TY - JOUR
T1 - Factors influencing the behavior of buried pipelines subjected to earthquake faulting
AU - Abdoun, Tarek H.
AU - Ha, Da
AU - O'Rourke, Michael J.
AU - Symans, Michael D.
AU - O'Rourke, Thomas D.
AU - Palmer, Michael C.
AU - Stewart, Harry E.
N1 - Funding Information:
This work was supported primarily by the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Program of the National Science Foundation under Grant nos. CMS-0421142, CMS-0086555, and CMS-0217366. Any opinions, findings and conclusions or recommendations expressed herein are those of the authors and do not necessarily reflect the views of the National Science Foundation. This project is part of a collaborative project involving full-scale buried pipe tests at Cornell University and companion centrifuge tests at Rensselaer. The authors also acknowledge lab support personnel at the Rensselaer Geotechnical Centrifuge Center and at the Cornell University Lifeline Facility for their help in conducting tests presented in this paper.
Funding Information:
Over the past 30 years, researchers have tried to understand the complex behavior of buried pipelines subjected to ground ruptures most often via numerical simulation. Unfortunately, there was a lack of laboratory tests, either full-scale or small-scale centrifuge tests, which are needed to validate and confirm numerical simulation assumption and results. Fortunately, a recent NEESR-SG grant (Grant no: CMS-0421142) provided an opportunity for Rensselaer Polytechnic Institute and Cornell University to conduct a comprehensive laboratory investigation on the behavior of buried pipeline subjected to ground faulting. The tests utilized state-of-the-art testing equipment and cutting-edge sensing technologies. Both full scale and centrifuge tests were conducted to simulate the situation of buried pipelines subjected to ground faulting. Because of cost and other considerations, more centrifuge tests were conducted than full-scale tests. Some centrifuge tests were used to directly compare with the full-scale testing, while others were used to study the influence of various parameters.
PY - 2009/3
Y1 - 2009/3
N2 - Seismic ground faulting is a severe hazard for continuous buried pipelines. Over the years, researchers have attempted to understand pipe behavior, most frequently via numerical modeling and simulation. However, there has been little, if any, physical modeling and tests to verify the numerical modeling approaches and assumptions. This paper presents results of five pairs of centrifuge tests designed to investigate the influence of various factors on the behavior of buried high-density polyethylene (HDPE) pipelines subjected to strike-slip faulting. Parameters considered are the soil moisture content, fault offset rate, relative burial depth (H/D), and pipe diameter. The centrifuge test results show that pipe behavior, specifically pipe strain, is nominally not affected by the soil moisture content and fault offset rate when the pipe is subjected to strike-slip faulting. On the other hand, the burial depth ratio (H/D) and pipe diameter influence peak pipe strain, and in some cases, the ground soil failure pattern.
AB - Seismic ground faulting is a severe hazard for continuous buried pipelines. Over the years, researchers have attempted to understand pipe behavior, most frequently via numerical modeling and simulation. However, there has been little, if any, physical modeling and tests to verify the numerical modeling approaches and assumptions. This paper presents results of five pairs of centrifuge tests designed to investigate the influence of various factors on the behavior of buried high-density polyethylene (HDPE) pipelines subjected to strike-slip faulting. Parameters considered are the soil moisture content, fault offset rate, relative burial depth (H/D), and pipe diameter. The centrifuge test results show that pipe behavior, specifically pipe strain, is nominally not affected by the soil moisture content and fault offset rate when the pipe is subjected to strike-slip faulting. On the other hand, the burial depth ratio (H/D) and pipe diameter influence peak pipe strain, and in some cases, the ground soil failure pattern.
KW - Buried pipeline
KW - Centrifuge
KW - Fault offset rate
KW - Influencing parameters
KW - Permanent ground deformation
KW - Pipe diameter
KW - Relative burial ratio
KW - Soil moisture content
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U2 - 10.1016/j.soildyn.2008.04.006
DO - 10.1016/j.soildyn.2008.04.006
M3 - Article
AN - SCOPUS:58649093960
SN - 0267-7261
VL - 29
SP - 415
EP - 427
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
IS - 3
ER -