摘要
运用经验估算法、威尔逊估算法及经验公式等对综采工作面的支护阻力进行初步计算。在此基础上,通过FLAC3D建立工作面模型,模拟不同支护强度下的顶板下沉量,从而得出"P-△L"曲线,以此确定工作面支护阻力。
Based on the preliminary calculation of support resistance at fully-mechanized working face by the experiential estimating method,Wilson estimating method and empirical formula etc.,the paper determines the support resistance by establishing working face model with FLAC3D to simulate the roof subsidence in different support density and educe the curve ＂P-△L＂.
出处
《江西煤炭科技》
2017年第4期32-36,共5页
Jiangxi Coal Science & Technology
关键词
支护强度
数值模拟
顶板下沉量
support density
numerical simulation
roof subsidence
