地理空间信息2026，Vol.24Issue(6)：89-92,4.DOI:10.3969/j.issn.1672-4623.2026.06.016
高速铁路跨海大桥首级GNSS控制网技术研究
Research on the Primary GNSS Control Network Technology of High-speed Railway Sea-crossing Bridge
摘要
Abstract
Aimed at the difficulties of long sea-crossing distance,complex and disadvantageous satellite positioning environment,high accuracy requirements and no relevant surveying technical standard to follow,we carried out the technical study on necessary accuracy,coordinate system,network setting-up,field surveying and data processing of the primary GNSS control networks of high-speed railway sea-crossing bridges,rely-ing on the Hangzhou Bay sea-crossing bridge of Nantong-Suzhou-Jiaxing-Ningbo high-speed railway.Then,we proposed methods of determining the necessary accuracy of control network based on the allowable construction deviations of sea piers of bridge,using precise point positioning technology to obtain the precise coordinates of baseline starting point,and data processing for accurate connection between the control network of sea-crossing bridge and the high-speed railway frame control network(CP0).The feasibility and effectiveness of those methods were verified by the measured data.The research fruits of this paper will be used as reference for the primary GNSS control network surveying of other similar sea-crossing passage engineering,and the development of relevant technical standards.关键词
高速铁路/杭州湾跨海铁路大桥/首级GNSS控制网/CP0Key words
high-speed railway/Hangzhou Bay sea-crossing railway bridge/primary GNSS control network/CP0分类
天文与地球科学引用本文复制引用
吴迪军,李剑坤,彭小青..高速铁路跨海大桥首级GNSS控制网技术研究[J].地理空间信息,2026,24(6):89-92,4.基金项目
中国中铁股份有限公司科技研究开发计划重大课题资助项目(2025-重大-01). （2025-重大-01）
