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GROUND COMPACTION METHOD FOR SOFT SANDY GROUND AND GROUND COMPACTION DEVICE USED FOR THE METHOD
PROBLEM TO BE SOLVED: To provide a ground compaction method for a soft sandy ground that can make the soft ground vibrate easily and reliably and compact the ground efficiently and at a low cost.SOLUTION: In a ground compaction method for a soft sandy ground in which a shaft 20 is penetrated into a soft sandy ground 1 to a prescribed depth and a surrounding ground 2 in which the shaft 20 has been penetrated is compacted, the shaft 20, having a magnet 25 in the lower side with a vibrator 22, an N pole and an S pole magnetized alternately in a ring form from the edge side, as well as a magnet 27 on the upper side with an N pole and an S pole magnetized alternately in a ring form, is used to generate a vibration H in the vertical direction and an impact with the vibrator 22, by having the magnet 25 on the lower side repel against and attracted to the magnet 27 on the upper side as a result of a rotary motion of the magnet 27 on the upper side, after penetrating the shaft 20 to the prescribed depth into the soft sandy ground 1, and the volume of the surrounding ground 2, into which the shaft 20 has been penetrated, is compressed by the vibration H in the vertical direction and the impact by the vibrator 22, to compact the soft ground of the surrounding ground 2.
【課題】軟弱地盤を簡単かつ確実に振動させて効率良く低コストで締固めることができる軟弱砂質土地盤締固め工法を提供する。【解決手段】軟弱砂質土地盤１中に軸２０を所定深度まで貫入して、軸２０を貫入した周辺地盤２を締め固める軟弱砂質土地盤締固め工法において、先端側より振動子２２及びＮ極とＳ極を交互にリング状に着磁した下側の磁石２５とＮ極とＳ極を交互にリング状に着磁した上側の磁石２７を設けた軸２０を用い、この軸２０を軟弱砂質土地盤１中の所定深度まで貫入した後で、上側の磁石２７の回転動により下側の磁石２５を該上側の磁石２７に対して反発・吸着させて振動子２２で鉛直方向の振動Ｈ及び衝撃を発生させ、軸２０を貫入した周辺地盤２の体積を振動子２２の鉛直方向の振動Ｈ及び衝撃により圧縮して周辺地盤２の軟弱地盤を締固める。【選択図】図９
GROUND COMPACTION METHOD FOR SOFT SANDY GROUND AND GROUND COMPACTION DEVICE USED FOR THE METHOD
PROBLEM TO BE SOLVED: To provide a ground compaction method for a soft sandy ground that can make the soft ground vibrate easily and reliably and compact the ground efficiently and at a low cost.SOLUTION: In a ground compaction method for a soft sandy ground in which a shaft 20 is penetrated into a soft sandy ground 1 to a prescribed depth and a surrounding ground 2 in which the shaft 20 has been penetrated is compacted, the shaft 20, having a magnet 25 in the lower side with a vibrator 22, an N pole and an S pole magnetized alternately in a ring form from the edge side, as well as a magnet 27 on the upper side with an N pole and an S pole magnetized alternately in a ring form, is used to generate a vibration H in the vertical direction and an impact with the vibrator 22, by having the magnet 25 on the lower side repel against and attracted to the magnet 27 on the upper side as a result of a rotary motion of the magnet 27 on the upper side, after penetrating the shaft 20 to the prescribed depth into the soft sandy ground 1, and the volume of the surrounding ground 2, into which the shaft 20 has been penetrated, is compressed by the vibration H in the vertical direction and the impact by the vibrator 22, to compact the soft ground of the surrounding ground 2.
【課題】軟弱地盤を簡単かつ確実に振動させて効率良く低コストで締固めることができる軟弱砂質土地盤締固め工法を提供する。【解決手段】軟弱砂質土地盤１中に軸２０を所定深度まで貫入して、軸２０を貫入した周辺地盤２を締め固める軟弱砂質土地盤締固め工法において、先端側より振動子２２及びＮ極とＳ極を交互にリング状に着磁した下側の磁石２５とＮ極とＳ極を交互にリング状に着磁した上側の磁石２７を設けた軸２０を用い、この軸２０を軟弱砂質土地盤１中の所定深度まで貫入した後で、上側の磁石２７の回転動により下側の磁石２５を該上側の磁石２７に対して反発・吸着させて振動子２２で鉛直方向の振動Ｈ及び衝撃を発生させ、軸２０を貫入した周辺地盤２の体積を振動子２２の鉛直方向の振動Ｈ及び衝撃により圧縮して周辺地盤２の軟弱地盤を締固める。【選択図】図９
GROUND COMPACTION METHOD FOR SOFT SANDY GROUND AND GROUND COMPACTION DEVICE USED FOR THE METHOD
軟弱砂質土地盤締固め工法及び該工法に用いる地盤締固め装置
YOSHIURA AKIHIRO (author) / FUKADA HISASHI (author)
2015-07-06
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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