| 彬长矿区复合煤层联合开采区涌水特征 |
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| 引用本文： | 武谋达.彬长矿区复合煤层联合开采区涌水特征[J].煤田地质与勘探,2019,47(1):133-137. |
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| 作者姓名： | 武谋达 |
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| 作者单位： | 陕西彬长矿业集团有限公司 |
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| 摘 要： | 针对陕西彬长矿区复合煤层联合开采工作面的涌水异常，通过总结涌水特征，找出了涌水与地层、地质构造、地层压力等之间的联系，并从涌水水源、导水通道、涌水机理3个方面分析了涌水异常的原因。分析认为，受开采强度和安定组地层因素影响，洛河组已成为煤层开采的直接或间接充水含水层；褶曲构造产生的大倾角地层利于导水裂隙带发育，是形成密集出水区段条带特征的直接原因；区域地层具备产生离层水的条件，而特殊的煤层组合关系及开采顺序是造成工作面涌水峰值巨大的主要原因。
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| 关 键 词： | 联合开采 充水因素 离层水 涌水强度 |
| 收稿时间： | 2018-03-19 |
Analysis on water burst characteristics during united mining of multiple coal seams in Binchang mining area |
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| Abstract: | Aiming at the abnormal water inrush in working face of united mining of multiple coal seams in Binchang mining area, the relationship between gushing water and formation characteristics, geological structure and ground pressure were analyzed based on the characteristics of water inrush. The causes of abnormal water inrush were discussed from the aspects of water source, water-conducting channels and water inrush mechanism. The analysis shows that Luohe Formation has become the direct or indirect aquifer for coal mining under the influence of mining intensity and formation factors of Anding Formation; the formation with large dip generated by the fold structure is favorable for the development of water flowing fractures, and that is the direct cause for the formation of the characteristics of the dense water outlet section. Regional stratigraphy has conditions for producing the water in separated bed, and the special relationship between coal seam and mining sequence is the main reason for the huge peak value of water inrush from the working face. |
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