摘要
本文从巷道受力角度出发,利用模糊数学方法和国外新近提出的应力和均匀化理论,在巷道断面形状的优化比较方面,首次提出一种根据巷道周围平均应力集中系数MSCF来选择最佳断面形状的定量方法——模糊决策方法。应用此方法,作者结合某矿山深部地质、应力条件,确定该矿深部开采巷道的最佳形状为准椭圆形,为矿山深部开采设计提出了建议。
In this paper,the author proposes a fuzzy-decision method in selection of the optimun section shape of drift. It basses on fuzzy mathmatics and the theory of mean stress concentration proposed recently by the scholar in Delaware university. Using this method, the author takes into account of the geological and stress conditions in a phosphrous mine,and points out that the optimum section shape in the deeper levels of the mine should be quasi-ellipsoid. This paper has a very important value for reference in the design of mine and underground en- gineering.
