Record details

    Solution of problems connected with high sontaneous combustion susceptibility of oxidative altered bituminous coals
Statement of responsibility
    Boleslav Taraba, Petr Martinec, Miloslav Dopita, Zdeněk Klika
    Dopita, Miloslav
    Klika, Zdeněk, 1943-
    Martinec, Petr, 1942-
    Taraba, Boleslav
Source title - serial
    Věstník Českého geologického ústavu (Bulletin of the Czech Geological Survey)
    Vol. 74, no. 2
    p. 163-167
    5 diagr., 1 tab., 15 bibl.
    České resumé
    Zkr. název ser.: Věst. Čes. geol. Úst. (Bull. Czech geol. Surv.)
Subject group
    hornoslezská pánev
    red beds
    rizika geologická
    těžba podzemní
    uhlí bituminózní
Geographical name
Abstract (in english)
   The paper summarises basic results of the research project aimed at revealing the reason of high spontaneous combustion susceptibility of oxidative altered (OA) bituminous coals and, at recommanding appropriate measures to reduce the number of self heating incident of OA coals in the vicinity of red beds bodies. Based the laboratory examinations, the main reason for the increased oxyreactivity in oxidative altered bituminous coals can be perceived in the three aspects: 1. Active, promoting role of moisture in the oxidation mechanism, 2. Increased reactivity of free radicals generated in the oxidation process, 3. Easy penetration of oxygen into porous system of OA coals. Further, from the analysis of more than one hundered incidents of the spontaneous heating in coal mines of OKR, it was proved that: 1. Development of spontaneous heating in district with red and multicoloured layers goes with pronounced dynamics. 2.
   Methods of early detection od spontaneous heating often fail in the regions with red beds, 3. Rocks within red beds bodies and in their close vicinity are often extremely unstable, with layers being of breccia type. This leads to an easy penetration of the air oxygen towards the coal. With respect to the above findings, it was decides to prevent endogenous fires within red beds by conducting the mining work in suddicient, safe distance from these bodies. Rules to economy demarcation of the protective pillar from red beds are recommended and described
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    25. 3. 2008
Import date
    8. 8. 2012