南水北调中线工程PCCP竖向土压力计算分析  

Analysis and calculation on vertical earth pressure from PCCP pipeline of Mid-route of South-to-North Water Transfer Project

作　　者：刘进[1] 王东黎[1] 杨进新[1] 忽惠卿[1] 

机构地区：[1]北京市水利规划设计研究院,北京100048

出　　处：《水利水电技术》2009年第12期38-42,共5页Water Resources and Hydropower Engineering

摘　　要：南水北调中线工程采用了双排直径4 m的超大口径PCCP,其中约有40%长度管顶覆土厚度5 m以上,最大设计覆土厚度10 m。文中论述了PCCP在不同铺设方式条件下竖向土压力的计算方法,并以南水北调中线PCCP管道为例,给出不同铺设方式的计算结果及各公式的适用条件。最后将计算值与实测数据进行比较。The double pipelines of pre-stressed concrete cylinder pipe （PCCP） with the super large diameter of 4 m are adopted in the Mid-route of the South-to-North Water Transfer Project; among which 40% of the length covered with the earth of 5 m thick and the mix. designed earth coverage thickness of 10 m. The calculation method of the vertical earth pressure under various placing conditions for the PCCP pipeline is described herein, and then the calculation results of the placement modes and all the suitable conditions for all the formulas concerned are also presented by taken the construction of the PCCP pipeline of the Mid- route of the South-to-North Water Transfer Project as the study case. The comparison is finally made between both the calculated values and the measured data.

关 键 词：南水北调中线工程 PCCP 填埋式管道 土压力计算 

分 类 号：TV682.2[水利工程—水利水电工程] TU432[建筑科学—岩土工程]