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The identification, appraisal and assessment of hazards on quarry rock faces in terms of the UK Quarries Regulations

G. D. Matheson and G. M. Reeves
The identification, appraisal and assessment of hazards on quarry rock faces in terms of the UK Quarries Regulations
Quarterly Journal of Engineering Geology and Hydrogeology (May 2011) 44 (2): 259-275

Abstract

The paper discusses the requirements of the Quarries Regulations 1999 and suggests practical techniques that can be used to identify, evaluate and record hazards on quarry rock faces in strong rock. An attempt is made to explain, clarify and simplify the terminology and techniques involved in hazard and risk assessment where they relate to quarry excavations, and present a method of risk evaluation that is transparent, practical and does not rely on complex analytical techniques or probability analysis. In the system, single hazards are identified by a hazard appraisal and the danger to health and safety is evaluated in terms of a hazard level. This hazard level allows hazards to be ranked according to the seriousness of the danger and significant hazards identified. Where multiple hazards are present a hazard rating for the face can be calculated. Significant hazards are then separately evaluated by a geotechnical assessment and a risk rating is estimated by additionally considering exposure to the risks. Risk mitigation actions can be identified by taking into account the nature of the hazard and the risk rating. The two-stage system described is considered to satisfy the core requirements of the Quarries Regulations where the hazard appraisal is performed using competent judgement and the geotechnical assessment using expert judgement to form the basis of a practical and effective method of risk evaluation and management for rock faces in quarries. Other applications are coastal cliffs, road and rail cuttings, and general surface mining. Although a summary of the system was presented at the Extractive Industry Geology Conference in Bath in 2000, the full system has not until now been presented for publication because of commercial implications. The system as described here has been in use in hard rock excavations over a period of 10 years.


ISSN: 1470-9236
EISSN: 2041-4803
Serial Title: Quarterly Journal of Engineering Geology and Hydrogeology
Serial Volume: 44
Serial Issue: 2
Title: The identification, appraisal and assessment of hazards on quarry rock faces in terms of the UK Quarries Regulations
Affiliation: Matrock Consulting, Dalgety Bay, United Kingdom
Pages: 259-275
Published: 201105
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 22
Accession Number: 2011-048432
Categories: Engineering geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
N50°00'00" - N61°00'00", W08°00'00" - E02°00'00"
Secondary Affiliation: HydroGeotechnical, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201127
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