Geotechnical Engineering for Mine Waste Storage Facilities by Geoffrey E. Blight

By Geoffrey E. Blight

The booklet is a finished remedy of the appliance of geotechnical engineering to website choice, web site exploration, layout, operation and closure of mine waste garage facilities.The point and content material are appropriate as a technical resource and reference for training engineers engaged either within the layout and operational administration of mine waste garage amenities and for senior undergraduate and postgraduate scholars. The 13 chapters stick with the series of the existence cycle of a waste garage facility (characterization, web site choice, geotechnical exploration, environmental features, checking out and compaction) and likewise think of using mine waste as a building material.The textual content is liberally illustrated by way of either line drawings and pictures, and the theoretical passages are supported through commonplace try effects, labored examples and thoroughly analysed case histories.

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Example text

As a third example, the frequency of death caused by failures of mine waste storages was at least 1083 in 80 years, of which 1 072 occurred between 1965 and 1996, an average of 35 deaths per year. 3, the site should be regarded as unacceptable. A full risk analysis should be carried out for any site that it is decided to use. The risk analysis should take the form of • • a quantitative analysis of all risks associated with the safety of the proposed waste storage, as it would be constructed on that site, considering the consequences of all possible reasons for failure occurring; a list of recommendations for appropriate design modifications, where necessary to reduce risks to an acceptable level.

Four aspects should be covered by a site investigation report. e. e. present or past surface or underground mining, seismicity or karst (cavernous limestone) and other relevant features associated with the site. 2 Geolo g y Geological maps show the rock formations underlying the site, below the surface soils. These are important as they often influence the type of soil developed on the site. Geological maps will also indicate the presence of features such as faults and dykes. 3 P h ys ic a l g e o g r a p h y The investigation should cover not only the immediate area to be occupied by the proposed waste storage, but also the surrounding area to the extent that it is likely to be affected, or is likely to affect the storage.

1 E x t ent a n d d e t a i l o f i n ve s t i g at i o n The ideal situation is that enough data should be gathered and analysed to ensure that additional exploratory work is unlikely to add significantly to the level of understanding considered necessary for the site under investigation. The extent and detail will also depend on the risk rating of the site and the findings of the environmental impact and risk assessment report. Because these two documents will be based on the preliminary site investigation, the ideal situation cannot occur in a single stage, and it is necessary to investigate in stages.

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