| Mining area buildings or structures deformation monitoring is an important content to ensure mine safety production. The traditional method of deformation monitoring is of low efficiency, low safety, labor and time wasting. The three-dimensional laser scanning technology has the advantages of fast scanning speed, high efficiency and non-contact characteristics, and can ensure the safety of operating personnel, and access to vast amounts of the target point cloud data.In this paper, the application of3D laser scanning technology is used in building deformation monitoring, making full use of its technical superiority. Huge amounts of point cloud data is obtained through scanning the Qidong coal mine main well derrick.On the basis of splicing and modeling, mining area derrick deformationmonitoring was carried out, and the results are as follows:1.Combining the existing research results at home and abroad, the steps of technical solution for Qidong coal mine main well derrick deformation monitoring anddata processing was made, and suitable analysis algorithms was found.2. On the basic of the treated point cloud data and according to the requirement of deformation monitoring, extracting the feature points from the mining derrick,and the compare the plane displacement variation between two-stage datas, calculatethe angles between the slope comparison tripod variation, and charts to display.3. Errors in the results analysised to find out the main error of three-dimensional laser scanning technology and put forward the measures to reduce the error.Conclusions made in this paper are as follows: Three-dimensional laser scanning technology can be applied to deformation monitoring, can improve the work efficiency, the amount of data in detail is more than traditional deformation monitoring,but its accuracy is not able to meet the requirement of deformation monitoring, also need to be further studied in the aspects of hardware and software, to overcome the above problem. |
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