Search results for ""Author Derek Martin""

Weak rocks encountered in open pit mines cover a wide variety of materials, with properties ranging between soil and rock. As such, they can provide a significant challenge for the slope designer. For these materials, the mass strength can be the primary control in the design of the pit slopes, although structures can also play an important role. Because of the typically weak nature of the materials, groundwater and surface water can also have a controlling influence on stability.Guidelines for Open Pit Slope Design in Weak Rocks is a companion to Guidelines for Open Pit Slope Design, which was published in 2009 and dealt primarily with strong rocks. Both books were commissioned under the Large Open Pit (LOP) project, which is sponsored by major mining companies. These books provide summaries of the current state of practice for the design, implementation and assessment of slopes in open pits, with a view to meeting the requirements of safety, as well as the recovery of anticipated ore reserves.This book, which follows the general cycle of the slope design process for open pits, contains 12 chapters. These chapters were compiled and written by industry experts and contain a large number of case histories. The initial chapters address field data collection, the critical aspects of determining the strength of weak rocks, the role of groundwater in weak rock slope stability and slope design considerations, which can differ somewhat from those applied to strong rock. The subsequent chapters address the principal weak rock types that are encountered in open pit mines, including cemented colluvial sediments, weak sedimentary mudstone rocks, soft coals and chalk, weak limestone, saprolite, soft iron ores and other leached rocks, and hydrothermally altered rocks. A final chapter deals with design implementation aspects, including mine planning, design implementation, monitoring, surface water control and closure of weak rock slopes.Key Features: Illustration of the best practice in modern open pit mines State of the art approaches for challenging designs Use of numerous case histories written by large-open pit operators to illustrate state of practice Individual chapters/sections written by leaders in the industry As with the other books in this series, Guidelines for Open Pit Slope Design in Weak Rocks provides guidance to practitioners involved in the design and implementation of open pit slopes, particularly geotechnical engineers, mining engineers, geologists and other personnel working at operating mines.

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A BBC Radio 4 full-cast drama starring Derek Martin, the precursor to the popular TV series and novels. Jack Frost is disheveled, disorganised and disrespectful. His superiors don't like him. He has a habit of doing things his way – and getting results. But when Denton CID is faced with a spate of major crimes, Frost finds himself under pressure. A young woman becomes the sixth victim of a multiple rapist, a teenage girl goes missing, there's a robbery at the Purple Parrot nightclub, and an old man is injured in a hit-and-run. With all this on his plate, Frost has little time and less patience for paperwork – but if he doesn't submit the overtime reports, there will be hell to pay. Has Frost bitten off more than he can chew? A Touch of Frost gave rise to a hugely successful TV series that ran between 1992 and 2010. This gritty drama, first broadcast on Radio 4 in 1982, features Derek Martin as Jack Frost, with a supporting cast including Haydn Wood, Stephen Thorne and Alan Dudley. Classic Radio Crime: presenting vintage detectives for your investigation! Duration: 1 hour 25 mins approx.

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