To provide a boring machine and a measuring instrument capable of more rationally grasping properties of sediment in a chamber at real time.
The measuring instrument 20 is composed of a bar-like member 19 connected to a plate-like member 17 of a cutter 3 and projected into the chamber 9; a strain gage 21 installed at the bar-like member 19; and a computer (not shown in the figure) or the like. One end of the bar-like member 19 is fixed or pin-joined to the plate-like member 17. When the boring machine 1 excavates the natural ground by rotating the cutter 3, the measuring instrument 20 connected to the plate-like member 17 of the cutter 3 moves rotating in the chamber 9 filled with excavated sediment. The strain gage 21 of the measuring instrument 20 measures the flexure (displacement or deformation) of the bar-like member 19 caused by the force received from the excavated sediment in the chamber 9. The measuring instrument 20 sends a measured value measured by the strain gage 21, to the computer (not shown in the figure) or the like and grasps the properties of the excavated sediment in the chamber 9 based on the measured value.
NAGAMORI KUNIHIRO
TAMAI TATSURO
IGARASHI HIROMASA
KURONUMA IZURU
NAGATANI HIDEMOTO
ONO TAIGA
| JPS5817996A | 1983-02-02 | |||
| JPS6221994A | 1987-01-30 | |||
| JPS5854199A | 1983-03-31 | |||
| JP2006016934A | 2006-01-19 | |||
| JPH04198587A | 1992-07-17 |