Xinzhuang Coal Mine, Qingyang Xinzhuang Coal Industry Co., Ltd.
General Prospecting Institute of China National Administration of Coal Geology
Huaneng Coal Technology Research Co. , Ltd.

针对新庄矿井水文地质条件特别是矿井水的涌（突）水水源和机理认识不清，直接影响新庄煤矿的安全、高效、绿色开采这一问题，通过水质分析和计算导水裂隙带发育高度，判定新庄矿井8号煤层顶板涌（突）水水源；同时在含水层的厚度、单位涌水量、物探含水层富水异常区、钻孔消耗量、岩芯采取率、地层脆塑性比6个主控因素的含水层富水性分析和综放开采条件下冒裂安全性分析基础上，通过多结果叠合对首采区8号煤层顶板涌（突）水危险性进行评价。结果表明：矿井顶板涌（突）水水源为下白垩统志丹群洛河组砂岩孔隙−裂隙含水层和中侏罗统直罗组、延安组上、中部(煤8层顶板以上)砂岩复合承压含水层，其中下白垩统志丹群洛河组砂岩孔隙−裂隙含水层是主要致灾水源。首采区内8号煤层导水裂隙带发育高度均能沟通洛河组砂岩含水层，首采区全区域为冒裂危险区。8号煤层顶板涌（突）水危险区中Ⅰ区主要分布在首采区的北部及中西部，Ⅱ区主要分布在首采区的中部及中西部，Ⅲ区主要分布在首采区的中东部及南部，Ⅳ区主要分布在首采区的东部及南部。

The unclear understanding of the hydrogeological conditions of Xinzhuang Coal Mine, especially the water source and mechanism of mine water inrush, directly affects the safety, efficiency, and green mining of Xinzhuang Coal Mine.This time, through water quality analysis and calculation of the development height of the water conducting fracture zone, it is determined that the water source of the roof of the No.8 coal seam in Xinzhuang Coal Mine is water inrush; At the same time, based on the analysis of aquifer water abundance based on six main control factors: aquifer thickness, unit water inflow, geophysical exploration aquifer water abundance anomaly area, borehole consumption, core recovery rate, and formation brittleness plasticity ratio, and based on the safety analysis of caving under fully mechanized top coal caving mining conditions, the risk of water inrush from the roof of No. 8 coal seam in the first mining area was evaluated through multiple results superposition.The results show that the source of water inrush from the roof of the mine is the sandstone pore fissure aquifer of the Luohe Formation of the Lower Cretaceous Zhidan Group and the composite confined aquifer of the upper and middle sandstone of the Middle Jurassic Zhiluo Formation and Yan'an Formation (above the roof of the 8th coal seam). The sandstone pore fissure aquifer of the Luohe Formation of the Lower Cretaceous Zhidan Group is the main source of disaster.The development height of the water conducting fracture zone of the No. 8 coal seam in the first mining area can communicate with the sandstone aquifer of the Luohe Formation, and the entire area of the first mining area is a risk area of cracking.In the roof water inrush danger zone of Coal Seam 8, Zone I is mainly distributed in the north and central west of the first mining area, Zone II is mainly distributed in the middle and central west of the first mining area, Zone III is mainly distributed in the middle and south of the first mining area, and Zone IV is mainly distributed in the east and south of the first mining area.

华能集团总部科技资助项目（HNKJ20-H49）

马小勇，程振雨，崔俊峰，等. 宁正矿区新庄煤矿首采区侏罗系延安组8号煤层顶板涌（突）水危险性评价[J]. 煤炭科学技术，2023，51（S1）：298−309.

MA Xiaoyong，CHENG Zhenyu，CUI Junfeng，et al. Risk assessment of roof water inrush in No. 8 coal seam of Jurassic system Yan'an Formation in the first mining area of Xinzhuang Coal Mine in Ningzheng Mining Area[J]. Coal Science and Technology，2023，51（S1）：298−309.