| 摘要 |
A method for testing soils within a bore holes at which drilling is carried out with auger drill with sharpened lower end of the core, at coming to needed depth of testing and not taking out drill from well it is screwed in by one turn to bottom of the bore hole, one carries out soil testing with application of vertical load to drill, with measurement of that and vertical displacement of the drill one evaluates its bearing ability, not taking out drill from the well one repeats those operations at different depths of occurrence of soil stratums. Before drilling in the drill by one turn to bottom of the bore hole it is pulled up with measurement of force of counter-effect to that displacement, one lowers the drill to position preceding to drilling in the drill to bottom of the bore hole by one turn. |
