某矿冻结外层井壁受力监测与分析

Monitor and Analysis of the Stress on Freezing Outer Shaft Wall

为检查某矿井冻结井筒外壁的安全性,对该矿井井筒外壁两个水平的冻结压力、钢筋应力以及混凝土应变进行了受力变形监测。通过对实测数据的理论分析,得出外层井壁应力应变均满足设计要求,井筒外壁安全可靠。

In order to ensure the safety of freezing outer shaft, freeze pressure, reinforcement stress and strain of con- crete on two level are monitored. By analysis the reason of the internal force of the shaft, getting the stress and strain accord with the design value, freezing shaft wall has been in a state of security