Optimization-design Of The Mixtureratio Of Nanshan Tunnel's Secondary Lining Concrete And Finite Element Analysis

The main studying contents of this thesis are optimization-design of the mixture ratio of tunnel's secondary lining concrete and internal structural analysis. First, I elaborate domestic and international development condition of concrete. Second, I make experiment researches to physical and mechanical property of concrete's raw materials of Jinzhou-Nanshan Tunnel. After that, I use the design methods of uniform experiment and ordinary concrete's mixture ratio to make plenty experiment researches to the test cubes, so that I get concrete's optimization mixture ratio, which is used to tunnel's secondary lining support. Final, I use the finite element method to imitate the loaded reaction to secondary lining, so that I deduce ultimate bearing capacity and related elements of the structure. Therefore, I get the adaptation ability to geological condition of secondary lining's structural form, which establishes foundation for the further development into this question.