Fuzzy mathematical method of protection and analysis for rock mass displacements and the natural slope failure due to underground mining under river valley
Li Wenxiu Mei Songhua
(Research Institute of geotechnical engineering , Hebei University, Baoding 071002 China)
Abstract：The rock mass displacements and deformations due to underground mining has often resulted in major disasters throughout the world, frequently inflicting heavy losses of life and damage to property. And these disasters have motivated the development of rock mechanics. The prediction of displacements and deformations of rock mass and their surface effects is an important problem of the rock mechanics in the excavation activities especially the phosphorus mining in mountain areas. Based on results of the statistical analysis of a large amount of measured data in geotechnical engineering, the fundamental fuzzy model of displacements and deformations of rock mass is established by using the theory of fuzzy measures. The theories of both two- and three-dimensional problems are developed and applied to the prediction of the rock mass displacements and deformations due to mining of phosphorus ore-deposit under river valley in mountain areas. 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 under river valley in mountain areas.
收稿日期: 2003-03-31
引用本文:
李文秀;梅松华. 河谷下开采岩体移动失稳预测的Fuzzy数学方法[J]. 岩石力学与工程学报, 2003, 22(S1): 2289-2293.
Li Wenxiu Mei Songhua . Fuzzy mathematical method of protection and analysis for rock mass displacements and the natural slope failure due to underground mining under river valley. , 2003, 22(S1): 2289-2293.
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2003, Vol. 22 
