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Published in:
2010 | OriginalPaper | Chapter
Numerical Computing and Forecasting to Land Subsidence in Coastal Regions of Tangshan
Authors : Jing Tan, Zhigang Tao, Changcun Li
Published in: Information Computing and Applications
Publisher: Springer Berlin Heidelberg
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Coastal areas are an important part of Tangshan, which groundwater has been over exploited for a long time. The hazard of land subsidence has appeared and kept aggravating continuously. By studying the hydrogeology and engineering geology condition, a new understanding of deformation mechanism of land subsidence in Tangshan coastal areas has been found. According to the distribution of groundwater funnel(GF) and monitor data of groundwater, firstly, the mathematical model of developing tendency of GF is established and it is verified the results are similar with the real results. Then the conception of groundwater dynamics coefficient has been introduced and the development tendency model is established according to the depth value of GF center water above. Finally, combine the mathematical model and the rate of land subsidence, establish the numerical analysis model about land subsidence. The results conform to the truth of subsidence of coastal areas.