铁路保护煤柱设计精度分析

Precision Analysis of Protective Coal-pillar for Railway

铁路保护煤柱影响铁路安全和煤炭开采。根据开采沉陷理论分析了垂线法的设计原理和计算公式。依据微分原理进行误差分析,推导绝对误差公式,并将误差分析结论应用于实例计算,认为煤层倾角和断层构造是影响设计精度的主要因素。在误差分析基础之上建立断层修正公式,提出降低设计误差的方法,有利于提高铁路等延伸形构筑物保护煤柱设计的精度。

Protective coal-pillar design direct influence railway safety and coal mining Theory and calculation formula of perpendicular method was analyzed based on mining subsidence theory Error formula was deduced with differentiation method and applied in calculation of an example It was believed that coal-seam angle and fault tectonic were main factors influencing pillar design precision An amended formula for fault was set up on the basis of error analysis and the method for reducing design error was put forward to improve coal-pillar design precision for protecting railway and other structures.