黄茅海跨海通道跨海高程传递测量技术研究  

Technical Research on Sea-crossing Elevation Transference of Huangmaohai Link

作　　者：郑强[1] 赵敏 熊伟[1] ZHENG Qiang;ZHAO Min;XIONG Wei(China Railway Major Bridge Reconnaissnace&Design Institute Co,Ltd.Wuhan 430050,China;Hubei Province Surveying&Mapping Engineering Institute,Wuhan 430070,China)

机构地区：[1]中铁大桥勘测设计院集团有限公司,湖北武汉430050 [2]湖北省测绘工程院,湖北武汉430070

出　　处：《地理空间信息》2022年第4期178-180,188,共4页Geospatial Information

摘　　要：为解决大型跨海桥梁工程海中高程基准建立的实际需求,以黄茅海跨海通道工程为例,对测量平台跨海高程传递测量的技术要求进行专项设计,根据测量平台的垂直角变化规律情况设计的垂直角观测程序及观测参数,能有效削弱测量平台晃动对垂直角观测的不利影响,并提高作业效率。实测结果表明,跨海水准测量成果均符合规范限差要求,并且利用两岸陆地控制点进行了闭合差验证,路线总长约13.5 km的附合水准路线闭合差为11.9 mm,达到二等水准测量精度要求,可供类似跨海桥梁工程项目参考。To solve the actual demand of establishing sea elevation benchmark of large-scale cross-sea bridge project,taking the Huang Maohai cross-sea channel project as an example,the cross-sea elevation transmission measurement technical requirements of the measuring platform were specially designed.The vertical angle observation procedure and observation parameters designed according to the measuring platform vertical angle change patterns could effectively weaken the adverse effects of measurement platform shaking diagonal observation and improve operation efficiency.The measurement results show that the cross-sea level measurement results are in line with the standard limit requirements.The closing difference verification was carried out with land control points on both sides of the Taiwan Straits.The total length of the route is about13.5 km,and the attached level route closing difference is 11.9 mm,which meets the second-class measurement accuracy requirements.This can be used as reference for similar cross-sea bridge projects.

关 键 词：黄茅海跨海通道 测量平台 跨海高程传递 

分 类 号：P258[天文地球—测绘科学与技术]