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A platform for research: civil engineering, architecture and urbanism
BALLAST CONDITION EVALUATION SYSTEM AND BALLAST CONDITION EVALUATION METHOD
To provide a ballast condition evaluation system capable of quantitatively evaluating ballast conditions in the desired range with a simple configuration.SOLUTION: The ballast condition evaluation system includes: a speaker unit 2 that is placed on the surface of ballast T1 so that a sound is transmitted inward; a microphone unit 3 that is placed on the ballast adjacent to the speaker unit 2; and a sound insulation container 4 that is placed on the ballast covering the microphone unit 3. The sound insulation container 4 has the inner surface formed in a polyhedron. The sound insulation container 4 is provided with a sound insulation sponge 41 attached thereto along the lower edge. The speaker unit 2 includes a soundproof container 5 that is placed on the surface of the ballast covering the speaker unit 2.SELECTED DRAWING: Figure 1
【課題】簡単な構成で所望する範囲の道床状態を定量的に評価することが可能な道床状態評価装置を提供する。【解決手段】バラストＴ１の表面に内部に向けて音が伝達されるように設置されるスピーカ部２と、スピーカ部２に隣接してバラストの表面に設置されるマイク部３と、マイク部３を覆ってバラストの表面に設置される遮音容器部４とを備え、遮音容器部４は、内面が多面体に形成されている。遮音容器部４には、下縁に沿って吸音スポンジ４１が取り付けられ、スピーカ部２には、スピーカ部２を覆ってバラストの表面に設置される防音容器部５を備える。【選択図】図１
BALLAST CONDITION EVALUATION SYSTEM AND BALLAST CONDITION EVALUATION METHOD
To provide a ballast condition evaluation system capable of quantitatively evaluating ballast conditions in the desired range with a simple configuration.SOLUTION: The ballast condition evaluation system includes: a speaker unit 2 that is placed on the surface of ballast T1 so that a sound is transmitted inward; a microphone unit 3 that is placed on the ballast adjacent to the speaker unit 2; and a sound insulation container 4 that is placed on the ballast covering the microphone unit 3. The sound insulation container 4 has the inner surface formed in a polyhedron. The sound insulation container 4 is provided with a sound insulation sponge 41 attached thereto along the lower edge. The speaker unit 2 includes a soundproof container 5 that is placed on the surface of the ballast covering the speaker unit 2.SELECTED DRAWING: Figure 1
【課題】簡単な構成で所望する範囲の道床状態を定量的に評価することが可能な道床状態評価装置を提供する。【解決手段】バラストＴ１の表面に内部に向けて音が伝達されるように設置されるスピーカ部２と、スピーカ部２に隣接してバラストの表面に設置されるマイク部３と、マイク部３を覆ってバラストの表面に設置される遮音容器部４とを備え、遮音容器部４は、内面が多面体に形成されている。遮音容器部４には、下縁に沿って吸音スポンジ４１が取り付けられ、スピーカ部２には、スピーカ部２を覆ってバラストの表面に設置される防音容器部５を備える。【選択図】図１
BALLAST CONDITION EVALUATION SYSTEM AND BALLAST CONDITION EVALUATION METHOD
道床状態評価装置及び道床状態評価方法
FUKUNAKA RIKIYA (author) / NAKAMURA TAKAHISA (author) / KITAGAWA TOSHIKI (author) / UDA TOKI (author) / MOMOTANI YOSHITSUGU (author) / KIJIYA IPPEI (author)
2021-06-10
Patent
Electronic Resource
Japanese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
BALLAST CONDITION EVALUATION SYSTEM AND BALLAST CONDITION EVALUATION METHOD
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