无人机近景测量技术在高陡边坡地质调查中的应用

Application of UAV close range measurement technology in geological survey of high and steep slope

在高山峡谷区对高陡边坡进行地质调查一直是地质工作者面临的难题。基于无人机倾斜摄影技术,采用近景摄影测量方法对高陡边坡进行三维实景建模,获取边坡的高精度三维模型。基于三维影像进行地质解译工作,辨识主要的物理地质现象。基于三点法提取岩体结构面产状并进行统计分析,从宏观的角度推测不良地质现象对工程的潜在影响,并提出处理措施建议。总结出一套无人机近景摄影测量技术在高陡边坡地质调查中的应用方法,弥补了传统人工调查工作的不足。

It is always a difficult problem for geologists to carry out geological mapping of high and steep slopes in high mountain and gorge areas.In this paper,based on UAV tilt photography technology,the approach photogrammetry method is used to model the high and steep slope,and the high-precision 3D model of the slope is obtained.Based on the high-precision 3D model of geological interpretation work,the main physical and geological phenomena is identified.Based on the three-point method,the occurrence of rock mass discontinuity is extracted and statistically analyzed,and the potential impact of adverse geological phenomena on the project is inferred from the macro perspective,and the treatment measures are proposed.A set of application method of UAV close range photogrammetry technology in high and steep slope geological survey is summarized,which can make up for the deficiency of traditional manual survey.