Ma Qiu,Lu Ping,et al.Influence prediction of underground mining on surface tailings pond in Hongnipo Copper Mine[J].Nonferrous Metals:Mine Section,2017,69(1):77-82.
[8]宋志.岩溶地区尾矿库岩溶处理及安全管理[J].工程建设,2017,49(1):38-42.Song Zhi.Karst treatment and safety management of tailing dam in karst area[J].Engineering Research,2017,49(1):38-42.
[9]贺跃光,杨小礼,何继善.岩溶地貌某尾矿坝灾害评价与安全监测阈值设定[J].中南大学学报:自然科学版,2007,38(4):778-783.He Yueguang,Yang Xiaoli,He Jishan.Karst landform tailings dam disaster appraisal and setting of safety monitor threshold[J].J Cent South Univ:Science and Technology,2007,38(4):778-783.
[10]眭素刚,徐世光,范柱国,等.大砂地尾矿库岩溶问题分析[J].辽宁工程技术大学学报:自然科学版,2012,31(4):494-499.Sui Shugang,Xu shiguang,Fan Zhuguo,et al.Analysis on Karst for Dashadi tailings pond[J].Journal of Liaoning Technical University:Natural Science,2012,31(4):494-499.
[2]田文旗,薛剑光.尾矿库安全技术与管理[M].北京:煤炭工业出版社,2006.Tian Wen Qi,Xue Jianguang.Tailings Deposit Safety Technology and Managemen[tM].Beijing:Coal Industry Press,2006.
[3]武伟伟,龚宇同,秦秀山.小型尾矿库存在的问题及安全对策分析[J].有色金属:矿山部分,2011,63(5):49-51.Wu Weiwei,Gong Yutong,Qin Xiushan.Analysis on existing problems of small tailing s pond and safety precautions[J].Nonferrous Metals:Mine Section,2011,63(5):49-51.
[4]张培安.栗西尾矿库挖潜改造延长服务期探讨研究[J].有色金属:选矿部分,2003(5):43-45.Zhang Peian.Study on the serve period is prolonged in lixi tailings dam by tap the potentialities and remakes[J].Nonferrous Metals:Mineral Processing Section,2003(5):43-45.
[5]林国洪.某铜矿尾矿库运行和深部开采条件下的稳定性分析[J].有色金属工程,2014,4(4):65-67.Lin Guohong.Analysis of stability of a copper mine tailings operation and deep mining conditions[J].Non-ferrous Metal Engineering,2014,4(4):65-67.
[6]陈星,朱远乐,肖雄,等.金属矿山[J].尾矿坝溃坝对下游淹没和撞击的研究,2014(12):188-192.Chen Xing,Zhu Yuanle,Xiao Xiong,et al.Impact of tailings dam failure on the downstream flood and collision[J].Metal Mine,2014(12):188-192.
[7]康永红,马秋,卢萍,等.红泥坡铜矿地下开采对地表尾矿库影响的预测[J].有色金属:矿山部分,2017,69(1):77-82.Kang Yonghong,Ma Qiu,Lu Ping,et al.Influence prediction of underground mining on surface tailings pond in Hongnipo Copper Mine[J].Nonferrous Metals:Mine Section,2017,69(1):77-82.
[8]宋志.岩溶地区尾矿库岩溶处理及安全管理[J].工程建设,2017,49(1):38-42.Song Zhi.Karst treatment and safety management of tailing dam in karst area[J].Engineering Research,2017,49(1):38-42.
[9]贺跃光,杨小礼,何继善.岩溶地貌某尾矿坝灾害评价与安全监测阈值设定[J].中南大学学报:自然科学版,2007,38(4):778-783.He Yueguang,Yang Xiaoli,He Jishan.Karst landform tailings dam disaster appraisal and setting of safety monitor threshold[J].J Cent South Univ:Science and Technology,2007,38(4):778-783.
[10]眭素刚,徐世光,范柱国,等.大砂地尾矿库岩溶问题分析[J].辽宁工程技术大学学报:自然科学版,2012,31(4):494-499.Sui Shugang,Xu shiguang,Fan Zhuguo,et al.Analysis on Karst for Dashadi tailings pond[J].Journal of Liaoning Technical University:Natural Science,2012,31(4):494-499.