中国工程科学2017，Vol.19Issue(6)：52-60,9.DOI:10.15302/J-SSCAE-2017.06.008
基于全寿命劣化分析的海底盾构隧道管片安全保障对策研究
Safety Guarantee Measures for Subsea Shield Tunnel Segments Based on Life Cycle Deterioration Analysis
摘要
Abstract
The segment joint is the weak link in the lining structure of subsea tunnels, as it is under the continuous coupled effect of high water pressure and the corrosive seawater environment. If its performance deteriorates, it will seriously affect the safety of the lining structure of entire subsea shield tunnels. Based on an analysis of existing research into segment joint erosion and deterioration, a tunnel service time factor is introduced. Considering the influence of seawater pressure infiltration and chloride ion erosion and migra-tion, a model analyzing the erosion and deterioration of the segment joint over its whole life cycle was subsequently established. The law governing the progressive erosion and deterioration of the segment joints of subsea tunnels over the entire life cycle was analyzed. The effects of seawater pressure and ion concentration on the erosion, deterioration, and steel corrosion of segment joints were studied. Based on the analysis of erosion and deterioration over the entire life cycle, economic and rational measures to ensure the long-term safety of the segment lining structure of subsea shield tunnels were proposed.关键词
盾构隧道/安全保障/劣化分析/离子侵蚀/管片接头Key words
shield tunnel/safety guarantee/deterioration analysis/ion erosion/segment joint分类
交通工程引用本文复制引用
刘四进,何川,孙齐,封坤..基于全寿命劣化分析的海底盾构隧道管片安全保障对策研究[J].中国工程科学,2017,19(6):52-60,9.基金项目
中国工程院咨询项目"交通基础设施重大结构安全保障战略研究"(2015-XZ-28) （2015-XZ-28）
国家重点研发计划(2016YFC0802201) （2016YFC0802201）
国家自然科学基金资助项目(51578462) （51578462）
