| 摘要 |
PROBLEM TO BE SOLVED: To create a means for producing an improved columnar body for enhancing the bearing power and provide a means for confirming whether a target for the improved soil has been produced. SOLUTION: This ground improvement stirring machine 100 with a sampler comprises a hollow rotation shaft 10, a drilling head 11 installed to the tip portion of the rotation shaft 11, a pair of drilling and stirring blades 12 provided by arranging them to face each other so as to give a slope having a constant angle to the horizontal surface near the tip of the rotation shaft 10, a pair of restricting stirring blades 13 provided to facing positions so as to provide a slant with a constant angle to the horizontal surface at the upper rotation angle 10 of the drilling and stirring blade 12, enlarged blade 14 provided on the rotation angle 10 between the drilling and stirring blades 12 and restricting stirring blade 13, tubular sampler 15 installed detachably to the rotation shaft 10 so as to turn its opening to the turning direction of the rotation shaft 10.
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