基于高分辨率遥感技术的辽宁大孤山铁矿排土场滑坡灾害评价  

Evaluation of landslide disaster at Dagushan iron mine dump in Liaoning based on high resolution remote sensing technology

作　　者：郝大海 姚玉增[1] 关长庆[1] 付建飞[1] HAO Da-hai;YAO Yu-zeng;GUAN Chang-qing;FU Jian-fei(School of Resources and Civil Engineering,Northeastern University,Shenyang 110004,China)

机构地区：[1]东北大学资源与土木工程学院,沈阳110004

出　　处：《世界地质》2020年第4期937-945,共9页World Geology

基　　金：“十三五”国家重点研发计划项目(2016YFC0801603)。

摘　　要：采用2010—2014年间WorldView、QuickBird和Geo Eye三种亚米级高分辨率卫星影像共5幅,以大孤山铁矿排土场南侧于2013年发生的小型滑坡为例,获取了滑坡体面积、滑移距离、滑坡前后高程变化和滑坡体积等参数,利用该方法对排土场北侧于2014年发生的大型滑坡进行了研究。结果表明,排土场南侧滑坡面积约15 000 m^2,高差约10 m,体积约为61 000 m^3;北侧滑坡面积约为315 000 m^2,宽约504 m,滑坡体由南向北滑移约295 m,两侧延伸约208 m,该遥感评价结果与实际滑坡情况相符合,表明高分辨率遥感技术可为矿山排土场滑坡灾害的监测及灾情评估等提供基础资料。Using five sub-meter high-resolution satellite images of WorldView,QuickBird and GeoEye from 2010 to 2014,taking the small landslide on the southern side of Dagushan iron mine dump in 2013 as an example,the parameters of landslide body area,slip distance,elevation variation before and after landslide and landslide volume were obtained.This method was then used to study the large-scale landslide occurred on the northern side of the dump in 2014.The results show that the landslide area on the southern side of the dump is about 15000 m 2,the height difference is about 10 m,and the volume is about 61000 m 3,whereas the landslide area on the northern side is about 315000 m 2 and the width is about 504 m.The landslide body slides about 295 m from south to north,with extension of about 208 m on both sides.The remote sensing evaluation result is consistent with the actual landslide situation,indicating that the high-resolution remote sensing technology can provide basic data for the monitoring and disaster assessment of landslide disasters in mine dumps.

关 键 词：排土场滑坡 遥感技术 动态监测 大孤山铁矿 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]