煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2009年
4期
74-77
,共4页
采宽%破坏深度%数值模拟
採寬%破壞深度%數值模擬
채관%파배심도%수치모의
mining width%failure height%numerical simulation
底板采动破坏带深度的确定是进行带压开采的重要内容.随着综采工作面尺寸的不断增大,传统的底板采动破坏带深度统计公式法和理论公式法已不能够满足生产实践要求.以某矿11号煤层开采为工程背景,运用二维有限差分计算机软件(F-RFPA2D分析系统软件)模拟分析工作面采宽与底板采动破坏带深度之间的关系,并确定工作面临界采宽.
底闆採動破壞帶深度的確定是進行帶壓開採的重要內容.隨著綜採工作麵呎吋的不斷增大,傳統的底闆採動破壞帶深度統計公式法和理論公式法已不能夠滿足生產實踐要求.以某礦11號煤層開採為工程揹景,運用二維有限差分計算機軟件(F-RFPA2D分析繫統軟件)模擬分析工作麵採寬與底闆採動破壞帶深度之間的關繫,併確定工作麵臨界採寬.
저판채동파배대심도적학정시진행대압개채적중요내용.수착종채공작면척촌적불단증대,전통적저판채동파배대심도통계공식법화이론공식법이불능구만족생산실천요구.이모광11호매층개채위공정배경,운용이유유한차분계산궤연건(F-RFPA2D분석계통연건)모의분석공작면채관여저판채동파배대심도지간적관계,병학정공작면림계채관.
Floor failure height is the key to mining with water pressure. With mining width increasing, traditional statistical formula and theoretical formula of floor failure height couldn't meet requirement of production practice. Taking mining 11th Coal Seam of a colliery as an example, this paper applied 2D finite difference software--F-RFPA2D to analyzing relationship of mining width and floor failure height and obtained critical mining width.