From the two aspects of technology and economy, this article analyzes the cause of design change of water saving reconstruction project of Dongfanghong reservoir, to control investment amount on the condition that insuring practical applicability and construction quality and realize the optimization of construction costs.%从技术与经济两方面入手,对东方红水库节水改造工程的设计变更的原因进行分析,使之在保证实用性以及工程质量的前提下控制投资金额,达到优化工程造价的效果.
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