摘要
峰峰矿区岩溶地下水动态天然状态下,多年呈稳定的周期性的变化,受煤矿疏排水和人工开采影响,呈衰减状态下的周期性变化,且各径流带上由于开采规模不同,呈现不同的变化特点,开采规模大,地下水衰减幅度大,开采规模小,地下水衰减幅度小,煤矿停采后水位大幅回升。据此,科学设计开采矿井布局,在南部径流带上建供水水源地,进行疏干降压供水,减少北部水源地开采量,同时从保护水资源和矿井生产两方面开展防治水工作,提高矿井水利用率,并根据地下水水位、流场及泉流量动态变化。
In a natural state, the dynamic karst groundwater in Fengfeng mining areas keeps a stable cyclical change for many years but shows a periodic change in a attenuation state affected by coal mining, dredging, and artificial drainage. Due to different sizes of mining, each runoff belt shows different changes： a large-scale exploitation of groundwater results in a quick attenuation, a small-scale exploitation of groundwater results in a slow attenuation, and the water level rebound sharply when coal mining comes to the end. Accordingly, the layout of the mine exploitation is scientifically designed. Water supply sources were constructed in the southern runoff belt to conduct dewatering step-down water and to reduce the amount of the northern water resources exploitation. In addition, we control the artificial groundwater discharge, artificial exploitation, and mines dredging in runoff belt based on dynamic changes of groundwater levels, flow field, and spring flow volume so as to improve the utilization of mine water and to reach the comprehensive goal of preventing water inrush.
出处
《采矿与安全工程学报》
EI
北大核心
2010年第3期389-394,共6页
Journal of Mining & Safety Engineering
基金
国家重点基础研究发展计划(973)项目(2007CB209400
2006CB202210)
国家自然科学基金重点项目(50634050)
国家自然科学基金项目(50974115)
高等学校学科创新引智计划项目(B07028)
关键词
煤炭开采
岩溶地下水
地下水动态
保水采煤
对策途径
coal mining
karst groundwater
groundwater dynamics
water-preserving mining countermeasure way
