A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a noise isolation device for a pile driver capable of effectively reducing impact sound generated when installing a precast pile such as a steel pipe pile with the pile driver such as a hydraulic hammer and like.SOLUTION: An outer periphery of a pile A including an outer periphery of an abutting surface between a head of the pile A and a pile driver B is composed of an upper noise isolation space 2 in a cylindrical shape covering a specific range in a material axis direction of the pile A and a lower noise isolation space 3 positioned at a lower side of the upper noise isolation space 2 and covering an outer periphery of a lower part than that of the upper noise isolation space 2 of the pile A. The lower noise isolation space 3 and the upper noise isolation space 2 make a continuous space. Rapidly expanding the lower noise isolation space 3 in a side direction of the pile A makes its section larger than that of the upper noise isolation space 2. Sound absorption material is arranged on an indoor side of the upper noise isolation space 2 and noise insulation material arranged on an outdoor side. Sound absorption material is arranged on the indoor side of a side surface and an upper surface of the lower noise isolation space 3 and side surface noise insulation material and upper surface noise insulation material is arranged on the outer side respectively.SELECTED DRAWING: Figure 2
【課題】油圧ハンマ等の杭打機による鋼管杭などの既製杭の打設時に発生する打撃音を効果的に低減できる杭打機用防音装置を提供する。【解決手段】杭Ａの頭部と杭打機Ｂとの当接面の外周を含む杭Ａの外周を、杭Ａの材軸方向の一定範囲に亘って覆う筒状の上部防音室２と、上部防音室２の下側に位置し、杭Ａの上部防音室２より下側部分の外周を覆う下部防音室３とから構成する。下部防音室３と上部防音室２を連続する空間とする。下部防音室３を杭Ａの側方に急拡大させて断面を上部防音室２より広くする。上部防音室２の室内側に吸音材、その室外側に遮音材を設置する。下部防音室３の側面と上面の室内側に吸音材を設置し、その室外側に側面遮音材と上面遮音材をそれぞれ設置する。【選択図】図２
To provide a noise isolation device for a pile driver capable of effectively reducing impact sound generated when installing a precast pile such as a steel pipe pile with the pile driver such as a hydraulic hammer and like.SOLUTION: An outer periphery of a pile A including an outer periphery of an abutting surface between a head of the pile A and a pile driver B is composed of an upper noise isolation space 2 in a cylindrical shape covering a specific range in a material axis direction of the pile A and a lower noise isolation space 3 positioned at a lower side of the upper noise isolation space 2 and covering an outer periphery of a lower part than that of the upper noise isolation space 2 of the pile A. The lower noise isolation space 3 and the upper noise isolation space 2 make a continuous space. Rapidly expanding the lower noise isolation space 3 in a side direction of the pile A makes its section larger than that of the upper noise isolation space 2. Sound absorption material is arranged on an indoor side of the upper noise isolation space 2 and noise insulation material arranged on an outdoor side. Sound absorption material is arranged on the indoor side of a side surface and an upper surface of the lower noise isolation space 3 and side surface noise insulation material and upper surface noise insulation material is arranged on the outer side respectively.SELECTED DRAWING: Figure 2
【課題】油圧ハンマ等の杭打機による鋼管杭などの既製杭の打設時に発生する打撃音を効果的に低減できる杭打機用防音装置を提供する。【解決手段】杭Ａの頭部と杭打機Ｂとの当接面の外周を含む杭Ａの外周を、杭Ａの材軸方向の一定範囲に亘って覆う筒状の上部防音室２と、上部防音室２の下側に位置し、杭Ａの上部防音室２より下側部分の外周を覆う下部防音室３とから構成する。下部防音室３と上部防音室２を連続する空間とする。下部防音室３を杭Ａの側方に急拡大させて断面を上部防音室２より広くする。上部防音室２の室内側に吸音材、その室外側に遮音材を設置する。下部防音室３の側面と上面の室内側に吸音材を設置し、その室外側に側面遮音材と上面遮音材をそれぞれ設置する。【選択図】図２
NOISE ISOLATION DEVICE FOR PILE DRIVER
杭打機用防音装置
UMEDA ITSUKI (author)
2019-09-19
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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