A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HOLE DRILLING DEVICE, HOLE DRILLING METHOD AND METHOD FOR INSTALLING ANCHOR MATERIAL
PROBLEM TO BE SOLVED: To provide a hole drilling device, a hole drilling method and a method for installing an anchor material, capable of installing an outer pipe into a drilled hole unforcedly and surely, while adopting the outer pipe composed of a synthetic resin pipe which is low in cost and light in weight while having lower strength rigidity than a steel pipe.SOLUTION: A hole drilling method according to the present invention includes steps of mounting an outer pipe 16 composed of the synthetic resin pipe on an inner pipe 15 composed of the steel pipe, setting both pipes to a main body 14 of the hole drilling device, rotating and feed-driving only the inner pipe 15 to a hole drilling direction, and digging a drilled hole H in a ground G by exerting a percussion force on a bit 19 by a down-the-hole hammer 17 connected to a tip portion of the inner pipe 15. On the other hand, when an entraining portion of an entraining member 30 provided at a tip portion of the outer pipe 16 abuts against an abutting portion of a housing of the down-the-hole hammer 17, the outer pipe 16 is pulled toward a deep portion side of the drilled hole H to be dug, successively entrained to the deep portion side of the drilled hole H, and installed so as to remain in the drilled hole H.SELECTED DRAWING: Figure 1
【課題】鋼管と比較して強度剛性は低いが、安価で且つ軽量な合成樹脂管からなる外管を採用しつつ、該外管を削孔内に無理なく確実に施工し得る削孔装置及び削孔方法並びにアンカー材施工方法を提供する。【解決手段】鋼管からなる内管１５に合成樹脂管からなる外管１６を外装して、両者を削孔装置本体１４にセットし、内管１５のみを回転させるとともに削孔方向へ送り駆動し、内管１５の先端部に連設したダウンザホールハンマ１７により、ビット１９に打撃力を作用させて、地盤Ｇに対して削孔Ｈを掘削する。一方、外管１６は、その先端部に設けた連行部材３０の連行部が、ダウンザホールハンマ１７のハウジングの当接部に当接することで、掘削される削孔Ｈの奥部側へ引っ張られて、削孔Ｈの奥部側へ順次連行され、削孔Ｈ内に残留施工される。【選択図】図１
HOLE DRILLING DEVICE, HOLE DRILLING METHOD AND METHOD FOR INSTALLING ANCHOR MATERIAL
PROBLEM TO BE SOLVED: To provide a hole drilling device, a hole drilling method and a method for installing an anchor material, capable of installing an outer pipe into a drilled hole unforcedly and surely, while adopting the outer pipe composed of a synthetic resin pipe which is low in cost and light in weight while having lower strength rigidity than a steel pipe.SOLUTION: A hole drilling method according to the present invention includes steps of mounting an outer pipe 16 composed of the synthetic resin pipe on an inner pipe 15 composed of the steel pipe, setting both pipes to a main body 14 of the hole drilling device, rotating and feed-driving only the inner pipe 15 to a hole drilling direction, and digging a drilled hole H in a ground G by exerting a percussion force on a bit 19 by a down-the-hole hammer 17 connected to a tip portion of the inner pipe 15. On the other hand, when an entraining portion of an entraining member 30 provided at a tip portion of the outer pipe 16 abuts against an abutting portion of a housing of the down-the-hole hammer 17, the outer pipe 16 is pulled toward a deep portion side of the drilled hole H to be dug, successively entrained to the deep portion side of the drilled hole H, and installed so as to remain in the drilled hole H.SELECTED DRAWING: Figure 1
【課題】鋼管と比較して強度剛性は低いが、安価で且つ軽量な合成樹脂管からなる外管を採用しつつ、該外管を削孔内に無理なく確実に施工し得る削孔装置及び削孔方法並びにアンカー材施工方法を提供する。【解決手段】鋼管からなる内管１５に合成樹脂管からなる外管１６を外装して、両者を削孔装置本体１４にセットし、内管１５のみを回転させるとともに削孔方向へ送り駆動し、内管１５の先端部に連設したダウンザホールハンマ１７により、ビット１９に打撃力を作用させて、地盤Ｇに対して削孔Ｈを掘削する。一方、外管１６は、その先端部に設けた連行部材３０の連行部が、ダウンザホールハンマ１７のハウジングの当接部に当接することで、掘削される削孔Ｈの奥部側へ引っ張られて、削孔Ｈの奥部側へ順次連行され、削孔Ｈ内に残留施工される。【選択図】図１
HOLE DRILLING DEVICE, HOLE DRILLING METHOD AND METHOD FOR INSTALLING ANCHOR MATERIAL
削孔装置及び削孔方法並びにアンカー材施工方法
SAKAI KENJI (author) / MOCHIZUKI JUN (author) / NAKANO TOSHIYA (author) / ENDO JUNICHI (author) / NATORI ATSUSHI (author)
2018-10-18
Patent
Electronic Resource
Japanese
ANCHOR HOLE DRILLING POSITION MANAGEMENT SYSTEM AND ANCHOR HOLE DRILLING POSITION MANAGEMENT METHOD
| European Patent Office | 2019
| European Patent Office | 2022