Construction method for pile foundation engineering trestle

The invention discloses a pile foundation engineering trestle construction method, which belongs to the technical field of bridge construction, and comprises the following steps: step 1, preparation before construction, step 2, pile foundation positioning, step 3, primary vibration sinking construction of steel pipe piles, step 4, secondary vibration sinking construction of the steel pipe piles, step 5, bearing beam and parallel connection welding, step 6, bailey beam construction, and step 7, bridge deck slab installation. 8, the steps 2-7 are repeated in sequence; 9, bridge deck accessory engineering construction is carried out; the secondary steel pipe piles are additionally arranged on the sides, back to water impact, of the main steel pipe piles, and the prefabricated main steel pipe piles are welded through the cross bridging, so that the safety of the whole trestle is guaranteed; in addition, all assemblies of the trestle are prefabricated and assembled in advance according to different specifications,