earticle

영어

If the characteristics of seismic motion are explained in the earthquake-prone area, the effect of seismic motion on occurrence of shallow failure and land creeping can be interpreted, but the current stage is still in the process of reviewing the explanation of mechanism suggesting from the characteristics of spatial distribution even for shallow failure with a high incidence. Moreover, the sediment runout process from large-scale landslide deposits caused by earthquakes remains poorly understood. Therefore, in order to conduct countermeasures against sediment-related disasters caused by earthquakes, first of all, it is necessary to identify geological structures vulnerable to earthquakes and to clarify areas where shallow failure and land creeping do not occur even if geological features and magnitude of seismic motion are same. In addition, the slope changes due to influence of rainfall should be extracted the topographic changes before and after rainfall by monitoring the slope using a fixed camera, UAV-SfM survey and measuring the width of cracks, etc. around the period of rain in summer. In particular, more effective countermeasures should be established for the systematic control of large amounts of sediment produced by earthquake-induced slope failures.