铁路施工用水方案比选研究-《高速铁路技术》

文章信息/Info

Title:: Study on Comparison and Selection of Water Use Schemes for Railway Construction

Author(s):: YUE Yang; China Railway Design Corporation, Tianjin 300142 China

Keywords:: construction water|water use scheme|water price function|unit price of water transportation|engineering investment

摘要:: 在铁路工程建设中，合理的施工用水方案对水电价分析、编制概预算有着重要的影响。本文对水车地表水拉水、软管运水、自来水管运水、自行打井运水、农村自备井打井运水5个用水方案进行数学建模，得出了不同运水方案的综合运水单价函数表达式。并以2 km隧道供水为例，得出不同运距条件下投资最省的用水方案，进而形成具有普适性的用水方案优化设计方法。最后通过工程实例验证了水价函数的适用性。本文求得的水价函数表达式适用于快捷、准确地针对具体工点进行用水方案比选，得出最优用水方案，可为控制工程投资、提升编制概算的精确度提供数据支撑。

Abstract:: In railway engineering construction, the reasonable construction water scheme has an important influence on the water and electricity price analysis and the budget estimate preparation. In this paper, mathematical models are established for 5 water use schemes: surface water pumping by waterwheel, water transportation by hose, water transportation by tap water pipe, water transportation from wells drilled by construction contractors and water transportation from self-drilled wells in rural areas, and the comprehensive water transportation unit price functions for different water transportation schemes are obtained. Taking the water supply of 2 km tunnel as an example, the water use scheme with the least investment under different transport distances is obtained, and then a universal optimization design method of water use scheme is formed. Finally, the applicability of the water price function is verified by engineering examples. The water price function obtained in this paper is suitable for quick and accurate comparison of water use schemes for specific construction sites to obtain the optimal water use scheme, and can provide data support for controlling project investment and improving the accuracy of budgetary estimate preparation.