摘要
在分析矿区地质及水文地质条件的基础上,以冯家塔煤矿1201工作面为例,论述了府谷矿区矿井突水因素,认为大气降水、岩溶水和地表水是矿井充水的主要水源,断层、采煤形成的裂隙带是矿井充水的通道,小煤矿采空区是未来煤矿安全生产的重大隐患。运用突水系数和水文地质实验法,对矿区的突水危险区域进行了评价,指出井田西北部突水系数大于0.6,可能存在突水危险;清水川地堑断裂带内富水性及导水性弱,对煤层开采不会造成威胁。最后提出了加强矿井水文地质勘查、做好矿井涌水量观测等矿井防治水建议。
On the analyses of mine area geological and hydrogeological basis,to take No.1201 working face of the Fengjiata coalmine as an example,discussed Fugu mine area water bursting factors.Considered that the atmospheric precipitation,karstic water and surface water are main sources of mine water filling;faults,coal mining formed fractured zones are mine water filling channels,small coalmine gob areas are fatal hidden troubles to coalmine safety production in the future.To use water bursting coefficient and hydrogeological experimental methods assessed water bursting hazardous areas in the mine area.Point out that water bursting coefficient in the northwestern part of the minefield is larger than 0.6 and may cause water bursting risks;water yield property and water conducting property are weak in Qingshuichuan graben fractured zone,thus have no threaten on coal mining.Finally,suggestions of to strengthen hydrogeological exploration,mine water inflow observation etc.have put forward.
出处
《中国煤炭地质》
2010年第4期35-39,共5页
Coal Geology of China
基金
陕西省软科学计划项目(2007KR18
2008KR58)
关键词
矿井突水
充水因素
突水危险性区域
防治水措施
府谷矿区
mine water bursting
water filling factor
water bursting hazardous area
water control measures
Fugu mine area
