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A Case Study of Ground Subsidence in a Groundwater-saturated Limestone Mine
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  • Journal title : The Journal of Engineering Geology
  • Volume 25, Issue 4,  2015, pp.511-524
  • Publisher : The Korea Society of Engineering Gelolgy
  • DOI : 10.9720/kseg.2015.4.511
 Title & Authors
A Case Study of Ground Subsidence in a Groundwater-saturated Limestone Mine
Choi, Woo-Seok; Kim, Eun-Sup; Kang, Byung-Chun; Shin, Dong-Choon; Kim, Soo-Lo; Baek, Seung-Han;
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 Abstract
Groundwater causing subsidence in limestone mines is uncommon, and thus relatively poorly investigated. This case study investigated the cause and possibility of future subsidence through an evaluation of ground stability at the Samsung limestone mine, Chungcheongbuk-do. The ground near the mine area was evaluated as unstable due to rainfall permeation, and subsidence in the unmined area resulted from groundwater level drawdown. Future subsidence might occur through the diffusion of subsidence resulting from the small thickness of the mined rock roof, fracture rock joints, and poor ground conditions around the mine. In addition, the risk of additional subsidence by limestone sinkage in corrosion cavities, groundwater level drawdown due to artificial pumping, and rainfall permeation in the limestone zone necessitates reinforcements and other preventative measures.
 Keywords
limestone mine;ground subsidence;ground water;goaf cave;
 Language
Korean
 Cited by
1.
지하수로 포화된 채굴공동 보강을 위한 골재 그라우트 기둥공법의 그라우트 재료에 관한 실험적 연구,최우석;강병천;신동춘;김수로;김은섭;

터널과지하공간, 2016. vol.26. 5, pp.418-430 crossref(new window)
1.
Experimental Study on Grouting materials of Grout Column Method for Reinforcement Technology in Groundwater-saturated Mined Cavity, Tunnel and Underground Space, 2016, 26, 5, 418  crossref(new windwow)
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