ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)22283
CIS number 75-204
ISSN - Serial title 0536-1028 - Gornyj žurnal - Izvestija vysših učebnyh zavedenij
Year 1974
Convention or series no.
Author(s) Pigida G.L.
Title Assessment of duration of peaks above maximum admissible methane concentrations
Original title Raspredelenie dlitel'nosti prevyšenij dopustimogo urovnja koncentracii metana [in Russian]
Bibliographic information May 1974, No.5, p.80-85. Illus. 5 ref.
Abstract Description of a mathematical method for assessing both the average concentration and the duration of peaks above the maximum admissible concentration of methane contained in the air emerging from mine workings. The method is based on the probability of methane outbursts and has been experimentally tested. The assessment of the above parameters is vital for the design of automatic safety systems for gassy coal mines.
Descriptors (primary) mine gases; gas emission; coal mining; explosive atmospheres; hazard evaluation; methane
Descriptors (secondary) outbursts of gas; probability analysis
Document type -
Subject(s) Mines and quarries
Broad subject area(s)
Browse category(ies) Risk evaluation
Natural phenomena
Aliphatic and alicyclic hydrocarbons
Mining and quarrying
Explosions