后堆积渣山边坡封闭防复燃治理技术研究
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摘要
在对乌海市海勃湾区矿区环境综合治理过程中,为保证灭火施工后无复燃现象发生,对后堆积渣山进行合理规划,通过对平台、边坡进行防复燃封闭处理,切断氧气供给通道,防止复燃现象的发生。其中边坡封闭是封闭处理难点,在设计规划、防治难点分析的基础上,利用南方cass软件确定边坡封闭区域,采用"由上至下阶梯开挖,由下至上分层回填"治理思路,通过实验得出最佳回填材料配合比,确保坡面封闭效果、无复燃。
In the process of comprehensive environmental management of the mining area in Haibowan District,Wuhai City,in order to ensure that there is no re-ignition after the fire-fighting construction,the post-distribution slag mountain is rationally planned, and the platform and slope are closed for anti-reburning treatment. The oxygen supply channel prevents re-ignition. The slope closure is a dif?cult problem of closed treatment. On the basis of design planning and analysis of dif?cult points,the southern cass software is used to determine the closed area of the slope,and the management idea is to use "top-to-low step excavation and back-up strati?cation back?ll". Through the experiment,the optimal back?ll material mix ratio is obtained to ensure the slope sealing effect and no re-ignition.
In the process of comprehensive environmental management of the mining area in Haibowan District,Wuhai City,in order to ensure that there is no re-ignition after the fire-fighting construction,the post-distribution slag mountain is rationally planned, and the platform and slope are closed for anti-reburning treatment. The oxygen supply channel prevents re-ignition. The slope closure is a dif?cult problem of closed treatment. On the basis of design planning and analysis of dif?cult points,the southern cass software is used to determine the closed area of the slope,and the management idea is to use "top-to-low step excavation and back-up strati?cation back?ll". Through the experiment,the optimal back?ll material mix ratio is obtained to ensure the slope sealing effect and no re-ignition.
引文
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[2]宗辉,张可能.德兴铜矿富家坞矿区露采边坡稳定性分析[J].铜业工程,2005(1):13–17.
[3]全晓红.三峡库区兴山县龙王嘴岩质高边坡稳定性分析及加固设计[J].安徽地质,2006(2):123–125.
[4]李军财,李角群,文俊.大孤山铁矿深凹露天矿边坡工程[J].有色金属,2004(3):86–89.
[5]王明华,白云,孙爱祥.德兴铜矿西源岭410-380边坡变形特征与稳定性分析[J].露天采矿技术,2006(3):1–2,5.
[6]刘建东,邵长云,陈征宙,等.裂隙岩体边坡稳定性分析方法[J].东华理工学院学报,2004(3):255–259.
[7]《采矿手册》委员会.采矿手册[M].第三卷.北京:冶金工业出版社,1991.