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《金属矿山》1980年第5期曾刊有梁伟民同志的“关子计算三心圆形拱的通用式”一文,文中对矿山巷道三心圆形拱大、小半径等提出了计算的通用公式。我单位在井巷工程实践中,总结了三心圆形拱大,小半径等计算的通用公式,比较简便好记,故也提出供交流。我们根据解算代数联立方程式的原理,推导出计算大、小半径的通用式是
“Metal Mines” No. 5, 1980, there have been published by Comrade Liang Weimin, “Guan Zi calculation three heart circular arch general,” a text, the mine roadway three heart circular arch large, small radius and other proposed general formula. My unit in the shaft engineering practice, summed up the three heart circular arch large, small radius calculation of the general formula, simple and easy to remember, it is also proposed for the exchange. According to the principle of solving algebraic simultaneous equations, we deduce that the general formula for calculating large and small radii is