整平船高程系统的校核对施工精度的影响  

Influence of checking of elevation system of leveling ship on construction accuracy

作　　者：宋江伟 SONG Jiang-wei(No.2 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Qingdao,Shandong 266071,China;Tianjin Key Laboratory of Construction,Operation and Maintenance Technologies for Underwater Tunnels,Tianjin 300461,China)

机构地区：[1]中交一航局第二工程有限公司,山东青岛266071 [2]天津市水下隧道建设与运维技术企业重点实验室,天津300461

出　　处：《中国港湾建设》2022年第12期46-50,共5页China Harbour Engineering

基　　金：中国交建立项课题(2021-ZJKJ-05)。

摘　　要：整平船的高程系统对整平施工尤为重要,系统精度的高低直接影响整平施工和沉管隧道安装的精度。文中主要介绍全站仪对整平高程系统的校核方法和过程,针对校核数据采用分时段综合分析校核数据,进而研究影响校核精度的因素、时间段以及整平精度等,确定最优的校核方法和手段。通过该方法校核和系统修正后,整平精度得到了进一步提升,在大连湾海底隧道建设工程中,管节安装后首端高程最大偏差11mm,尾端最大偏差13 mm,贯通测量结果满足设计要求。该校核方法的成功应用,为后期整平施工以及类似系统的校核提供指导和借鉴。The elevation system of a leveling ship is particularly important for the leveling operation. The accuracy of the system directly affects the accuracy of leveling and the installation of immersed tubes. This paper gives mainly the method and process of a total station to check the leveling elevation system, analyzes comprehensively the checking data in different time periods according to the checking data, and then studies the factors, time periods and leveling accuracy that affect the checking accuracy, so as to determine the optimal checking method and means. With the checking method and the elevation system corrected, the leveling accuracy is further improved and, during the construction of Dalian Bay Subsea Tunnel project, the maximum deviation of the elevation at the head of an immersed tube is 11 mm after its installation and the maximum deviation at the tail is 13 mm, with its through-survey results meeting the design requirements. The successful application of this checking method can provide guidance and reference for later leveling operations and checking with similar systems.

关 键 词：整平船 高程系统 校核方法 沉管隧道 施工精度 

分 类 号：U612.334[交通运输工程—船舶及航道工程] U655.54[交通运输工程—船舶与海洋工程]