Primary Study on Mechanism of Earthquake-Induced Differential Settlement of Buildings on Liquefiable Subsoil

Fan Chao Meng; Xiao Ming Yuan; Hui Xue

doi:10.4028/www.scientific.net/AMR.594-597.352

Paper Titles

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The Evaluation of Surrounding Rock Stability around Underground Engineerings Based on Improved Extension Evaluation Method
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Unconfined Compression Strength of Tianluoshan Relic Soils Solidified by Methyl Acrylic Acid Resin
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Deformation Prediction of Slopes Based on Grey Verhulst Model
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Primary Study on Mechanism of Earthquake-Induced Differential Settlement of Buildings on Liquefiable Subsoil
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Stability Analysis and Control Measures of the Kim-Yun-Mine Collapse
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Numerical Analysis on Effect of Rock Rheology on Fully-Grounded MFRP Bolt Stress
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Selection of Support Form and Water-Sealing Measure for Deep Excavation in Miscellaneous Interphase Distribution Strata
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Research on Mechanism of Consolidating the Saturated Soft Clay with the Application of Pile-Supported Composite Foundation
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597Primary Study on Mechanism of Earthquake-Induced...

Primary Study on Mechanism of Earthquake-Induced Differential Settlement of Buildings on Liquefiable Subsoil

Abstract:

The shaking table test on liquefied soil - structure interaction was desighed. In the test, the building model and the soil were evenly arranged, after being put horizontal sine wave acceleration time history, building symmetrical basal dynamic stress, pore water pressure and earthquake-induced settlement time history were obtained. The results are: (1) symmetrical basal vertical dynamic stress, pore water pressure, earthquake-induced settlement reaction time history appeared antisymmetric distribution; (2) basal dynamic stress is controlled by the input waveform, the basal vertical dynamic stress plays a decisive role in the increase of the pore water pressure, while difference of pore water pressure decides difference of earthquake-induced settlement, which causes the building tilts toward the direction of higher pore water pressure; (3) a correlation exists among input wave, basal vertical dynamic stress, pore water pressure and structural earthquake-induced settlement. The mechanism of earthquake-induced settlement is: acceleration waveform  form of both sides basal dynamic stress cumulative form of both sides basal pore pressure form of earthquake-induced settlement.