Steel pipe composite pile for abrasion environment and construction method

The invention discloses a steel pipe composite pile for an abrasion environment and a construction method. The specific construction method mainly comprises the steps of measuring and lofting, manufacturing and constructing a steel casing, arranging a slurry circulating system, drilling a hole by a reverse circulation rotary drill, manufacturing a pile foundation reinforcement cage, lowering and installing, installing a pile foundation post-grouting system, pouring pile foundation concrete, and performing pile foundation post-grouting construction. By the adoption of the method, the corrosion resistance of the pile foundation is enhanced, the horizontal bearing capacity of the pile top is improved, the surplus vertical bearing capacity of the pile foundation is saved, the investment of engineering materials is reduced, the engineering cost is reduced, and the construction efficiency of the bridge foundation is improved. 一种用于磨蚀环境的钢管复合桩及施工方法，其具体施工方法主要包括测量放样、钢护筒制作及施工、泥浆循环系统布设、反循环回旋钻钻进成孔、桩基钢筋笼制作及下放安装、桩基后压浆系统的安装、桩