Auteur J.-M. Zhang
Documents disponibles écrits par cet auteur (18)
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J. Zhang, Auteur ; J.-M. Zhang, Auteur ; Wilson H. Tang, Auteur |As any model is only an abstraction of the real world, model uncertainty always exists. The magnitude of model uncertainty is important for geotechnical decision making. If model uncertainty is not considered, the geotechnical predictions and he[...]
Article : texte imprimé
L. L. Zhang, Auteur ; W. H. Tang, Auteur ; J.-M. Zhang, Auteur |The predicted performance using a geotechnical prediction model is expected to deviate from reality. A practical approach to assess the model error is through calibration with observed performances in physical model tests. In this paper, a Bayes[...]
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H. F. Zhao, Auteur ; J.-M. Zhang, Auteur ; D. S. Chang, Auteur |Colluvial soils are usually coarse and widely graded. Shallow-seated failures occur frequently in colluvial soil deposits during rainfall infiltration. This paper investigates the behavior of coarse, widely graded soils under very low confining [...]
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Xu, Y., Auteur ; J.-M. Zhang, Auteur |Dam risk analysis is at the heart of dam failure prevention and mitigation. In order to assess dam risk, it is essential to conduct a quantitative analysis of the process of a dam breach, which can be described by such parameters as breach geome[...]
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X. Li, Auteur ; J.-M. Zhang, Auteur |The microporosity structure of soil provides important information in understanding the shear strength, compressibility, water-retention ability, and hydraulic conductivity of soils. It is a soil characteristic that depends on sample preparation[...]
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S. L. Chen, Auteur ; J.-M. Zhang, Éditeur scientifique ; L. Z. Chen ; Cheng, Alexander H.-D. |A semianalytical solution to axisymmetric consolidation of a transversely isotropic soil layer resting on a rough impervious base and subjected to a uniform circular pressure at the ground surface is presented. The Analysis uses Biot's fully cou[...]
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G. Zhang, Auteur ; L. Wang, Auteur ; J.-M. Zhang, Auteur |Dilatancy is one of the key properties of the soil–structure interface. A number of monotonic and cyclic shear tests were analysed to derive the rules and the dilatancy mechanism of the interface between a structure and a gravelly soil; diverse [...]
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J. Zhang, Auteur ; Wilson H. Tang, Auteur ; J.-M. Zhang, Auteur |Back-analysis of slope failure is often performed to improve one's knowledge on parameters of a slope stability analysis model. In a failed slope, the slip surface may pass through several layers of soil. Therefore, several sets of model paramet[...]
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J.-M. Zhang, Auteur ; X. Li, Auteur |To date the microporosity structures of coarse soils with various coarse/fines contents are still not fully understood. In this study, the pore-size distributions (PSDs) of five types of soil varying from gravel to clay were characterized using [...]
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Chan, C. M., Auteur ; J.-M. Zhang, Auteur ; Jenny T. Ng, Auteur |This paper presents an automated optimal design method using a hybrid genetic algorithm for pile group foundation design. The design process is a sizing and topology optimization for pile foundations. The objective is to minimize the material vo[...]
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J. H. Li, Auteur ; J.-M. Zhang, Auteur ; Y. Wang, Auteur |Cracks are prevalent in near-ground-surface soils and provide preferential pathways for fluid flow. Cracks increase water infiltration or contaminant solute transport into soils. This paper studies the development of a permeability tensor and a [...]
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J. Zhang, Auteur ; J.-M. Zhang, Auteur ; Wilson H. Tang, Auteur |Reliability-based optimization (RBO) intends to minimize the cost involved in a design while satisfying all technical requirements specified by using reliability theory. Although this idea is attractive, its implementation is generally difficult[...]
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J. Zhang, Auteur ; J.-M. Zhang, Auteur ; Wilson H. Tang, Auteur |The performance of a slope, such as surviving a certain groundwater condition, can be viewed as the outcome of a full-scale test performed directly on the slope and may provide valuable information for safety assessment, upgrading analysis, and [...]
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S. M. Dasaka, Auteur ; J.-M. Zhang, Auteur |The founding depths of pile foundations depend primarily on the loading conditions of the superstructure and the strength of subsoil. The depth of Grade III weathered rock, the top of completely decomposed granite (CDG), and standard penetration[...]
Article : texte imprimé
J.-M. Zhang, Auteur ; S. M. Dasaka, Auteur |How the design and actual founding depths of foundations correspond to the variability of geological conditions has long been a concern. This paper evaluates the spatial variability characteristics of as-built and estimated founding depths of dr[...]
