Mine Geological Modeling And Application Based On The Three-dimensional Laser Scanner Technology

Three-dimensional laser scanning technology,with its speediness, high precision, omnibearing measure and other characteristics, makes up for some shortcomings of the traditional geological survey, and effectively solves in two-dimensional geological paper-material defects,such as lacking of intuitive understanding, high risk areas not easy to collect data. This paper using laser scanning techniques, aims to study at a large mine on the three dimensional modeling method and its applications.The south stope of Baiyinnuo’er Pb-Zn mine area is chosen as the research region in chifeng city,Inner Mongolia,mainly for the realization of two aspects:(1) Three-dimensional modeling of overall mine.Relying on the mines point cloud data selected by the Optech3D laser scanner, with the aid of the post-processing software:Polyworks, Geomagic Studio for instance, the paper completed on the aligning work about the space point cloud data of mined-out area, reappearing the whole face of the the mine,accomplishing the absolute positioning coordinates.(2)3D geological model and study on the typical section of the ore deposit。Based on the whole model, positioning the section, the paper, combining with the geochemical element data picked by the PXRF instrument, constructed the model using Gocad, and analyzed the regularity。It mainly addresses the following issues:(1) For processing the mass point cloud data problem, according to the actual conditions of mine, it put forth the paper target as the proof of the data combination, through the experimental study summarizing the target posted standard, and put forward a series of methods to solve the subsection mass data processing in the difficulties and achieve the opposite coordinate positioning in the later process of aligning.(2) For dealing with different software files conversion problems, according to the advantages of different softwares, it solved the files conversion problem which was from the original data to the file layout of the post-processing softwares, and then to3D geological modeling software.(3) According to the requirements of the geological modeling, and the thought and principle of Roderick matrix, it completed the coordinate transformation between relative coordinates and geodetical coordinates, realizing the geographic absolute coordinates orientationThrough the in situ measurement about the whole point cloud data of the mine, the use of mines point cloud data to do the whole3D model, it put forward some solutions to process the large amount of data, study on the principle and method of relative coordinate localization,and absolutely coordinate positioning to realize the panoramic view of the mine again. In combination with metallogenic types of the mining the representative section is selected to model, with the data from the portable X-ray fluorescence spectrometer, analyzing the migration rule about the elements and its relationship with rock reflectivity。 Meanwhile, the correlation is found between the element content and the intensity of rock。The main innovation are as follows:(1) With the new in situ measurement technology, using the multiple geological data by3D laser scanner and portable X-ray fluorescence instrument, it constructed the overall3d geological modeling through integration method, realizing the relative coordinates orientation and absolutely coordinate localization.(2) According to the model, it analyzed enrichment regularity about the geochemical elements in the typical profile of the ore deposit and the relationship between the intensity and mineral rock combinations of elements。...