结合重庆奉云高速公路B18合同段工程变更的实践经验,深入阐述了工程变更的理念及策略,详细介绍了通过优化及变更设计方案、施工方案进而规避风险、加快进度、创造效益,实现成本的有效管理的过程.对同种条件下公路工程项目成本管理具有指导作用.%Combined with the alteration of engineering of NO:B18 contract section of the highway from Fengjie to Yunyang in Chongqing, the artide elaborated the philosophy and strategy of the alteration of engineering, detailed the process of how to avoid risks, speed up progress, create efficiency and then achieve cost-effective management by optimal or change the design and construction program, which provided an guidance to the highway project's cost management under the same conditions.
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