13th September 2016 Investigation June Roof Fall continued
13.09.2016. Fall Investigation Interviews + comments MRE – Grosvenor Coal Mine –
POINTS TO NOTE
Group Interviews make any prospects of a Statement from any of these workers being used in Legal Proceedings non-existent.
Neither crew were consulted following recognised risk assessment which should have been triggered by the change of management process NO WORKER INVOLVEMENT.
CLEAR BREACH OF ACT
There was total reliance in the technical expertise applied during the change management process.
WHO WERE THE TECHNICAL EXPERTS? Internal or external?
NO DATA FOR CONVERGENCE in 8 x 1.8m bolting pattern only for where megabolts are installed.
HOW IS THAT POSSIBLE?
HOW DO THEY RUN ANY ROOF SUPPORT PROGRAM?
ARE THERE TARPS?
DO THEY RELY ONLY ON VISUAL INDICATIONS BY WORKERS AND ERZC’S ONLY?
Specific reference was made to items discussed with management post failure – was elevated in situ methane content related to ply 1 & 2 given consideration WORKERS AWARE OF ISSUES RELATED TO METHANE IN FLOOR.
IS CUTTING PROFILE TO KEEP SEAM IMPURITIES DOWN AND LEAVING GASSY FLLOR PLY?
was there an interim support pattern/system which might have been considered?
why was the change initiated immediately after 18ct conditions were seen as very heavy even in comparison with previous cut throughs?
VERY GOOD QUESTIONS.
WILL THEY EVER GET THE ANSWER?
CLOSE OUT MEETING
I spoke, after the interviews with Mr Adam Foulstone, regarding his response to my last MRE dated 6 September 2016 which sought further explanation of geotechnical issues posed by Inspector Deon Esterhuizen.
I indicated that he should respond as soon as possible and that would allow some consideration of the matter before Inspectors Shaun Dobson and Jacqui Vinnicombe attend the Mine next Wednesday 21 September 2016.
DEALING WITH STRATA SUPPORT SEEMS TO BEING LEFT TO INSPECTORS DOBSON and VINNICOMBE.
NO DIRECTIVES ISSUED NO ACTION TAKEN
