Stability Evaluation of Northeast China Border Riverbank:A Case Study in Raohe Area of Ussuri River

In recent years,the bank collapse geological disaster of the boundary river,Wusuli River in northeast China occurs frequently.The serious riverbank erosion has great effect on production and living of the coastal residents.This work establishes a riverbank stability evaluation system by extracting data of the vegetation coverage,engineering lithological character,geomorphology,geology revetment structure types,profiles and bank collapse geological disaster by means of remote sensing data and geological map of the study area,combined with field survey work and GIS technology.The riverbank stability partition was produced with likelihood ratio method in the river banks of the Raohe County.Evaluation and validation of reliability and accuracy show that the results of the partition agree well with the actual situation.Based on a combination of multi-source geoscience data,this paper conducted riverbank stability with the likelihood ratio method.The method used in this paper will be useful for evaluating the geohazards of bank collapse.