US 12,345,159 B2
Measurement system and measurement method
Yuichi Kodama, Tokyo (JP); Shinichi Terada, Tokyo (JP); Eiichi Morioka, Tokyo (JP); and Takashi Nagayoshi, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 17/638,997
Filed by Komatsu Ltd., Tokyo (JP)
PCT Filed Aug. 26, 2020, PCT No. PCT/JP2020/032127
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/044914, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 2019-161959 (JP), filed on Sep. 5, 2019.
Prior Publication US 2022/0341322 A1, Oct. 27, 2022
Int. Cl. E21C 41/22 (2006.01); E21C 39/00 (2006.01); G01N 23/223 (2006.01)
CPC E21C 41/22 (2013.01) [E21C 39/00 (2013.01); G01N 23/223 (2013.01); G01N 2223/0745 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A measurement system that measures a grade of an excavated material generated from an underground tunnel, the underground tunnel being excavated by a tunnel excavator based on a mining plan of a mine planned based on primary grade data indicating an ore grade measured in a preliminary geological survey, which includes a boring survey, and primary position data corresponding to the primary grade data, the measurement system comprising:
a grade measuring device that measures the grade of the excavated material generated from the underground tunnel, and measures a secondary grade data indicating a grade of the excavated material, by detecting an emission spectrum obtained by emitting light to the excavated material;
a positioning device that acquires secondary position data indicating a measuring position of the secondary grade data, by receiving a reflected light of a light which is emitted to the tunnel excavator; and
a processor,
wherein the processor causes a storage to store the secondary grade data and the secondary position data in association with each other.
 
7. A measurement method of measuring a grade of an excavated material generated from an underground tunnel, the underground tunnel excavated by a tunnel excavator based on a mining plan of a mine planned based on primary grade data indicating an ore grade measured by a preliminary geological survey, which includes a boring survey, and the primary grade data, the measurement method comprising:
measuring the grade of the excavated material, including elemental composition, generated from the underground tunnel;
measuring a secondary grade data indicating a grade of the excavated material, by detecting an emission spectrum obtained by emitting light to the excavated material;
acquiring secondary position data indicating a measuring position of the secondary grade data, by receiving a reflected light of a light which is emitted to the tunnel excavator; and
storing the secondary grade data and the secondary position data in association with each other.