| 摘要 |
<p>A water level recovery observation apparatus is provided to shorten the time required for the field hydraulics test, and to observe the water level recovery effectively regardless of the water permeability of a medium. A water level recovery observation apparatus comprises a first packer(110) selectively adhered closely to the inside of a bore hole, a supply tube(140) supplying expanded fluids to the inside of the first packer, a guide tube(150) connected with a picking space of the lower part of the first packer and guiding the fluids existing in the picking space to the outside of the bore hole, and an observation tube(170) having the cross sectional area smaller than the guide tube, connected to the guide tube and providing a flow passage for flowing the fluids existing in the picking space.</p> |
