朱概塔煤矿采空区水对矿井建设影响评价  

Evaluation of effect of goaf water on mine construction in Zhujita Coal Mine

作　　者：王得瑜 WANG Deyu(Shenmu City Sunjiacha Town Zhugaita Coal Mine,Yulin 719313,China)

机构地区：[1]神木市孙家岔镇朱概塔煤矿,陕西榆林719313

出　　处：《陕西煤炭》2025年第4期95-100,共6页Shaanxi Coal

摘　　要：准确评价采空区水对矿井建设影响,对于煤矿安全开采至关重要。深入分析了朱概塔煤矿建井各阶段的水文地质条件及充水因素,重点针对地下水、采空区积水及构造水对矿井建设的潜在威胁进行了评价,并据此制定了不同建设阶段的防治水方案。研究结果显示,朱概塔煤矿3^(-1)煤层采空区面积预计达248.0万m^(2),积水量约为90.0万m^(3)。矿井建设过程中,5^(-1)、5^(-2)煤层顶板延安组砂岩水为主要充水水源,而充水通道主要包括巷道塑性区、锚杆及锚索孔。砂岩富水性较弱,对矿井建设各阶段的影响程度较小。针对三期工程的不同工作面,详细分析了其地质及水文地质条件,明确了充水水源及通道,并提出了相应的防治水措施。本研究为朱概塔煤矿的安全高效建设提供了重要的科学依据和防治水指导。Accurately evaluating the impact of goaf water on mine construction is crucial for the safe mining of coal mines.This paper conducts an in-depth analysis of the hydrogeological conditions and water recharge factors at various stages of the mine construction in Zhugaita Coal Mine.The study focuses on evaluating the potential threats posed by groundwater,water accumulated in goaf areas,and structural water to mine construction,and accordingly formulates water prevention and control schemes for different construction stages.The results show that the goaf area of 3^(-1)coal seam in the mine is expected to reach 2.48 million m^(3),with a water accumulation volume of approximately 0.9 million m 3.During the mine construction process,the sandstone water from the Yan’an Formation of the 5^(-1)and 5^(-2)coal seam roofs serves as the main water recharge source,while the main recharge channels include the plastic zone of roadways,bolt holes,and cable anchor holes.The sandstone has weak water abundance,resulting in a relatively small impact on each stage of mine construction.For different working faces in the three-phase project,this paper also conducts a detailed analysis of their geological and hydrogeological conditions,identifies the water recharge sources and channels,and proposes corresponding water prevention and control measures.

关 键 词：朱概塔煤矿 采空区 水文地质 矿井建设 

分 类 号：TD745[矿业工程—矿井通风与安全]