Subsidence prediction techniques in the United States: a state-of- the-art review

This paper reviews some of the objectives and accomplishments of a comprehensive subsidence research programme conducted by Virginia Polytechnic Institute and State University during the past ten years. Particular emphasis was placed upon the accuracy and versatility of the prediction models for subsidence and strain calculations in the eastern US coalfields. Additionally, the effect of time on subsidence development was evaluated in depth. Examples are also presented in this paper highlighting the applicability and limitations of the models when used to predict surface movements in other major coalfields. -from Authors