Optimization Study of Subway Station Underground Excavation Construction Method Based on Fuzzy Theory

Abstract

Undercutting method is now adopted in prosperous cities or complex areas with all kinds of surroundings, but this method has great risks. Undercutting method includes many ways, it is important to choose a rational one in one certain project. Based on the design and the construction, this paper analyzes the CRD method, the PBA method, the Middle Hole Construction method and the Double Side Drift method which were widely used in China. The paper takes the safety, the cost and the construction time into account, using Comprehensive Evaluation and Fuzzy Mathematics to make sure that the chosen construction method is the most feasible one. Through analysis we could ensure that the construction of the Metro engineering is safe, economic and quick.

Summary of Application of Fuzzy Mathematics in Construction Project Management

“…Analyze the uncertainty in the construction project from an overall perspective, so as to provide a more systematic management strategy. Wang, X. Geng, D. [27] combines fuzzy mathematics with analytic hierarchy process, uses fuzzy risk judgment matrix to realize the risk occurrence probability and risk loss of risk factors, and comprehensively considers the risk occurrence probability and the importance of risk loss. It avoids the disadvantages of too many factors and the difficulty in assigning weights, and avoids the one-sidedness of single-factor decision-making and decision-making errors caused by human subjective consciousness.…”