Application of topography fast marching method in landslide  

作　　者：YANG Junjie SUN Hui WEI Chengwu JIANG Zhenghong LI Meng 

机构地区：[1]Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 611756,China [2]School of Resources and Environment,University of Electronic Science and Technology of China,Chengdu 611731,China [3]China Railway Academy Chengdu Company,Limited,Chengdu 610036,China

出　　处：《Global Geology》2021年第3期160-168,共9页世界地质（英文版）

基　　金：Supported by projects of National Natural Science Foundation of China(No.41804100);Fundamental Research Funds for the Central Universities(No.2682018CX36);China Postdoctoral Science Foundation(No.2020T130080);China Postdoctoral Science Foundation(No.2018M640910).

摘　　要：Geophysical exploration methods are important tools for landslide disaster assessment,landslide treatment scheme design,and landslide prevention engineering.Seismic exploration,as an important geophysical exploration method,plays an critical role in geological disaster evaluation.Traveltime is one of the most frequently used seismic attributes.Among many different traveltime calculation methods,the fast marching method(FMM)is featured for its advantages in high efficiency,high accuracy and strong stability.In this paper,the velocity models are established according to the real landslide models,and then the topography FMM is applied to these landslide models.The calculation results show that topography FMM outperforms in calculating the traveltime for landslides.

关 键 词：fast marching method seismic exploration traveltime calculation LANDSLIDE TOPOGRAPHY 

分 类 号：P642.22[天文地球—工程地质学]