王国梁, 王飞, 王树勇,等.寺河煤矿大采高超宽工作面导水裂隙带发育规律研究[J].河南理工大学学报（自然科学版）,2025,44(5):82-90.

WANG G L, WANG F, WANG S Y,et al.Study on the development characteristics of the water-conducting fissure zone in large-height and ultra-wide working faces at Sihe Coal Mine[J].Journal of Henan Polytechnic University(Natural Science) ,2025,44(5):82-90.

寺河煤矿大采高超宽工作面导水裂隙带发育规律研究

王国梁1,2, 王飞3, 王树勇2, 程凤飞2, 杜锋4

1.太原理工大学 继续教育学院，山西 太原  030000；2.晋能控股装备制造集团有限公司寺河煤矿，山西 晋城  048000；3.山西晋煤集团技术研究院有限责任公司，山西 晋城  048000；4.河南理工大学 能源科学与工程学院，河南 焦作  454000

摘要: 目的 为了得到寺河煤矿大采高超宽工作面导水裂隙带发育规律，以寺河煤矿6306大采高超宽工作面为对象开展研究。  方法 利用并行电法观测采动前后煤层顶板岩层视电阻率变化规律，结合数值模拟结果得到导水裂隙带发育规律。  结果 结果表明：（1）采动前后煤层顶板岩层视电阻率变化明显，原始地层视电阻率为150~300 Ω·m，严重破坏地层视电阻率可达680 Ω·m，并行电法实测大采高超宽工作面开采垮落带高度为21.0 m，垮采比为3.5，导水裂隙带实测高度下限值为82.5 m，裂采比为13.8，未能在观测期间有效捕捉到导水裂隙带上限值；（2）数值计算得出大采高超宽工作面垮落带高度为21.9 m，工作面推进至300 m时，导水裂隙带发育至最大值，达到90.6 m，导水裂隙的最终形态符合“马鞍型”分布特征；（3）由于垮落带发育至最大值所需时间短，并行电法测试过程中，垮落带已充分发育，现场实测与数值计算结果接近；导水裂隙带发育至最高值至少需要1~2月，现场有效测试时间短，导致现场实测与数值计算结果偏差较大。  结论 寺河煤矿大采高超宽工作面导水裂隙带发育高度为82.5~90.6 m，导水裂隙的最终形态为“马鞍型”分布特征，研究结果对预防寺河煤矿顶板水害及科学抽采采空区瓦斯具有重要的指导意义。

关键词:导水裂隙带;超宽工作面;并行电法;视电阻率;垮落带

DOI:10.16186/j.cnki.1673-9787.2023110011

基金项目:国家自然科学基金资助项目（52274079，52174073）；河南省高校创新人才工程项目（24HASTIT021）

收稿日期:2023/11/08

修回日期:2024/03/08

出版日期:2025/07/23

Study on the development characteristics of the water-conducting fissure zone in large-height and ultra-wide working faces at Sihe Coal Mine

Wang Guoliang1,2, Wang Fei3, Wang Shuyong2, Cheng Fengfei2, Du Feng4

1.College of Continuing Education， Taiyuan University of Technology， Taiyuan  030000， Shanxi， China；2.Sihe Coal Mine of Jinneng Holding Equipment Manufacturing Group Co.， Ltd.， Jincheng  048000， Shanxi， China；3.Shanxi Jinmei Group Technology Research Institute Co.， Ltd.， Jincheng  048000， Shanxi， China；4.School of Energy Science and Engineering，Henan Polytechnic University， Jiaozuo  454000， Henan， China

Abstract: Objectives To investigate the development characteristics of the water-conducting fissure zone in large-height and ultra-wide working faces at Sihe Coal Mine， using the 6306 working face as the study subject.  Methods The variation in apparent resistivity of the roof rock strata before and after mining was measured using the parallel electrical method. Numerical simulations were also conducted to analyze the development characteristics of the water-conducting fissure zone.  Results （1） The apparent resistivity of the roof strata changed significantly due to mining. The original strata exhibited an apparent resistivity of 150~300 Ω·m， while severely damaged strata reached up to 680 Ω·m. Field measurements showed that the caving zone height was 21.0 m， with a caving ratio of 3.5. The lower limit of the water-conducting fissure zone was measured at 82.5 m， with a fissure ratio of 13.8. The upper limit was not captured during the observation period. （2） Numerical simulations indicated a caving zone height of 21.9 m. When the working face advanced to 300 m， the water-conducting fissure zone reached its maximum height of 90.6 m. The final morphology of the fissure zone exhibited a saddle-shaped distribution. （3） Since the caving zone develops rapidly， it had already fully formed during the monitoring period， resulting in good agreement between field measurements and numerical simulations. However， the water-conducting fissure zone requires at least 1~2 months to fully develop. Due to the short effective monitoring time， significant deviations existed between field measurements and simulation results. Conclusions The water-conducting fissure zone in the large-height and ultra-wide working faces at Sihe Coal Mine develops to a height of 82.5~90.6 m， with a final saddle-shaped morphology. The results provide important guidance for the prevention of roof water hazards and for the scientific extraction of gas from goafs.

Key words:water-conducting fissure zone;ultra-wide working surface;parallel electrical method;apparent resistivity;caving zone