关键词: 曲面建模, 摄影测量, 数字模型, 基坑监测

Abstract:

According to the problems in the application of traditional monitoring technology in displacement monitoring in deep foundation pit, such as difficult monitoring, long monitoring time and large labor intensity, the dense surface modeling technology is presented. Based on the principle of dense surface modeling, the accuracy of monitoring displacement was analyzed in combination with PMS software and hardware devices. The engineering practice and analysis results verify that the dense surface modeling technology can be applied in the displacement monitoring of deep foundation pit, which can quickly and accurately reflect the deformation of soil body induced by surrounding foundation pit excavation.

Key words: dense surface modeling, photogrammetry, digital model, foundation pit monitoring