铁路保护煤柱设计的垂直断面法修正

Correction of Vertical Section Method of Protective Coal-pillar for Railway

参照垂直断面法原理,分析应用垂直断面法设计铁路保护煤柱时的误差,并提出改进方案。为避免通过剖面图求保护煤柱范围时产生的作图误差和步骤复杂问题,将改进的垂直断面法求铁路保护煤柱的方案从图解法转换为数学解析法。通过实例验证,此数学解析法是高效可行的。

Referring to the principle of vertical section method, the error that produce in the process of using the vertical cross-section method to design the protection coal pillar for railway is analyzed. Then the correction scheme for the vertical cross-section method to design the railway protection coal pillar is proposed. To avoid mapping errors and step-outs complex problems from the design process of the protective pillar scope by the vertical cross-section method, the improved vertical section method which is used to solve with protection coal pillar for railway converts from a vertical cross section graphical method into a mathematical analysis method. Through the application of the mathematical analysis, it is found that the method is efficient and feasible.