作　　者： ; ; ; ;

机构地区： 中南大学资源与安全工程学院

出　　处： 《中国地质灾害与防治学报》 2009年第3期11-17,共7页

摘　　要： 河南灵宝罗山矿区海拔标高640-1100m,山高沟深,地形地貌复杂。自1982年建矿以来,地下采矿工程已在山体下形成大量采空区,这些采空区的变形、破坏和塌陷,加上生产爆破振动等的长期作用与影响,致使矿区目前存在多个受采动影响的潜在滑坡体,并严重影响矿山的正常安全、高效生产。研究、协调并解决采矿与山体稳定性之间的关系,实现在矿山不停产的情况下,完成对矿区山坡的综合治理,成为一项既具有重大经济效益,也具有相当社会影响和环境效益的工程技术难题。针对罗山矿区滑坡体的实际情况,研究指出采空区山体的稳定性具有明显的时间和空间相关特性,随着时间的推移,采矿工程的空间规模会不断扩大,采动影响的空间范围和力度将随之增加。因此,在进行采动诱导山体失稳分析计算以及治理措施研究时,必须充分考虑这种特殊的时空动态影响因素的作用,并采取相应的对策。对于受采动影响的动态不稳定体而言,柔性边坡支护体系比刚性支护体系将更为有效。 Luosan mine is located in Linbao Henan, where there are many high mountains with steep slopes, elevation changing from 640 m to 1100 m. The geological situation in the mining area is very complicated. Many man - made cavities arose due to underground mining activities and became the biggest unsafe factor to the enterprises since 1982. In fact, combined with the deformation, failure/collapse and subsidence of those cavities with blasting impact on the mountains have made a few of potential unstable slopes in the mining area. The existence of these unstable slopes is certainly a big possible risk to the enterprise＇s working safety and productivity. In order to resolve the conflict between mining operation and slope stability, it is essential and urgent to study their correlation. For example, we need to make sure that the enterprises can keep running without any suspension while the possible unstable slopes are being treated. Given the real situation of Luosan mine and the results obtained in-situ, Luosan unstable slope is caused and controlled by underground mining. The slope stability depends both on time and space factors because the geometric scale of mining engineering increases as time and the factor of slope stability changes with its coordinates in space. The detailed studies in searching for reasonable and feasible stabilization measures showed that a deformable supporting system fits much better to the stabilization of time/space dependent unstable slopes, than a rigid supporting system.

关 键 词： 地下采矿 不稳定体 滑坡稳定性 影响因素 边坡加固 支护系统 河南罗山矿区

领　　域： [矿业工程] [建筑科学] [建筑科学]