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Research on the Present Situation and Developing Tendency of Karst Collapse and Techniques for Its Supporting

Lei Mingtang; Jiang Xiaozhen(Institute of Karst Geology, Chiuese Academy of Geo-scienes, Guilin, 541004)  
In recent years, increasing karst collapses have drawn more and more attention of the central and the local governments. Mitigating the losses of karst collapses effective-ly have become a key job to most karst workers. This paper reviews the main achieve-ments of karst collapse research, points out a series of comprehensive methods hicluding analysis, evaluation, and monitoring, which are the potential powerful way to reduce karst collapse. And the techniques of risk evaluation, temporal and spatial forecasting, testing and information management system are discussed in detail.
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