Survey,Identification,Monitoring and Early Warning of Railway Geological Disasters
Geological disasters pose a great threat to railway construction and safe operation,and the"space-air-ground"integrated comprehensive survey technology has effectively solved the problem of geological disaster survey and identification."Space-based"multi-source stereosat remote sensing technology realizes large-scale accurate identification of geological disasters in challenging mountain areas,and long time-series InSAR and high-precision GPS realize stability monitoring and analysis of high and steep bank slopes;"air-based"realistic large scene,airborne oblique photography and airborne LiDAR scanning technologies realize hidden geological disasters identification in high vegetation coverage areas;"ground-based"three-dimensional stereoscopic exploration prospecting obtains the structure,attributes and parameters of rock and soil masses;a risk assessment scheme for gully and mountain disaster chain is established to provide basis for reasonable site selection and engineering setting of construction projects.This paper introduces the methods,contents,technologies and models of monitoring and early warning for geological disasters,and looks forward to the development direction of monitoring and early warning technology.
challenging mountain areasgeological disasters"space-air-ground"comprehensive surveymountain disaster chainmonitoring and early warning
万方数据
维普
