Comprehensive Treatment for Caotian Mountian Landslide in Yongtaiwen Expressway Cangnan Section and Effect Analysis

A comprehensive treatment has been made for Caotian Mountain landslide in Yongtaiwen(Ningbo-Taizhou-Wenzhou) Expressway Cangnan Section(K79+310～K79+550) by means of anti-slide piles+pre-stress anchor cables,pre-stress anchor cables,reinforcement concrete grate girders for supporting and retaining combining with some project measures such as load reduction,drainage and counter pressure,etc.,and complete observation data have been obtained via on-site monitoring.These fulfill the functions of instructing the landslide treatment,effectively guaranteeing safety during project construction and operation,and achieving the anticipative effect.