PCCP单管输水压力值计算方法对比分析  

Analysis of calculation method of water-conveyance pressure in condition of PCCP switching to single pipe

作　　者：朱晓峰 薛同来[2] 韦怡冰 

机构地区：[1]北京市排水管理事务中心,100195 [2]北京工业大学北京市水质科学与水环境恢复工程重点实验室,100124 [3]北京市南水北调大宁管理处,102442

出　　处：《北京水务》2014年第5期33-37,共5页Beijing Water

摘　　要：南水北调中线工程全线通水后,在事故情况下需将PCCP管道切换到单管运行,可能造成管道局部压力变幅大,对管道造成破坏。选取PCCP管道沿线连通井和调压池为控制断面,应用恒定总流能量方程计算,将计算压力值与现场监测数据进行对比,偏差较小,能够满足现场监测要求,可为单管运行状况下的管道压力计算提供可靠的方法。After the middle route project of South-to-North water diversion project was completed, The PCCP switching to the single pipe operation may result in partial pressure increases and the pressure amplitude in case of accident, it is likely to cause damage to pipeline. This article selects PCCP unicom wells and the pressure regulating pool for the control section, Equation of constant total current is used to calculate, deviation of calculated values and field monitoring data is small, this calculation method can meet the requirements of field monitoring, and to provide a reliable method of pressure calculation for the single switch status

关 键 词：单管输水 压力值计算 管道切换 

分 类 号：TV134[水利工程—水力学及河流动力学]