CAJ | 학술논문

针对高速公路改扩建勘测的特点与精度要求,本文提出直升机载LIDAR测量技术.首先,采用直升机搭载LIDAR沿高速公路中线低空、低速飞行扫描获取路面点云数据,然后通过高速路两侧硬路肩预布设的控制点对点云平面坐标和高程进行改正、拟合,以使点云精度与密度满足高速路改扩建勘测设计需求.该技术在京藏高速银川段改扩建工程中得到了应用,成果精度完全满足要求.
침대고속공로개확건감측적특점여정도요구,본문제출직승궤재LIDAR측량기술.수선,채용직승궤탑재LIDAR연고속공로중선저공、저속비행소묘획취로면점운수거,연후통과고속로량측경로견예포설적공제점대점운평면좌표화고정진행개정、의합,이사점운정도여밀도만족고속로개확건감측설계수구.해기술재경장고속은천단개확건공정중득도료응용,성과정도완전만족요구.
In view of the characteristics and precision of the highway reconstruction and extension surveying, this paper puts forward the helicopter LIDAR measurement technology. In order to meet the point cloud precision and density requirements of the expressway reconstruction and extension, first of all, LIDAR is equipped with a helicopter to obtain the surface point cloud data along the middle line of the highway, and then the coordinates of point cloud are corrected by the control points on both sides of the hard shoulder of expressway. The technology has been applied in the reconstruction and extension project of Yinchuan section of Beijing-Tibet Expressway, and the results meet the requirements completely.