填土高度、跨径对盖板涵涵台结构的影响

本文针对盖板涵设计，讨论了填土高度、跨径对涵台结构的影响。结果表明：在一定范围内，填土高度越大，对结构受力越有利。但超过该范围，填土高度越大，对结构受力越不利。跨径大对涵台结构受力有利，但对盖板结构受力不利。

The Filling Height and Span Effect on the Slab Culvert Structure

In view of the slab culvert design, this article discusses the influence of fil ing height and span of culvert structure. The results show that within a certain range, the greater of the fil ing height, the bet er for the structure stress. But if over the range, the greater of the fil ing height, the worse to the structure stress. Large span is benefit for the culvert structure stress, but bad for the flat structure.