The invention belongs to the technical field of application of unmanned aerial vehicle surveying and mapping in track engineering, and particularly relates to an adjacent existing line cutting partition wall type excavation method based on unmanned aerial vehicle surveying and mapping, which comprises the following steps: formulating a flight route: formulating the flight route according to a cutting slope to be excavated; unmanned aerial vehicle investigation: carrying out investigation along the formulated flight route; creating a three-dimensional topographic map: generating the three-dimensional topographic map of the cutting slope according to the aerial image and the pos data; plan making: making an excavation plan according to the three-dimensional topographic map; construction preparation is conducted, specifically, the top of a to-be-excavated cutting slope is reinforced; a protective bent frame is built, specifically, a movable protective bent frame is built; excavation is conducted from the newly-built line side to the existing line side, an excavation groove is formed, and a partition wall is reserved on the side close to the existing line during excavation; moving the movable protective bent frame downwards along the side slope of the existing line, excavating earth and stone of the partition wall part, and gradually moving the inner side wall of the partition wall outwards; and repeating the steps. By means of the scheme, the problem that the safety risk of earth and stone excavation close to the existing line cutting is high can be solved.
本发明属于无人机测绘在轨道工程中的应用技术领域,具体涉及一种基于无人机测绘的邻近既有线路堑隔墙式开挖方法,包括步骤:制定飞行路线:根据待开挖路堑坡制定飞行航线;无人机勘察:沿制定的飞行航线进行勘察;三维地形图创建:根据航拍图像以及pos数据,生成路堑坡的三维地形图;计划制定:根据三维地形图制定开挖计划;施工准备:对待开挖的路堑坡顶加固;搭建防护排架:搭设移动防护排架;路堑土石方开挖:由新建线侧向既有线侧开挖,形成开挖槽,开挖时在靠近既有线侧预留隔墙;将移动防护排架沿既有线侧边坡下移,开挖隔墙部分土石方,并让隔墙内侧壁逐渐外移;如此循环。采用本方案能够解决临近既有线路堑土石方开挖安全风险高的问题。
Adjacent existing line cutting partition wall type excavation method based on unmanned aerial vehicle surveying and mapping
基于无人机测绘的邻近既有线路堑隔墙式开挖方法
2023-01-17
Patent
Elektronische Ressource
Chinesisch