Study of Disaster Mitigation Selection in Different Forms of Flowing Sand Dune Areas of Yuli to Qiemo Highway
Wind and sand disasters threaten the desert highway from the construction period to the operation period,and the reasonable route selection of the desert highway can effectively reduce wind and sand disasters.To choose the route of the desert highway for disaster mitigation under the complex flowing dune topography,the morphology of flowing dunes along the desert highway from Yuli to Qiemo is deciphered by remote sensing images,and the different morphology of flowing dunes along the desert highway from Yuli to Qiemo is divided into three major types:horizontal dunes,vertical dunes,and multi-directional wind-activated dunes according to the morphology-causation method.Based on the study of the relationship between topography,dune movement,dune surface characteristics and disaster reduction trend of the three types of mobile dune areas,the key points of disaster reduction of the desert highway in the environment of the three types of mobile dune are put forward in the paper.The research results can provide some guidance and reference for disaster mitigation route selection of desert highway in flowing dune area in the future.
highway survey and route selectiondesert highwayflowing sand dunesremote sensing interpretationsand dune typesroute selection of disaster mitigation