Abstract：Research purposes: According to the construction of Ballastless ride request，studying network layout and survey methods of CPⅢ control for meeting the construction requirements for．Studying to meet the construction requirements of the CPⅢ control network location accuracy requirements and CPⅢ Control Network relative error and repeatable measurement error precision control indicators，which explicitly CPⅢ Control Network error，and ultimately to meet the non—ballast track construction on the smoothness requirements Measurement of protection provided．
Research conclusions:：(1)CPⅢ control network is installed evenly along the railway and the multiple—direction intersection in rear is adopted in the measurement．This is crucial to control of the relative error between measurement spots of CPⅢ control network．(2)The relative error between measurement spots of CPⅢ Control Network and the repeatable precision control of the measurement error can meet meet the requirements of the track regularity．
Cheng Ang，Liu Chenglong，Xu Xiaozuo，etc．Research on the Positional Accuracy Required for CPⅢ Network [J]．Journal of Railway Engineering Society，2009(1)： 44—48．
Liu Chengiong，Yang Youtao，Xu Xiaozuo，etc． Simulated Determination of Accuracy Requirement for Control Points Intersection Networks in High—Speed Railway[J]．Journal of Southwest Jiaotong University， 2008(6)：718—722．
He Aikuan．Research on the Maintechnical Standards of Horizontal Control for Ballastless Track Construction [J]．Journal of Railway Engineering Society，2006(9)： 27—30．
2010, Vol. 27 
版权所有 © 2014 《铁道工程学报》编辑部