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SURFACE WAVE SURVEY METHOD AND SURFACE WAVE SURVEY DEVICE
PROBLEM TO BE SOLVED: To realize simplification of the operation for the ground survey by automatization of the extraction of the inflection point in the D-Vrb curve.SOLUTION: The surface wave survey analyzer for the ground survey system to exerts the ground survey by exciting the ground surface vertically and detecting the generated surface wave around it, calculates an average propagation velocity Vrb(f) and a depth D(f) of the surface wave by processing the output signals of at least two acceleration sensors located at the excitation site at a spacing L. After repeating the process to calculate the average propagation velocity Vrb(f) and the depth D(f) and generates a depth D-average propagation velocity Vrb(f) curve, plural inflection points are chosen to the acquired depth D-average propagation velocity Vrb(f) curve, and the section velocity between the inflection points are calculated on the basis of the chosen plural inflection points. Especially the choice of the plural inflection points is made from the variation of the velocity data ΔV as a factor in the depth D-average propagation velocity Vrb curve.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、前記深度D−伝搬平均速度Vrb曲線における速度データの変化量ΔVを因数として行う。【選択図】図1
SURFACE WAVE SURVEY METHOD AND SURFACE WAVE SURVEY DEVICE
PROBLEM TO BE SOLVED: To realize simplification of the operation for the ground survey by automatization of the extraction of the inflection point in the D-Vrb curve.SOLUTION: The surface wave survey analyzer for the ground survey system to exerts the ground survey by exciting the ground surface vertically and detecting the generated surface wave around it, calculates an average propagation velocity Vrb(f) and a depth D(f) of the surface wave by processing the output signals of at least two acceleration sensors located at the excitation site at a spacing L. After repeating the process to calculate the average propagation velocity Vrb(f) and the depth D(f) and generates a depth D-average propagation velocity Vrb(f) curve, plural inflection points are chosen to the acquired depth D-average propagation velocity Vrb(f) curve, and the section velocity between the inflection points are calculated on the basis of the chosen plural inflection points. Especially the choice of the plural inflection points is made from the variation of the velocity data ΔV as a factor in the depth D-average propagation velocity Vrb curve.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、前記深度D−伝搬平均速度Vrb曲線における速度データの変化量ΔVを因数として行う。【選択図】図1
SURFACE WAVE SURVEY METHOD AND SURFACE WAVE SURVEY DEVICE
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)
17.05.2018
Patent
Elektronische Ressource
Japanisch
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