Non-linear space theory and method for excavation engineering and application

In this paper, first, the principle of the non-linear space theory and its method for excavation engineering are described. Then, the software called "SUPER-STAR" based on the non-linear space theory and its method is introduced, which is used in the design of excavation engineering in China. Finally, five case histories of different kinds of excavation are examined, and the comparison of computed values with measured ones in these five cases shows that the theory and its method presented in this paper are reasonable and feasible.