摘要
在沉管隧道的工程建设中,基床测深是基础施工的重要环节,高精度的基床测深是基础工程质量的重要保障。以深中通道工程海底隧道基床碎石整平试验项目为依托,基于多波束测深系统,开展高精度检测技术的研究和应用。利用水下同位置参数转换对比法,实现基于大地测量高精密仪器对多波束测深系统精度的检测验证。通过设置水下高程比测钢板,对多波束系统数据处理模型进行标定,并进行误差强制性修正,有效地提高了基床铺设精度。将多波束扫测数据与贯通测量结果比对检验,结果基本吻合,表明多波束测深系统满足工程需要。沉管隧道基础施工多波束测深系统高精度检测技术可为水下基础施工提供可靠数据。
In the engineering construction of immersed tube tunnel,the foundation bed bathymetry is an important part of thefoundation construction,and high-precision foundation bed bathymetry is an important guarantee for the quality of thefoundation engineering.Relying on the gravel leveling test project of the submarine tunnel foundation bed of ShenzhenZhongshan Link project,the research and application of high-precision detection technology based on multi-beam bathymetrysystem was carried out.The underwater same position parameter conversion comparison method was used to realize the testingand verification of the accuracy of multi-beam bathymetry system by geodetic high precision instruments.The calibration anderror mandatory correction of the data processing model of multi-beam system by setting the underwater elevation ratiomeasurement steel plate effectively improves the accuracy of foundation bed laying.By comparing the multi-beam sweep datawith the results of penetration measurement,the results are basically consistent,which indicates that the multi-beambathymetry system meets the project needs.The high-precision detection technology of multi-beam bathymetry system forimmersed tunnel foundation construction can provide reliable reference data for underwater foundation construction.
作者
潘伟
朱永帅
成益品
刘迪
PAN Wei;ZHU Yong-shuai;CHENG Yi-pin;LIU Di(CCCC First Harbor Engineering Co.,Ltd.,Tianjin 300461,China;No.2 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Qingdao,Shandong 266071,China;Shenzhen-Zhongshan Link Management Center,Zhongshan,Guangdong 528400,China)
出处
《中国港湾建设》
2022年第11期50-53,79,共5页
China Harbour Engineering
基金
广东省重点领域研发计划项目(2019B111105002)。
关键词
深中通道
基床测深
多波束
基础施工
Shenzhen-Zhongshan Link
foundation bed bathymetry
multi-beam
foundation construction
