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《Earth Science-Journal of China University of Geosciences》 1992-01
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Wu Qiang Chen Mingyou Tian Kaiming (China University of Geosciences Beijing 100083) Tian Jiping (Guangzhou University)  
From the sectional perspective , the coalfield of the North China is characteristic of multilayer porous and karst-fissure aquifers which are connected together hydraulically.From the plane view , every aquifer is characteristic of irregular spatial distribution and complicating boundary position as well as boundary conditions . Although the problems of preventing water break through under coalbed and of forecasting the water inflow in mine in the coalfield of the North China have been studied for over four decades , all models reported in the past literatures are limited to two-dimensional models in one aquifer for the problems . In order to reflect really sectional and plane mine - deposit - hydrogeological characteristics for the coalfield of the North China , and to reduce the calculative errors which are caused by the differences between model conditions and real conditions in the model , the paper is the first to present a para -three-dimensional finite-element model ,in which a typical application example is also presented to verify the proposed model successfully .This is , no doubt , of great important significance for solving the common problems met in developing the coalfield of the North China .The further development of the para-three-dimensional numberical model and field applications are going on , and will be reported in the future papers .
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