Site Effects on Seismic Behavior of Pipelines: A Review

2000 ◽  
Vol 122 (4) ◽  
pp. 469-475 ◽  
Author(s):  
Jianwen Liang ◽  
Shaoping Sun
Keyword(s):  
Site Effects ◽  
Seismic Behavior ◽  
Ground Deformation ◽  
Lateral Spread ◽  
Site Condition ◽  
Buried Pipelines ◽  
Fault Movement ◽  
Local Site ◽  
Permanent Ground Deformation ◽  
Almost All

Post-earthquake investigations showed that local site condition had significant effect on seismic behavior of pipelines: almost all seismic damages to buried pipelines were either due to permanent ground deformation such as fault movement, landslide and lateral spread, or found in nonuniform ground, and there were few cases that pipelines were damaged only by wave propagation. Earthquake field observations did clearly indicate that relatively high strain occurred in pipelines laid through nonuniform ground. In this paper, an updated and detailed review of site effects on seismic behavior of pipelines is presented. For the purpose, quantitative analysis of damage, earthquake field observation, theoretical and experimental study, and related seismic design are discussed, and research needs are pointed out. [S0094-9930(00)01702-9]

Analytical Model for Segmented Pipe Response to Tensile Ground Strain

2016 ◽  
Vol 32 (4) ◽  
pp. 2533-2548 ◽  
Author(s):  
Michael O'Rourke ◽  
Tatiana Vargas-Londono
Keyword(s):  
Cast Iron ◽  
Ground Deformation ◽  
Large Diameter ◽  
Small Diameter ◽  
Seismic Wave Propagation ◽  
Seismic Fragility ◽  
Buried Pipelines ◽  
Empirical Relations ◽  
Permanent Ground Deformation ◽  
Pipe Materials

Seismic fragility relations for segmented buried pipelines have, up to this point, been based almost exclusively upon empirical observations. There are drawbacks with the purely empirical approach, one being the lack of confidence in estimated damage for the more important large diameter pipelines. This paper presents mechanics-based models for small diameter cast iron pipelines subject to tensile ground strains. One model is for small to moderate ground strains (less than .0002) primarily associated with seismic wave propagation. A second model is for larger ground strains associated with the permanent ground deformation hazard. The predicted damage rates from these mechanics-based models are consistent with existing empirical relations for small diameter cast iron pipe. It is expected that in the future, these mechanics-based models can be extended to the more important large diameters and to different pipe materials.

scholarly journals Design of buried flexible pipelines during liquefaction

2018 ◽  
Vol 7 (2.21) ◽  
pp. 259
Author(s):  
Durga Prasad Valleti ◽  
Neelima Sathyam ◽  
S. Sivaranjani ◽  
C. Shahin ◽  
Sneha Mondal
Keyword(s):  
Seismic Design ◽  
Buoyancy Force ◽  
Ground Deformation ◽  
Soil Liquefaction ◽  
Buried Pipelines ◽  
Gujarat State ◽  
The World ◽  
Permanent Ground Deformation ◽  
Abaqus Software ◽  
Surrounding Soil

Pipelines are important facilities over the huge area to encounter a seismic hazards and conditions of soil. In India pipe lines run through high seismic areas and exposed to considerable risk. The pipelines have advanced in India compare through the world scenario there is no uniform guideline available for seismic design. Therefore we need to establish at least degree of safety for standard seismic design of pipelines. As a part of this, a number of flexible pipelines of different diameter, length, and thickness have been taken into consideration. The density, internal pressure and density of surrounding soil are taken into account and is checked against permanent ground deformation (PGD) due to liquefaction. Using ABAQUS SOFTWARE we will analyse the soil pipeline interaction and based on the results obtained some consideration are given for the design of pipeline in the Liquefied zone, which improve the capability of the pipeline to withstand buoyancy force due to soil liquefaction. The safety of buried pipelines is analyzed as per IITK-GSDMA (IIT-Kanpur-Gujarat state Disaster Management Authority) guidelines on seismic design.

Failure Analysis Of Buried Gas Pipelines Crossing Seismic Faults

2020 ◽  
Vol 3 (2) ◽  
pp. 781-790
Author(s):  
M. Rizwan Akram ◽  
Ali Yesilyurt ◽  
A.Can. Zulfikar ◽  
F. Göktepe
Keyword(s):  
Ground Deformation ◽  
Warning System ◽  
Strike Slip ◽  
Gas Pipelines ◽  
Steel Pipes ◽  
Seismic Fault ◽  
Fault Parameters ◽  
Dip Angle ◽  
Permanent Ground Deformation ◽  
Recent Earthquakes

Research on buried gas pipelines (BGPs) has taken an important consideration due to their failures in recent earthquakes. In permanent ground deformation (PGD) hazards, seismic faults are considered as one of the major causes of BGPs failure due to accumulation of impermissible tensile strains. In current research, four steel pipes such as X-42, X-52, X-60, and X-70 grades crossing through strike-slip, normal and reverse seismic faults have been investigated. Firstly, failure of BGPs due to change in soil-pipe parameters have been analyzed. Later, effects of seismic fault parameters such as change in dip angle and angle between pipe and fault plane are evaluated. Additionally, effects due to changing pipe class levels are also examined. The results of current study reveal that BGPs can resist until earthquake moment magnitude of 7.0 but fails above this limit under the assumed geotechnical properties of current study. In addition, strike-slip fault can trigger early damage in BGPs than normal and reverse faults. In the last stage, an early warning system is proposed based on the current procedure. 

Seismic vulnerability estimation of the building considering seismic environment and local site condition

2006 ◽  
Vol 19 (3) ◽  
pp. 292-298 ◽  
Author(s):  
Zeng-ping Wen ◽  
Meng-tan Gao ◽  
Feng-xin Zhao ◽  
Xiao-jun Li ◽  
Hong-shan Lu ◽  
...  
Keyword(s):  
Seismic Vulnerability ◽  
Site Condition ◽  
Local Site

scholarly journals Analysis of Ground Deformation Caused by Subway Tunnel Excavation in Kunming

2021 ◽  
Vol 236 ◽  
pp. 03029
Author(s):  
Ping Wei ◽  
Liuchuang Wei
Keyword(s):  
Ground Deformation ◽  
Horizontal Displacement ◽  
Subway Tunnel ◽  
Buried Pipelines ◽  
Tunnel Excavation ◽  
Protection Measures ◽  
Geological Conditions ◽  
Soil Stress ◽  
Foundation Deformation ◽  
At Home

Research at home and abroad shows that subway excavation often causes soil stress loss, resulting in settlement deformation and horizontal displacement of stratum. Therefore, combined with the special engineering geological conditions in Kunming area, the foundation deformation caused by subway excavation is studied, so as to provide an important foundation for proposing the protection measures of surrounding buildings and buried pipelines and promoting the construction of subway.

scholarly journals Preliminary Analysis for Evaluation of Local Site Effects from Strong Motion Spectra by an Inversion Method.

1992 ◽  
Vol 40 (1) ◽  
pp. 175-191 ◽  
Author(s):  
Kenichi Kato ◽  
Masayuki Takemura ◽  
Tomonori Ikeura ◽  
Kenji Urao ◽  
Tomiichi Uetake
Keyword(s):  
Preliminary Analysis ◽  
Site Effects ◽  
Strong Motion ◽  
Inversion Method ◽  
Local Site Effects ◽  
Local Site
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