无人机航测系统在滑坡应急中的应用

发布时间：2018-03-12 10:17

  本文选题：无人机　切入点：黑方台　出处：《测绘通报》2017年09期 　论文类型：期刊论文

【摘要】：2017年2月19日3:45左右,甘肃省永靖县黑方台罗家坡发生滑坡。针对滑坡灾害应急过程中对滑坡滑体厚度和体积精确计算的难题,本文采用无人机航测系统,获取滑坡前后的高精度DEM数据源,并结合现场调查,精确计算出滑坡堆积区厚度的分布情况。研究结果表明,罗家坡2#滑坡长525 m,总面积约5.65×104m2,滑坡体总体积约14.7×104m3,最大滑距为368 m,滑坡剪出口位于第四系上更新统冲积粉质黏土顶部,堆积区最大埋深8.35 m,位于滑坡滑舌的西南侧。根据DOM影像和现场调查,该滑坡危害对象以农田和水渠为主,无房屋受损和人员伤亡,本文通过引入无人机航测系统为滑坡应急抢险救灾提供了一种新的研究方向。
[Abstract]:At about 3:45 on February 19th 2017, a landslide occurred in Luojiapo, Heifangtai, Yongjing County, Gansu Province. Aiming at the difficulty of accurately calculating the thickness and volume of landslide slide body in the emergency process of landslide disaster, the UAV aerial survey system is used in this paper. The high precision DEM data source before and after landslide is obtained, and the distribution of the thickness of the landslide accumulation area is calculated accurately by combining with the field investigation. The results show that, Luojiapo 2# landslide is 525m long, with a total area of 5.65 脳 104m2.The total volume of the landslide is about 14.7 脳 104m3.The maximum slip distance is 368 m.The exit of the landslide is located at the top of the Quaternary Upper Pleistocene alluvial silty clay. The maximum buried depth of the accumulation area is 8.35 m, located in the southwestern side of the slippery tongue of the landslide. According to the DOM image and field investigation, the landslide is mainly caused by farmland and canals, and there are no house damage or casualties. In this paper, the introduction of UAV aerial survey system provides a new research direction for landslide emergency rescue and relief.
【作者单位】： 兰州大学资源环境学院;甘肃省科学院地质自然灾害防治研究所;兰州资源环境职业技术学院;
【基金】：甘肃省科学院青年基金(2013QN-13);甘肃省科学院应用研发项目(2014JK-04) 甘肃省青年基金(145RJYA314) 国家自然科学基金(41362014) 甘肃省科技厅民生计划项目(1209FCMA012)
【分类号】：P231;P642.22
，

本文编号：1601124