基于机载激光雷达的高陡边坡孤立危岩体识别方法
Identification method on isolated dangerous rock mass in high-steep slope based on airborne LiDAR
吴江昊 1姜涛1
作者信息
- 1. 广东省地质局河源地质调查中心(广东省河源地质灾害应急抢险技术中心),广东 河源 517001
- 折叠
摘要
基于机载激光雷达技术,针对广东省某地质灾害高发区域的高陡边坡开展孤立危岩体识别的研究.采用Brisight Ⅴ-Ⅳ移动激光雷达系统,通过点云获取、预处理、地面点提取、特征提取与分类、计算后壁面积与后壁倾角以及最大高差等技术,成功识别出16处可能的孤立危岩体对象及危岩体详细信息.通过与现场勘测结果的对比,验证了机载激光雷达技术在危岩体识别方面的有效性和可靠性,为地质灾害治理和危险性评估提供重要的数据支持和技术支撑,对广东省地质灾害精细调查项目的实施具有重要的参考意义.
Abstract
Based on the Airborne LiDAR Technology,the identification of isolated dangerous rock mass in the high-steep slope area has been studied in Chiguang Town,Guangdong Province in this paper.Using the Brisight VIV mobile LiDAR system,through such techniques as point cloud acquisition,preprocessing,ground point extraction,feature extraction and classification,and the calculation of back wall area,back wall dip angle and maximum height difference and so on,the 16 potential isolated and dangerous rock mass objects and detailed information of dangerous rock mass were successfully identified.The validity and reliability of the Airborne LiDAR Technology in dangerous rock mass identification are verified by comparing with the field survey results,which provides important data and technical support for geological disaster control and risk assessment.It is of great reference significance to the implementation of the fine geological hazard survey project in Guangdong Province.
关键词
机载激光雷达/高陡边坡/孤立危岩体识别Key words
airborne LiDAR/high-steep slope/identification of isolated dangerous rock mass引用本文复制引用
出版年
2024
NETL
NSTL
万方数据