离子型稀土原地浸矿采场山体滑坡防控试验研究

On landslide prevention and control of in-situ leaching stope of ion-adsorbed rare earth

针对离子型稀土原地浸矿开采采场滑坡易发频发问题,在某滑坡高危稀土矿区开展了滑坡防控试验研究,通过建立水位监测系统、防排水系统、现场监测系统、制定人工巡视制度、严控临界注液强度,以及实施优化注液参数和人工加固工程的策略组合,控制试验采场硫铵临界注液量765 m3/d,采用螺纹钢+混凝土灌浆抗滑桩并辅以钢丝绳联结的人工加固工程,实现了试验采场的安全回采,具有较强的现实意义和良好的经济社会效益.

In order to solve stope landslide prone problem in ion-type rare earth mines, a field experiment in a landslide prone region was conducted to find out the prevention and control measures. Through the establishment of water level monitoring system, waterproof and drainage system and field monitoring system, combining with manual inspection, critical injection strength, injection parameters optimization and artificial reinforcement strategy with strict control thiamine injection ceiling at 765 m3/d and steel concrete grouting plus anti slide pile with steel wire connection of artificial reinforcement engineering, safety production of experiment stope and effective recovery of rare earth resources were obtained. The experiment proves that the research result and solutions to landside have strong practical significance and good economic-social benefits.