水工闸门矩形轨道门槽边距的计算

Calculation of Distance between Rectangular Track and Edge of Gate Groove

将闸门轨道后的支承混凝土简化为1/4无限体.利用弹性力学半无限体的解答,推导出1/4无限体在均布力作用下的近似解.根据混凝土内的最大拉应力小于其抗拉强度的准则,利用回归分析的方法得到满足混凝土强度条件的门槽边距计算公式.文中给出了适合实际工程应用,形式简单的边距计算公式.

Supposing the support concrete of the sluice gate track to be a quarter infinite body loaded by a uniform force, its approximate solution is obtained by elastic mechanical method. According to the criterion that the maximum tensile stress in the quarter infinite body must be less than the concrete tensile strength, a formula is abtained for calculating the distance between the track and the edge of gate groove by regression analysis, and the formula is further simplified for engineering application.