The present invention proposes a foundation structure for a trestle anchor
pier, comprising: four steel
pipe piles and two auxiliary piles, the four steel
pipe piles are distributed in a
rectangular array, the lower ends of the steel
pipe piles are anchored in the stratum, the tops of the left and right adjacent steel pipe piles are connected with
pile top beams, and the
pile top beams are provided with Bailey main beams;
diagonal rods and parallel joints are provided between the front and rear adjacent steel pipe piles; two auxiliary piles are vertically arranged on the outer sides of the left and right pairs of steel pipe piles, respectively, and the lower ends thereof are anchored in the stratum, and
diagonal rods and parallel joints are provided between each auxiliary
pile and the two steel pipe piles. The present invention also proposes a construction method for a foundation structure for a trestle anchor
pier. The foundation structure for the trestle anchor
pier of the present invention connects the steel pipe piles and the auxiliary piles from a hexagonal contact structure, and is connected to the rock stratum as a whole through an anchoring
system. Although the structure is simple, it can solve the stability problem of the trestle in
deep water, bare rock, and rapids areas.