METHOD AND BODY FOR SUPPORTING WEIGHT-DROPPING DEVICE, METHOD AND PILE HEAD BASE FOR PILE PUSH-IN TEST, AND CONSTRUCTION METHOD FOR BEARING PILE FOUNDATION

摘要

PROBLEM TO BE SOLVED: To bring about the simplification of constituent equipment for use in a standard penetration test and a reduction in labor for installation work in a process for investigating ground for a pile; and to save labor for obtaining push-in reaction in a process for checking on a bearing pile.;SOLUTION: A standard penetration test apparatus 1a is constituted by supporting a catcher 17 of a weight-dropping device 9 on an ascending/descending part 5 via a supporting body 13, though the use of self-propelled heavy equipment 7 which comprises a columnar frame 3 supported by a supporting arm 4, and the ascending/descending part 5 mounted in such a manner as to be freely ascendable/descendable along the columnar frame 3. An apparatus for use in a push-in test method for the pile is constituted so that a pressurizing jack for the action of a pushing force is arranged above an object test pile via the pile head base; heavy equipment, capable of driving the test pile, is made to straddle the test pile; and an upper end of the pressurizing jack is fixed to the bottom surface of the body part of the heavy equipment.;COPYRIGHT: (C)2004,JPO