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矿产资源开采后,地表或地下形成大范围的采空区。在地面或井下用矸石、粉煤灰、尾砂、矿渣等废弃物料或其组成的复合材料充填采空区,形成以充填体为主的采场围岩控制体系,可以提高矿井资源采出率、控制岩层运动及地表沉陷,是实现矿山绿色开采的理想途径和关键技术之一[1-5]。近年来,随着中国对环境保护重视程度的不断提高和可持续发展的强烈要求,越来越多的矿山开始采用充填开采技术[6]。但是,如何高效利用矿山废弃物的潜在
After the mining of mineral resources, a large area of gob is formed on the surface or underground. In the ground or downhole with gangue, fly ash, tailings, slag and other waste materials or their composites filling goaf, the formation of the main body to fill the surrounding rock control system can improve the mine recovery rate of resources , Controlling rock movement and surface subsidence is an ideal way and one of the key technologies for achieving green mining [1-5]. In recent years, more and more mines have started to adopt the technology of filling and extraction with the continuous improvement of environmental protection in China and the strong demand for sustainable development [6]. However, how to effectively use the potential of mine waste