论文部分内容阅读
从北京地铁线路曲线的特点出发,采用10 m弦测量曲线正矢,并对缓和曲线正矢与计算正矢差、圆曲线正矢连续差、圆曲线正矢最大最小差值等容许偏差进行分析,制定相应的10m弦量测曲线正矢容许偏差标准。
Based on the characteristics of the curve of Beijing metro line, the 10 m chord is used to measure the positive curve of the curve, and the allowable deviation of the positive curve and the positive vector, the continuous positive difference of the circular curve and the maximum and minimum difference of the positive vector of the circular curve are analyzed , To develop the corresponding 10m-string measurement curve positive tolerance tolerance standard.