Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SURFACE WAVE SURVEY ANALYSIS METHOD AND SURFACE WAVE SURVEY ANALYZER
To simplify work accompanied by a ground survey by automatically extracting an inflection point of a D-Vrb curve.SOLUTION: In a surface wave survey analyzer for a ground survey system for surveying the ground by detecting a surface wave which is generated around a ground surface by vertically exciting the ground surface, a propagation average speed Vrb(f) and a depth D(f) of the surface wave are calculated by processing output signals of at least two acceleration detectors which are arranged at an excitation site with an interval L, a depth D-propagation average speed Vrb curve is created by repeating processing for calculating the propagation average speed Vrb(f) and the depth D(f), after that, a plurality of inflection points is selected with respect to the created depth D-propagation average speed Vrb curve, and a zone speed between the inflection points is calculated on the basis of the plurality of selected inflection points. In particular, the plurality of inflection points is selected with changes of input signals SA and SB as factors.SELECTED DRAWING: Figure 1
【課題】Ｄ−Ｖｒｂ曲線における変曲点の抽出を自動化できるようにして地盤探査に伴う作業の簡略化を実現できるようにする。【解決手段】地表面を上下に起振することにより、その周囲に発生する表面波を検出して、地盤探査を行う地盤探査システム用の表面波探査解析装置であり、間隔Ｌをおいて起振現場に配置された少なくとも２つの加速度検出器の出力信号を処理して表面波の伝搬平均速度Ｖｒｂ（ｆ）と深度Ｄ（ｆ）とを算出し、前記伝搬平均速度Ｖｒｂ（ｆ）と前記深度Ｄ（ｆ）とを算出する処理を繰り返して深度Ｄ−伝搬平均速度Ｖｒｂ曲線を生成した後、生成した深度Ｄ−伝搬平均速度Ｖｒｂ曲線に対して複数の変曲点の選定を行い、選定した複数の変曲点に基づいて変曲点間の区間速度を算出する。特に、前記複数の変曲点の選定を、前記入力信号ＳＡ、ＳＢの変化を因数として行う。【選択図】図１
SURFACE WAVE SURVEY ANALYSIS METHOD AND SURFACE WAVE SURVEY ANALYZER
To simplify work accompanied by a ground survey by automatically extracting an inflection point of a D-Vrb curve.SOLUTION: In a surface wave survey analyzer for a ground survey system for surveying the ground by detecting a surface wave which is generated around a ground surface by vertically exciting the ground surface, a propagation average speed Vrb(f) and a depth D(f) of the surface wave are calculated by processing output signals of at least two acceleration detectors which are arranged at an excitation site with an interval L, a depth D-propagation average speed Vrb curve is created by repeating processing for calculating the propagation average speed Vrb(f) and the depth D(f), after that, a plurality of inflection points is selected with respect to the created depth D-propagation average speed Vrb curve, and a zone speed between the inflection points is calculated on the basis of the plurality of selected inflection points. In particular, the plurality of inflection points is selected with changes of input signals SA and SB as factors.SELECTED DRAWING: Figure 1
【課題】Ｄ−Ｖｒｂ曲線における変曲点の抽出を自動化できるようにして地盤探査に伴う作業の簡略化を実現できるようにする。【解決手段】地表面を上下に起振することにより、その周囲に発生する表面波を検出して、地盤探査を行う地盤探査システム用の表面波探査解析装置であり、間隔Ｌをおいて起振現場に配置された少なくとも２つの加速度検出器の出力信号を処理して表面波の伝搬平均速度Ｖｒｂ（ｆ）と深度Ｄ（ｆ）とを算出し、前記伝搬平均速度Ｖｒｂ（ｆ）と前記深度Ｄ（ｆ）とを算出する処理を繰り返して深度Ｄ−伝搬平均速度Ｖｒｂ曲線を生成した後、生成した深度Ｄ−伝搬平均速度Ｖｒｂ曲線に対して複数の変曲点の選定を行い、選定した複数の変曲点に基づいて変曲点間の区間速度を算出する。特に、前記複数の変曲点の選定を、前記入力信号ＳＡ、ＳＢの変化を因数として行う。【選択図】図１
SURFACE WAVE SURVEY ANALYSIS METHOD AND SURFACE WAVE SURVEY ANALYZER
表面波探査解析方法及び表面波探査解析装置
SATO NAGANORI (Autor:in) / MUKAI KOJI (Autor:in) / WATANABE KOJI (Autor:in) / KOISHI YUSUKE (Autor:in)
21.01.2021
Patent
Elektronische Ressource
Japanisch
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