大型盾构费用构成及分摊研究

Research on Cost Composition and Allocation of Large Shield Tunneling Machines

大型盾构采购费用庞大,使用寿命均超出一项工程的建设周期,从而形成了在一个工程中盾构分摊费用的多少以及如何计列的问题。详细介绍了盾构费用的构成,分析了合理的盾构折旧费用或分摊费用。提出了双倍余额递减形式的盾构折旧法,可供地下工程建设中大型机械经济分析的参考。

For large shield tunneling machines(STMs),their purchasing costs are huge and their service life often exceeds the construction period of a project,which leads to the problem,namely how to allocate and expense the cost of STMs in a particular project.This article details the composition of STM cost and analyzes reasonable depreciation or allocation of STM cost.It proposes the double declining balance method for STM cost depreciation,which proves a useful reference for economic analysis of large machinery in undergrounding engineering construction.