动载作用下采场前支承压力分布特征研究  

Study about Distributive Characteristic of Front Abutment Pressure Under Action of Moving Loads

作　　者：李伟利[1] 张学会[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《煤炭技术》2010年第12期62-64,共3页Coal Technology

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.

关 键 词：弹性基础梁 移动载荷 支承压力 塑性区 动力学计算 

分 类 号：TD31[矿业工程—矿井建设]