Scholarlink

<p>At present, traditional monitoring equipment used in physical model tests of hydraulic engineering structures cannot provide visualized monitoring of local deformation and overall displacement of dam bodies. This paper uses 3D laser scanning technology to perform non-contactly monitor the deformation of the CSG dam model during the structural model failure test. By comparing it with traditional monitoring methods, the relationship between point cloud data and displacement is established, enabling real-time, visualized monitoring of the entire dam model. Additionally, an in-depth analysis of the dam failure mechanism is carried out based on the monitoring results. Test results show that: (1) The displacement distribution map obtained by 3D laser scanning indicates that the mutation values at <i>K</i><sub><i>p</i></sub> = 1.6, <i>K</i><sub><i>p</i></sub> = 3.2, and <i>K</i><sub><i>p</i></sub> = 5.6 are basically consistent with those measured by displacement gauges, and the maximum displacement at the middle of the dam reaches 1&#xa0;cm. (2) When <i>K</i><sub><i>p</i></sub> = 5.6, significant mutations occurred in both the dam displacement and strain. As the cracks at the interface between the dam body and its foundation linked up, the model sustained damage. The 3D laser scanning technology enables effective, real-time, and accurate monitoring of model structures, providing new measurement methods and analytical perspectives for subsequent geomechanical structural model tests of hydraulic engineering structures.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on failure mechanism and non-contact monitoring of CSG dam structural model based on 3D laser scanning

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月10日

查看全文
  • Zelin Ding,
  • Tao Wang,
  • Linzhi Zhang,
  • Yuanfeng Hao

摘要

At present, traditional monitoring equipment used in physical model tests of hydraulic engineering structures cannot provide visualized monitoring of local deformation and overall displacement of dam bodies. This paper uses 3D laser scanning technology to perform non-contactly monitor the deformation of the CSG dam model during the structural model failure test. By comparing it with traditional monitoring methods, the relationship between point cloud data and displacement is established, enabling real-time, visualized monitoring of the entire dam model. Additionally, an in-depth analysis of the dam failure mechanism is carried out based on the monitoring results. Test results show that: (1) The displacement distribution map obtained by 3D laser scanning indicates that the mutation values at Kp = 1.6, Kp = 3.2, and Kp = 5.6 are basically consistent with those measured by displacement gauges, and the maximum displacement at the middle of the dam reaches 1 cm. (2) When Kp = 5.6, significant mutations occurred in both the dam displacement and strain. As the cracks at the interface between the dam body and its foundation linked up, the model sustained damage. The 3D laser scanning technology enables effective, real-time, and accurate monitoring of model structures, providing new measurement methods and analytical perspectives for subsequent geomechanical structural model tests of hydraulic engineering structures.