摘要
针对试验工作面的情况,以弹性基础连续梁为力学模型,从动力学的微分方程出发,研究了匀速移动的动载作用下弹性基础梁,系统研究了采场前支承压力分布规律及其主要影响因素,得出了支承压力的表达式。
Aimming at the mining condition of NO.12123 mining face,taking the continuous elastic base beam as a mechanical model,based on the dynamic differential equation,the calculating methods of the continuous elastic base beams under the action of moving loads with uniform speed are studied.The distributive law of front abutment pressure and main influence factors are systematically studied by analyzing theory.The front abutment pressure formula is obtained.
出处
《煤炭技术》
CAS
北大核心
2010年第12期62-64,共3页
Coal Technology
关键词
弹性基础梁
移动载荷
支承压力
塑性区
动力学计算
elastic base beam
moving loads
abutment pressure
plastic area
dynamic calculating
