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将计算机辅助检测技术(computer aided inspection,CAI)引入到滑坡物理模型试验坡面位移场测量中,采用高精度的三维激光扫描设备对滑坡物理模型试验中坡体表面的位移和变形进行全方位的监测,采用“3D比较”测量坡体表面位移场。提出采用计算机辅助检测技术测量滑坡模型试验中坡体表面位移场的技术路线,并通过抗滑桩加固滑坡模型进行了实例测试,获得满意的结果。结果表明,计算机辅助检测技术可以最大限度的采集坡体表面的三维数据,获取坡体信息丰富、全面的位移场结果,避免传统单点监测以点带面的局限性;应用计算机辅助检测技术直观展现传统监测方法难以观察到的坡体边界效应、土拱效应等试验现象;计算机辅助检测技术所测位移场规律性好,与定性及理论结果相符,与试验过程中各种现象符合很好,结果可信、可靠。
Computer aided inspection (CAI) was introduced into the displacement field measurement of the landslide physical model test. The displacement and deformation of the slope surface in the physical model test of the landslide were comprehensively studied by the high precision 3D laser scanning equipment. Monitoring, using “3D comparison ” measure the surface displacement of the slope. The technical route to measure the displacement field of slope surface in landslide model test by using computer aided detection technology is proposed. The landslide model reinforced by anti-slide piles is tested by examples, and satisfactory results are obtained. The results show that the computer-aided detection technology can collect the three-dimensional data of the slope surface to the maximum extent and obtain the abundant and comprehensive displacement field results of the slope information, avoiding the limitation of the traditional single-point monitoring with the point and the surface; using computer-aided detection technology to visualize the traditional monitoring Method is difficult to observe the phenomenon of slope boundary effect, soil arching and other test phenomena; computer-aided detection of measured displacement field regularity good, consistent with qualitative and theoretical results, consistent with the various phenomena in the test process, the result is credible ,reliable.