In September 2015, our company undertook Chongqing Qianjiang Apeng River Railway Bridge from 0# to 19# piers (including 13# auxiliary piers, 14# and 15# main bridge piers, 16# auxiliary piers with a diameter of 2800mm, (L=65~98m rock-socketed piles included) All bridge pier pile foundation construction tasks) This is the 15# main pier construction scene.