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管道覆土对刚性管作用的内力受铺设管基角β的影响,不同管基角其内力系数不同,同时管基角相同时,内力系数又是土压作用线与管道横截面纵轴线夹角θ的函数,即管周不同位置其受力不同。采用一般管基角时,计算管壁内力系数的公式可采用通式方法直接代入相关值即可导出,而零度管基角是一个特殊角,不能采用通式,只能根据其受力特点,用数学分析方法来推导。本文即对零度管基角时的情况作相关的论述和分析。
The internal force acting on the rigid pipe by pipe covering is affected by the base angle β of the pipe laying. The internal force coefficients are different for different pipe base angles. At the same time, the internal force coefficient is the angle θ between the line of action of the earth pressure and the longitudinal axis of the pipe cross-section The function, that is, different positions of the tube weeks of its force. When the general tube base angle is used, the formula for calculating the internal force coefficient of the tube wall can be directly substituted into the relevant value to derive it by the general method, while the zero tube base angle is a special angle and can not be generalized, Mathematical analysis to derive. In this paper, we will discuss and analyze the situation of zero degree pipe base angle.