The author of the article introduces the conception of unbalanced bids and the kinds of unbalanced bids. And then, from the contractors'point of view and based on bill of quantities, the author constructs a linear programming model, which maximizes the present value of actual payment.Finally, taking a concrete project as an example, an optimal solution of unbalanced bids is obtained.%介绍了不平衡报价的概念及不平衡报价的类型.并从承包商的角度出发,在清单计价条件下,建立了以工程实际付款现值最大化为目标函数的线性规划模型,并配以具体的工程实例求得不平衡报价的最优解.
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