International Journal of the JSRM
Online ISSN : 2189-8405
Geological evaluation technology for rock tunnelling using ICT - Smart Face Watcher -
Yasuyuki MIYAJIMASuguru SHIRASAGIHayato TOBETakuji YAMAMOTO
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ジャーナル オープンアクセス

2019 年 15 巻 1 号 p. 5-6

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For rock tunnelling projects, it was difficult to predict geological conditions in an excavation cycle. As a result, it would cause serious accidents such as face collapses. Furthermore, it is only the face observation where the geological condition can be confirmed directly during the tunnel excavation, and it is difficult to completely grasp without overlooking the face condition, and as a result it would cause rock fall disaster. In order to prevent such geological problems, we developed a system, "Smart Face Watcher" that evaluates and visualizes the geological conditions in real time on site. This system consists of two analysis methods: "3D real time geology forecasting system by drilling data" and "Rock fall risk assessment system by image analysis". The system makes it possible to make decisions to choose the appropriate auxiliary method depending on the geological conditions in front of the face and around the tunnel and to quickly determine the face shotcrete thickness based on the rock fall risk from the face. In addition, by using the cloud server, it is possible to share ground evaluation results in real time with the headquarters, which enables geologists to support sites nationwide.

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© 2019 Japanese Society of Rock Mechanics
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