Exploration and prevention measures of traction type rock landslide on Dahuichang Road in Beigong Town,Beijing
Dahuichang landslide site is located in the Xishan area of Beijing.The characteristics of the Dahuichang Road landslide were determined through on-site investigation,trenching,drilling,and geotechnical testing.The landslide range includes one main landslide and one associated landslide.The main landslide has an inverted V-shaped plane shape,and the associated sliding slope has a circular chair shaped plane shape.Its scale is small with a total area of 2,322 square meters and a total volume of approximately 4,644 cubic meters.The sliding surface is a plane formed along the underlying shale layer of the sliding body.Overall,the Dahu-ichang Road landslide is a small traction type shallow rock landslide that slides along the bedrock surface of the slope.The stability analysis of the landslide under three working conditions shows that the landslide is in a stable state under natural and seismic con-ditions.Landslides under continuous rainfall conditions may experience instability and damage.The treatment project adopted a comprehensive treatment plan of"cleaning the landslide accumulation body+Intercepting and drainage ditch+anchor rod lat-tice beam+gravity retaining wall".
highway landsliderocky slopelandslide surveylandslide control
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