Optimal Choice Of Building Pile Foundation Type Proposal Based On Fuzzy Integral And Its Optimization Design

It is well known that building pile foundation design is reasonable or not will directlyaffect the safety, project cost and construction period. However, the type selection andoptimization design of the pile foundation has been increasingly become a research focusin the field of architectural design. Applying of fuzzy measure and fuzzy integral theory,the systematic research work is carried out based on the analysis of the complexity, fuzzycharacteristics of effect factors about pile foundation design proposal.Firstly, the fuzziness and complexity of the evaluation indexes for building pilefoundation type selection is analyzed. According to the theory of fuzzy measure andfuzzy integral, the multi-indexes decision selection optimization model of pile foundationis given based on improved Sugeno fuzzy integral.Secondly, using the analytic hierarchy process, λ-fuzzy measure and reasonableadjustment is given, and the multi-index decision selection optimization model of pilefoundation is constructed based on Choquet fuzzy integralThirdly, the effect of the two models is analyzed in comparison. the practicalengineering is given, and the result shows that the two models can be successfully usedto optimize the pile foundation design proposal.Finally, the constrained nonlinear programming model for optimal design of pilefoundation is established. Taking the selected pile type as an example, the application ofthe model is verified. The result shows that the given model not only can ensure thesafety of pile foundation, but also can achieve the goal of saving construction materialsand reducing the project cost.The research result of this dissertation has a certain theoretical value for the selectionand optimization design of pile foundation. At the same time, the research result has certain actual application value for improving the design of pile foundation.