| 摘要 |
A soundproof structure of an auxiliary entrance of a soundproof wall is provided to cut off effectively the noise propagated through an auxiliary entrance of a soundproof wall which is made in addition to a main entrance of an apartment house in due consideration of the minimum action line of residents. A soundproof structure of an auxiliary entrance of a soundproof wall comprises an auxiliary entrance(410) cutting off the noise transferred from a noise source of a road(10) between the road and an adjacent apartment house(20) and minimizing the action line of residents simultaneously, a first noise barrier(420) having a space for letting people come in and out and an intermediate passage(430) in a soundproof wall(400), a second noise barrier(440) having an inner entrance(450) in an apartment house complex, and a sound absorbing panel(460) installed to one side of the first noise barrier putting opposite to the auxiliary entrance, and the beginning of the second noise barrier from the other edge of the auxiliary entrance and the inside of the second noise barrier respectively to absorb the noise transferred through the auxiliary entrance.
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