山区陡崖地段磷矿开采岩体变形失稳分析

Analysis of rock mass deformations and natural slope failure due to underground phosphorus mining under the steep hills

采用Fuzzy测度理论 ,建立了山区磷矿开采岩体移动变形预计的数学模型并用于山体失稳预测分析。在实测资料分析基础上 ,给出了山区岩体变形破坏的极限值 ;并提出了安全技术措施。通过工程实例计算分析 ,理论预计结果与现场实测结果吻合 ;

Based on results of the statistical analysis of a large amount of measured data in mining engineering, the fuzzy model of displacement of rock mass is established by using the theory of fuzzy measures. The theoretical formulas are developed and applied to the prediction of the rock mass displacements and deformations due to mining of phosphorus ore deposit under the steep hills. The practical technological scheme applied to the safety in production is also proposed. The agreement of the theoretical results with the field measurements shows that our model is satisfactory and the formulae obtained are valid and thus can be effectively used for predicting the displacements and deformations and the natural slope failure due to mining of phosphorus ore deposit in mountain areas.