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지반침하 안정성 평가기법 및 대책연구

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자료유형 KIGAM 보고서
서명 지반침하 안정성 평가기법 및 대책연구
저자 권광수
언어 KOR
청구기호 KR-98-C-47-1998-R
발행사항 韓國資源硏究所, 1998
초록 The ground stability assessment technique of the subsidence prone area and its restoring plan need to be developed to obtain the ground stability around the mines at rest or closed since 1980's. Up to the present. The assessment of the subsidence risk has been conducted only after the statements of residents or the observation of symptom on the subsidence. Generally, the assessment process at first stage is carried on through the analysis of surface and mining map, the geological survey and the interviews to the residents. Drilling survey, rock property test, geotechnical rock and ground survey, and numerical analyses belong to the second stage. After the completion of the procedure the stability of buildings and the strength of subsidence are determined. The acquisition of the accurate in-situ data, the estimation of mechanical property of rock mass, and the analysis of basic mechanism may affect in the great extent on the assessment of the subsidence risk. In this study, the development of the subsidence risk assessment method was incorporated with the GIS technique which will be used to make the risk information map on the subsidence. The numerical analysis in 2D and 3D using PFC and FLAC has been conducted to estimate the ground stability of Moo-Geuk Mine area. The displacement behavior of the ground and the development of the failed zone due to the cavity were studied from the numerical modelling. The result of the ground stability assessment for the area in question shows that the risk to the subsidence is relatively small. It is, however, necessary to fill the cavity with some suitable materials when considering the new construction of buildings or roads in plan. Finally, the measures to prevent the subsidence and some case studies were presented, in particular the case study on the measurement of the ground movement in a mine were described in detail
페이지 ix, 153 p.
키워드 지반침하, GIS, 무극광산, 지반안정성, 침하, 지반
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한국지질자원연구원
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2099-04-01
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권광수. (1998). 지반침하 안정성 평가기법 및 대책연구. 韓國資源硏究所.