Provides geological information about potential ground movement or subsidence in GB. Some materials change in volume through seasonal wetting and drying whilst others undergo a rapid reduction in volume and can collapse when a load is placed on them (such as a building) and/or when they become saturated with water. Volume reductions may happen uniformly or unevenly causing different hazards for lenders, developers, building owners and insurers.
Includes indicators for the following hazards and a debris flow susceptibility model is available separately: - collapsible deposits (volume reduction under load); -compressible ground (as water is squeezed out from peat, clay); - landslides (potential slope instability); - running sand (fluidised by water); - shrink swell (a major hazard in clay soils); - soluble rocks (rock-salt, gypsum and limestone, including chalk). More information and samples
Product details
Product:
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BGS GeoSure
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Author:
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British Geological Survey
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Licence: | view pdf |
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