{"title":"动态荷载下孟加拉国当地砂土中的混凝土隧道与桩的相互作用","authors":"","doi":"10.1007/s12517-024-11947-y","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>This research presents the concrete tunnel-pile interaction behaviors under dynamic loading considering dry local sand in Bangladesh. For this reason, the shake table test has been conducted in the BUET (Bangladesh University of Engineering and Technology) concrete laboratory considering the relative densities of the dry local sand of 27%, 41%, and 55%. The dynamic loading is of sinusoidal form with frequencies of 1 Hz, 3 Hz, 5 Hz, and 7 Hz for the peak ground acceleration of 0.05 g. The interactive performance of the tunnel-pile model is evaluated in terms of the tunnel moment, tunnel strain, and displacements. The numerical simulation is performed by using the finite element-based code PLAXIS3D. The validation results of PLAXIS3D with the previous studies are found to be approximately 5% which shows a reasonable agreement. The experimental results of the tunnel-pile interaction model are compared to the previous field studies and numerical analysis to obtain the ranges of variations of results of (1 ~ 4.2)% and (5 ~ 10)%, respectively. The interaction zone shows the maximum SRSS (square root sum of squares) responses of the tunnel strain and moment based on the experimental study due to the influence of piles on the tunnel body. In addition, the SRSS vertical displacement of sand shows the lower value to compare the tunnel lateral and vertical displacements due to the higher damping of the sand than the tunnel and piles with caps.</p>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":null,"pages":null},"PeriodicalIF":1.8270,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Concrete tunnel-pile interaction in local sand of Bangladesh under dynamic loading\",\"authors\":\"\",\"doi\":\"10.1007/s12517-024-11947-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3>Abstract</h3> <p>This research presents the concrete tunnel-pile interaction behaviors under dynamic loading considering dry local sand in Bangladesh. For this reason, the shake table test has been conducted in the BUET (Bangladesh University of Engineering and Technology) concrete laboratory considering the relative densities of the dry local sand of 27%, 41%, and 55%. The dynamic loading is of sinusoidal form with frequencies of 1 Hz, 3 Hz, 5 Hz, and 7 Hz for the peak ground acceleration of 0.05 g. The interactive performance of the tunnel-pile model is evaluated in terms of the tunnel moment, tunnel strain, and displacements. The numerical simulation is performed by using the finite element-based code PLAXIS3D. The validation results of PLAXIS3D with the previous studies are found to be approximately 5% which shows a reasonable agreement. The experimental results of the tunnel-pile interaction model are compared to the previous field studies and numerical analysis to obtain the ranges of variations of results of (1 ~ 4.2)% and (5 ~ 10)%, respectively. The interaction zone shows the maximum SRSS (square root sum of squares) responses of the tunnel strain and moment based on the experimental study due to the influence of piles on the tunnel body. In addition, the SRSS vertical displacement of sand shows the lower value to compare the tunnel lateral and vertical displacements due to the higher damping of the sand than the tunnel and piles with caps.</p>\",\"PeriodicalId\":476,\"journal\":{\"name\":\"Arabian Journal of Geosciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.8270,\"publicationDate\":\"2024-03-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Arabian Journal of Geosciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1007/s12517-024-11947-y\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arabian Journal of Geosciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s12517-024-11947-y","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
Concrete tunnel-pile interaction in local sand of Bangladesh under dynamic loading
Abstract
This research presents the concrete tunnel-pile interaction behaviors under dynamic loading considering dry local sand in Bangladesh. For this reason, the shake table test has been conducted in the BUET (Bangladesh University of Engineering and Technology) concrete laboratory considering the relative densities of the dry local sand of 27%, 41%, and 55%. The dynamic loading is of sinusoidal form with frequencies of 1 Hz, 3 Hz, 5 Hz, and 7 Hz for the peak ground acceleration of 0.05 g. The interactive performance of the tunnel-pile model is evaluated in terms of the tunnel moment, tunnel strain, and displacements. The numerical simulation is performed by using the finite element-based code PLAXIS3D. The validation results of PLAXIS3D with the previous studies are found to be approximately 5% which shows a reasonable agreement. The experimental results of the tunnel-pile interaction model are compared to the previous field studies and numerical analysis to obtain the ranges of variations of results of (1 ~ 4.2)% and (5 ~ 10)%, respectively. The interaction zone shows the maximum SRSS (square root sum of squares) responses of the tunnel strain and moment based on the experimental study due to the influence of piles on the tunnel body. In addition, the SRSS vertical displacement of sand shows the lower value to compare the tunnel lateral and vertical displacements due to the higher damping of the sand than the tunnel and piles with caps.
期刊介绍:
The Arabian Journal of Geosciences is the official journal of the Saudi Society for Geosciences and publishes peer-reviewed original and review articles on the entire range of Earth Science themes, focused on, but not limited to, those that have regional significance to the Middle East and the Euro-Mediterranean Zone.
Key topics therefore include; geology, hydrogeology, earth system science, petroleum sciences, geophysics, seismology and crustal structures, tectonics, sedimentology, palaeontology, metamorphic and igneous petrology, natural hazards, environmental sciences and sustainable development, geoarchaeology, geomorphology, paleo-environment studies, oceanography, atmospheric sciences, GIS and remote sensing, geodesy, mineralogy, volcanology, geochemistry and metallogenesis.