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The Resource Performance of Steel Pipelines Backfilled with Controlled Low-Strength Material (CLSM) under Seismic Wave Propagation and Reverse-Slip Fault Rupture, by Prapon Somboonyanon

Performance of Steel Pipelines Backfilled with Controlled Low-Strength Material (CLSM) under Seismic Wave Propagation and Reverse-Slip Fault Rupture, by Prapon Somboonyanon

Creator
Author
Contributor
Summary
Seismic events may drastically damage buried pipelines affecting economy and public safety. Traditionally, buried pipelines are bedded and backfilled with compacted soils, which is labor intensive, time consuming, and could be a safety hazard to workers. Many studies have shown that achieving a proper compaction level around pipelines can be a difficult task. Improper compaction can greatly reduce performance of the pipelines under loads. Controlled Low-Strength Materials (CLSM) is a group of cementitious materials that can be used as an alternative to compacted soils to backfill pipelines. These mixtures are highly flowable in their fresh state and are solid in the final state providing a uniform support around pipelines. Although there is considerable research about the advantages of using CLSM to backfill pipelines from construction point of view, there is no research on the performance of pipelines embedded in CLSM subject to seismic loads. In this research, 3D FEA was conducted using ABAQUS software to determine the performance of buried steel pipes backfilled with CLSM when subjected to seismic wave propagation and reverse-slip fault rupture. Under seismic wave propagation, the study started by evaluating the ASCE guidelines and its design limitations. Then, several FE model parameters were evaluated for their effects on FE model results. After setting the model parameters to match the predicted stresses by the ASCE guidelines, the developed FE model was used to evaluate the pipe seismic performance with various soil and CLSM backfill materials. Both linear and non-linear material behavior were considered in this study. Under seismic fault rupture, the study developed a 3D FE model matching results from a full-scale testing performed by others. Various FE model parameters were also evaluated. Then, the developed FE model was utilized to determine the pipe seismic performance of CLSM mixture compared to compacted soil backfill. Results indicated that for 3D FEA pipe seismic analysis, FE model parameters can have a significant effect on the results. In addition, with a proper design buried steel pipe embedded in CLSM backfill with all its inherent advantages can perform as well as or better than soils in seismic prone areas
Language
eng
Work
Publication
Extent
1 online resource (125 pages)
Note
  • "A dissertation in Civil Engineering and Geosciences."
  • Advisor: Ceki Halmen
  • Vita
Contents
  • Introduction
  • Literature review
  • Buried pipelines subject to seismic wave propagation
  • Buried pipelines subject to reverse-slip fault rupture
  • Summary
Instance
Label
Performance of Steel Pipelines Backfilled with Controlled Low-Strength Material (CLSM) under Seismic Wave Propagation and Reverse-Slip Fault Rupture
Title
Performance of Steel Pipelines Backfilled with Controlled Low-Strength Material (CLSM) under Seismic Wave Propagation and Reverse-Slip Fault Rupture
Statement of responsibility
by Prapon Somboonyanon
Creator
Contributor
Author
Degree supervisor
Subject
Genre
Language
eng
Summary
Seismic events may drastically damage buried pipelines affecting economy and public safety. Traditionally, buried pipelines are bedded and backfilled with compacted soils, which is labor intensive, time consuming, and could be a safety hazard to workers. Many studies have shown that achieving a proper compaction level around pipelines can be a difficult task. Improper compaction can greatly reduce performance of the pipelines under loads. Controlled Low-Strength Materials (CLSM) is a group of cementitious materials that can be used as an alternative to compacted soils to backfill pipelines. These mixtures are highly flowable in their fresh state and are solid in the final state providing a uniform support around pipelines. Although there is considerable research about the advantages of using CLSM to backfill pipelines from construction point of view, there is no research on the performance of pipelines embedded in CLSM subject to seismic loads. In this research, 3D FEA was conducted using ABAQUS software to determine the performance of buried steel pipes backfilled with CLSM when subjected to seismic wave propagation and reverse-slip fault rupture. Under seismic wave propagation, the study started by evaluating the ASCE guidelines and its design limitations. Then, several FE model parameters were evaluated for their effects on FE model results. After setting the model parameters to match the predicted stresses by the ASCE guidelines, the developed FE model was used to evaluate the pipe seismic performance with various soil and CLSM backfill materials. Both linear and non-linear material behavior were considered in this study. Under seismic fault rupture, the study developed a 3D FE model matching results from a full-scale testing performed by others. Various FE model parameters were also evaluated. Then, the developed FE model was utilized to determine the pipe seismic performance of CLSM mixture compared to compacted soil backfill. Results indicated that for 3D FEA pipe seismic analysis, FE model parameters can have a significant effect on the results. In addition, with a proper design buried steel pipe embedded in CLSM backfill with all its inherent advantages can perform as well as or better than soils in seismic prone areas
Cataloging source
UMK
http://library.link/vocab/creatorDate
1964-
http://library.link/vocab/creatorName
Somboonyanon, Prapon
Degree
Ph.D.
Dissertation note
(School of Computing and Engineering and Department of Geosciences).
Dissertation year
2019.
Granting institution
University of Missouri-Kansas City,
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorDate
1975-
http://library.link/vocab/relatedWorkOrContributorName
Halmen, Ceki
http://library.link/vocab/subjectName
  • Underground pipelines
  • Controlled low-strength materials
Label
Performance of Steel Pipelines Backfilled with Controlled Low-Strength Material (CLSM) under Seismic Wave Propagation and Reverse-Slip Fault Rupture, by Prapon Somboonyanon
Instantiates
Publication
Copyright
Note
  • "A dissertation in Civil Engineering and Geosciences."
  • Advisor: Ceki Halmen
  • Vita
Antecedent source
not applicable
Bibliography note
Includes bibliographical references (pages 120-124)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Contents
Introduction -- Literature review -- Buried pipelines subject to seismic wave propagation -- Buried pipelines subject to reverse-slip fault rupture -- Summary
Control code
1154710047
Dimensions
unknown
Extent
1 online resource (125 pages)
File format
one file format
Form of item
online
Level of compression
mixed
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations.
Quality assurance targets
not applicable
Specific material designation
remote
System control number
(OCoLC)1154710047
System details
  • The full text of the dissertation is available as an Adobe Acrobat .pdf file; Adobe Acrobat Reader required to view the file
  • Mode of access: World Wide Web
Label
Performance of Steel Pipelines Backfilled with Controlled Low-Strength Material (CLSM) under Seismic Wave Propagation and Reverse-Slip Fault Rupture, by Prapon Somboonyanon
Publication
Copyright
Note
  • "A dissertation in Civil Engineering and Geosciences."
  • Advisor: Ceki Halmen
  • Vita
Antecedent source
not applicable
Bibliography note
Includes bibliographical references (pages 120-124)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Contents
Introduction -- Literature review -- Buried pipelines subject to seismic wave propagation -- Buried pipelines subject to reverse-slip fault rupture -- Summary
Control code
1154710047
Dimensions
unknown
Extent
1 online resource (125 pages)
File format
one file format
Form of item
online
Level of compression
mixed
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations.
Quality assurance targets
not applicable
Specific material designation
remote
System control number
(OCoLC)1154710047
System details
  • The full text of the dissertation is available as an Adobe Acrobat .pdf file; Adobe Acrobat Reader required to view the file
  • Mode of access: World Wide Web

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