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A platform for research: civil engineering, architecture and urbanism
Exploration and Evaluation of Engineering Properties for Foundation Design of Offshore Structures
The in situ evaluation of clay properties by means of cone penetrometers and pore pressure probes is investigated. A review of existing theories of cone penetration indicates an almost complete neglect of the fact that continuous deep penetration is a steady-state problem where the deformation and strains in the soil can be estimated with far less uncertainty than the stresses. A logical approach to penetration problems consists of combining the strain-path of soil elements with appropriate constitutive laws to determine penetration resistance. A semi-empirical theory is developed to predict the undrained shear strength of clays from measurements of cone resistance and pore pressures during cone penetration. The theory accounts for the tip angle, tip enlargement and clay anisotropy. Extensive penetration testing is conducted in three clay deposits to identify important parameters affecting cone penetration and to evaluate the proposed theory. The continuity of the cone penetration records permits a detailed study of soil variability. Results indicate that cone resistance and field vane data detect approximately the same inherent soil variability which depends on the soil type.
Exploration and Evaluation of Engineering Properties for Foundation Design of Offshore Structures
The in situ evaluation of clay properties by means of cone penetrometers and pore pressure probes is investigated. A review of existing theories of cone penetration indicates an almost complete neglect of the fact that continuous deep penetration is a steady-state problem where the deformation and strains in the soil can be estimated with far less uncertainty than the stresses. A logical approach to penetration problems consists of combining the strain-path of soil elements with appropriate constitutive laws to determine penetration resistance. A semi-empirical theory is developed to predict the undrained shear strength of clays from measurements of cone resistance and pore pressures during cone penetration. The theory accounts for the tip angle, tip enlargement and clay anisotropy. Extensive penetration testing is conducted in three clay deposits to identify important parameters affecting cone penetration and to evaluate the proposed theory. The continuity of the cone penetration records permits a detailed study of soil variability. Results indicate that cone resistance and field vane data detect approximately the same inherent soil variability which depends on the soil type.
Exploration and Evaluation of Engineering Properties for Foundation Design of Offshore Structures
M. M. Baligh (author) / V. Vivatrat (author) / C. C. Ladd (author)
1979
286 pages
Report
No indication
English
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