Experience in Collapse Risk Assessment of Building on Covered Karst Landscapes in Russia


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Karst Management


Problems that arise during development of terranes with carbonate and sulfate-covered karst are discussed herein and are based on experiences in Russia, where karst terranes constitute one third of the total territory. Different karst hazards are considered with respect to various types of construction and facilities. Karst hazards caused by sinkholes are classified according to specific sinkhole development intensity (ten categories) and average sinkhole diameter (eight categories). Some examples of accidents causing damage to buildings are presented and the reasons for the accidents are discussed. The main stochastic laws describing sinkhole development are considered. A method of evaluation of karst collapse risk and assessment of the risk level is presented. Application of this method helps to plan an antikarst protection program with both capital and maintenance types of prevention activity.

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