辽宁某菱镁矿山主要地质灾害及防治对策

Main geo-hazards and their countermeasures in a magnesite mine in Liaoning Province

辽宁省某菱镁矿山是辽南镁质耐火材料原料主要基地之一。由于分散开采,造成采矿坑道多重叠交叉,地表井口星布,矿山生态环境破坏严重。诱发的矿山地质灾害较为普遍,多处大面积出现岩石崩塌、采空区地面塌陷和地裂缝灾害,致使矿区停采。对资源开发利用的安全构成了极大的威胁,在很大程度上严重制约了镁质耐火材料原料基地的生产和发展,限制了该地区工、农业的可持续发展。矿山脆弱的地质环境条件和高强度、不科学的矿业开发活动是诱发矿山地质灾害的主要因素。文章针对矿山的地质灾害特征进行分析并提出了相应的防治对策,指出了防治矿山地质灾害应贯彻执行的方针政策。

Because of improper mining activities, such as scatter mining, crossing of mining adits, eco-environment is heavily damaged in the area. Rockmass slides, ground subsidence in excavation areas and ground fissures often cause the stopping of mining in the area. This restricts the development of local economics. This paper analyzes the features of geohazards resulted from mining and proposes a series of countermeasures for control and prevention.