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Paper Information

Title: 

THE ANALYSIS OF MARINE PIPELINE STABILITY

Type: PAPER
Author(s): MOGHISEH AMIR,RIAHI HOMAUON
 
 
 
Name of Seminar: INTERNATIONAL CONFERENCE ON COASTS, PORTS AND MARINE STRUCTURES (ICOPMAS) PORTS & MARITIME ORGANIZATION
Type of Seminar:  CONFERENCE
Sponsor:  PORTS AND MARITIME ORGANIZATION
Date:  2010Volume 9
 
 
Abstract: 

1. INTRODUCTION: DURING RECENT DECADES, OFFSHORE PIPELINES HAVE BECOME AN EFFICIENT MEANS OF TRANSPORT FOR OIL AND GAS. WHEN PIPELINES ARE INSTALLED UPON SEABED AND SUBJECTED TO WAVE LOADING, THERE EXISTS A COMPLEX INTERACTION BETWEEN WAVES, PIPELINES, AND SEABED. AN INTERACTION MODEL OF THE CONTACT BETWEEN THE PIPELINE AND THE SEABED ARE OFTEN REFERRED TO AS A PIPE SOIL INTERACTION MODEL. THE PIPE SOIL INTERACTION MODEL CONSISTS OF SEABED STIFFNESS AND EQUIVALENT FRICTION DEFINITION TO REPRESENT THE SOIL RESISTANCE TO MOVEMENT OF THE PIPE. THE EQUIVALENT FRICTION IS MAINLY BASED ON COULOMB FRICTION (SAND), COHESION (CLAY) OR A COMBINATION OF THE TWO, THE SOIL DENSITY. ALSO THE WEIGHT OF CONCRETE COATING IS A DECISIVE FACTOR FOR THE ACCOMPLISHMENT OF SATISFACTORY PIPELINE STABILITY. IN THIS PAPER THE DYNAMIC STABILITY OF MARINE PIPELINE ON THE SEA BED IS INVESTIGATED.

 
Keyword(s): MARINE PIPELINE, RESONANCE, BENDING STRESS, VIBRATION BEHAVIOR
 
 
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