高速铁路接触网工程预算定额主材方案研究

Study on Main Material Scheme in Project Budget Quota for Overhead Contact Line System on High-speed Railway

高速铁路接触网工程中大量四新技术的采用,满足了高速铁路对接触网的各项技术要求。然而由于接触网零件种类繁多,给编制概预算带来了一定的困难。许多材料频繁抽换,使得工程造价水平波动较大。通过组合零件(或复合材料)定额的编制并建立数据库文件,可使概算编制过程中繁杂的接触网材料统计、标准不统一等情况得到较大的改善,可减少大量重复性的统计工作,提高工作效率,并有利于投资控制。组合零件定额也可在普速铁路中应用。接触网工程预算定额中,除了导线、支柱、硬横梁等作为主材之外,组合零件也可作为主材。

By using a lot of new technologies, every technical requirement on the overhead contact line system of the high-speed railway can be complied with. However, due to a wide range of the fittings of overhead contact line system, there are difficulties in preparing the project estimate and project budget. In addition, many materials may be often replaced frequently so that the project cost often fluctuates widely. However, through preparing the quota of the composite fittings （or composite material） and establishing the database file, the adverse situations, such as the complex statistical work of the material of overhead contact line system, and the non-unified standards, can be improved obviously. And then, a lot of repetitive statistical works can be reduced and the work efficiency can be improved, in favor of cost control. Also the quota of the composite fittings can be used for normal-speed railway. Furthermore, in the quota of project budget of overhead contact line system, not only the wires, pillars and the crossbeams belong to the main material, but the composite fittings can also be regarded as the main material.