高速铁路CPⅢ控制网置平处理结果分析

Analysis of CPⅢ Control Network for Flat Processing for High-speed Railway

目前(边角)后方交会控制网已成为构建高速铁路CPⅢ网的主要形式,但所采用的数据处理方法一直采用经典的约束网平差,未采用先进的控制网置平技术等测量数据处理方法。经过中铁八局集团有限公司和西南交通大学的共同努力,研制出了和国外同类软件一样具有控制网置平功能的CPⅢ网数据平差软件包(WZTCS)。本文根据WZTCS的CPⅢ网置平功能特点,利用CPⅠ、CPⅡ和CPⅢ控制网仿真试验和在建客运专线的工程实例,证实了采用先进的控制网置平技术比采用经典的约束网平差,CPⅢ控制网的精度和平顺性更高。

The side-angle resection control network has been the main form of building high-speed rail CPⅢ network. However, the data processing method always adopts the classic constraint network, without using advanced technology of control network flat. With the joint efforts of china railway NO.8 engineering Group Co., Ltd. and Southwest Jiaotong University, we developed a cPm network data adjustment package （WZTCS） which has the functions of control network for flat and is similar to abroad software. This paper based on the CPⅢ network flat eatures of WZTCS, uses of CPⅠ, CPⅡ and CPⅢ control network simulation test and the passenger special line engineering examples, eonfirmes CPⅢ control network has higher accuracy and evennes when use advanced Soft Fixed points adjustment in control networks constraints than use classical network adjustment.