基于Phase2的不同配比充填体厚度的数值模拟研究

在充填体作用机理，稳定性分析与监测，爆破地震效应，静动态特性及损伤理论等方面的研究基础上，依托安庆铜矿高阶段大直径深孔采矿法第一步骤采场的充填现状，采用Phase2软件建立了多种数值分析模型对不同灰砂比充填体厚度的充填效果进行数值模拟研究，并进行了多方案技术经济对比分析。研究结果表明:灰砂比为1∶4，1∶8，1∶10对应充填体厚度分别为10，24，22 m时，为最优方案。该充填体厚度可为矿山采场充填配比设计、充填管理及充填质量提供技术参考。

Numerical simulation study on thickness of filling body with different ratios based on Phase2

Based on the research about the action mechanism of filling body, the analysis and monitoring of stability, the blasting seismic effect, the static and dynamic characteristics and damage theory, and other aspects, relying on the current filling situation of the 1st step stope using the high bench large diameter deep hole mining method in Anqing copper mine, multiple numerical analysis models were established by using Phase2 software, and the numerical simulation study on the filling effect under different cement-sand ratios and thicknesses of filling body were carried out, then the technical and economic contrast analysis of multiple schemes were conducted. The results showed that the optimum scheme was when the cement-sand ratio was 1:4, 1:8 and 1:10, with the corresponding thickness of filling body was 10 m, 24 m and 22 m respectively. The results can provide technical reference for the design of filling ratio, filling management and filling quality of mine stope.