沉积与特提斯地质2024，Vol.44Issue(3)：560-571,12.DOI:10.19826/j.cnki.1009-3850.2024.09001
基于"天-空-地-深"方法的山区城镇地质灾害隐患判识:以四川省喜德县重点乡镇为例
Identification of potential geohazards in mountainous towns based on"Space-Air-Ground-Underground"approach:A case study of key towns in Xide County,Sichuan Province
摘要
Abstract
In order to better meet the needs of geohazard identification in mountainous towns and effectively detect small-sized,medium-sized,and hidden geohazards,a case study was conducted in several typical towns in Xide County,southwest Sichuan.The study employed a comprehensive suite of techniques,including optical remote sensing,InSAR,LiDAR,detailed slope investigation,and high-density resistivity methods,to identify geohazards from various perspectives and levels of precision.The results show that these methods complement each other well and are effective in geohazard identification.A total of 80 occurrences of geohazards were identified,including 29 new identifications,along with 131 potential geohazard dangers.The differences in disaster-inducing factors in the study area constrain the effectiveness of different methods.Optical remote sensing proved more effective in areas characterized by strong structural deformation and hard rock formations.In contrast,unmanned aerial vehicle(UAV)photogrammetry,combined with detailed ground surveys and geophysical exploration,was more suitable for identifying geohazards in the red layer distribution areas of the Mishi wide gentle syncline.Airborne LiDAR high-definition 3D photography was particularly effective for identifying"dustpan-shaped"landslides and"oak leaf-shaped"debris flows,which are common on the slopes of key towns.The combination of easily collapsible and slidable engineering geological rock groups and dip-slope structures is the key to the formation of geohazards in the study area.Geophysical exploration targeting disaster-controlling structures is an important support for geohazard identification.关键词
遥感解译/地面调查/地球物理探测/地质灾害隐患识别/山区城镇Key words
remote sensing interpretation/ground survey/geophysical exploration/geohazard identification/mountainous towns分类
天文与地球科学引用本文复制引用
熊小辉,白永健,铁永波,高延超,徐伟,龚凌枫,王家柱,田凯,李鹏岳..基于"天-空-地-深"方法的山区城镇地质灾害隐患判识:以四川省喜德县重点乡镇为例[J].沉积与特提斯地质,2024,44(3):560-571,12.基金项目
云南省重点研发计划项目(202403AA08000) （202403AA08000）
中国地质调查局项目(DD20230435,DD20230541) （DD20230435,DD20230541）
