矿井裂隙动水注浆堵水研究

以浆液的黏度变化和浆液在动水裂隙中的扩散形态及凝结固化机理为基础,对注浆封堵裂隙水技术进行分析,采用相似模拟、数值模拟进行研究,得到水颗粒沉积机理和浆液注入动水的压力场变化规律。结果表明,浆液在沉淀充填范围内根据浆液沉积充填浓度可分为可凝结固化区和不可凝结固化区;随着注浆速率增加,浆液稳定状态范围变大,发生沉积充填有效凝结范围变大;当动水速度增加时,浆液扩散范围逐渐减小,沉积充填范围也越来越小。

Research on Mine Fissure Water Plugging Water Grouting

Taking the slurry and slurry viscosity changes in hydrodynamic diffusion fracture morphology and condensation cure mechanism is based on the fracture water Grouting technology analysis,using similar simulation,numerical simulation studies to obtain water and slurry particle deposition mechanism dynamic variation of the pressure field injection water. The results show that precipitated slurry filling in the range can be divided into zones according to condense curable filling slurry concentration and deposition of non-condensable curing area;rate increases with grouting,slurry steady state range becomes larger,the effective condensation occurring sedimentary filling larger range;when increasing the speed of moving water,slurry diffusion range is reduced,the smaller the sedimentary filling range.