| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Research Abstract |
The performance of a high energy type rock-fence is now depending on the design method based on the cumulative and absorbable energies which have been evaluated from a manufacturer's original experimental method and its experimental value. Improvement in a simulation technique of a high energy type rock-fence was aimed in this study. It has been made clear from experiments and analyses that the rockfall characteristics, i.e., mass, configuration and velocity, etc. influence the performance of a rock-fence even if the rockfall energy is same, and that the cumulative rule is unsuitable for evaluating a performance of a high energy type rock-fence.
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