摘要
山谷型尾矿库上坝道路在因地形限制导致坝外道路无法实现或难以实现上坝功能的情况下,在尾矿库初期坝外坡修筑上坝道路,以原坝体剖面外轮廓线为基准面,保证内外坡整体坡度不变,局部调整坝体外坡面坡度,同时提高坝体内部碾压系数,设置"之"字形斜马道做为初期坝上坝道路坝面段[1]。此方法适用于尾矿库下游地势复杂或因其他设施布置施工受限的情况,可避免坝外上坝道路因土石方开挖、山体爆破带来的边坡处理等问题,有利于降低施工干扰,控制工程量,减少生态环境破坏。
In the case of the valley-type tailing storage facility,road can not be built on dam,or the road can not reach the top of the dam,the road need to be built out of dam at the early stage of dam construction,to ensure that the overall inside slope and outside slope with the same dip,local adjustment of out side slope dip,while increasing the compression coefficient of the dam body,build "zigzag road" as initial "dam on dam" access.This method is applicable to the complex topography of the tailing storage facility or the limited construction of other facilities,which can avoid the slope change caused by excavation,blasting,the method is good to reduce the construction dis-turbance,to reduce construction quantity and to reduce ecological impact.
作者
李新宽
LIXin-kuan(Jinduicheng Molybdenum Co.,Ltd.,Huaxian 714102,Shaanxi,China)
出处
《中国钼业》
2018年第6期25-27,共3页
China Molybdenum Industry
关键词
山谷型
尾矿库
初期坝
上坝道路
斜马道
修筑
valley-type
tailing storage facility
initial dam
dam road
inclined road
construction
