Study On Structural Waterproofing And Drainage Technology Of Sub-sea Tunnel Located Xiamen Xiangan

With the development of economic society of our country, we will construct several subsea tunnels in decades to come. To construct tunnels submarine under constant high water head, rationality and reliability of waterproof and drainage system is the key to succeed and the main contents of control operating cost.Technology of water proofing and discharge in subsea tunnel is a frontier science which gathers construction engineering and chemical engineering in integral whole, with many problems to be researched. Besides some concrete conditions in several engineering practice, theoretically problem is to be awaiting solution. Conclusively, subsea tunnel waterproof and drainage is incomplete ripeness in design and construction,with no relative unified standard to guide. We mainly depend on existing standard rules, reference foreign mature technical methods.So systematic and comprehensive research is needed.Taking the first subsea tunnel XiaMen-XiangAn Sub-sea tunnel as the background,and with the method of data analysis, numerical simulation analysis and field investigation and so on, we do research on waterproof principles and treatment measures to leakage. The main research contents are listed as follows:(1)By investigating examples of subsea tunnels obroad widely and the design of structural water-proof technology for high hydraulic pressure mountain tunnels and subway tunnels in water abundant area of our country ,we detailed description research directions and research results of technology of water proofing and discharge in subsea tunnel nowadays, and put forward the framework of waterproof and drainage research;(2)The principle of structural water-proofing and draining technology for XiaMen-XiangAn Sub-sea tunnel was analyzed and discussed, and also the standard of water discharge. Some advice on the water proofing and discharge of XiaMen-XiangAn Sub-sea tunnel was given.(3)The harmful effects of various groundwater on sub-sea tunnel was summarized and the water inflow in XiaMen-XiangAn Sub-sea tunnel was Predicted;(4)Research on the Stress Characteristics ability of primary support in bid section of XiaMen-XiangAn Sub-sea tunnel;the safety factor of primary support is attained.(5)Research on the engineering measures of waterproofing, drainning and water plugging, the treatment of detail construction and the durability of water proofing and discharge system.(6)By investigating the water leakage of sub-sea tunnel combined with the construction site, this thesis analyzed the cause of leakage and put forward measures and suggestions on treatment of leakage;According to the research results above, comprehensive technology and measures on waterproof and drainage was put forward comprehensively...