广东电力Issue(11)：114-116,3.DOI:10.3969/j.issn.1007-290X.2014.11.023
南方电网首条海底电缆专用隧道之难点与创新
Difficulty and Innovation of the First Exclusive Subsea Cable Tunnel in Southern Power Grid
于俊岭 1孙强2
作者信息
- 1. 中国南方电网有限责任公司，广东 广州510600
- 2. 广东电网有限责任公司，广东 广州510060
- 折叠
摘要
Abstract
This paper introduces construction situation and implementation difficulty of cable tunnel engineering of 220 kV Huaneng Shantou power plant to Shantou Yuepu substation which is the first exclusive subsea cable tunnel in southern power grid. Aiming at characteristics of complicated geological conditions,shield tunnel with inner diameter of 2.0 m was adopt-ed,meanwhile,offshore ice-freezing method and whole section high-pressure method was innovatively used for construc-tion. Offshore ice-freezing method successfully solved inflow problem of shield tunneling machine and overcame difficulties such as difficult building of offshore steel platform,rock block obstacle when setting up freezing pipe,and so on. Whole section high-pressure method was successfully used not only in improving advancement speed of shield construction,but also effectively controlling shield gradient. Applications of these two methods ensured smooth completion of tunnel construction.关键词
隧道敷设/海底电缆/盾构法隧道/盾构工作井/海上冰冻法/全断面高气压法Key words
tunnel laying/submarine cable/shield tunnel/shield work shaft/offshore ice-freezing method/whole section high-pressure method分类
交通工程引用本文复制引用
于俊岭,孙强..南方电网首条海底电缆专用隧道之难点与创新[J].广东电力,2014,(11):114-116,3.
