Taking the modernized construction in China affected by the lagging development of the infrastructure development as the engineering background,the paper investigates and researches the infrastructure construction at home and abroad,and points out the research on the project group theory and its research methods,so it has importance theoretic and practical value to have the investment control of the urban infrastructure and enhance the urbanization development.%以我国现代化建设受基础设施发展滞后的影响为背景,通过对国内外基础设施建设的情况进行调查研究,提出了项目群理论的研究内容及研究方法,对城市基础设施投资控制与推动城市化发展具有重要的理论和实践价值。
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