眼前山铁矿地表水控制方法与措施研究
投稿时间:2018-06-12  修订日期:2019-04-27  点此下载全文
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作者单位E-mail
吴庆深 鞍钢集团矿业有限公司大孤山分公司 wqs_anshan@163.com 
刘显锋 鞍钢集团矿业有限公司眼前山铁矿  
徐能雄 中国地质大学北京 xunengxiong@cugb.edu.cn 
基金项目:国家自然科学基金面上项目(40872183、41772326)
中文摘要:受复杂地形地貌特征与水文地质条件影响,眼前山铁矿井下开采过程中的水害问题尤为突出。特殊的地形地貌特征决定了露天采场是地表水的汇聚点,若不能有效地治理地表水,来自周围山体的地表水将汇入露天矿坑,并经矿坑渗入地下采场,从而造成严重水害。为降低井下开采中的水害风险,确保生产安全,本文根据眼前山矿区的水文地质特征,研究了铁矿开采影响下地表水径流规律,预测了地表水径流量,计算了露天采场坑底正常日汇水量与最大日汇水量,并采用数值模拟方法确定了井工开采过程中地表沉陷区边界,优化了矿区地表防排水方法,提出了有效的地表水控制措施,为眼前山铁矿地表水控制与露天矿坑防水工程设计提供依据。
中文关键词:地表水  矿区开采  水害  防治
 
Study on the Control Methods and Measures of Surface Water in Yanqianshan Iron Mine
Abstract:Affected by complex topography and hydrogeological conditions, the problem of water damage in the underground mining process of the Yanshanshan Iron Mine is particularly prominent. The special topographic features determine that the open pit is the point of convergence of surface water. If the surface water cannot be treated effectively, the surface water from the surrounding mountain will be taken into the open pit and infiltrated into the underground stope through the pit, causing serious water damage. In order to reduce the risk of water damage in underground mining and ensure production safety, this paper studies the surface water runoff law under the influence of iron ore mining based on the hydrogeological characteristics of the Yanqianshan mining area, predicts the surface water runoff, and calculates the normal daily water volume and the maximum daily water volume at the bottom of the open pit. Moreover, this paper determines the boundary of surface subsidence area during the mining process by using numerical simulation method, optimizes the surface water drainage method in the mining area, proposes effective surface water control measures, and provides the basis for the surface water control and the open pit waterproof engineering design.
keywords:Surface water  Mining  Water damage  Prevention
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