精密线型控制网建立方法的探讨  

Study on Establishment Method of High Precision Control Network for Linear Engineering

作　　者：王健 WANG Jian(College of Mining Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210

出　　处：《华北理工大学学报（自然科学版）》2021年第1期9-14,25,共7页Journal of North China University of Science and Technology：Natural Science Edition

摘　　要：在自由测站边角交会网的基础上,提出了精密线型边角网的建立方法。对比分析结果表明,2种控制网在外业观测工作量、工作效率等方面大体相当。自由测站边角交会网设站位置灵活,便于利用已有的结构物建立控制点,可以作为精密线型控制网建立的主要方式。精密边角网对通视条件要求较低,在精度方面更具有优势,但需要建立专门的强制对中观测墩,可以作为精密线型控制网建立方式的有益补充。On the basis of free station linear angular intersection network,the establishment method of high precision linear triangulateration network was proposed.By comparation and analysis,the results show that the two kind of networks roughly have the same workload and efficiency on field observation.Free station linear-angular intersection network has some advantages such as flexible station,using existing structures to establish control points,it can be the main way in establishing high precision linear control network.High precision triangulateration network has some advantages on higher precision and lower requirements for visibility,but it needs forced centering observation stand,it can be a useful supplement in establishing high precision linear control network.

关 键 词：线型控制网 边角网 自由测站边角交会网 

分 类 号：P221[天文地球—大地测量学与测量工程]