Concrete was poured in separately from mid-span of arch slab to the supports and then from the supports to the top chord of the arch chord so as to balance the pouring load.

分两组由拱板下弦跨中同时向拱板支座浇筑混凝土，然后从拱板支座连续沿拱板上弦向中间合龙，使浇筑荷载相对均衡。

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When the width is very close to or much greater than the span of slab arch bridge, it is called Super-wide slab arch bridge.

当板拱桥的宽度与跨度接近，甚至其宽度大于跨度，这类板拱桥称为宽体板拱桥。

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A study on relationship between the pressure and slab span of retaining wall in horizontal unloading arch was carried out.

就水平卸荷拱内挡土墙上压力与板跨之间的关系进行了研究，结果发现为了充分利用土体自承能力(水平卸荷拱)，板跨不宜过大。

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