TREATMENT SCHEME FOR LANDSLIDE IN KUANCHENG COUNTY OF HEBEI PROVINCE

In Kuan-cheng county of Hebei province,a railway to be built will cut across an ancient landslide mass of about 77104m3,and in the form of a cutting channel in front of the ancient landslide mass. Excavation of the cutt slope in the mass could lead to re-activity of the ancient landslide. To ensure the safety of railway operation in the future,a complete treatment is necessary.Based on geological survey in the field and experiment,the stability of the ancient landslide mass is calculated along the existing and ancient sliding surface with different working conditions and combining with specific characteristics of the revival landslide.Two treatment schemes were put forward.They are the anti-slide pile scheme and the cleanup+earthwork+anti-slide pile+retaining wall between piles scheme.Through an integrated comparison,the second scheme was adopted and completed.Works include cleanup earthwork,anti-slide piles,drainage system,and slope protection.