【摘要】 试用模糊数学的原理和方法,对52例慢性肝炎病变进行多层次多因素综合评价,结果与病理学家诊断相一致.为临床病理综合评价病变提供了简便、准确、合理全面的科学方法.更多还原

【Abstract】 The displacement of rock mass 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 mass mechanics. The prediction of displacement of rock mass and their surface effects is an important problem of the rock mass mechanics in the excavation activities especially the ore mining. It is difficult to calculate the accurate displacement of every point in a body of rock because of the complexity of the problem. In this paper, fuzzy mathematics models and the prediction methods based on fuzzy measures were applied to the analysis of rock mass deformations due to room-and-pillar mining in mountain areas.更多还原