Abstract: Based on the theory of beam on elastic foundation, using underground frame structure calculation model, with the coordinate system, load constants of bottom plate, roof and side walls of box culvert below dam as well as shape constant of foundation beam were derived. Further, the internal force and displacement analysis method of dam culvert structure under non-uniform internal water pressure were given. All these results can be applied to the calculation of rectangular underground frame structure.

摘要： 据弹性地基梁理论，采用地下框架结构计算模型，按左手坐标系，分别推导坝下箱涵底板、顶板、侧墙载常数与地基梁形常数计算式，给出了坝下箱涵受非均匀内水压力作用的内力与变位解析法，且所获成果可应用于矩形地下框架结构计算。