徐画,陈建平,张权平,王天乐

• 1:中国地质大学(北京)地球科学与资源学院
• 2:北京市国土资源信息研究开发重点实验室
• 3:广西二轻技师学院

摘要(Abstract)：

针对在隐患地质灾害体信息采集过程中,大多数危岩体处于高陡边坡顶部,传统测量方式难以直接对其进行测量的难题,该文利用无人机摄影测量技术获取高精度遥感影像,基于点云数据构建三维点云模型和空间实体模型,生成研究区高分辨率栅格影像,提取危岩体空间地理信息,数字化量测危岩体结构面产状。实验表明,获取的高精度栅格影像,弥补了研究区高分辨率遥感影像的匮乏。构建的危岩体三维空间实体模型,模型内、外精度符合岩体结构面信息解译精度要求,可以多角度地观测危岩体地质灾害及其所处环境的真实场景,量测危岩体主要参数,提取危岩体空间地理信息。基于最小二乘法平面拟合算法处理三维点云模型,准确计算出结构面产状,为地质灾害防治部门提供基础数据。

关键词(KeyWords)： 无人机;点云数据;高陡危岩体;三维空间实体模型;结构面产状

Abstract:

Keywords:

基金项目(Foundation): 科技部深地资源勘查开采专项(2017YFC0601502)

作者(Author): 徐画,陈建平,张权平,王天乐

DOI: 10.16251/j.cnki.1009-2307.2021.07.019

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