지중매설 연성관의 관강성 추정Pipe Stiffness Prediction of Buried Flexible Pipes
- Other Titles
- Pipe Stiffness Prediction of Buried Flexible Pipes
- Authors
- 박준석; 김선희; 김응호
- Issue Date
- 2012
- Publisher
- 대한상하수도학회
- Keywords
- Pipe stiffness; Flexible pipe; Parallel plate loading test; Finite element analysis; 관강성; 연성관; 편평시험; 유한요소해석
- Citation
- 상하수도학회지, v.26, no.1, pp.13 - 20
- Journal Title
- 상하수도학회지
- Volume
- 26
- Number
- 1
- Start Page
- 13
- End Page
- 20
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/19671
- ISSN
- 1225-7672
- Abstract
- In this paper, we present the result of an investigation pertaining to the pipe stiffness of buried flexible pipes. Pipe stiffness (PS)formula for the parallel plate loading condition is derived based on the elasticity theory. Vertical and horizontal displacements are also derived. Vertical deflection is always larger than the horizontal deflection because some of energy due to overburden load is stored in the pipe but the difference is negligibly small. In the study, mechanical properties of the flexible pipes produced in the domestic manufacturer are tested and the results are reported in this paper. In addition, pipe stiffness is determined by the parallel plate loading tests and the finite element analysis. The difference between test and analysis is less than 14% although there are significant variations in the mechanical properties of the pipe material. Therefore, it was found that the finite element analysis can be used to predict the pipe stiffness instead of conducting parallel plate loading test.
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