On the Methods of Fuzzy Evaluation and Analytic Hierarchy Process to Determine the Optimum Design Target and Objective Function of the Foundation Pit Engineering

Establishment of the optimal objective function is the first and a vital step for optimum design. The foundation pit engineering design is a procedure of multi-objective optimization and multi-objective decision. Some of these objectives can be quantitatively calculated, while others cannot. In order to make a comprehensive analysis of the effects of various factors on the optimum design of foundation pit engineering, this paper introduced the methods of fuzzy evaluation and analytic hierarchy process to construct the optimal objective function of optimum design of foundation pit engineering. It can take a global view of the state or character for foundation pit engineering, and then construct a reasonable target for the following optimal work to make the results more reliable.