| The construction of municipal roads is a comprehensive system engineering, ofwhich the parts are not only related with each other, but also restricted with each other,and the relationship of them is anfractuous. The construction scheme plays animportant role in the whole construction process. It has direct influence on the quality,safety, environment, plan and cost of a metro project that construction technologyoption is better or not. The optimization for project of municipal road is a multivariateand multi-objective and complex system decision problem, including quantitativeindex and qualitative index, which is involved in many aspects. So based oncharacteristics of concrete municipal road project, to establish the scientific,comprehensive optimization evaluation index system of construction scheme, todetermine a rational optimization decision method of transit project consecrationscheme, which has theoretical study and practical application value.In this paper, many key theories including network planning technique, virtualtechnology, fuzzy comprehensive optimization technology and grey relationalanalysis technology are introduced into the construction scheme of municipal roadengineering. The optimization choice for the construction scheme of municipal roadengineering is a multi-objective decision problem, including quantitative index andqualitative index, which is involved in many aspects. Based on characteristics ofconcrete scheme, the fuzzy multi-attribute decision model of grey relational analysisof construction schemes, considering time, cost, quality, safety and environment, ispresented. The construction of network planning technique, fuzzy comprehensiveoptimization and the grey theory are applied to the optimization of constructionscheme of municipal road engineering. The paper takes Yang JiaGou Bridge forexample. By considering the five targets of construction, which are time, cost, quality,safety and environment, fuzzy set is defined and evaluated with grey relation analysis.The fuzzy optimization decision model of construction schemes, considering time,cost, quality, safety and environment, is presented. Finally, technology of construction dynamic visual simulation is studied. By applying virtual dynamic optimizationmanagement system, the system can present the critical process of Yang JiaGouBridge providing construction simulation results more intuitively and producingsocial benefit and economic benefit. |
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