Long-term Pipe Stiffness of Various Plastic Jacking Pipes

in International Symposium (oral presentation paper), 國際研討會(全文口頭發表)
標題Long-term Pipe Stiffness of Various Plastic Jacking Pipes
出版類型國際研討會(全文口頭發表)
出版年度2004
AuthorsChiwan Wayne Hsieh, 謝啟萬
出版日期Dec 14 2005 12:0
會議地點Hamburg
其他編號0000
中文摘要

The long-term deflection of PVC and ABS jacking pipes under parallel-plate loading
mechanism was investigated according to ASTM D2412 standard test method. The nominal
The long-term deflection of PVC and ABS jacking pipes under parallel-plate loading
mechanism was investigated according to ASTM D2412 standard test method. The nominal
inside diameter of the test pipes were 300 and 400mm. Based upon current limited test data,
long-term pipe stiffness value can be approximated as a linear function on a semi-log
coordinate system up to 3000 hours. For the test 300 and 400 PVC pipes, they consisted
similar pipe stiffness values, however, 400 mm PVC shown almost 35% greater deflection in
comparing with 300 PVC pipe under similar test loading conditions. The pipe stiffness of 300
mm PVC pipe is about 2.5 times higher than that for 300 mm ABS pipe; however, the deflection
of ABS pipe is only about 30% higher than that for PVC pipe.

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