线路曲线的测设

Surveying of the Line Curve

线路曲线的测设是线路勘察设计和施工阶段的重要环节,为保证铁路建设的质量,其精度要保持在毫米级精度范围内。通过对线路的中边桩坐标换算模型的研究,综合分析其坐标计算理论和精度的前提下,得出了一套完整的线路中边桩坐标换算的理论和过程,并通过与武汉大学出版的《工程测量学》一书中曲线测设内容的对比分析,验证了其合理性和精确性,其换算精度能够满足现代化线路精度的基本要求。

In order to guarantee the quality of the railway construction,surveying of the line curve is an important part of the design and construction phases,and the accuracy is to be kept within the scope of millimeter precision.Based on the study of center pile and side pile coordinate model,we analyzed its coordinates calculation theory and precision of the premise,came to a complete theory and process of line side pile coordinates conversion.Compared with the contents of the laying out of curve in the book of Engineering Surveying published by Wuhan University,it verifies the reasonableness and accuracy,and the conversion accuracy can meet the basic requirement of modern line precision.