| 摘要 |
A probing device for investigating earth pressures including a drill tube having therein at least one linear displacement meter, including a feeler, inserted in an elastic measuring cylinder sensitive to earth pressure exerted on the drill tube, the feeler interacting with a stop element abutting the elastic measuring cylinder. The probing device includes a thrust cone for sensing soil pressure and a shiftable portion of the casing of the drill tube for sensing holding compression. An additional linear displacement meter and a continuously horizontal stop surface may be utilized for measuring inclination of the device.
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