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为掌握充填材料的力学性能以便更好地处理地下采空区、改善地区、保护环境,在综合考虑各种影响因素后进行了不同充填材料的正交试验.运用统计回归的方法分析了各因素对充填体性能的影响,得到了相关的拟合曲线和函数关系.试验结果显示:浓度为75%～77%时料浆流动性较好,形成的各配比充填体均匀性和力学性能稳定。通过一定时期的井下充填,采场顶板和上盘围岩垮落现象得到了控制,料浆管输和造浆性能好,管道磨损小,研究结果为矿山提高经济效益、社会效益及可持续发展提供了可行的技术依据.
In order to grasp the mechanical properties of filling materials in order to better deal with the underground goaf, improve the area and protect the environment, after orthogonal test of different filling materials, orthogonal test was carried out.Using statistical regression method to analyze the various factors The relationship between fitting curve and function is obtained.The results show that the fluidity of the slurry is good when the concentration is between 75% and 77%, and the uniformity and the mechanical property of the composite filling formed are stable . Through the downhole filling in a certain period, the caving of rock mass around the roof and the hanging wall of the stope was controlled. The slurry pipe transportation and slurrying performance was good and the pipe wear was small. The research results showed that the mine can enhance the economic, social and sustainable development Provided a viable technical basis.