• Title/Summary/Keyword: 지하터널

Search Result 3,428, Processing Time 0.024 seconds

A Study on 3D Tunnel Data Model for Integrated Map of Underground Spaces (지하공간통합지도의 3차원 터널 데이터 모델에 관한 연구)

  • Lee, Ji Yeon;Ryu, Ji Hui;Jeong, Da Woon;Ahn, Jong Wook
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.39 no.6
    • /
    • pp.371-380
    • /
    • 2021

  • This study aims to design a tunnel part model for underpass and subway lines that correspond to tunnel sector among the underground facilities(structure types) covered in the integrated map of underground spaces. For this purpose, we compared and reviewed the characteristics of international standards related to tunnel data models. As a result, it was found that CityGML 3.0 - Tunnel module was the most suitable for designing a 3D tunnel data model. Afterwards we reviewed the legal and institutional regulations to derive the standard elements of the 3D tunnel data model. Then we conducted a demand survey targeting experts in related fields to derive standard elements for addition and extension of underpasses and subway lines. Based on the above process, we designed and presented a 3D tunnel data model using UML. This study is expected to be meaningful as a basic study to improve the utilization of tunnel model in the integrated map of underground spaces.

  • https://doi.org/10.7848/ksgpc.2021.39.6.371 인용 PDF KSCI

Effect of the Yeongcheon Dam Waterway Tunnel, Korea, on Local Groundwater Levels (영천댐 도수터널 주변지역 지하수위 영향 분석)

  • Gyu-Han Kim;Seong-Woo Moon;Yong-Seok Seo
    • The Journal of Engineering Geology
    • /
    • v.33 no.3
    • /
    • pp.461-474
    • /
    • 2023

  • The study area is located in Hyeonseo-myeon and Andeok-myeon of Cheongsong-gun, Korea around the Yeongcheon dam waterway tunnel, and in this paper, it is analyzed whether the groundwater level is recovered or not compared to groundwater level before waterway tunnel construction by measuring the groundwater level of 156 wells which were installed in areas near and away from the waterway tunnel. From September 2017 to August 2018, the groundwater level of the well was measured at least once a month, and as a result of groundwater level observation survey, the groundwater level of wells distributed in the directly affected zone by the waterway tunnel is relatively lower than that of the indirectly affected zone apart from the waterway tunnel. These results are estimated to be predominantly affected by the effect of waterway tunnel acting on geologic discontinuities rather than by terrain conditions, i.e. groundwater flows being leaked to the waterway tunnel through direct or indirect channels. Continuous monitoring and further investigation will be required to maintain groundwater facilities and preserve groundwater environments in the future.

  • https://doi.org/10.9720/kseg.2023.3.461 인용 PDF HTML