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| STUDY AND APPLICATION OF DEFORMATION MONITORING TO TUNNEL WITH AMATEUR CAMERA |
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Abstract A new method is presented for monitoring the deformation of tunnel with amateur camera(non-metric camera). The method can easily and really measure 3D deformation values of many survey points of tunnel. It does not need any fixed exposure station or survey control point，and the method is not restricted by site conditions. At two suitable positions and more positions，the camera takes pictures against observation points，then these photographs are input to computer and the photo points are measured by computer to calculate 3D coordinates of all survey points. The analysis of deformation is processed by using 3D coordinates. The mean square error of 3D monitoring deformation is within ±2 mm. The results measured by new method have been compared with the values measured by mechanical convergence meter，which can provide reliable information for the safety of tunnel support structure .
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Received: 01 February 2004
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MAO Yuting1, 2, HE Manchao1, 2, LIU Fangzhou3, BAI Xing4, YANG Xiaojie1, 2, TAO Zhigang1, 2*. Development and application of a large-scale physical model system for tunnel creep testing[J]. , 2026, 45(6): 1627-1638. |
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