南水北调深挖方段渠道渗透破坏机理研究

Study on Mechanism of Channel Infiltration and Failure of Deep Excavation Section in South-to-North Water Diversion

运用ABAQUS软件实现对渗透机理进行探究,以南水北调中线工程中的输水渠道为研究对象,对典型部位选取合适断面进行定量化研究。通过数值仿真计算研究表明,深挖方渠段在运行期的强度以及防渗满足运行要求,在运行期整体结构稳定,在运行期加大水位工况下,渠段仍旧安全可靠。

ABAQUS is used to explore the seepage mechanism.Taking the water conveyance channel in the middle line of South-to-North Water Diversion Project as the research object,the appropriate section is selected for quantitative research on typical parts.The numerical simulation results show that the strength and seepage control of the deep excavation square canal section meet the operation requirements during the operation period,and the overall structure is stable during the operation period.Under the condition of increasing water level during the operation period,the canal section is still safe and reliable.