INFLUENCE OF DEGREE OF SHEAR STRESS REVERSAL ON THE LIQUEFACTION POTENTIAL OF SATURATED SAND
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概要
- 論文の詳細を見る
A series of dynamic cyclic shear tests under undrained conditions were conducted to determine the conditions to induce liquefaction of saturated sands, using a ring torsion apparatus to apply cyclic shear stresses under nearly plane strain conditions. In addition to completely reversed cyclic tests, partially reversed and unreversed cyclic tests were performed by superposing static initial shear stress on dynamic shear stress pulses. Most specimens were of a relative density of approximately 40 per cent, and the frequency of the cyclic shear stress ranged from 1Hz to 12Hz.Sudden failure of the specimens which was clearly recognized in the completely reversed and partially reversed tests was not observed in the unreversed tests. Irrespective of the degree of stress reversal, liquefaction failure became imminent when the ratio of the peak shear stress to the vertical effective stress reached a certain critical value. The degree of stress reversal had considerable effect on the conditions to cause initial liquefaction, but had no significant effect on the conditions to cause complete liquefaction. For completely reversed tests, the conditions to induce liquefaction was nearly independent of the frequency of the cyclic sheart stress from 1Hz to 12Hz.
- 社団法人地盤工学会の論文
- 1975-09-15
著者
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大岡 弘
Building Research Institute Ministry Of Construction
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吉見 吉昭
Tokyo Institute of Technology
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吉見 吉昭
Professor Tokyo Institute Of Technology
関連論文
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- MECHANICAL PROPERTIES OF UNDISTURBED TONE-RIVER GRAVEL OBTAINED BY IN-SITU FREEZING METHOD
- CYCLIC UNDRAINED TRIAXIAL STRENGTH OF SAND BY A COOPERATIVE TEST PROGRAM
- UNDRAINED CYCLIC SHEAR STRENGTH OF A DENSE NIIGATA SAND
- 飽和砂の液状化発生条件に対するセン断応力逆転度の影響
- 飽和砂の液状化発生条件に対すセン断応力逆転度の影響(『土質工学会論文報告集』Vol.15,No.3(1975年9月発行)掲載論文の概要)
- LARGE-SCALE CYCLIC SHEAR BIN TO EVALUATE METHODS FOR MITIGATING LIQUEFACTION HAZARD
- LARGE-SCALE CYCLIC SHEAR BIN TO EVALUATE METHODS FOR MITIGATING LIQUEFACTION HAZARD
- EFFECT OF SUBSURFACE LIQUEFACTION ON THE STRENGTH OF SURFACE SOIL
- 凍結による飽和砂の乱さない試料採取(『土質工学会論文報告集』Vol. 18,No. 3(1978年9月発行)掲載論文の概要)
- UNDISTURBED SAMPLING OF SATURATED SANDS BY FREEZING
- DRAINED AND UNDRAINED STRESS-STRAIN BEHAVIOR OF SANDS SUBJECTED TO CYCLIC SHEAR STRESS UNDER NEARLY PLANE STRAIN CONDITION
- EVALUATION OF LIQUEFACTION RESISTANCE OF SAND IMPROVED BY DEEP VIBRATORY COMPACTION
- SOIL LIQUEFACTION EVALUATIONS BY ELASTIC SHEAR MODULI
- INFLUENCE OF DEGREE OF SHEAR STRESS REVERSAL ON THE LIQUEFACTION POTENTIAL OF SATURATED SAND
- LIQUEFACTION RESISTANCE OF A PARTIALLY SATURATED SAND
- EMPIRICAL CORRELATION OF SOIL LIQUEFACTION BASED ON SPT N-VALUE AND FINES CONTENT
- EVALUATION OF LIQUEFACTION RESISTANCE OF CLEAN SANDS BASED ON HIGH-QUALITY UNDISTURBED SAMPLES
- PORE PRESSURE DISSIPATION RATIO FOR A NONLINEAR CONSOLIDATION PROBLEM