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基于岩石损伤的“应力(stress)-渗流(seepage)-损伤(damage)”理论,采用fish语言编程对FLAC3D软件计算过程中岩石力学参数进行优化,实现软件在计算过程中水对岩石的损伤作用。在此基础上,以大南湖一矿为背景,进行富水条件下的区段煤柱优化数值模拟,分析不同宽度煤柱下煤柱内部的应力演化特征及煤柱内部的损伤区域分布。
Based on the “stress-seepage-damage” theory of rock damage, the rock mechanics parameters in FLAC3D software are optimized by fish language programming, and the water-to-rock Damage effect. On the basis of this, taking the Danyanhu No.1 as background, the numerical simulation of section coal pillar under water-rich conditions is carried out. The stress evolution characteristics of coal pillar under different width coal pillar and the damage area distribution inside coal pillar are analyzed.