Document Type and Number:
Japanese Patent JPS5043710
Kind Code:
A
Abstract:
Method for placing anchor pile, as for bracing an earth retaining wall, includes an anchor rod axially centered in a bore augered in an earth situs at a location including an overburden of loose earth held against movement along an inclined slippage plane by a retaining wall. An auger drill is progressively withdrawn from the bore while fluid hydraulic cement mortar is pumped through auger shaft to form a pile in the bore, to requisite extents above and below slippage plane, with a tie-back rod axially centered therein. While mortar in the bore is in partially set, but still somewhat soft condition, a hollow shafted auger is operated to drill a new hole in the formed pile, along central axis thereof, to adjacent slippage plane. Upon substantial hardening of the remainder of the formed pile, the portion of centered rod extending freely above the slippage plane will not be under any substantial degree of radial tension, which otherwise would have been applied by the overburden. A part of rod located in hole extending above the slippage plane is adapted to be selectively detached from the retained portion of the formed pile at point in the redrilled cavity, as for the purpose of subsequent removal of overburden to a selective lower level.
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Application Number:
JP8234874A
Publication Date:
April 19, 1975
Filing Date:
July 19, 1974
Export Citation:
International Classes:
E02D5/80; E02D5/36; E02D5/54; E02D5/76; (IPC1-7): E02D5/74; E02D5/54
Domestic Patent References:
| JPS4719612A | ||||
| JPS4720906A | ||||
| JPS482913A | ||||
| JPS4835285U | 1973-04-27 |