摘要
以西部某矿的地质及开采条件为背景,采用正交试验设计的方法,以顶煤破碎系数为指标、支架的支撑高度、控顶距和放煤步距为因素,对PFC2D模拟软件的模拟结果进行极差分析和方差分析。结果表明:各因素对顶煤放出率的敏感程度,其由强到弱的顺序为:支架的支撑高度>放煤步距>控顶距。
Based on the geological and mining conditions of a mine in the west, the method of orthogonal design is used to analyze the simulation results of PFC2 Dsimulation software. The results show that the sensitivity of each factor to the release rate of top coal is from strong to weak order.
出处
《煤炭技术》
CAS
北大核心
2016年第2期48-49,共2页
Coal Technology
关键词
大采高
PFC2D
正交试验
极差分析法
large mining height
PFC2D
normal test design
extremum difference analysis
