利用自由设站导线测量方法建立CPⅡ平面控制网探讨  

Research on the new method of constructing CPⅡcontrol network for railway tunnel ballastless track

作　　者：张然 王波 Zhang Ran;Wang Bo(Shanxi Tiansheng Surveying and Mapping Engineering Co.,Ltd.,Taiyuan 030000)

机构地区：[1]山西天昇测绘检测工程有限公司,太原030000

出　　处：《工程勘察》2020年第10期68-71,共4页Geotechnical Investigation & Surveying

摘　　要：在铁路隧道贯通后,为满足无砟轨道铺设的需要,需建立线路平面控制网(CPⅡ)。本文分析了传统导线测量建立CPⅡ控制网存在的缺点,提出采用自由设站导线建立线路平面控制网(CPⅡ)。自由设站导线平面网较交叉导线、四边形导线网具有优势,可以在铁路隧道无砟轨道建立CPⅡ平面控制网时推广应用。After railway tunnel break-through,the plane control network(CPⅡ)is established to meet the requirement of ballastless track laying.In this paper,the disadvantages of using traditional traverse survey for CPⅡare analyzed.The free-station traverse method to establish plane control network(CPⅡ)is proposed.It has more advantages than cross traverse and quadrilateral traverse network,which can be popularized and applied in the construction of CPⅡplane control network for ballastless track of railway tunnel.

关 键 词：铁路隧道 CPⅡ平面控制网 自由设站导线 

分 类 号：P221[天文地球—大地测量学与测量工程]