Decompose-Collaborated Evolution Optimum Design of Foundation Pit Engineering

Foundation pit engineering is a complex system with multi-tier and multi-parameter. Since the scheme design and detail structure design belong to two different tiers of its optimum design, the foundation pit engineering´s optimum design needs to combine these two tiers for co-optimization. Thus, this paper offered mathematical model for optimum design of foundation pit engineering´s scheme, detail, and sub-detail. By decomposing foundation pit engineering´s optimum design system into a few low-dimensional, sub-system corresponded, relatively independent sub-optimizers and a low-dimensional system optimizer for global co-optimization, it aims not only to construct a decompose-collaborated evolution model for foundation pit engineering based on genetic algorithm but also to design and realize a distributed co-evolution system to improve the convergence speed and global searching ability, and gain the better solutions.