近景摄影测量技术在深基坑三维反演中的应用研究

摘要

The paper proposes using 3D inversion techniques of close range photogrammetry to application research of deep foundation. Combining indoor and outdoor test analysis, the inversion analysis method of three-dimensional model with PMS software has been established. A three-dimensional digital model of the site excavation is obtained. Through the three-dimensional digital model analysis, getting three-dimensional coordinates of the foundation face of the cloud point, binding data nodes at different times, may establish excavation deformation of the structure. The technology has a fast, easy, low interference and low cost, which can effectively supplement the existing technology in deep foundation applications.%本文提出采用近景摄影测量三维反演技术对深基坑展开应用研究，并结合室内外试验分析，建立了基于PMS软件的基坑三维模型反演分析方法，获取了现场基坑工程的三维数字模型遥通过对三维数字模型的解析，获取了基坑面上云点的三维坐标，结合不同时间节点的数据，可建立基坑支护结构的变形规律遥该技术具有快速、方便、干扰小、成本低等优势，可有效弥补现有技术在深基坑应用中的不足。