露天转地下开采巷道变形监测及灰色预测

利用WRM-3型收敛计对大冶铁矿露天转地下挂帮矿开采的巷道进行了收敛监测,通过对监测结果的分析,确定了影响巷道收敛的因素。同时结合大冶铁矿的现场实际,给出了灰色模型在预测巷道变形趋势方面的应用,认为灰色预测方法在地下工程位移监测中是适用的。

Monitoring and Grey Prediction of Deformation of RockSurrounding Roadway during Transfer from Open-casting to Underground Mining

The convergence of drifts for mining the hanging wall ore was measured by use of Model WRM-3 convergence meter during transfer from open-casing to underground mining in Daye Iron Mine.On the basis of the measured results,the authors identified some factors affecting the convergence of drifts.In this paper,the principle of grey prediction and residue difference examination of its prediction effect is briefly introduced.Combining with the field practice of Daye Iron Mine,the application of grey models in the prediction of deformation trend is presented out.The authors consider that grey prediction is applicable in underground engineering.