Development of a Laboratory Test to Identify the Scour Potential of Soils at Piles Supporting Offshore Structures.

reportActive / Technical Report | Accession Number: ADA193332 | Open PDF

Abstract:

This report describes the development of a test to investigate the scour potential of soils at the interface of piles that support offshore structures. These soils are subjected to cyclic loading due to wave action. The test is called the Pile-Soil Scour Potential Test PSSP. The mechanism of scour around the pile-soil interface is discussed. Due to the complicated interactions between pile, soil, and fluid at the interface, this study is primarily directed toward an experimental approach. In addition to the use of the PSSP test, the existing pinhole test was used to study the scour potential of various soils. A series of PSSP tests were conducted for examining the scour resistance of soils. The influences of variables such as soil properties, loading frequency, pile diameter, and duration in the scour process were studied by use of the PSSP test. The most significant findings of these tests are analyzed. A method of predicting the scour potential is suggested and further studies are recommended to improve the method.

Author(s):
Wang, Shin-tower ; Reese, Lymon C.
Author Organization(s):
TEXAS UNIV AT AUSTIN GEOTECHNICAL ENGINEERING CENTER
Descriptive Note:
Final rept.,
Pagination:
0083

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
WES/MP/GL-88-3
Contract/Grant Number(s):
DACW39-82-C-0014
Monitor Series:
88-3
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_4.6_Engineering; JCA_1_Force Support; JCA_5.3_Planning; JCA_1.2_Force Preparation; JCA_6.4.1_Secure Information Exchange; JCA_1.2.7_Experimentation; JCA_6_Net Centric; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_1.2.3_Educating; JCA_1.2.5_Lessons Learned; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.4_Information Assurance
Modernization Areas:
Fully Networked C3
Communities of Interest:
Weapons Technologies
Descriptor(s):
*PILE STRUCTURES, *SOIL EROSION, CYCLES, DIAMETERS, EXPERIMENTAL DATA, FREQUENCY, INTERFACES, LABORATORY TESTS, LOADS(FORCES), OFFSHORE STRUCTURES, RESISTANCE, SOILS, STRUCTURES, SUPPORTS, WAVES, UNDERWATER, CLAY, BOTTOM
Field(s)/Group(s):
Soil Mechanics
Keyword(s):
*Scour(Erosion), PSSP(Pile Soil Scour Potential)
Report Date:
1988 Feb 01