梧桐庄矿首采面突水原因分析研究

Wutongzhuang Mine First Mining Face Water Inrush Reason Analysis Research

根据梧桐庄矿首采面开采前后综合水文地质勘探资料、底板突水前后水文动态观测数据以及突水特点等,分析论证了首采面底板突水的成因。得出自然条件下B1、B3孔一线范围内岩层发育的自上而下垂向或高角度裂隙密集带是底板突水的内因和控制因素,采动影响是促使采场水文地质条件发生变化、奥灰补给野青含水层补给水量增加、野青含水层水位升高的主要因素,是引起底板突水的促进因素,奥灰含水层富水带的存在以及高水头是突水的物质来源和动力条件。

Based on Wutongzhuang Mine integrated hydrogeological exploration data before and after the initial mining surface mining, hydrological dynamic observation data before and after the inrush and the characteristics of water inrush, etc., the cause of first mining face inrush was analyzed and demonstrated. It was concluded that under the condition of natural B1, B3 hole of top-down vertical line within the scope of strata or high angle fracture density was inrush internal cause and control factors, mining influence was the main factor that prompted the hydrogeological conditions changing, ordovician limestone supply wiled green water-bearing stratum water supply increased, wiled green water-bearing stratum water level rose, promoted the cause of floor water inrush, ordovician limestone water-bearing stratum water enriched zone and high water head were water inrush source material and dynamic conditions.