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| DOI：10.13522/j.cnki.ggps.20180462 |
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| Deep Groundwater Equilibrium Analysis and Exploitation Contorl Plansin Tianjin Plain |
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LI Shaofei, MA Shuai, PENG Hui , CHAI Yabin
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1. College of Hydraulic Engineering, Tianjin Agricultural University, Tianjin 300384, China 2. Hydrology and Water Resources Survey and Management Center of Tianjin City, Tianjin 300061, China
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| Abstract: |
| 【Objective】Equilibrium analysis of deep groundwater is an important basic work for reasonable development of groundwater resource. 【Method】The multi-layer bearing beds structure in Tianjin Plain was divided into five layers. Based on generalized?boundary?conditions, hydrogeologicalparameter zones, and source?term, exploitation quantity of each layer in each town, evaporation, and observation well data, using visual modflow, deep groundwater flow distribution in Tianjin plain was simulated and established. At the end of simulation period, the simulation?and measured flow?field were in consistence. 【Result】The correlation coefficient of layer Ⅱ~Ⅴ are 0.961, 0.968, 0.951, 0.960, respectively. The dynamic?change?of?groundwater?level of typical observation well fit well. Then water resources equilibrium?analysis was conducted. In 2013—2015，storage change of deep groundwater are -12 499.3×104、-12 055.7×104、-9 257.81×104m3, respectively. 【Conclusion】Deep groundwater of Tianjin Plain is still in an over-explored state, which is consistent with the ?actual?condition. |
| Key words: deep groundwater; flow simulation; water resources; equilibrium analysis; exploitation control plans |
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