深井特大箕斗装载硐室支护结构受力监测及分析

Analysis and Monitoring of Force on the Supporting Structure of Especially Dig Skip Loading Chamber in Deep Shaft

为了解决深井主井箕斗装载硐室断面尺寸大和埋深大的技术难题,首先对原支护结构设计进行了优化,即通过采用钢梁代替原钢筋混凝土平台,而在二侧墙相应位置设置小锚索来代替楼板对二侧墙的支撑作用,并且对优化后的钢筋混凝土山墙受力进行了受力监测,监测结果表明:竖向钢筋一直处于受拉状态;钢筋应力值远小于钢筋强度设计值。证明了优化方案是合理的,优化后的主井箕斗装载硐室支护结构是安全可靠的。

In order to solve the technical problem of the big section dimension and the great depth of main shaft skip loading chamber in deep shaft, at first the finite supporting structure was optimized.The steel beam was used to instead of the primary reinforced concrete platform, and the anchor was installed to instead of the sup-porting role of floor and two side wall on the corresponding position of two side wall, and the force of optimized reinforced concrete gable was monitored.The results showed that the vertical reinforced bars are born with the tress stress, the reinforced bar stress are less than design value of steel strength.The optimization scheme is rea-sonable.The optimized supporting structure of main shaft skip loading chamber is safe and reliable.