Economic and Environmental Geology (자원환경지질)
- Volume 13 Issue 4
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- Pages.229-239
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- 1980
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- 1225-7281(pISSN)
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- 2288-7962(eISSN)
A Study on the Influence of Underground In-flow Water to Coal Production in Changsung Coal Mine
장성탄광(長省炭鑛)의 갱내출수(坑內出水)가 생산량(生産量)에 미치는 영향(影響)에 관(關)한 연구(硏究)
Abstract
A various kinds of harmful gases in the gallery and the increasing quantity of in-flow water are the important factors causing mainly the decline in production. In this thesis, the increase and decrease of in-flow water which effects the out put have been investigated and analysed in the statistical method. Through the results obtained together with the stastistical data some typical interreation formula between the quantity of in-flow water and production have been induced and the productive percentage in season was examined with special reference to Changsung Coal Mine. The formulas are as fallows: (1) Underground in-flow water to production;
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