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Paper Information

Title: 

PHYSICAL MODELING OF CATENARY RISER-SOIL-INTERACTION

Type: PAPER
Author(s): HAJIALILUE BONAB M.*,BOLTON M.D.,WHITE D.J.
 
 *FACULTY OF CIVIL ENGINEERING, UNIVERSITY OF TABRIZ, TABRIZ, IRAN
 
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:  2006Volume 7
 
 
Abstract: 

ONE OF THE IMPORTANT TOPICS IN CATENARY RISER DESIGN IS THE SCR TOUCH DOWN REGION AND ITS INTERACTION WITH THE SEABED. TWENTY-TWO PIPE-SOIL INTERACTION TESTS HAVE BEEN CARRIED OUT. THE SOIL USED IN THE STUDY IS A CLAY FROM OFFSHORE WEST AFRICA. THIS UNUSUAL MATERIAL, WAS ARTIFICIALLY PRE-CONSOLIDATED UNDER SURCHARGE AND THEN HOMOGENIZED. ALL TESTS WERE CARRIED OUT ON A STIFF, ALUMINIUM PIPE SECTION. PORE PRESSURES WERE MEASURED AT THE PIPE-SOIL INTERFACE AT A NUMBER OF LOCATIONS. A LOAD CELL ON THE PIPE SUPPORT PLATES WAS USED TO OBTAIN THE NET SOIL FORCES P (HORIZONTAL) AND Q (VERTICAL) ON THE PIPE. THE FORCES P AND Q DUE TO HORIZONTAL SWEEPING H FROM THE CENTRE OF A PREFORMED TRENCH OF WIDTH 3D AND DEPTH H, WERE THE FOCUS OF INVESTIGATION IN THESE TESTS.

 
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