The paper discusses the methods of the coefficient reduction in determining tunnel lining's external water pressure in the world.
论述了国内外计算隧道衬砌外水压力的折减系数法和渗流场计算方法。
2
The temperature of tunnel wall, coefficient of unsteady heat exchange and thickness of heat-adjusting layer at constant air temperature in a tunnel are calculated.
求算了巷道风温恒定时岩体壁面温度、岩体与空气的非稳态热交换系数和围岩调热圈厚度。
3
The paper deduces the theoretical derivation of figure coefficient of wind load in wing tunnel test, which can do help data processing of wing tunnel test.