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A platform for research: civil engineering, architecture and urbanism
METHOD AND SYSTEM FOR ESTIMATING GROUND STRENGTH
To provide a method and system for estimating ground strength allowing further simple and quick estimation of strengths of various object grounds on land or under water.SOLUTION: Strength of an object ground G can be estimated by using: a pressing load Q calculated on the basis of the magnitude of the hydraulic pressure of a hydraulic cylinder 7 for a boom when pressing the object ground G with an attachment 10 by rotating downward the boom 6 of a hydraulic heavy machine 2 around a rear end rotation center part 6b of the boom 6, a separation distance between a cylinder axial direction CL of the hydraulic cylinder 7 and the rear end rotation center part 6b, and the separation distance between a line of action of the pressing load Q to the object ground G and the rear end rotation center part 6b; or a push-in amount into the object ground G calculated on the basis of a vertical displacement amount of a boom tip part 6c caused by rotation centering around the rear end rotation center part 6b when pressing the object ground G, and the vertical displacement amount of the rear end rotation center part 6b by the rotation centering around a grounding fulcrum of an undercarriage 3 caused by the reaction of pressing.SELECTED DRAWING: Figure 1
【課題】陸上や水中などの様々な対象地盤の強度を、一段と簡便かつ迅速に推定できる地盤強度の推定方法およびシステムを提供する。【解決手段】油圧重機２のブーム６をブーム６の後端部回転中心部６ｂを中心に下方回転させてアタッチメント１０により対象地盤Ｇを押圧した時のブーム用の油圧シリンダ７の油圧の大きさと、油圧シリンダ７の筒軸方向ＣＬと後端部回転中心部６ｂとの離間距離と、対象地盤Ｇへの押圧荷重Ｑの作用線と後端部回転中心部６ｂとの離間距離とに基づいて算出した押圧荷重Ｑを用いて、或いは、対象地盤Ｇを押圧した時の後端部回転中心部６ｂを中心にした回転によるブーム先端部６ｃの上下変位量と、押圧の反力に起因する車台３の接地支点を中心した回転による後端部回転中心部６ｂの上下変位量とに基づいて算出した対象地盤Ｇへの押込み量を用いて、対象地盤Ｇの強度を推定する。【選択図】図１
METHOD AND SYSTEM FOR ESTIMATING GROUND STRENGTH
To provide a method and system for estimating ground strength allowing further simple and quick estimation of strengths of various object grounds on land or under water.SOLUTION: Strength of an object ground G can be estimated by using: a pressing load Q calculated on the basis of the magnitude of the hydraulic pressure of a hydraulic cylinder 7 for a boom when pressing the object ground G with an attachment 10 by rotating downward the boom 6 of a hydraulic heavy machine 2 around a rear end rotation center part 6b of the boom 6, a separation distance between a cylinder axial direction CL of the hydraulic cylinder 7 and the rear end rotation center part 6b, and the separation distance between a line of action of the pressing load Q to the object ground G and the rear end rotation center part 6b; or a push-in amount into the object ground G calculated on the basis of a vertical displacement amount of a boom tip part 6c caused by rotation centering around the rear end rotation center part 6b when pressing the object ground G, and the vertical displacement amount of the rear end rotation center part 6b by the rotation centering around a grounding fulcrum of an undercarriage 3 caused by the reaction of pressing.SELECTED DRAWING: Figure 1
【課題】陸上や水中などの様々な対象地盤の強度を、一段と簡便かつ迅速に推定できる地盤強度の推定方法およびシステムを提供する。【解決手段】油圧重機２のブーム６をブーム６の後端部回転中心部６ｂを中心に下方回転させてアタッチメント１０により対象地盤Ｇを押圧した時のブーム用の油圧シリンダ７の油圧の大きさと、油圧シリンダ７の筒軸方向ＣＬと後端部回転中心部６ｂとの離間距離と、対象地盤Ｇへの押圧荷重Ｑの作用線と後端部回転中心部６ｂとの離間距離とに基づいて算出した押圧荷重Ｑを用いて、或いは、対象地盤Ｇを押圧した時の後端部回転中心部６ｂを中心にした回転によるブーム先端部６ｃの上下変位量と、押圧の反力に起因する車台３の接地支点を中心した回転による後端部回転中心部６ｂの上下変位量とに基づいて算出した対象地盤Ｇへの押込み量を用いて、対象地盤Ｇの強度を推定する。【選択図】図１
METHOD AND SYSTEM FOR ESTIMATING GROUND STRENGTH
地盤強度の推定方法およびシステム
TANAKA YOSUKE (author) / MORISAWA TOMOHIRO (author) / OMORI SHINYA (author)
2020-01-09
Patent
Electronic Resource
Japanese
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