| 摘要 |
Disclosed are an apparatus for sampling a filter layer and a method using the same. The apparatus includes a cylindrical tube having a designated length; a screw installed at the central portion in the cylindrical tube, wound in a spiral shape and rotated for shifting the obtained sample from the lower part to the upper part of the cylindrical tube, and a rotary operating unit fixed to the upper end of the screw for rotating the screw, wherein the cylindrical tube is made of a transparent material so that a worker at the outside of the cylindrical tube observes the inside of the cylindrical tube, and provided with a scale formed on the outer circumference thereof in the longitudinal direction, and a protective cap combined with the lower end thereof for smoothly excavating the filter layer and preventing the damage of the cylindrical tube generated when the filter layer is excavated, a fixed supporter is placed on the upper end of the screw, inserted into the upper opened end of the cylindrical tube and provided with a rotary bearing installed therein for the smooth rotation thereof, and a supporting hand lever is protruded from one side of the fixed supporter to the outside of the cylindrical tube for maintaining the balance between the cylindrical tube and the screw when the screw is rotated and allowing the worker to press the supporting hand lever with force required for excavation.
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