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南水北调工程PCCP竖向土压力计算分析
Analysis Method of Vertical Soil Pressure on the Top of Prestressed Concrete Cylinder Pipe
【Author】 LIU Jin;Wang Dongli;Yang Jinxin;Hu Huiqing;Beijing Institute of Water;
【机构】 北京市水利规划设计研究院;
【摘要】 南水北调中线工程采用了双排4m直径的超大口径PCCP,其中约有40%长度管顶覆土厚度5m以上,最大设计覆土厚度10m。本文论述了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。
【Abstract】 The prestressed concrete cylinder pipe(PCCP) with diameter of 4 m(including two tunnels) was used in the South-to-North Water Diversion project in China.It is very significant to analyze vertical soil pressure of PCCP.The calculation methods of the vertical soil pressure was dissertated.Finally,a appropriate formulas used to calculate vertical soil pressur for the big diameter PCCP pipe were recommended.
【关键词】 南水北调;
PCCP;
填埋式管道;
土压力计算;
【Key words】 the South-to-North Water Transfer Project; PCCP; Embankment; Vertical Soil Pressure;
【Key words】 the South-to-North Water Transfer Project; PCCP; Embankment; Vertical Soil Pressure;
- 【会议录名称】 北京市南水北调工程优秀论文集
- 【会议时间】2011-05
- 【分类号】TV68