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三维激光扫描技术在延安治沟造地规划设计领域的应用浅析

Application of 3D Laser Scanning Technology in Planning and Design of Managing Gully and Increasing Land in Yan’an

Advance in Civil Engineering / 2021,3(4): 99-104 / 2021-10-19 469 554

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• Authors: 杨艳
• Information:

  陕西地建土地勘测规划设计院有限责任公司，西安

• Keywords:
  3D laser scanning technology; Planning and design; Managing gully and increasing land; Data collection
  三维激光扫描; 规划设计; 治沟造地; 数据获取
• Abstract: Managing gully and increasing land in Yan’an is a very important land remediation project in our country. This area belongs to the special geomorphology of the hilly and Gully. Before the project, planning and design are very important. In the past, the design of the red line is obtained that must be repeated through image primaries, overlay database, site investigation, revision design and so on, those processes are repeatedly changed. But 2D image does not reflect well for terrain with large angles to the ground such as steep slopes or cliffs, the red line of managing gully project only needs to include gullies and does not require hill slopes. This results in the design of red line coming out “uphill” conditions. In order to avoid this situation, this paper proposes to directly use airborne 3D laser scanning technology to obtain 3D point cloud data in the project area after the project scope is determined. Because the point cloud data has accurate spatial 3D information, it can also acquire image data at the same time. After the data is acquired, it is planned and designed on the point cloud to obtain the design red line. At the same time, information such as water and road can be extracted to provide a full range of overall planning and design. Data support. 延安治沟造地是全国土地整治重大工程，该地区属于丘陵沟壑区特殊地貌，前期的规划设计非常重要，以往要得到设计红线需经过影像初选、套二调库、实地 勘察、修改设计等过程反复更改，但由于二维影像对于陡坡或峭壁等与地面夹角较大的地形反映欠佳，而治沟项目红线只需包括沟壑，不需要山坡，这就造成设计红线“上山”的情况，为了避免出现这种情况，本文提议在项目大致范围确定后，直接采用机载三维激光扫描技术获取项目区的三维点云数据，由于点云数据具有精确的空间三维信息，也可同时获取影像数据，数据获取后在点云上进行规划设计，得到设计红线，同时也可提取水体、道路等信息为整体规划设计提供全方位的数据支撑。
• DOI: https://doi.org/10.35534/ace.0304018
• Cite: 杨艳．三维激光扫描技术在延安治沟造地规划设计领域的应用浅析［J］．土木工程进展，2021，3（4）：99-104．