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发明授权
CN101748744B 大型桥梁基础分离式钢围堰异步下沉施工方法 有权 转让

大型桥梁基础分离式钢围堰异步下沉施工方法
摘要：
本发明属桥梁基础围堰技术领域，特别涉及的是一种大型桥梁基础分离式钢围堰异步下沉施工方法。本发明的大型桥梁基础分离式钢围堰异步下沉施工方法，先下沉下游钢围堰后再下沉上游钢围堰，在上、下游钢围堰的内、外侧设置内侧定位导向装置和外侧定位导向装置。本发明的大型桥梁基础分离式钢围堰异步下沉施工方法施工简便、可靠，大幅度提高了分离式钢围堰的下沉就位精度，使大型桥梁基础施工采用分离式钢围堰下沉成为可行。
摘要（英）：

The invention belongs to the technical field of cofferdams of bridge bases, in particular to an asynchronous sinking construction method of a separated steel cofferdam of a large-scale bridge base. The asynchronous sinking construction method of the separated steel cofferdam of the large-scale bridge base comprises the following steps of: firstly, sinking a downstream steel cofferdam; then sinking an upstream steel cofferdam; and arranging an inner side positioning guide device and an outer side positioning guide device inside and outside the upstream steel cofferdam and the downstream steel cofferdam. The asynchronous sinking construction method of the separated steel cofferdam of the large-scale bridge base has simple, convenient and reliable construction, greatly improves sinking in-place accuracy of the separated steel coffer and enables the construction of the large-scale bridge base to feasibly adopt the sinking of the separated steel cofferdam.

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