Application of Precast Tubular Pile in Pile Foundation of Offshore Highway Bridge:Taking Fuqing G324 Xincuo Highway Pile-slab Bridge as an Example
Due to the advantages of high bearing capacity and fast construction speed,prefabricated pile piles is widely used in housing construction and other engineering foundations.However,it is rarely used in road bridges,which hinders its further development.Therefore,combined with the engineering example of the application of precast tubular pile in offshore highway bridge in Fujian Province,the selection,design,bearing capacity and construction points of the pile foundation were discussed.The results are as follows.Firstly,compared with cast-in-place piles,precast tubular pile has more advantages in bearing capacity,economy and construction.Secondly,in the offshore environment,measures such as increasing the thickness of the protective layer,improving the pile material,adopting the non-steam curing process,and optimizing the connection between piles can be considered to improve the durability of pipe piles.Thirdly,the calculation method of vertical bearing capacity of a single pile by proposed the planting method is feasible,and the calculation result is surplus.
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