滑坡隐患类型与对应识别方法

被引:44
|
作者
许强
陆会燕
李为乐
董秀军
郭晨
机构
[1] 不详
[2] 成都理工大学地质灾害防治与地质环境保护国家重点实验室
[3] 不详
基金
国家创新研究群体科学基金;
关键词
滑坡隐患类型; 综合遥感技术; 早期识别; 三查体系; InSAR; LiDAR;
D O I
10.13203/j.whugis20210618
中图分类号
P642.22 [滑坡]; P237 [测绘遥感技术];
学科分类号
0837 ; 1404 ;
摘要
基于“三查”体系的滑坡隐患综合遥感识别工作已在全国范围推广应用并取得一定成效,但随着工作的推进,也暴露出一些亟待解决的问题,比如隐患究竟如何定义、有哪些类型、有何针对性的识别技术和方法,以及下一步工作重点是什么等。总结大量实践案例,进一步明确了滑坡隐患的定义,并将滑坡隐患分为正在变形区、历史变形破坏区和潜在不稳定斜坡3类,提出了针对不同类型滑坡隐患的识别技术和方法。正在变形区主要利用光学遥感和合成孔径雷达干涉测量(interferometric synthetic aperture radar,InSAR)技术相结合进行识别,历史变形破坏区可利用光学遥感和机载激光雷达技术(light detection and ranging,LiDAR)进行识别,而潜在不稳定斜坡靠遥感和传统调查手段很难识别,需大力发展航空-半航空物探技术,快速查明斜坡地下结构,尤其是基覆界面空间展布和地下水状况,通过稳定性的量化分析来圈定危险区域和具体部位。
引用
收藏
页码:377 / 387
页数:11
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