摘要
为了查明影响厚冲积松散含水层下安全开采的隐蔽致灾地质因素,以柴里煤矿为例,对一水平六采区北部薄基岩区进行井上下地质及水文地质补充勘探,根据基岩赋存分布情况,实行分区域限厚开采方案。由于限厚开采工作面的上部资源不能全部采出,导致采空区遗煤。通过详细分析复杂地质条件下基岩变薄区厚煤层开采溃水(砂)、自然发火、顶板等灾害风险特点,阐述了隐蔽致灾因素防治的关键技术和具体应用,开采实践验证了这些治理技术的安全保障作用。
In order to find out the hidden disaster-causing geological factors affecting the safe mining under the thick alluvial loose aquifer,taking Chaili Coal Mine as an example,surface and underground supplementary geological and hydrogeological exploration in the thin bedrock area in the north of the sixth mining area of the first level is carried out.According to the occurrence and distribution of the bedrock,the regional thickness-limited mining scheme is adopted.Due to the fact that the upper resources of the thickness-limited mining face cannot be fully mined,the coal is remained in the goaf.Through a detailed analysis of the characteristics of disaster risk such as water(sand) burst,spontaneous combustion and roof in thick coal seam mining in the bedrock thinning area under complex geological conditions,this paper expounds the research and specific application of key technologies for hidden hazard factors prevention and control,and the mining practice has verified the safety guarantee effect of these control technologies.
作者
郭强
邓新刚
罗鹏
田波
杨明
GUO Qiang;DENG Xingang;LUO Peng;TIAN Bo;YANG Ming(Geological Survey Department of Zaozhuang Mining Group Co.,Ltd.,Zaozhuang,Shandong 277000,China;Chaili Coal Mine,Zaozhuang Mining Group Co.,Ltd.,Zaozhuang,Shandong 277519,China;Shandong Energy Group Co.,Ltd.,Jinan,Shandong 250101,China)
出处
《中国煤炭》
2022年第S02期28-34,共7页
China Coal
关键词
厚冲积松散含水层
隐蔽致灾因素
薄基岩
水害防治
防灭火
thick alluvial loose aquifer
hidden disaster-causing factors
thin bedrock
water hazard prevention and control
fire prevention and extinguishing
