| 摘要 |
PURPOSE:To easily install respective sensors under the same spot by fitting the sensors to a flexible long-sized member at proper intervals in its lengthwise direction, and driving it into the ground by a drain material driving machine. CONSTITUTION:A couple of flexible boards 12 are coupled together by a coupling material 13 to form a flexible beltlike base material 14, and a gap hydraulic pressure sensor 15, depth sensor 16, and ground pressure sensor 17 are incorporated at intervals of specific depth, and their signals are sent onto the ground through cables 19, 20, and 21 stored in the space 23 in the base material 14 to constitute the ground subsidence measuring device 11. Consequently, the device 11 is driven into the ground by the drain material sinking machine, so it is not necessary to drive the sensors 15, 16, and 17 individually. |
