The stability evaluation and analysis of grouting treatment effect on the steel plant foundation in underlying mined-out area

On the basis of engineering geological analysis method, the stability of a certain steel plant foundation in the underlying mined-out area is evaluated. In accordance with the loading concentration of steel plant structures and their importance, a classification is carried out and different grouting treatment measures are used accordingly. Afterwards, XB-160-foot vibrating wire strain gauges and XBHV-10-foot steel settlement instruments are applied to carry out internal monitoring of the cover rock over grouting treatment mined-out area. By the statistical analysis of drilling orifice strain and monitoring data of deep subsidence, the result shows that the above rock in mined-out areas is stable basically, and the desired treatment effect is reached. It pays similar engineering practice to learn this.