A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PENETRATION TESTING MACHINE FOR PILE HOLE
PROBLEM TO BE SOLVED: To provide a penetration testing machine for a pile hole for measuring the support strength of a hole bottom ground which is excellent in operation stability and durability of a suspension mechanism of a drive hammer which hits a knocking block for hole bottom penetration of a penetration rod.SOLUTION: A suspension mechanism 6 is configured such that a pair of holding pieces 62, 62 are held slidably in the radial direction by a slide guide frame 61 provided on a lower end of a piston rod 60a of a hydraulic cylinder 60 in an inside casing 2, and a tension coil spring 63 is engaged between both holding pieces 62, 62, and a knob part 51 of a drive hammer 5 at a drop position is held and clamped between both holding pieces 62, 62, and the drive hammer 5 is lifted in accordance with a shortening operation of the piston rod 60a, and both holding pieces 62, 62 press-contacting with a clamp release member 64 at an upper limit position are separated such that the drive hammer 5 is released downward.SELECTED DRAWING: Figure 2
【課題】孔底地盤の支持強度を測定する杭孔用貫入試験機として、貫入ロッドの孔底貫入のためにノッキングブロックを打撃するドライブハンマーの吊上げ機構の作動安定性及び耐久性に優れたものを提供する。【解決手段】吊上げ機構６は、内側ケーシング２内の油圧シリンダー６０のピストンロッド６０ａ下端に設けたスライドガイド枠６１に、一対の挟持片６２，６２が径方向スライド自在に保持され、両挟持片６２，６２間に引張コイルスプリング６３が係着されており、落下位置にあるドライブハンマー５の摘み部５１を両挟持片６２，６２間で挟んでクランプし、ピストンロッド６０ａの短縮作動で該ドライブハンマー５を持ち上げ、上限位置でクランプ解除部材６４に押接した両挟持片６２，６２が離間して該ドライブハンマー５を下放するように構成されてなる。【選択図】図２
PENETRATION TESTING MACHINE FOR PILE HOLE
PROBLEM TO BE SOLVED: To provide a penetration testing machine for a pile hole for measuring the support strength of a hole bottom ground which is excellent in operation stability and durability of a suspension mechanism of a drive hammer which hits a knocking block for hole bottom penetration of a penetration rod.SOLUTION: A suspension mechanism 6 is configured such that a pair of holding pieces 62, 62 are held slidably in the radial direction by a slide guide frame 61 provided on a lower end of a piston rod 60a of a hydraulic cylinder 60 in an inside casing 2, and a tension coil spring 63 is engaged between both holding pieces 62, 62, and a knob part 51 of a drive hammer 5 at a drop position is held and clamped between both holding pieces 62, 62, and the drive hammer 5 is lifted in accordance with a shortening operation of the piston rod 60a, and both holding pieces 62, 62 press-contacting with a clamp release member 64 at an upper limit position are separated such that the drive hammer 5 is released downward.SELECTED DRAWING: Figure 2
【課題】孔底地盤の支持強度を測定する杭孔用貫入試験機として、貫入ロッドの孔底貫入のためにノッキングブロックを打撃するドライブハンマーの吊上げ機構の作動安定性及び耐久性に優れたものを提供する。【解決手段】吊上げ機構６は、内側ケーシング２内の油圧シリンダー６０のピストンロッド６０ａ下端に設けたスライドガイド枠６１に、一対の挟持片６２，６２が径方向スライド自在に保持され、両挟持片６２，６２間に引張コイルスプリング６３が係着されており、落下位置にあるドライブハンマー５の摘み部５１を両挟持片６２，６２間で挟んでクランプし、ピストンロッド６０ａの短縮作動で該ドライブハンマー５を持ち上げ、上限位置でクランプ解除部材６４に押接した両挟持片６２，６２が離間して該ドライブハンマー５を下放するように構成されてなる。【選択図】図２
PENETRATION TESTING MACHINE FOR PILE HOLE
杭孔用貫入試験機
KASHIMOTO TAKAHIKO (author)
2018-05-31
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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