摘要
受三峡升船机施工环境和设备安装精度的要求,单纯运用传统方法组建的控制网难以保证全网联测的精度。针对三峡升船机高精度平面控制网进行研究,将GPS平面控制网与经典边角网相结合,采取"分级布网、逐级控制"的原则,采用模拟计算和误差统计的方法,将正态分布误差加入到模拟的仿真观测值中,验证观测方案及精度等级的设计。通过模拟计算,采用该方法组建的控制网精度完全满足升船机施工及安装环节的需要,对类似的空间狭小且设备复杂的工程控制网的布设具有重要的理论和现实意义。
With the requirements of the ship lifts in Sanmen construction environment and equipment installation accuracy, the traditional method of formation of the control network simply used is difficult to ensure the accuracy of the entire network of joint measurement. In this paper, the high-precision surface control network of ship lift is studied, combing GPS horizontal control network and classic corners network, adopting the principle of ＂ hierarchical distribution network, step control,using the method of simulation and statistical error,adding normally distributed error to analog simulation observations and verifying the design of observation program and accuracy class, through the simulation, the control network precision established in this method fully meet the needs of construction and installation of chip lift links,similar space narrow and complex equipment engineering control network laid an impottant theoretical and practical significance.
作者
李东明
张怀仁
路卫兵
陈继华
张伟平
LI Dongming ZHANG Huairen LU Weibing CHEN Jihua ZHANG Weiping(National Center of Quality inspectinn and Testing for Hydor Structure The Ministry of Water Resourcesl, Zhengzhou 450044 China Three Gorges Corporation, Yichang 443155, China Zheng zhou University, Zhengzhou 450044, China)
出处
《人民珠江》
2017年第3期40-45,共6页
Pearl River
关键词
三峡升船机
模拟计算
平面控制网
施工控制网
安装控制网
Three Gorges Ship lift
Simulation
control plane network
construction control network
control network installation
