摘要
通过相似材料模拟试验 ,研究了放顶煤开采条件下的岩层断裂角等岩层移动参数 ,并应用岩石力学理论 ,对采动过程中覆岩离层位置进行了分析和研究 ,初步找出了采动过程中离层位置的变化规律。提出了计算离层位置的基本公式 ,为在离层注浆过程中判断离层位置提供了理论依据和计算公式。
This paper studise of rock stratum movement parameters such as rock breaking angle under caving mining condition throngh model test of similar material and analyzes and studies discrete layers in mining by means of rock mechanics,finding out changing rule of discrete layers in mining preliminarily.This paper gives basic formula in determing discrete layers and provides theoretical basis and formula for determing discrete laysrs during grouting.
出处
《煤》
2000年第1期33-34,44,共3页
Coal
