| The laying of high-speed turnout required the guarantee of complicated technology and high precision, while the speed of the train and the safety, comfort and durability of the rail directly result from the ride of the turnout. The precision measurement and the data analysis are quite important since the ride of high-speed turnout based on high-precision measurements. We used to adopt the foreign method and technology to do the high-speed rail construction-related measurements before2008. After that, the high-speed rail technology brought the appearance of measurement technology, measuring tools and data processing software of high-speed rail. However, the study of the measuring method and the data analysis has been neglected. Actually domestic high-speed turnout measurements, whether the calculation of design document, the measuring method or the processing of measured data, all employ the long rail precision measuring method and calculation model Meanwhile, because the ride of high-speed rail expects much than that of long rail, so this thesis lucubrate the precision measurement and deduces the related arithmetic of high-speed turnout. The main research parts of this thesis include:Firstly, elicitation of model which used to calculate the stake point design coordinates and design elevation of high-speed turnout was presented. According to the different constitutions of the linear of the turnout, different models are adopted to calculate the mileage and design coordinate of the line points which corresponding to the measure points arbitrarily.Secondly, an elicitation of calculating model which employed to calculate the derivation of high-speed turnout rail is presented. For setting the standard for orbital adjustment on site, this thesis defined plane mileage as offset distance crankshaft coordinate system and vertical surface mileage as deviation crankshaft coordinate system. It did favor to the adjustment. Meanwhile, a calculation principle of the ride was introduced and proposed as well as the idea that taking the difference of absolute deviation as the indicator to evaluate the ride of the rail.Thirdly, an introduction of specific ways to measure turnouts and lap joints between adjacent observation stations is presented. This thesis elicited the precision along with measuring turnouts and the tolerance of lap joint coordinates between adjacent stations, and calculated the precision coordinate and the adjustment of the rail.Finally, a formation of high-speed turnout precision survey data processing software (HTSDPS) is presented based on the related arithmetic of turnout proposed in this thesis. The HTSDPS realized the automatic processing and analysis of survey data. In addition, the validity of this software can be guaranteed by comparing calculation to other commercial software. |
