摘要
二等水准是地铁工程高程控制的基准,使用前必须掌握其点位精度、稳定性等主要内容,保证车站与线路连接的整体性,同时满足隧道贯通、铺轨基标标高精度的需要。介绍广州地铁六号线B标段二等水准网复测、解算与精度评定等重要过程,对复测成果进行分析,并给出复测的结论与建议。
The second level is the vertical control standard of the metro project, the point precision, stability and other major content must be mastered before use, to ensure the integrity of the connection between station and the line, while meeting the tunnel through and high-precision requirement for the base elevation of rail laying. The important process of second level of network lot retest and accuracy assessment of Guangzlaou Metro Line B 6 were introduced, the retest results were analysed, and the conclusion and recommendations of retest were indicated.
出处
《工程建设与设计》
2011年第6期139-141,共3页
Construction & Design for Engineering
关键词
地铁
二等水准
测量
精度评定
subway
second grade level
measurement
accuracy assessment
