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Safe Manriding in Mines Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets Parts 2A and 2B

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Safe Manriding in Mines Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets Parts 2A and 2B Health and Safety Executive Safe manriding in mines Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets Parts 2A and 2B The National Committee A National Committee for Safety of Manriding in Shafts and Unwalkable Outlets was formed and first met on 3 December 1973 and their first report was published in 1976. The Committee commenced work on their second report on 23 March 1976, the members being as follows: Chairman J D Blelloch Director of Engineering, National Coal Board Deputy S Luxmore, HM Principal Electrical Inspector of Mines and Chairman Quarries, Health and Safety Executive Members T K Clanzy HM Principal Inspector of Mechanical Engineering in Mines and Quarries, Health and Safety Executive J B Hall Chief Mechanical Engineer, National Coal Board H M Harrison Mechanical/Electrical Inspector, National Union of Mineworkers R Hartill Chief Electrical Engineer, National Coal Board L C James Head of Technical Services, Mining Research and Development Establishment, National Coal Board E Loynes Representing the Association of Mining Electrical and Mechanical Engineers H D Munson Head, Engineering Group, Safety in Mines Research Establishment, Health and Safety Executive A Rushton Representing the British Association of Colliery Management A J Williams Chief Maintenance and Energy Engineer, National Coal Board This is a web-friendly version of Safe manriding Secretary G Scott HM District Inspector of Mines and Quarries, in mines: Second Report Health and Safety Executive of the National Committee for Safety of Manriding in shafts and Unwalkable Outlets, originally produced by HM Inspectorate of Mines Page 1 of 177 Health and Safety Executive London: Her Majesty’s Stationery Office © Crown copyright 1980 First published 1980 ISBN 0 11 883281 6 This is a web-friendly version of Safe manriding in mines: Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets, originally produced by HM Inspectorate of Mines Safe manriding in mines: Second report Page 2 of 177 Health and Safety Executive Foreword In publishing this second report the committee has completed work on its terms of reference. A section on unwalkable outlets has not been included as many of the principles and recommendations for shafts are considered to apply. The report is in two parts: Part 2A contains considerations, conclusions and recommendations on other items of winding equipment and installations not specifically referred to in the first report; Part 2B contains supporting technical information and guidance on practice. A new committee, having similar representation to the National Committee has been formed to review periodically experience on the application of the first and second Reports on Safe Manriding in Mines, and to make proposals, as appropriate. Information on the work of this committee will be included in the HSE Annual Reports on health and safety in mines. I wish to thank the representatives of all the interested parties for their valuable help and co-operation in fulfilling the committee’s terms of reference. I have no doubt that these two reports will make a positive contribution to the safety aspects of manriding in mines. J S MARSHALL HM Chief Inspector of Mines and Quarries This is a web-friendly version of Safe manriding in mines: Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets, originally produced Note: The Mines and Quarries Inspectorate is now part of the Health and Safety Executive, by HM Inspectorate of consequently Mines and Quarries forms referred to in the text will in future be issued by the Mines Health and Safety Executive, Safe manriding in mines: Second report Page 3 of 177 Health and Safety Executive Contents of Report – Part 2A 1 Introduction 7 2 Winding engines 8 General statement 8 The design guide 8 Guidelines for fabricated, cast and forged components 9 Bolted anchorages for winding engine brakes 10 Contamination of winding engine brake lining materials 10 Retention of electrical braking 11 Automatic application of dynamic braking on AC winding engines 11 Automatic application of electric braking on DC winding engines 12 Brake torque sensing 12 Automatic contrivances: electrical aspects 12 Supervisory devices for automatic contrivances 13 Conveyance position monitoring 13 Emergency brake solenoids 14 Control system safety 15 Electric winding engine drums and drives 17 Steam winding engines and auxiliaries 19 Friction between rope and drum 19 Assessment of reliability of systems 20 Emergency winding apparatus 20 3 Headframe and shaft equipment 21 Design principles for arresstors in friction winding installations 21 Pit bottom buffers 23 Conveyance suspension gear 24 Conveyances for manriding 26 Winding ropes 27 Rope and rigid guides 28 Balance ropes 31 Control of balance rope loops 32 Monitoring of balance rope loops 32 Termination of wire ropes 33 Shaft side equipment 33 Shaft signalling systems 38 Headframe pulleys 40 This is a web-friendly 4 Maintenance, testing and training 41 version of Safe manriding in mines: Second Report Statutory reporting 41 of the National Committee Planned activities related to mining environment 41 for Safety of Manriding Maintenance procedures and documentation 41 in Shafts and Unwalkable Maintenance of foundations, buildings, structures and shaft linings 43 Outlets, originally produced Maintenance of equipment in towers, headframes and sumps 43 by HM Inspectorate of Maintenance of ropes in winding installations 44 Mines Lasers and other devices for aligning shaft equipment 45 Safe manriding in mines: Second report Page 4 of 177 Health and Safety Executive Protection of steelwork from corrosion 45 Shaft air heating 45 Non-destructive testing of components of winding apparatus 46 Reassessment of non-destructive testing 46 Monitoring of mechanical equipment 49 Testing of friction winding engines 50 Brake performance test 50 Training for work in shafts 52 5 Other winding practices 53 Control systems: push button winding 53 6 Abstract of recommendations 54 7 Further work 58 Part 2B (including list of contents) 59 This is a web-friendly version of Safe manriding in mines: Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets, originally produced by HM Inspectorate of Mines Safe manriding in mines: Second report Page 5 of 177 Health and Safety Executive PART 2A Principles and recommendations for Shafts This is a web-friendly version of Safe manriding in mines: Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets, originally produced by HM Inspectorate of Mines Safe manriding in mines: Second report Page 6 of 177 Health and Safety Executive 1 Introduction 2 The first report, Parts 1A and 1B, of Safe Manriding in Mines was published in one volume in 1976 following the Public Inquiry into the winding accident at Markham Colliery, Derbyshire, in 1973. A new philosophy of braking for winding engines is set out in the first report with recommendations for implementing that philosophy. Information is also provided, and recommendations are made, on headframe and shaft equipment, maintenance, testing and training, and other winding practices. 2 The first report was published as soon as possible so that guidance on improving standards of braking and associated equipment of winding engines could be provided in advance of more general considerations. Items then outstanding, including incomplete work and some new subjects, are scheduled in section 7 of Part 1A. The terms of reference given to the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets were moreover TO CONSIDER ALL SAFETY ASPECTS OF MANRIDING IN SHAFTS AND UNWALKABLE OUTLETS AND TO MAKE RECOMMENDATIONS. 3 This second report is similarly published in Parts 2A and 2B in one volume, and generally follows the arrangement of Parts 1A and 1B. It contains the necessary supplementary information and recommendations to comply substantially with the terms of reference. Furthermore, as a result of experience in implementation of recommendations in the first report, it has been felt necessary to make changes in respect of non-destructive testing; and these are referred to in the text. 4 The sub-committees and working groups, formed by the National Committee for the production of the first report, were reconstituted to produce the second report and have now been disbanded. The National Committee recommends however that a committee remains in being and meets periodically to review developments in manriding in shafts and the further work scheduled in section 7 of Part 2A. 5 Safe manriding in unwalkable outlets has not been separately considered because many of the standards applicable to winding in shafts apply equally to winding in unwalkable outlets and major drifts. With regard to safe manriding in underground roadways, a Haulage and Transport National Steering Committee was formed in 1975 to make recommendations and produce a Safety Catalogue of information on safety standards, practices and design of systems and equipment, with the object of reducing accidents resulting from transport operations. This is a web-friendly version of Safe manriding in mines: Second Report of the National Committee for Safety of Manriding in Shafts and Unwalkable Outlets, originally produced by HM Inspectorate of Mines Safe manriding in mines: Second report Page 7 of 177 Health and Safety Executive 2 Winding engines General statement
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