预计总成本作为成本计划管理体系的一部分非常重要，认真做好施工预计总成本的编制工作，有助于促进项目成本控制能力的提高，可以取得较好的经济效益。重点介绍了TBM施工预计总成本的编制原则、编制内容，结合工程实例阐述了TBM施工预计总成本的编制方法。

As a part of the cost planning and control system, the estimated total cost is of great importance. Serious preparation of the estimated total cost is helpful to the improving of the project cost control capability and thus helpful to the achieving of better economic benefits. In the paper, the principle, contents and importance of the preparation of the estimated total cost for TBMdriven tunnel works are presented on basis of TBMdriven tunnel work cases.