一个管道工程投资的技术经济指标

提出了“吨管材投资”这一技术经济指标，介绍了管道工程投资中占较大比例的管材费的计量指标，对国内外管道工程投资技术指标进行了对比，认为将单位投资换算成吨管材投资，对不同管径的管道工程而言，其指标值基本一致，且具有相比直观，相对准确，运用方便和管道重量易于计算的特点。

Ton-Pipe Investment"--An Applicable Techno-economic Index

The paper puts forward a "ton-pipe investment" economic index,introduces the measuring index of pipe cost that covers primary proportion in the investment of pipeline engineering,and compares the tech-no-economic indexes of investment in the pipeline engineering at home and abroad. The paper considers that the index of "ton-pipe investment" converted from the unit investment is more intuitional,relatively accurate,easy to use and calculate the pipe weight for different diameters'pipes used in pipeline construction.