A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SIMPLE DETERMINATION METHOD OF GROUND TYPE USING GROUND PROPAGATION SOUND
To provide a simple determination method of ground types easily determining ground types by detecting and analyzing, using a sensor, ground propagation sound generated upon excavation of or insertion to the ground with a tip of an excavation/insertion part in drilling or sounding.SOLUTION: A simple determination method of ground types comprises steps of: measuring, with a sensor 7 (a solid propagation sound sensor) set in the ground surface or the ground adjacent to the ground surface, ground propagation sound which is friction/excavation sound generated at a tip 4 of an excavation/insertion part of a rod and propagated to the ground upon excavation/insertion in drilling or sounding; and determining the ground type based on a frequency component, a sound pressure, and an envelope of the ground propagation sound.SELECTED DRAWING: Figure 1
【課題】ボーリングやサウンディングにおいて、掘削・貫入部先端が地盤を掘削又は地盤に貫入する際に発生する音である地盤伝播音を、センサで検出・解析することにより、地盤種別を容易に特定する地盤種別の簡易特定法を提供する。【解決手段】ボーリング又はサウンディングの掘削・貫入時に、ロッドの掘削貫入部の先端４で発生し地盤を伝播する摩擦・掘削音である地盤伝播音を、地表面又は地表面付近の地盤内に設置したセンサ７（固体伝播音用センサ）により測定し、地盤伝播音の周波数成分、音圧、エンベロープに基づいて地盤種別を特定する。【選択図】 図１
SIMPLE DETERMINATION METHOD OF GROUND TYPE USING GROUND PROPAGATION SOUND
To provide a simple determination method of ground types easily determining ground types by detecting and analyzing, using a sensor, ground propagation sound generated upon excavation of or insertion to the ground with a tip of an excavation/insertion part in drilling or sounding.SOLUTION: A simple determination method of ground types comprises steps of: measuring, with a sensor 7 (a solid propagation sound sensor) set in the ground surface or the ground adjacent to the ground surface, ground propagation sound which is friction/excavation sound generated at a tip 4 of an excavation/insertion part of a rod and propagated to the ground upon excavation/insertion in drilling or sounding; and determining the ground type based on a frequency component, a sound pressure, and an envelope of the ground propagation sound.SELECTED DRAWING: Figure 1
【課題】ボーリングやサウンディングにおいて、掘削・貫入部先端が地盤を掘削又は地盤に貫入する際に発生する音である地盤伝播音を、センサで検出・解析することにより、地盤種別を容易に特定する地盤種別の簡易特定法を提供する。【解決手段】ボーリング又はサウンディングの掘削・貫入時に、ロッドの掘削貫入部の先端４で発生し地盤を伝播する摩擦・掘削音である地盤伝播音を、地表面又は地表面付近の地盤内に設置したセンサ７（固体伝播音用センサ）により測定し、地盤伝播音の周波数成分、音圧、エンベロープに基づいて地盤種別を特定する。【選択図】 図１
SIMPLE DETERMINATION METHOD OF GROUND TYPE USING GROUND PROPAGATION SOUND
地盤伝播音を利用した地盤種別の簡易特定法
ABE AKIO (author) / TOKIMATSU KOJI (author)
2021-04-01
Patent
Electronic Resource
Japanese
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