浅谈工程测量控制网精度序列

Accuracy Sequence of Engineering Surveying Control Network

工程测量控制网精度序列经过数十年的实践和应用,已在相关国家标准、行业标准及地方标准中广泛引用,充分证明工程测量控制网精度体系和技术指标的科学性、合理性和适用性。工程测量控制网精度体系的构建,是在总结大量工程经验的基础上进行分类、归纳、总结而形成的,其目的是对工程测量不同阶段精度等级的基本定义、系统构成、作业特点、分类原则、制定依据、指标来源、核心要求和应用方法等进一步的总结区分。针对新发布的GB 50026—2020《工程测量标准》,从平面控制网和高程控制网的历史渊源和指标架构着手分析,同时结合工程测量控制网精度体系的构建,着重对平面控制网和高程控制网的精度序列进行论述。

During decades of practice and application,the accuracy sequence of engineering surveying control network has been widely cited in relevant national standards,industrial standards and local standards,which proves the scientificity,rationality and applicability of the accuracy system and technical indicators of engineering surveying control network.The construction of the accuracy system of engineering surveying control network is formed by classification,induction and summary on the basis of summarizing a large number of engineering experience.It aims at summarizeing and distinguishing the basic definition,system composition,operation characteristics,classification principle,formulation basis,index source,core requirements and application methods of accuracy grade deeply in different stages of engineering surveying.For the newly issued GB 50026-2020 Standard for Engineering Surveying,this paper analyzes the historical origin and index structure of horizontal control network and vertical control network,and focuses on the accuracy sequence of horizontal control network and vertical control network with the construction of engineering survey control network accuracy system.