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Void Fabric Tensor and Ultimate State Surface of Soils
Publisher: American Society of Civil Engineers
Abstract: This paper presents a method to characterize the fabric of soils. Attention is focused on the directional distribution of voids in these materials. The mean porosity and void fabric tensor used in the description are ...
Modeling Anisotropy of Clays at Critical State
Publisher: American Society of Civil Engineers
Abstract: Recent developments related to cam‐clay models are summarized, and a different approach to interpret these developments in terms of physical parameters of clays is presented. A new state variable, i|), indicative of the ...
Design Method for Stabilization of Slopes with Piles
Publisher: American Society of Civil Engineers
Abstract: A methodology is proposed for the design of slopes reinforced with a single row of piles. An existing method which is based on the theory of plasticity is used to find the lateral forces acting on the pile section above ...
Limitations in Decision Making and System Performance
Publisher: American Society of Civil Engineers
Abstract: Failures, understood in a broad sense as the poor performance of a system, can be analyzed from different perspectives. A top level view finds human cognitive characteristics determining performance. While cognitive ...
Expert Systems for Geotechnical Engineers
Publisher: American Society of Civil Engineers
Abstract: Geotechnical engineering is a field where experiential knowledge has no substitute. Making experts' knowledge explicit, and documenting and transferring it can have a great impact on the state of practice. The knowledge‐based ...
Knowledge‐Based System for Soil Improvement
Publisher: American Society of Civil Engineers
Abstract: The practice of soil improvement has received renewed attention in the last two decades. As a result, existing methods were improved and new ones developed. This paper presents a knowledge‐based decision support system for ...
Discussion of “<i>Knowledge‐Based Modeling of Material Behavior with Neural Networks</i>” by J. Ghaboussi, J. H. Garrett Jr. and X. Wu (January, 1991, Vol. 117, No. 1)
Publisher: American Society of Civil Engineers
Laboratory Study of Pressuremeter Tests in Clays
Publisher: American Society of Civil Engineers
Abstract: A series of strain‐controlled model pressuremeter tests were performed in cohesive soils inside a calibration chamber. Stress disturbance was introduced by unloading or preloading surrounding soil prior to the pressuremeter ...
Undrained Monotonic and Cyclic Strength of Sands
Publisher: American Society of Civil Engineers
Abstract: Results of torsional shear tests on specimens of reconstituted 20‐30 Ottawa sand are presented to resolve inconsistencies in prevailing interpretations of previously published test results regarding: (1) The conditions ...
CK0UC Shear Strength of Normally Consolidated Clays from CIUC Tests
Publisher: American Society of Civil Engineers
Abstract: Because of their practicality and simplicity, consolidated isotropic undrained compression (CIUC) triaxial tests are commonly used in practice to determine the undrained shear strength of cohesive soils, even though CAUC or