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OBSTRUCTION GROUND PILE DRIVING DEVICE AND METHOD FOR DRIVING STEEL PIPE PILE INTO OBSTRUCTION GROUND
PROBLEM TO BE SOLVED: To provide a method for driving a steel pipe pile that does not require a large-sized heavy equipment even though the diameter of the steel pipe pile exceeds 1 meter.SOLUTION: A steel pipe pile is buried by a hollow steel pipe pile in which a drilling bit is provided at the tip and a drilling machine 1 provided inside the steel pipe pile in such a way that it can be ascended and descended. The drilling machine includes: a drilling body part having a drilling part at the bottom part to drill obstruction ground; and a gripper 1B holding the drilling body part at a desired position by applying a pressing force to the drilling body part onto the inner surface of the steel pipe pile. The drilling part includes: a first cutter drilling the obstruction ground in a longitudinal axis direction of the steel pipe pile; and a second cutter B2 drilling the obstruction ground outward in the radial direction of the steel pipe pile. The gripper is provided in the drilling body part 1A and extendable toward the inner surface of the steel pipe pile. When the gripper is extended, the drilling body part is pressed and held onto the inner surface of the steel pipe pile, and when the gripper is contracted, the drilling body part is freely ascended and descended in the steel pipe pile.
【課題】鋼管杭の径が１ｍを超えても大型の重機が必要でない鋼管杭打設方法の提供。【解決手段】先端に掘削ビットが設けられた中空の鋼管杭と、該鋼管杭の内部に昇降可能に設けられた掘削機１により埋設する。前記掘削機は障害地盤を掘削するための掘削部を下部に備える掘削本体部と、当該掘削本体部を前記鋼管杭の内面に対して押圧力を付与して、所望の位置に当該掘削本体部を保持するグリッパー１Ｂとを備え、前記掘削部は、障害地盤を前記鋼管杭の長手軸方向に掘削する第１カッターと、前記鋼管杭の半径方向外向きに掘削する第２カッターＢ２を有し、前記グリッパーは、前記掘削本体部１Ａに設けられ、かつ前記鋼管杭の内面に向かって伸長自在であり、前記グリッパーの伸長時に、前記鋼管杭の内面に前記掘削本体部が押圧・保持され、前記グリッパーの収縮時に前記掘削本体部が前記鋼管杭の内部で昇降自在の構成とされてなることを特徴とする。【選択図】図１
OBSTRUCTION GROUND PILE DRIVING DEVICE AND METHOD FOR DRIVING STEEL PIPE PILE INTO OBSTRUCTION GROUND
PROBLEM TO BE SOLVED: To provide a method for driving a steel pipe pile that does not require a large-sized heavy equipment even though the diameter of the steel pipe pile exceeds 1 meter.SOLUTION: A steel pipe pile is buried by a hollow steel pipe pile in which a drilling bit is provided at the tip and a drilling machine 1 provided inside the steel pipe pile in such a way that it can be ascended and descended. The drilling machine includes: a drilling body part having a drilling part at the bottom part to drill obstruction ground; and a gripper 1B holding the drilling body part at a desired position by applying a pressing force to the drilling body part onto the inner surface of the steel pipe pile. The drilling part includes: a first cutter drilling the obstruction ground in a longitudinal axis direction of the steel pipe pile; and a second cutter B2 drilling the obstruction ground outward in the radial direction of the steel pipe pile. The gripper is provided in the drilling body part 1A and extendable toward the inner surface of the steel pipe pile. When the gripper is extended, the drilling body part is pressed and held onto the inner surface of the steel pipe pile, and when the gripper is contracted, the drilling body part is freely ascended and descended in the steel pipe pile.
【課題】鋼管杭の径が１ｍを超えても大型の重機が必要でない鋼管杭打設方法の提供。【解決手段】先端に掘削ビットが設けられた中空の鋼管杭と、該鋼管杭の内部に昇降可能に設けられた掘削機１により埋設する。前記掘削機は障害地盤を掘削するための掘削部を下部に備える掘削本体部と、当該掘削本体部を前記鋼管杭の内面に対して押圧力を付与して、所望の位置に当該掘削本体部を保持するグリッパー１Ｂとを備え、前記掘削部は、障害地盤を前記鋼管杭の長手軸方向に掘削する第１カッターと、前記鋼管杭の半径方向外向きに掘削する第２カッターＢ２を有し、前記グリッパーは、前記掘削本体部１Ａに設けられ、かつ前記鋼管杭の内面に向かって伸長自在であり、前記グリッパーの伸長時に、前記鋼管杭の内面に前記掘削本体部が押圧・保持され、前記グリッパーの収縮時に前記掘削本体部が前記鋼管杭の内部で昇降自在の構成とされてなることを特徴とする。【選択図】図１
OBSTRUCTION GROUND PILE DRIVING DEVICE AND METHOD FOR DRIVING STEEL PIPE PILE INTO OBSTRUCTION GROUND
障害地盤杭打設装置及び障害地盤に鋼管杭を打設する方法
TAKANO HIROSHIGE (author) / KOIKE TSUNEO (author) / YAMAGUCHI TADAMI (author) / YOKOUCHI SEIJI (author)
2015-06-22
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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