Study on geological disaster characteristics and prevention measures of debris landslide in Yixing area of Jiangsu
Aiming at the typical geological disasters of debris landslide in Yixing area,Jiangsu Province,the basic characteristics of debris landslide are analyzed,and the reliability of the prevention measures are verified through some examples.The results show that the debris landslides in Yixing area are mainly occurred in the pied-mont gentle slope area of southern mountains.The gradient is below 15° of natural slope.The landslide body has the dual structure characteristics of upper soil and lower rock.The landslide is a retrogressive landslide with retru-sive and progressive general deformation failure which shows as topography reform and rainfall induction.The axial horizontal distance of the landslide body is 10.0 to 12.0 times of the altitude difference of the cutting slope.Through comprehensive measures such as repairing slope surface,anti-slide pile,backfilling and presser foot,re-taining wall,and drainage ditch,the potential hazard of landslide is eliminated,the horizontal displacement and vertical displacement of the slope converges to a fixed value,and the slope is stable.
debris landslidepiedmont gentle slope arearetrogressive landslidestabilityprevention measuresYixing area
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万方数据
