渭北煤田铜川矿区鸭口煤矿充水因素分析  

Water Inrush Factor Analysis in Yakou Coalmine,Tongchuan Mining Area,Weibei Coalfield

作　　者：尹帅[1] 周鹏 佘继平[1] 

机构地区：[1]成都理工大学能源学院,成都610059 [2]鸭口煤矿有限责任公司,陕西铜川727022

出　　处：《中国煤炭地质》2013年第2期43-47,共5页Coal Geology of China

摘　　要：地下水文地质特征影响因素研究可以为开展矿井充水防治工作提供依据。通过对渭北煤田铜川矿区鸭口煤矿的水文地质资料进行综合分析,分析认为:地表水与本区二水平涌水量之间具有一定的相关性,而老空积水则与之无明显的相关性;二叠系石千峰组、奥陶系峰峰组、石炭系太原组石英砂岩层和K2灰岩含水层均不是造成矿井充水的主要原因;上石盒子组中下部砂岩含水层造成5-2煤层充水的可能性较小,下石盒子组下部砂岩和山西组下部砂岩含水层可引起煤层顶板充水;中、小型断裂带可以成为矿井充水的良好通道;二水平冒裂带波及范围至山西组下部砂岩含水层,造成充水的可能性较小;封闭不良的钻孔可以导水,严重时可以造成矿井充水。研究结论可为合理有效的开展矿井水防治工作提供一些理论依据。Studies on hydrogeological characteristic impacting factors can provide basis in mine water inrush controlling.After comprehensively analyzed hydrogeological data in the Yakou coalmine,Tongchuan mining area,Weibei coalfield considered that the water inflow into the second level of the mine has certain relevancy with surface water,while the gob area ponding without obvious relevancy with surface water.The Permian Shiqianfeng Formation,Ordovician Fengfeng Formation,Carboniferous Taiyuan Formation quartzose sandstone and K2 limestone aquifers are all not the main factor to cause mine water inrush.Middle lower part sandstone aquifer in the Shangshihezi Formation is less likely to cause coal seam 5-2 water inrush,while the Xiashihezi Formation lower sandstone and Shanxi Formation lower sandstone aquifers can cause coal roof water inrush.Medium and small faulted zones can be the favorable channels of mine water inrush.The scope of second level caving fractured zone can reach to Shanxi Formation lower sandstone aquifer with little possibility to cause water inrush.Poorly sealed boreholes can be the water conducted channels,can cause water bursting when severity.The study can provide theoretical basis in the launching of mine water control works reasonably and effectively.

关 键 词：水文地质特征 矿井突水 充水水源 断层破碎带 防治措施 鸭口煤 

分 类 号：P641.461[天文地球—地质矿产勘探]