• Title/Summary/Keyword: 암반 특성

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Evaluation of Rock Discontinuity Roughness Anisotropy based on Digital 3D Point Cloud Data (디지털 3차원 점군데이터 기반 암반 불연속면 거칠기 이방성 평가)

  • Taehyeon Kim;Kwang Yeom Kim
    • Tunnel and Underground Space
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    • v.33 no.6
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    • pp.495-507
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    • 2023

  • The roughness of discontinuity significantly influences the mechanical characteristics of rock masses and extensively affects thermal and hydraulic behaviors. In this study, we utilized photogrammetry to generate 3D point cloud data for discontinuity and applied this data to characterize the roughness of discontinuity. The discontinuity profiles, reconstructed from the 3D point cloud data, were compared with those manually measured using a profile gauge. This comparison served to validate the accuracy and reliability of the acquired point cloud data in replicating the actual configurations of rock surfaces. Subsequent to this validation, influence of the number of profiles for representative JRC assessment was further investigated followed by suggestion of roughness anisotropy evaluation method with application of it to actual rock discontinuity surfaces.

  • https://doi.org/10.7474/TUS.2023.33.6.495 인용 PDF

녹사평 암반의 단열특성과 지하수유동

  • 김은진
    • Proceedings of the KGS Conference
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    • 2002.11a
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    • pp.40-44
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    • 2002

  • 우리나라의 경우 이미 1980년대부터 단열암반(fractured rock)의 지하수를 개발ㆍ이용하여 왔다. 서울시의 지하수 이용시설 중 지하 30m 이상의 개발심도를 나타내는 관정이 31.4%(4,677개소), 100m 이상의 개발관정도 7.2%(1,076개소) 존재하는 것으로 보고되었다(서울시, 1996, 12).(중략)

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