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Some Technique Questions Study about High-speed Railway Surveying

Author: LiuLingJie
Tutor: SunXianShen
School: PLA Information Engineering University
Course: Geodesy and Survey Engineering
Keywords: Triple play Dual projection CP Ⅲ control network Track plate installation Track inspection
CLC: U212.2
Type: Master's thesis
Year: 2009
Downloads: 337
Quote: 0
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Abstract


Firstly, by studying the high-speed railway track ride laying the accuracy requirements of the control network , analysis of control network optimization design of high-speed rail and cloth net principle , put forward on the basis of the current three cloth mesh laid trunk control network needs as the entire line basis control point of view of the network . Gauss projection limitations in measurement applications in high-speed rail , small control range for the Gauss projection in the measurement of high-speed rail , raised Oblique Mercator projection projection method using the first spherical projection along the direction of the railway line , and analysis of the the feasibility of the projection method in measurement applications in high-speed rail , and finally through a practical example of this approach applied to Luo Fu railway engineering and construction units using the Gaussian projection method has obvious advantages compared . Plane data processing and three-dimensional data processing model the high the iron CPIII construction control network , and CPIII control elevation surveying using triangulation elevation method instead of the current construction unit detailed analysis on the feasibility of using precise leveling method , the measured data to the construction unit for example, by analyzing the triangular elevation instead of precise leveling laying accuracy CPIII elevation control network to meet the requirements data processing in CPIII proposed CPIII data processing , analysis by programming experiment using the three-dimensional elevation and flat handled separately instead of recommended directly adjustment .

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CLC: > Transportation > Rail transport > Railway Line Project > Line planning, surveying and design > Survey
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