the propagation was analyzed when the explosion shock wave met the retaining wall after the TNT detonated on the sand ground.Weakening of shock wave subjected to different sizes of wall was studied.The results show that relative to free air
the arrival time of the overpressure behind the wall is delayed and the value is greatly reduced.When the height of the wall keeps constant
the weakening effect is increased with the width of the wall until the aspect ratio H/B≤0.25.
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references
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