煤层底板灰岩水害复杂程度网格化定量分析方法  

Grid based quantitative analysis method for complexity of water damage in coal seam floor limestone

作　　者：王琦 郑士田 吴佩 李文江 Wang Qi;Zheng Shitian;Wu Pei;Li Wenjiang(School of Qilu Transportation,Shandong University,Jinan 250002,China;CCTEG Xi′an Research Institute,Xi′an 710077,China)

机构地区：[1]山东大学齐鲁交通学院,山东济南250002 [2]中煤科工西安研究院(集团)有限公司,陕西西安710077

出　　处：《能源与环保》2024年第6期1-6,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：陕西省自然科学基金一般项目(2024JC-YBQN-0335)。

摘　　要：为实现对工作面或采区范围的煤层底板灰岩承压水害复杂程度进行量化分析,以陈四楼煤矿2901和2903工作面为研究对象,采用地面多分支水平孔顺层探查岩溶裂隙及导水构造发育情况,选取断层迹线长度、钻孔漏失量、压水试验透水率3个关键工程地质参数,运用平面网格化和模糊数学方法,提出水害复杂程度评分计算方法,定量揭示了研究区内底板灰岩岩溶发育及含导水性分布规律,评分越高表明该区域突水危险性越大。研究成果可指导底板水害治理效果评价与验证,实现底板水害安全精准高效治理。In order to quantitatively analyze the complexity of pressurized water damage in coal seam floor limestone within the working face or mining area range,the No.2901 and No.2903 working faces of Chensilou Coal Mine were taken as the research objects.The development of karst fractures and containing water conducting structures was explored using multi branch horizontal holes on the ground layer by layer.Three key engineering geological parameters,including fault trace length,drilling leakage rate,and water pressure test permeability rate,were selected.Using planar grid and fuzzy mathematical methods,a scoring calculation method for the complexity of water damage was proposed,which quantitatively revealed the development of karst in the floor limestone and the distribution law of water conductivity in the study area.The higher the score,the greater the risk of water inrush in the area.The research results can guide the evaluation and verification of the effectiveness of floor water damage control,achieving safe,precise and efficient management.

关 键 词：煤层底板 灰岩含水层 水害危险性 含导水性 定量分析 

分 类 号：TD804[矿业工程—矿山开采]