三维激光扫描技术在陡峭山体土石方量计算中的应用
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摘要
三维激光扫描技术是测绘领域,继GPS技术之后诞生的又一次技术革命,又被称为实景复制技术。作为新兴的测量技术手段,三维扫描技术突破了传统的单点测量方法,具有全景化、高效率、高精度、高密度的独特优势。三维激光扫描技术能够提供扫描物体表面的三维点云数据,因此常用于获取高精度、高分辨率的数字地形模型并计算土石方量。在工程领域有着广泛的应用前景。本文将以一陡峭山体为例讨论利用三维激光扫描技术快速获取数字地形模型及土石方量的方法,并与常规的全站仪测量高程点构建TIN方法计算土石方量进行分析比较。实践证明,相比传统全站仪测量高程点的作业模式,三维激光扫描技术提高了作业效率,对于山体较为陡峭、地形比较复杂的区域,更能发挥自身的优势。
Three-dimensional laser scanning technology is another technology revolution that was born after the GPS technology in the field of surveying and mapping.It is also called real-life copying technology.As an emerging measurement technology,3D scanning technology has broken through the traditional single point measurement method,with the unique advantages of panoramic,high efficiency,high precision and high density.3D laser scanning technology can provide3D point cloud data on the surface of the object,so it is often used to obtain high-precision and high-resolution digital terrain models and calculate the amount of earth and stone.It has broad application prospects in the vast field of engineering.This paper will take a steep mountain as an example to discuss the method of quickly acquiring digital terrain model and earthwork volume by using 3D laser scanning technology,and compare and calculate the earthwork volume with the conventional total station measuring elevation point TIN method.Practice has proved that,compared with the traditional operation mode of total station elevation measurement,the three-dimensional laser scanning technology greatly improves the operation efficiency,and can give full play to its own advantages in areas with steeper mountains and more complex terrain.
Three-dimensional laser scanning technology is another technology revolution that was born after the GPS technology in the field of surveying and mapping.It is also called real-life copying technology.As an emerging measurement technology,3D scanning technology has broken through the traditional single point measurement method,with the unique advantages of panoramic,high efficiency,high precision and high density.3D laser scanning technology can provide3D point cloud data on the surface of the object,so it is often used to obtain high-precision and high-resolution digital terrain models and calculate the amount of earth and stone.It has broad application prospects in the vast field of engineering.This paper will take a steep mountain as an example to discuss the method of quickly acquiring digital terrain model and earthwork volume by using 3D laser scanning technology,and compare and calculate the earthwork volume with the conventional total station measuring elevation point TIN method.Practice has proved that,compared with the traditional operation mode of total station elevation measurement,the three-dimensional laser scanning technology greatly improves the operation efficiency,and can give full play to its own advantages in areas with steeper mountains and more complex terrain.
引文
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[2]秦红艳.三维激光扫描技术检测测绘成果精度的应用[J].测绘工程,2018,27(10):40~44+48.
[3]王孝敏.三维激光扫描技术在土石方计算中的应用研究[D].西安:西安理工大学,2017.
[4]何智铭.三维激光扫描技术在陡峭山体土石方量测算中的应用[J].广东土木与建筑,2017,24(1):70~72+8.
[5]袁凤祥,秦岩宾,安家瑞.三维激光扫描技术在土石方量测量中的应用[J].测绘工程,2016,25(9):55~58.
[6]冯晓刚,刘明星,撒利伟等.三维激光扫描在土石方量精计算中的应用[J].地理空间信息,2015,13(4):49~51+12.