Reliability Analysis of Buried Flexible Pipe-Soil Systems

Reliability analysis of the buried flexible pipe-soil system is performed from three different failure criteria: (1) deflection; (2) buckling; and (3) wall thrust. The response surface methodology is used to establish approximate functional relationships between input variables and output responses and reliability analysis is performed using first-order reliability method approach. The available analytical solutions as well as the results of the numerical analysis are used in the reliability analysis and results are discussed. A comparison of results of the reliability analysis of the buried pipe-soil system in the light of available deterministic solutions indicated that the probabilistic approach, which considers variability in the input parameters provides a means of understanding of the performance of the buried pipe-soil system.

[1]  Cee Ing Teh,et al.  Reliability analysis of laterally loaded piles using response surface methods , 2000 .

[2]  Ulrich Luscher.  Buckling of Soil-Surrounded Tubes , 1966 .

[3]  Frazier Parker,et al.  Soil-structure interaction for deeply buried corrugated steel pipes Part I: Embankment installation , 2008 .

[4]  Douglas C. Montgomery,et al.  Response Surface Methodology: Process and Product Optimization Using Designed Experiments , 1995 .

[5]  A. M. Hasofer,et al.  Exact and Invariant Second-Moment Code Format , 1974 .

[6]  G. L. Sivakumar Babu,et al.  Reliability analysis of allowable pressure on shallow foundation using response surface method , 2007 .

[7]  M G Spangler,et al.  SOME CHARACTERISTICS OF THE MODULUS OF PASSIVE RESISTANCE OF SOIL: A STUDY IN SIMILITUDE , 1958 .

[8]  F. S. Wong,et al.  Slope Reliability and Response Surface Method , 1985 .

[9]  G. Baecher.  Reliability and Statistics in Geotechnical Engineering , 2003 .

[10]  Achintya Haldar,et al.  Reliability Assessment Using Stochastic Finite Element Analysis , 2000 .

[11]  G. L. Sivakumar Babu,et al.  Reliability Analysis of Deflection of Buried Flexible Pipes , 2006 .

[12]  David Stephenson.  Pipeline design for water engineers , 1989 .

[13]  A P Moser,et al.  Buried Pipe Design , 1990 .

[14]  Helmut Schweiger,et al.  Reliability Analysis in Geotechnics with Deterministic Finite Elements Theoretical Concepts and Practical Application , 2001 .

[15]  Milton E. Harr,et al.  Reliability-Based Design in Civil Engineering , 1987 .

[16]  Bak Kong Low,et al.  Probabilistic Stability Analyses of Embankments Based on Finite-Element Method , 2006 .

[17]  M G Spangler,et al.  THE STRUCTURAL DESIGN OF FLEXIBLE PIPE CULVERTS , 1938 .

[18]  Kok-Kwang Phoon,et al.  Towards reliability-based design for geotechnical engineering , 2004 .

[19]  R. S. Rao,et al.  Reliability measures for buried flexible pipes , 2005 .