检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]北方交通大学隧道与岩土工程研究所
出 处:《地质灾害与环境保护》1999年第2期30-36,共7页Journal of Geological Hazards and Environment Preservation
摘 要:南京铅锌银矿是地下开采矿山,历史上遗留的大量采空区已严重威胁地面风景区的稳定,区内不断发生地面沉降、塌陷等地质灾害;1988年以后,采矿方法更改为分级尾砂充填法后,随之又带来对井下作业环境的污染;选矿后产生的尾泥直接排入长江,造成环境污染。在本项研究中,提出“用全尾砂加高水固化材料充填采空区和生产采场”方案,并进行工业性试验,效果良好。The underground mining in Nanjing Pb-Zn-Ag mine has brought about a number of mined-areas in history,which have been threatening the stability of landscape of Qixia mountain and inducing many geo-hazards such as ground subsidence and collapse continuously. The mining method of graded tailings-filling has been used since 1988. But it brought about the pollution of underground working environment. In addition the tailings mud from mill run were plunged into the Tangtze river and polluted the environment.In this research project, a method called 'filing mined-out area and stope using mixture of tailing sand and high-water consolidating materials' is proposed. The industrial experiments of this method have been performed with a good result. It has been shown that the method can solve mentioned three problems.
分 类 号:TD862.2[矿业工程—金属矿开采] TD863[矿业工程—矿山开采]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.104