水南路大皇后武鸣河大桥桩基的施工方案

The Construction Program for the Pile Foundation of Wuming River Bridge at Shuinan Road Dahuanghou County

针对目前高速公路的建设多采用了桥梁代替大填大挖的土石方路基,桩柱结构则更大量被应用。结合水南路大皇后武鸣河大桥水下桩基的两种施工方案的比较,实践证明,裸露岩层上大孔径深水桩基钢护筒浇完封底砼进行稳固后可以直接当作施工平台使用,具有施工方便,实用性强,达到施工稳定性的要求。

This paper aims at illustration of current express highway construction, which adopts bridges as substitutes for the roadbeds with heavy filling and excavation earthwork and uses a large number of pile and column structures Combined with the comparison between two construction programs for the underwater pile foundation of Wuming River Bridge at Shuinan Road Dahuanghou County, practices prove that deep water pile foundation with large opening on bare rock stratum can be directly used as construction platform after stabilized with full-closed end concrete casting It facilitates construction with strong practical use and can meet the demands of construction stability