滨海深部开采矿山水文地质环境调查与渗流场特征分析

发布时间：2018-03-05 18:03

本文选题：金属矿山　切入点：滨海深部开采　出处：《工程地质学报》2016年04期 　论文类型：期刊论文

【摘要】：山东黄金矿业(莱州)有限公司三山岛金矿位于山东省莱州湾滨海地带,特殊地理位置使矿山采掘工程面临更为复杂的水文地质条件,大规模深部滨海开采存在涌、突水的安全隐患。在此背景下,考虑区域内发育断裂带的影响,对矿山的水文地质特征进行区域划分与评价;在矿区深部3个水平中段进行了节理裂隙现场调查,统计分析了上盘、矿体、下盘岩体的节理裂隙分布规律;基于裂隙几何参数量测与Monte-Carlo结构面随机模拟方法,计算并修正了深部工程岩体的渗透系数;借助FLAC3D数值计算手段,对矿区未来深部开采过程中渗流场的演化规律及影响范围进行了预测。研究对于保障复杂水文地质条件矿山深部开采活动的安全进行具有一定的指导与借鉴意义。
[Abstract]:The Sanshandao Gold Mine of Shandong Gold Mining (Laizhou) Co., Ltd is located in the coastal area of Laizhou Bay, Shandong Province. The special geographical location makes the mining project face more complicated hydrogeological conditions, and large-scale deep coastal mining exists. In this context, considering the influence of the developed fault zone in the area, the hydrogeological characteristics of the mine are divided and evaluated, and the field investigation of joints and fractures is carried out in the three middle sections of the deep level of the mining area. The distribution law of joints and fissures in upper face, orebody and bottom rock mass is analyzed statistically, the permeability coefficient of deep engineering rock mass is calculated and corrected based on the measurement of geometric parameters of fractures and the random simulation method of Monte-Carlo structural plane, and the seepage coefficient of deep engineering rock mass is calculated and corrected by means of FLAC3D numerical calculation. The evolution law and influence range of seepage field in the future deep mining process of mining area are forecasted, and the study has certain guidance and reference significance for ensuring the safety of deep mining activities in complex hydrogeological conditions.
【作者单位】：青岛市勘察测绘研究院;青岛岩土工程技术研究中心;北京科技大学土木与环境工程学院;
【基金】：“十二五”国家科技支撑计划课题(No.2012BAB08B01) 国家自然科学基金项目(No.51034001) 河北省自然科学基金(No.E2013403032)资助
【分类号】：P641.4

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