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METHANE AND CARBON DIOXIDE IN PRAID SALT MINE
Abstract
The purpose of this paper is to determine the rate of methane (explosive gas ) and of carbon dioxide (axphysants gas ) in the mine workings of Praid salt mine. Currently in Romania there are six salt mines which exploit the salt through underground mine workings: Praid salt mine, Tg. Ocna salt mine, Slanic Prahova salt mine, Ocnele Mari salt mine, Cacica salt mine, and Dej salt mine. Of these six, in three salt mines occurred gas and salt eruptions: Praid salt mine, Slanic Prahova salt mine and Tg. Ocna salt mine. The purpose of the present paper work is to establish the methane release (explosive gas) and the carbon dioxide release regime in mine workings from Praid salt mine in order to verify its classification. This verification of the Praid salt mine classification has been carried out during October 2012 and there have been taken into account the following elements: Geological and technical-mining conditions of the salt deposit related to Praid mining perimeter. - Results of the quantitative and qualitative measurements from the underground mine workings regarding: ? Circulated air flows; ? Measured methane and carbon dioxide concentrations; ? Absolute flows registered; ? Accumulation capacity of gas in the deposit; ? Gas concentrations and pressure in the massif. Existing evidences and documentations regarding the previous gas occurrences and their manner of manifestation. Establishing the way in which the gas is released into the underground atmosphere of the mine workings. Based on the observations and on the carried out measurements, on the analysis of the studied geological and mining elements, there has been made the classification proposal of the Praid salt mine from the point of view of gas emissions (methane and carbon dioxide)
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References5
X X X - Technical report presenting Praid salt mine;
E. Chiuzan – Assessing the gas emanation state - methane and carbon dioxide - to verify the classification category of Praid salt mine, studies - NRDI INSEMEX 2006-2018;
D. Tulici, I.Toth – Analysis of gas parameters in the salt massif from Praid salt mine, NRDI INSEMEX study 1986;
Test procedure for measuring gas emissions in underground workings - NRDI INSEMEX Petrosani
Assessment procedure on approval of documentation concerning the classification of mines in terms of gas emanation - NRDI INSEMEX Petrosani.
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