松散层富水性评价及水体采动等级划分

发布时间：2018-06-18 23:34

  本文选题：水文地质参数 + 富水性　； 参考：《煤矿安全》2016年05期

【摘要】：为了确定12采区安全煤岩柱留设类型。基于赵家寨矿12采区东翼松散层水文及地质勘探资料,结合抽水试验数据和计算含水层参数的Theis公式,研究了松散层厚度分布及松散层含(隔)水层的垂向变化规律,特别是松散层底部含水层的水文地质参数特征。结果表明,12采区松散层厚度变化受古地形控制,垂向具有多层复合结构,含水层连续性较差,底部含水层富水性为弱到中等,水体采动等级大部分属于Ⅱ级,局部属于Ⅰ级,为留设安全煤岩柱类型提供了科学依据。
[Abstract]:In order to determine the type of safe coal pillar in 12 mining area. Based on hydrological and geological exploration data of loose bed in the eastern wing of Zhaojiazhai Mine No. 12 mining area, combined with pumping test data and Theis formula for calculating aquifer parameters, the distribution of loose layer thickness and the vertical variation law of loose layer containing (separating) water layer are studied. In particular, the hydrogeological parameters of the aquifer at the bottom of the loose layer. The results show that the variation of loose layer thickness is controlled by paleotopography, vertical multi-layer composite structure, poor continuity of aquifer, weak to medium water rich in bottom aquifer, most of the water mining grade belongs to class 鈪，

本文编号：2037282