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指出平面控制测量是地铁施工测量中一项关键性的工作,是实现施工横向贯通控制的关键,简要论述了施工段范围未达到《规范》限定精密导线布设基本要求时,如何进行施工首级平面控制测量布设及精度分析,以使之满足各阶段施工放样及最终贯通精度要求。
It is pointed out that the measurement of plane control is a key work in metro construction survey and the key to realize horizontal through control of construction. The paper discusses briefly how the construction of the first level plane Control of measurement layout and accuracy analysis to meet the needs of all stages of construction stakeout and final penetration accuracy.