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Document ID (ISN)51300
CIS number 89-644
ISSN - Serial title 0509-6510 - Prace Centralnego instytutu ochrony pracy
Year 1987
Convention or series no.
Author(s) Staroń T.
Title Crump prevention by forcing water into unmined coal
Original title Zapobieganie tąpaniom przez wtłaczanie wody do calizny węglowej [in Polish]
Bibliographic information 1987, Vol.37, No.133, p.93-106. 8 ref.
Abstract Examples of crump prevention by forcing water into holes in unmined coal are presented. An attempt was made to determine the extent of crack propagation and establish a criterion of destruction of coal bed structure by forcing water. Destruction of coal bed cohesion limits crump hazard. A model is presented for selecting hydraulic parameters of liquid spreading in the coal bed during water injection. Observations are presented that can be used in practice to limit crump and tremor hazard.
Descriptors (primary) protection against natural phenomena; coal mining; rockbursts
Descriptors (secondary) theoretical analysis
Document type D - Periodical articles
Subject(s) Mines and quarries
Broad subject area(s) Physical hazards
Browse category(ies) Mining and quarrying
Natural phenomena