《工程测量标准》平面控制网基本精度探析  

Discussion and analysis on the basic accuracy of horizontal control network in Standard for engineering surveying

作　　者：郭渭明 Guo Weiming(Survey and Design Research Institute Co.,Ltd.,of China Nonferrous Metal Industry,Xi′an 710054,China)

机构地区：[1]中国有色金属工业西安勘察设计研究院有限公司,西安710054

出　　处：《工程勘察》2023年第9期48-51,61,共5页Geotechnical Investigation & Surveying

摘　　要：本文就现行《工程测量标准》(GB 50026-2020)中平面控制网的构建方式、等级划分以及基本精度指标的来源给予解读,同时列举国家大地测量控制网的布设方法、技术要求和精度指标的发展和演变过程,分析工程测量平面控制网与国家大地测量控制网的关联和差异,以及工程测量产品形式的变化,提出解决问题的思路和建议。In this paper,the construction method,grade division and the source of basic accuracy index of horizontal control network in the Standard for engineering surveying(GB 50026-2020)are explained,and the layout method,technical requirements and the development and evolution of precision indexes of the National Geodetic Control Network are enumerated.By analysis of the relationship and difference between engineering surveying and National Geodetic Control Network,and changes in the form of engineering measurement products,the ideas and suggestions to solve the problem are put forward.

关 键 词：平面控制网 基本精度指标 等级划分 

分 类 号：P201[天文地球—测绘科学与技术]