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Abstract ▼ AI-Helper

This study presents the results of debris flow impact force scale test on erosion control dam, ring net in order to estimate impact force characteristics, impact force absorption mechanism. The peak impact force acting on the dam occurred at the lower part in $50^{\circ}$ and the amount o...

This study presents the results of debris flow impact force scale test on erosion control dam, ring net in order to estimate impact force characteristics, impact force absorption mechanism. The peak impact force acting on the dam occurred at the lower part in $50^{\circ}$ and the amount of impact force was 85.97 kN. The result tends that the steeper the slope angle was and the lower impact force reaction point was located at, the bigger the impact force became due to that debris flow movement speed was also faster. The result of ring net also shows similar to that of ring net, but the peak impact force of ring net reduced 33.94% (56.79 kN), because 17.3% of all debris penetrated from ring net. Meanwhile, the impact force acting on ring net was not only absorbed in steel-wire, but also significantly reduced due to aggregate penetration. the wire elongation at low part in ring net exceeded the steel wire permanent plastic deformation limit.

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