Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test
The seismic response is generally amplified significantly near the fault zone due to the influence of discontinuous interfaces and weak-broken geotechnical structures, which imposes a severe geologic hazard risk on the engineering crossing the fault. The Hanjiang to Weihe River Project (phase II) cr...
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Frontiers Media S.A.
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/d3de41607e584fe99f13c8320fb9a148 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:d3de41607e584fe99f13c8320fb9a148 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:d3de41607e584fe99f13c8320fb9a1482021-11-30T18:41:25ZSeismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test2296-646310.3389/feart.2021.777551https://doaj.org/article/d3de41607e584fe99f13c8320fb9a1482021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.777551/fullhttps://doaj.org/toc/2296-6463The seismic response is generally amplified significantly near the fault zone due to the influence of discontinuous interfaces and weak-broken geotechnical structures, which imposes a severe geologic hazard risk on the engineering crossing the fault. The Hanjiang to Weihe River Project (phase II) crosses many high seismic intensity regions and intersects with eight large-scale regional active faults. Seismic fortification of the pipelines across the fault zone is significant for the design and construction of the project. A large-scale vibration table test was adopted to investigate the seismic response and fault influences. The responses of accelerations, dynamic stresses, strains, and water pressures were obtained. The results show that the dynamic responses were amplified significantly by the fault zone and the hanging wall. The influence range of fault on acceleration response is approximately four times the fault width. The acceleration amplification ratio in the fault zone generally exceeds 1.35, even reaching 1.8, and the hanging wall amplification ratio is approximately 1.2. The dynamic soil pressure primarily depends on the acceleration distribution and is apparently influenced by pipeline location and model inhomogeneity. The pipeline is bent slightly along the axial direction, accompanied by expansion and shrinkage in the radial direction. The maximum tensile and compressive strains appear at the lower and upper pipeline boundaries near the middle section, respectively. Massive y-direction cracks developed in the soil, accompanied by slight seismic subsidence. The research findings could provide reasonable parameters for the seismic design and construction of the project.Longsheng DengLongsheng DengWenzhong ZhangWenzhong ZhangYan DaiWen FanWen FanYubo LiYubo LiSen RenPei LiFrontiers Media S.A.articlevibration table testseismic responsepipeline across fault zoneloess siteinfluence of faultScienceQENFrontiers in Earth Science, Vol 9 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
vibration table test seismic response pipeline across fault zone loess site influence of fault Science Q |
| spellingShingle |
vibration table test seismic response pipeline across fault zone loess site influence of fault Science Q Longsheng Deng Longsheng Deng Wenzhong Zhang Wenzhong Zhang Yan Dai Wen Fan Wen Fan Yubo Li Yubo Li Sen Ren Pei Li Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test |
| description |
The seismic response is generally amplified significantly near the fault zone due to the influence of discontinuous interfaces and weak-broken geotechnical structures, which imposes a severe geologic hazard risk on the engineering crossing the fault. The Hanjiang to Weihe River Project (phase II) crosses many high seismic intensity regions and intersects with eight large-scale regional active faults. Seismic fortification of the pipelines across the fault zone is significant for the design and construction of the project. A large-scale vibration table test was adopted to investigate the seismic response and fault influences. The responses of accelerations, dynamic stresses, strains, and water pressures were obtained. The results show that the dynamic responses were amplified significantly by the fault zone and the hanging wall. The influence range of fault on acceleration response is approximately four times the fault width. The acceleration amplification ratio in the fault zone generally exceeds 1.35, even reaching 1.8, and the hanging wall amplification ratio is approximately 1.2. The dynamic soil pressure primarily depends on the acceleration distribution and is apparently influenced by pipeline location and model inhomogeneity. The pipeline is bent slightly along the axial direction, accompanied by expansion and shrinkage in the radial direction. The maximum tensile and compressive strains appear at the lower and upper pipeline boundaries near the middle section, respectively. Massive y-direction cracks developed in the soil, accompanied by slight seismic subsidence. The research findings could provide reasonable parameters for the seismic design and construction of the project. |
| format |
article |
| author |
Longsheng Deng Longsheng Deng Wenzhong Zhang Wenzhong Zhang Yan Dai Wen Fan Wen Fan Yubo Li Yubo Li Sen Ren Pei Li |
| author_facet |
Longsheng Deng Longsheng Deng Wenzhong Zhang Wenzhong Zhang Yan Dai Wen Fan Wen Fan Yubo Li Yubo Li Sen Ren Pei Li |
| author_sort |
Longsheng Deng |
| title |
Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test |
| title_short |
Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test |
| title_full |
Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test |
| title_fullStr |
Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test |
| title_full_unstemmed |
Seismic Response of a Water Transmission Pipeline Across a Fault Zone Adopting a Large-Scale Vibration Table Test |
| title_sort |
seismic response of a water transmission pipeline across a fault zone adopting a large-scale vibration table test |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/d3de41607e584fe99f13c8320fb9a148 |
| work_keys_str_mv |
AT longshengdeng seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT longshengdeng seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT wenzhongzhang seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT wenzhongzhang seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT yandai seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT wenfan seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT wenfan seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT yuboli seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT yuboli seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT senren seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest AT peili seismicresponseofawatertransmissionpipelineacrossafaultzoneadoptingalargescalevibrationtabletest |
| _version_ |
1718406352760471552 |