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| Prediction and evaluation of shaft water inflow in Yingjun No. 3 Mine |
| Fu Jingjing |
| The first hydrogeological team of China Coal Geology administration, Handan 056004, China |
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Abstract In this paper, according to the hydrogeological parameters obtained from the pumping test of the sub aquifer in three shafts of Yingjun No. 3 Mine, the water inflow of the main shaft, auxiliary shaft and return air shaft of Yingjun No. 3 coal mine was predicted by using the large well method, for the failure pumping test of the aquifer in the whole well section, and the situation was unable to obtain the hydrogeological parameters of all the aquifer in the single well, According to the conditions of simple geological structure, basically no formation inclination, and close distance between the well inspection hole and the center of the well shaft, based on the hydrogeological parameters obtained in this hole and the maximum hydrogeological parameters of the pumping test obtains the water inflow of the aquifer, the forecast results were analyzed. Finally, the freezing method and the process were given.
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