A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PILE HOLE FORMATION DEVICE
To provide a pile hole formation device capable of improving accuracy of a measurement value of ground strength.SOLUTION: A pile hole formation device 100 including a plurality of auger rods 10, 20 connected vertically and an auger head 30 at a tip of the tip auger rod 10 forms a pile hole by drilling the ground A using the auger head 30 by rotary driving of the plurality of auger rods 10, 20. The pile hole formation device 100 comprises: a solidification material force-feed pipe 53 vertically extending in a hollow part of the tip auger rod 10 to force-feed a solidification material; a penetration rod 52 provided in the tip auger rod 10 so as to be vertically movable; a measurement cone 51 connected to a lower end of the penetration rod 52; a hydraulic cylinder 71 that is provided in the tip auger rod 10 and lowers the penetration rod 52 to push out the measurement cone 51 to the outside of the auger head 30 and make the measurement cone penetrate into the ground A; and a three-component sensor 54 that is positioned between the penetration rod 52 and the measurement cone 51 and measures resistance force in making the measurement cone 51 penetrate into the ground A.SELECTED DRAWING: Figure 3
【課題】地盤強度の測定値の精度向上を図ることが可能な杭孔形成装置を提供する。【解決手段】杭孔形成装置１００は、上下方向に複数のオーガロッド１０，２０が接続され、先端のオーガロッド１０の先端部にオーガヘッド３０を有し、複数のオーガロッド１０，２０を回転駆動することにより、オーガヘッド３０によって地盤Ａを掘削して杭孔を形成する。杭孔形成装置１００は、先端のオーガロッド１０の中空部内を上下方向に延び、固化材を圧送する固化材圧送管５３と、先端のオーガロッド１０内に上下移動可能に設けられた貫入用ロッド５２と、貫入用ロッド５２の下端部に接続された測定コーン５１と、先端のオーガロッド１０内に設けられ、貫入用ロッド５２を下方に移動させ、測定コーン５１をオーガヘッド３０の外部に押し出して地盤Ａ内に貫入させる油圧シリンダ７１と、貫入用ロッド５２と測定コーン５１との間に位置し、測定コーン５１を地盤Ａ内に貫入させる際の抵抗力を測定する３成分センサ５４とを備える。【選択図】図３
PILE HOLE FORMATION DEVICE
To provide a pile hole formation device capable of improving accuracy of a measurement value of ground strength.SOLUTION: A pile hole formation device 100 including a plurality of auger rods 10, 20 connected vertically and an auger head 30 at a tip of the tip auger rod 10 forms a pile hole by drilling the ground A using the auger head 30 by rotary driving of the plurality of auger rods 10, 20. The pile hole formation device 100 comprises: a solidification material force-feed pipe 53 vertically extending in a hollow part of the tip auger rod 10 to force-feed a solidification material; a penetration rod 52 provided in the tip auger rod 10 so as to be vertically movable; a measurement cone 51 connected to a lower end of the penetration rod 52; a hydraulic cylinder 71 that is provided in the tip auger rod 10 and lowers the penetration rod 52 to push out the measurement cone 51 to the outside of the auger head 30 and make the measurement cone penetrate into the ground A; and a three-component sensor 54 that is positioned between the penetration rod 52 and the measurement cone 51 and measures resistance force in making the measurement cone 51 penetrate into the ground A.SELECTED DRAWING: Figure 3
【課題】地盤強度の測定値の精度向上を図ることが可能な杭孔形成装置を提供する。【解決手段】杭孔形成装置１００は、上下方向に複数のオーガロッド１０，２０が接続され、先端のオーガロッド１０の先端部にオーガヘッド３０を有し、複数のオーガロッド１０，２０を回転駆動することにより、オーガヘッド３０によって地盤Ａを掘削して杭孔を形成する。杭孔形成装置１００は、先端のオーガロッド１０の中空部内を上下方向に延び、固化材を圧送する固化材圧送管５３と、先端のオーガロッド１０内に上下移動可能に設けられた貫入用ロッド５２と、貫入用ロッド５２の下端部に接続された測定コーン５１と、先端のオーガロッド１０内に設けられ、貫入用ロッド５２を下方に移動させ、測定コーン５１をオーガヘッド３０の外部に押し出して地盤Ａ内に貫入させる油圧シリンダ７１と、貫入用ロッド５２と測定コーン５１との間に位置し、測定コーン５１を地盤Ａ内に貫入させる際の抵抗力を測定する３成分センサ５４とを備える。【選択図】図３
PILE HOLE FORMATION DEVICE
杭孔形成装置
SHIMIZU TOMOAKI (author) / ISHII TOSHIYUKI (author) / MISAWA TAKASHI (author) / TSUKAMOTO KOJI (author) / SHIRAISHI SUKEAKI (author) / KODERA MITSURU (author) / OKA SHINTARO (author) / GOTO YUICHI (author)
2020-04-09
Patent
Electronic Resource
Japanese