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A platform for research: civil engineering, architecture and urbanism
BEDROCK EVALUATION METHOD
To provide a bedrock evaluation method capable of evaluating a coefficient of strain being hard to be affected by cracks without carrying out uniaxial compression test.SOLUTION: A bedrock evaluation method includes the steps of: arranging a circular flat plate 10 with an accelerometer 16a mounted thereon in the upper part of a steel ball 18 arranged in a bedrock G1, and striking the flat plate 10 by a striking member (hammer 12) with an accelerometer 16b mounted thereon; and calculating the coefficient of strain of the bedrock G1 from the mass of the flat plate 10, the mass of the striking member, the acceleration measured by the accelerometer 16a, the acceleration measured by the accelerometer 16b, the subsidence amount of the steel ball 18 and the contact radius with the bedrock G1 in the subsidence of the steel ball 18.SELECTED DRAWING: Figure 1
【課題】一軸圧縮試験を実施することなく亀裂の影響を受け難い変形係数を評価できる岩盤評価方法を提供する。【解決手段】岩盤評価方法は、岩盤Ｇ１に配置した鉄球１８の上部に、加速度計１６ａが取付けられた円形の平板１０を配置し、平板１０を加速度計１６ｂが取付けられた打撃体（ハンマー１２）によって打撃する工程と、平板１０の質量、打撃体の質量、加速度計１６ａによって測定された加速度、加速度計１６ｂによって測定された加速度、鉄球１８の沈下量及び鉄球１８の沈下時における岩盤Ｇ１との接触半径から、岩盤Ｇ１の変形係数を算出する工程と、を備えている。【選択図】図１
BEDROCK EVALUATION METHOD
To provide a bedrock evaluation method capable of evaluating a coefficient of strain being hard to be affected by cracks without carrying out uniaxial compression test.SOLUTION: A bedrock evaluation method includes the steps of: arranging a circular flat plate 10 with an accelerometer 16a mounted thereon in the upper part of a steel ball 18 arranged in a bedrock G1, and striking the flat plate 10 by a striking member (hammer 12) with an accelerometer 16b mounted thereon; and calculating the coefficient of strain of the bedrock G1 from the mass of the flat plate 10, the mass of the striking member, the acceleration measured by the accelerometer 16a, the acceleration measured by the accelerometer 16b, the subsidence amount of the steel ball 18 and the contact radius with the bedrock G1 in the subsidence of the steel ball 18.SELECTED DRAWING: Figure 1
【課題】一軸圧縮試験を実施することなく亀裂の影響を受け難い変形係数を評価できる岩盤評価方法を提供する。【解決手段】岩盤評価方法は、岩盤Ｇ１に配置した鉄球１８の上部に、加速度計１６ａが取付けられた円形の平板１０を配置し、平板１０を加速度計１６ｂが取付けられた打撃体（ハンマー１２）によって打撃する工程と、平板１０の質量、打撃体の質量、加速度計１６ａによって測定された加速度、加速度計１６ｂによって測定された加速度、鉄球１８の沈下量及び鉄球１８の沈下時における岩盤Ｇ１との接触半径から、岩盤Ｇ１の変形係数を算出する工程と、を備えている。【選択図】図１
BEDROCK EVALUATION METHOD
岩盤評価方法
KOMURA YUICHI (author) / HAMADA JUNJI (author) / HIRAI YOSHIO (author) / UCHIDA AKIHIKO (author)
2019-11-21
Patent
Electronic Resource
Japanese