The Study About Polyacrylic Fiber Concrete Used In Anchor Arm-shotcreting Support Of Tunnel

From the project of polyacrylic fiber concrete used in anchor arm-shotcreting support of LAOAN tunnel. The thesis mainly studies the mixture optimum design of polycyclic fiber concrete that is used for tunnels lining and response of this kind of concrete in structure internal force analysis.The state-of-the-art of polycyclic fiber concrete in home and foreign is represented in this thesis. Firstly the physical and mechanical nature of primary material in the project is putted to test. Adopting the method of uniform experiment and referencing ordinary concrete's mixture ratio, the test cubes is researched and the fiber concrete's optimization mixture ratio, which is used to tunnel's lining support is got.Finally the structure of tunnel's lining support is imitated for load respond by using finite element method. In order to get the predominance of polyacrylic fiber concrete to order concrete in the tunnel lining support, the ultimate bearing capacity of the structure that is built by various materials is analyzes. Above study establishes foundation for the further development into this question.