Characteristic Analysis and Treatment Scheme of Highway Slope Diseases
In order to ensure the safety of highway slopes during operation and reduce safety accidents,the investigation procedures and key points of highway slope diseases were analyzed.Taking the upper slope and lower embankment along the Yunzhan Expressway as the research objects,a detailed investigation was conducted on the slope diseases along the line,and it was found that there were rock-fall,collapse,landslide,slope gully and other diseases on the slopes.At the same time,the spatiotemporal distribution characteristics and disease features of slope diseases were analyzed.For rockfall and collapse diseases,SNS active protective nets and protective walls have been choosed for protection.M7.5 mortar rubble is choosed for the protection of slope and gully diseases;For landslide diseases,which have the greatest impact on highway operation safety,it is proposed to use prestressed anchor cable frame beams for treatment,and a calculation model is established to calculate the stability coefficient of the slope under different spacing of prestressed anchor ca-bles.It is found that the slope stability coefficient is the highest and the reinforcement effect is the best when the spacing of anchor ca-bles is 2.0 m.This indicates that the prestressed anchor cable reinforcement scheme for landslides is feasible.
万方数据
维普
