dc.contributor.author | Keverne, B. | |
dc.contributor.author | Howe, J.H. | |
dc.contributor.author | Pascoe, D.M. | |
dc.contributor.author | Eyre, Matthew | |
dc.contributor.author | Coggan, John | |
dc.date.accessioned | 2015-06-26T08:17:35Z | |
dc.date.issued | 2015-10 | |
dc.description.abstract | Effective engineering characterization of granites altered through processes of kaolinization is critical for safe extraction and design of slopes for the china clay industry in south-west England. This case example describes the remediation undertaken to alleviate the significant hazard associated with a 26m high legacy slope within an operating china clay pit. Remote rock mass characterization of the hazardous slope was undertaken using terrestrial laser scanning from numerous set-up locations to provide geo-spatial data for blast design, kinematic analysis and subsequent instability analyses. The trial pre-split blast resulted in a reduced overall slope angle and sufficient space for design of a suitable rocktrap, thereby reducing the risk to acceptable levels when following a Rockfall Hazard Appraisal System (RHAS). The trial also provided useful guidelines for future use of the technique, particularly for implementation when considering controlled blasting when approaching final pit wall limits. | en_GB |
dc.description.sponsorship | European Commission under the 7th Framework Programme | en_GB |
dc.identifier.citation | Eurock2015: 64th Geomechanics Colloquium | en_GB |
dc.identifier.grantnumber | 310645 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/17673 | |
dc.language.iso | en | en_GB |
dc.relation.url | http://www.eurock2015.com/en/general-information-2/salzburg-38/ | en_GB |
dc.title | Remediation of a hazardous legacy slope face using pre-split blasting | en_GB |
dc.type | Conference paper | en_GB |
dc.date.available | 2015-06-26T08:17:35Z | |
dc.description | Eurock2015: 64th Geomechanics Colloquium, Salzburg, Austria, 7-10 October 2015 | en_GB |