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煤矿的主要运输巷道和峒室多用整体刚性支架支护,支架与围岩形成一个结构体系而共同承受原岩应力作用。此外,巷道支架是在主动压力和被动压力同时作用下进行工作的,这种理论已应用于地下衬砌结构的设计计算。在电子计算机技术发展的今天,使用矩阵力法和矩阵位移法进行支架结构分析已很广泛。笔者根据矩阵方法分析地下结构的运算公式用BASIC语言编写了巷道支架矩阵力法分析源程序,该程序曾在BC3-80机通过并对半圆拱形整体刚性支架进行了内力分析,现简介如下。
The main transport tunnels and mines in coal mines are mostly supported by rigid brackets. The brackets and the surrounding rock form a structural system and jointly bear the role of original rock stress. In addition, the tunnel support works under the action of active pressure and passive pressure. This theory has been applied to the design calculation of underground lining structure. Today, with the development of computer technology, the analysis of scaffold structure using matrix force method and matrix displacement method is very extensive. The author analyzes the calculation formula of the underground structure according to the matrix method. The source code of the roadway support matrix method is compiled by BASIC language. The program passed the BC3-80 machine and analyzed the internal force of the semi-circular arch overall rigid bracket.