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2022 Fiscal Year Final Research Report

Development of technology for controlling rock fall events disasters at tunnel construction sites

Research Project

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Project/Area Number 20K05005
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 25020:Safety engineering-related
Research InstitutionYamaguchi University

Principal Investigator

Hayashi Hisashi  山口大学, 大学院創成科学研究科, 助教 (30633614)

Co-Investigator(Kenkyū-buntansha) 進士 正人  山口大学, 大学院創成科学研究科, 教授 (40335766)
吉川 直孝  独立行政法人労働者健康安全機構労働安全衛生総合研究所, 建設安全研究グループ, 上席研究員 (60575140)
岡崎 泰幸  松江工業高等専門学校, 環境・建設工学科, 講師 (50806081)
Project Period (FY) 2020-04-01 – 2023-03-31
Keywordsトンネル / 労働安全 / 肌落ち / 数値解析 / 切羽
Outline of Final Research Achievements

In this study, we develop a system to prevent damage by identifying areas with high risk of rockfall before the occurrence of rockfall by using 3D sensors and RGB cameras to acquire shape data of the face of a cut. The degree of rock overhang and the state of discontinuities in front of the face were estimated by measuring the face profile with high accuracy, and the areas at high risk of rock fall were identified based on this estimation.

Free Research Field

トンネル工学

Academic Significance and Societal Importance of the Research Achievements

本研究では,肌落ち災害による被害を低減することを目標とし,点群データを活用して肌落ち発生要因に着目した評価手法の検討を行った.本研究成果は,山岳トンネルの建設現場で生じる掘削直後の切羽付近の岩盤や土砂が崩落する「肌落ち」による労働災害の低減に資するものである.

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Published: 2024-01-30  

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