Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND INVESTIGATION DEVICE AND GROUND INVESTIGATION METHOD
PROBLEM TO BE SOLVED: To provide a ground investigation device capable of largely reducing manhours and cost required for a ground investigation, by continuously executing a liquefaction determination and an evaluation of support performance of the ground by a physical exploration.SOLUTION: A ground investigation device 1 investigates an object ground G for executing a liquefaction determination of the ground and an evaluation of support performance, and comprises: a casing 3 penetrated into the object ground; an exciter 4 for imparting vibration to the casing; a plurality of acceleration detectors 5A and 5B arranged at an interval L on the ground surface G1 of the object ground; an arithmetic operation processing part 82 for calculating a propagation average speed based on a detection signal from the acceleration detectors; and a determination-evaluation part 83 for executing the liquefaction determination of the object ground and the evaluation of the support performance. Here, in the determination-evaluation part, the liquefaction determination is executed from a result of imparting vibration of a condition for generating liquefaction by the exciter, and the support performance is evaluated from the propagation average speed.SELECTED DRAWING: Figure 1
【課題】液状化判定と物理探査による地盤の支持性能の評価を連続して行うことにより、地盤調査に要する工数及び費用を大幅に軽減することが可能な地盤調査装置を提供する。【解決手段】地盤の液状化判定と支持性能の評価とを行うために対象地盤Ｇを調査する地盤調査装置１である。そして、対象地盤に貫入させるケーシング３と、ケーシングに振動を与える加振機４と、対象地盤の地表面Ｇ１上に間隔Ｌを置いて配置された複数の加速度検出器５Ａ，５Ｂと、加速度検出器からの検出信号に基づいて伝搬平均速度を算出する演算処理部８２と、対象地盤の液状化判定及び支持性能の評価を行う判定評価部８３とを備えている。ここで、判定評価部では、加振機によって液状化が発生する条件の振動が付与された結果から液状化判定が行われるとともに、伝搬平均速度から支持性能が評価される。【選択図】図１
GROUND INVESTIGATION DEVICE AND GROUND INVESTIGATION METHOD
PROBLEM TO BE SOLVED: To provide a ground investigation device capable of largely reducing manhours and cost required for a ground investigation, by continuously executing a liquefaction determination and an evaluation of support performance of the ground by a physical exploration.SOLUTION: A ground investigation device 1 investigates an object ground G for executing a liquefaction determination of the ground and an evaluation of support performance, and comprises: a casing 3 penetrated into the object ground; an exciter 4 for imparting vibration to the casing; a plurality of acceleration detectors 5A and 5B arranged at an interval L on the ground surface G1 of the object ground; an arithmetic operation processing part 82 for calculating a propagation average speed based on a detection signal from the acceleration detectors; and a determination-evaluation part 83 for executing the liquefaction determination of the object ground and the evaluation of the support performance. Here, in the determination-evaluation part, the liquefaction determination is executed from a result of imparting vibration of a condition for generating liquefaction by the exciter, and the support performance is evaluated from the propagation average speed.SELECTED DRAWING: Figure 1
【課題】液状化判定と物理探査による地盤の支持性能の評価を連続して行うことにより、地盤調査に要する工数及び費用を大幅に軽減することが可能な地盤調査装置を提供する。【解決手段】地盤の液状化判定と支持性能の評価とを行うために対象地盤Ｇを調査する地盤調査装置１である。そして、対象地盤に貫入させるケーシング３と、ケーシングに振動を与える加振機４と、対象地盤の地表面Ｇ１上に間隔Ｌを置いて配置された複数の加速度検出器５Ａ，５Ｂと、加速度検出器からの検出信号に基づいて伝搬平均速度を算出する演算処理部８２と、対象地盤の液状化判定及び支持性能の評価を行う判定評価部８３とを備えている。ここで、判定評価部では、加振機によって液状化が発生する条件の振動が付与された結果から液状化判定が行われるとともに、伝搬平均速度から支持性能が評価される。【選択図】図１
GROUND INVESTIGATION DEVICE AND GROUND INVESTIGATION METHOD
地盤調査装置及び地盤調査方法
FUTAGAWA KAZUKI (Autor:in) / KIM CHEOL HO (Autor:in)
01.02.2018
Patent
Elektronische Ressource
Japanisch
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