Shandong Energy Group Corporation Limited Research Center of Rock Soil and Structure Engineering, Shandong
University

针对煤矿深部岩体断层滞后突水具有隐蔽性、滞后性及防治难度大等特点,结合王楼煤矿3采区13301工作面开采过程断层滞后突水治理工程,在水文地质和水源探查分析的基础上,研究了采动作用下断层滞后突水机理,研发了一种低成本水泥基注浆材料,能够保证工程突涌水治理需求,与普通水泥材料相比,节约了材料成本约60%。将新型水泥基注浆材料应用于断层滞后突水治理工程,结合注浆治理过程工作面涌水量变化及注浆效果关键评估技术,现场裂隙发育形成的导水通道被拦截,水力通道被阻断,有效控制了工作面涌水量,达到预期堵水效果。

The hysteretic water inrush from a deep rock fault in a coal mine would have the concealed, hysteretic, high difficult prevention and control features, in C ombination with the hysteretic water inrush control engineering occurred from the fault during the mining process of No. 13301 coal mining face in No.3 Mining Block of Wanglou Mine. Based on the analysis on the hydrogeologic and water source survey, the paper had a study on the hysteretic water inrush mechanism of the fault under the mining role. A low cost and effective cement base grouting material was researched and developed and could ensure the engineering control requirements of the mi ne water inrush. In comparison with the conventional cement material, the new cement base grouting material could save about 60% of the material cost. The new cem ent base grouting material could be applied to the hysteretic water inrush control engineering occurred from the fault. In combination with the water inrush variation of t he coal mining face and the key evaluation technology of the grouting effect during the grouting control process, the water flow channels occurred by the site cracking d evelopment were intercepted and the hydraulic channels were sealed. Thus the water inrush volume was effectively controlled and the expected water sealing effect was reached.