FLAC数值模拟在某铀矿露天边坡退役治理中的应用  

Application of FLAC numerical simulation in open-pit slope decommissioning treatment of a uranium mine

作　　者：郭元[1] 张钊 尚歆[1] 宋丽霞[1] 

机构地区：[1]核工业北京化工冶金研究院,北京101149 [2]新原核工业有限责任公司,广西南宁530001

出　　处：《铀矿冶》2015年第3期189-193,共5页Uranium Mining and Metallurgy

摘　　要：某铀矿露天边坡在基建时曾多次发生大规模变形破坏。2010年,开始矿山退役治理工作,露天边坡成为治理重点。借鉴以前露天边坡研究结果和治理情况,采用FLAC对该铀矿露天边坡退役时的稳定性进行数值模拟。模拟结果发现了该露天边坡最有可能发生变形破坏的位置;提出了布置预应力锚索和格构梁联合加固方式是边坡退役治理相对简单和稳妥的方案。Massive deformation and failure of the open-pit slope had occurred many times in the con- struction of a uranium mine. The treatment of open-pit slopes was the key part of the mine decommis- sioning treatment when it was started in 2010. Taking the results of open-pit slope research and gov- ernance achievement as reference, FLAC was adopted to numerical simulation the stability of the de- commissioned open pit slope. The results indicate that the location of deformation and failure at the open-pit slope which are most likely to occur are found out by means of FLAC numerical analysis. At last, the method of using combined reinforcement of pre-stressed anchor cable and lattice beam was employed, which is a relatively simple and reliable scheme for the decommissioning treatment of open- pit slope.

关 键 词：露天边坡 退役治理 预应力锚索 格构梁 

分 类 号：TD824.7[矿业工程—煤矿开采] TD868[矿业工程—矿山开采]