| Project/Area Number |
60302066
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| Research Category |
Grant-in-Aid for Co-operative Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
基礎・土質工学
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| Research Institution | TOKYO DENKI UNIVERSITY (1986)
Nagoya University (1985) |
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Principal Investigator |
YAMAGUCHI HAKUJO FACULTY OF SCLENCE AND TECHNOLOGY PROFESSOR OF TOKYO DENKI UNIVERSITY, 理工学部, 教授 (70016228)
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| Co-Investigator(Kenkyū-buntansha) |
OKUMURA TETSUO FACULTY OF ENGINEERING LECTURER OF AICHI INSTITUTE OF TECHNOLOGY, 工学部, 講師 (70078913)
NARITA KUNITOMO FACULTY OF ENGINEERING, ASSOCIATE PROFESSOR OF AICHI INSTITUTE OF TECHNOLOGY, 工学部, 助教授 (90064956)
MATSUZAWA HIROSHI FACULTY OF ENGINEERING, ASSOCIATE PROFESSOR OF NAGOYA UNIVERSITY, 工学部, 助教授 (50023312)
UNO TAKAO FACULTY OF ENGINEERING PROFESSOR OF GIFU UNIVERSITY, 工学部, 教授 (70021582)
OHNE YOSHIO FACULTY OF ENGINEERING PROFESSOR OF AICHI INSTITUTE OF TECHNOLOGY, 工学部, 教授 (00064931)
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| Project Period (FY) |
1985 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1986: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1985: ¥2,600,000 (Direct Cost: ¥2,600,000)
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| Keywords | Slope / Earthquake / Slip displacement / Earthquake resistance design / Sceismicity analysis / Shocks / LOGIT model / 繰り返し圧密 |
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| Research Abstract |
1. THE CUMMULATIVE SLIP DISPLACEMENT OF A BLOCK PLACED ON THE TOP SURFACE OF A SAND SLOPE CAUSED BY A PULSATIVE LOAD WAS ANALYSED. THE SLIP DISPLACEMENT PER ONE PULSATIVE LOAD IS KNOWN TO BE IN PROPORTION TO SIN <omega> ( <omega> IS A SLOPE ANGLE) AND <T^2> (T IS A PERIOD OF A PULSATIVE LOAD) AND INVERSE PROPORTION TO THE STATIC SAFETY FACTOR OF THE SLOPE, ABOVE THEORETICAL PREDICTION IS CONFIRMED BY THE TESTS PERFORMED BY USING THE PENDULUM TYPE VIBRATION TABLE AND THE USUAL STEADY VIBRATION TABLE.
2. THE SETTLEMENT OF A TANK FOUNDATION DURING HEAVY EARTHQUAKE WAS ANALYSED BASED ON THE ASSUMPTION OF THE HYPERBOLIC RELATIONSHIPS BETWEEN LOAD AND SETTLEMENT. THE PREDICTED SETTLEMENT IS IN PROPORTION TO THE INERTIA FORCE OR THE WEIGHT OF STORED OIL AND INVERSE VERSE PROPORTION TO THE STATIC BEARING CAPACITY OF FOUNDATION AND ITS RIGIDITY. THE PREDICTED SETTLEMENTS ARE KNOWN TO AGREE WELL TO THE FIELD OBSERVATION THROUGH THE ACTUAL EARTHQUAKE.
3. STATISTICAL ANALYSIS OF DISASTER OF LEVEE WERE MADE BY THE USE OF LOGIT MODEL. IT IS CONCLUDED THAT THE WIDTH OF LEVEE TOP GREATER THAN 4M AND THE STABILITY COEFFICIENT c/ <gamma> H GREATER THAN 0.5 IS VERY EFFECTIVE TO PROTECT THE LEVEE FROM SOFFERING THE DISASTER.
4. THE DYNAMICAL CONSOLIDATION OF A CLAY LAYER DUE TO REPEATED LOAD IS ANALYSED BY THE USE OF FINITE DIFFERENCE CALCULATION, AND THE EXCESS PORE WATER PRESSURE PREDICTED IS KNOWN TO AGREE QUALITATIVELY WITH THE OBSERVED BEHAVIOR IN THE FIELD.
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