Title:
METHOD FOR DRIVING PILE TO ROCK MASS
Document Type and Number:
Japanese Patent JPH1171758
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To remove crushed stone at the tip of a pile by a simple formation and make pile driving work efficient by pouring water into the inside of the pile which is pitched into a rock mass and whose tip is opened, and driving the pile into the rock mass with a vibrohammer with a water level inside the pile kept higher than outside the pile. SOLUTION: A pile body 1 is pitched on a rock mass 2, and water is supplied thereto from a hose 6 connected to a lift pump 5 and attached to an opened head portion 9 and then the pile body 1 is driven with a vibrohammer 4. At the time of driving, the pile body 1 crushes the rock mass by striking it with its tip and bounces off the rock mass 2 momentarily. However, water stored in the pile flows into a clearance at the outside perimeter of the pile via the pile tip 12 from a clearance at the inside perimeter, and washes away crushed stone accumulating at the pile tip 12. The means of removing quickly crushed objects at the pile tip 12 is a very simple structure using natural energy and economical, thereby enabling transmit of the striking energy of the vibrohammer 4 to the rock mass 2 effectively.
Inventors:
MORITAKA HIROO
SAITO TAKUYA
YANAGA NOBUYUKI
YOSHIKAWA TOSHIO
ISSHIKI KAZUYA
NAKAJIMA MICHIHIRO
SAITO TAKUYA
YANAGA NOBUYUKI
YOSHIKAWA TOSHIO
ISSHIKI KAZUYA
NAKAJIMA MICHIHIRO
Application Number:
JP24481897A
Publication Date:
March 16, 1999
Filing Date:
August 27, 1997
Export Citation:
Assignee:
NIPPON STEEL CORP
GANKEN KK
GANKEN KK
International Classes:
E02D5/72; E02D7/18; (IPC1-7): E02D7/18; E02D5/72
Attorney, Agent or Firm:
Nobuyuki Hayashi