北京交通大学学报2012，Vol.36Issue(1)：30-35,6.
海底隧道施工过程中初期支护受力特征试验研究
Laboratory investigation on the mechanical characteristics of primary support in subsea tunnel under condition of construction process
摘要
Abstract
Based the Xia Men Xiang An sea tunnel project, the distribution of water pressure and force characteristics around the lining are studied under the effect of the water pressure and soil pressure during subsea tunnel of construction process by using the similarity model test. According to the research results, Through simulating the procedure of construction under condition of both water pressure and soil pressure, it is found that the influence scale of tunnel excavation is about 2 times of the diameter of tunnel, meanwhile, the water pressure and the stress will become stable after forward excavation length equals to the diameter of the tunnel. In the variable water head, the control of drainage plays a vital role in adjusting water pressure behind the primary support and ensuring the safety of the tunnel structure. The conclusions of model test are consistent with that of site situation.关键词
海底隧道/施工过程/水压力/结构受力/模型试验Key words
subsea tunnel/ construction process/ water pressure/ mechanical characteristics of structure/ model test分类
交通工程引用本文复制引用
李健,谭忠盛,王秀英,杜朝伟..海底隧道施工过程中初期支护受力特征试验研究[J].北京交通大学学报,2012,36(1):30-35,6.基金项目
国家自然科学基金资助项目(50878019) （50878019）
