Analysis Of Rockmass Displacement And Deformation Due To Deep Underground Mining Under Complicated Geological Conditions

This paper based on the Fuzzy Measure Model of analysis of the rock mass movementwhich proposed by professor Wenxiu Li for estimating rock mass displacement anddeformation due to deep underground mining under complicated geological conditions(softrock mass, joints, and there is fault, etc.) On the basis of the existing research results, the deepmining rock mass movement of the ZhangJiaWa mining area of LuZhong metallurgical minecompany is analyzed and predicted, in addition, for the model parameters involved in theproject, using Genetic Programming method to determine.The ZhangJiaWa mining area is located in the soft rock strata, mining depth is420~1100m, there are multiple faults in the mining area. Through calculating and analyzingsubsidence, tilt, curvature, horizontal movement and deformation in the four mining areas byusing Fuzzy Measure Model (Fuzzy Measures Model-FMM), the theoretical results are ingood agreement with the measured data. It shows that FMM is suitable for the analysis ofdeep mining rock mass movement problem under complicated geological conditions and theGenetic Programming method can be used to determine the parameters,. It can satisfy theprecision requirement in engineering and accord with the engineering practice, thus forming akind of new research methods-Fuzzy Measures Genetic Programming method (FMGPM).In addition, the results of FMGPM will also be compared with the results of classicalRandom Medium Theory in this paper, the results show that the FMGPM is better than theclassical methods.