附加力和温度共同作用下井壁附加应变变化规律

Additional Strain Variation Law of Mine Shaft Lining under Joint Effect of Additional Force and Temperature

以华东地区姚桥煤矿老矿主井井壁安全监测系统的实测资料为基础,通过对实测附加应变、井壁温度及地表沉降结果进行综合对比分析,结合井壁受力特点,得出井壁附加应变变化规律。井壁附加应变受竖直附加力和温度共同作用,在数值上表现出正弦波动并逐渐积累的态势,具有明显的周期性和可预见性。

Based on the site measured information of the safety monitoring and measurement system for main shaft lining of a mine in East China,with the comprehensive comparison analysis on the results of the site additional strain shaft lining temperature and ground subsidence and in combined with the shaft lining stressed features,the shaft lining additional strain variation law was obtained.The shaft lining additional strain would have sine waves and would be in an accumulated state in numerical under the joint rol...