通过改变管桩桩径、改变管桩的收锤标准、提高桩身混凝土强度等技术措施 ,可以达到在不宜应用预应力管桩的工程地质条件下施工预应力管桩的目的 By changing the pile diameter of the pipe, changing the standard of receiving the pipe, and increasing the strength of the concrete, etc., the purpose of constructing the prestressed pipe pile under the engineering geological conditions that the prestressed pipe pile is not suitable should be achieved