| Citation: |
SUN Yue, YUE Yun-hua, LIU Zhong-gang, CAI Zhi-chuan, ZHENG Tao. EVALUATION ON THE GROUNDWATER RESOURCES IN RIVERSIDE EMERGENCY WATER SOURCE BASED ON GMS[J]. Geology and Resources, 2019, 28(1): 72-77.
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EVALUATION ON THE GROUNDWATER RESOURCES IN RIVERSIDE EMERGENCY WATER SOURCE BASED ON GMS
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Abstract
The hydrogeological conceptual model is constructed according to the hydrogeological conditions of Taiping-Zhongcang emergency water source in Tongling City. On this basis, the numerical simulation model of groundwater flow is established by 3D visualization software GMS, and then identified and verified. The simulation period is an emergency water supply cycle of 180 days (Jan. through Jun., 2017) with confined groundwater as the mining layer. The results show that the allowable exploitation of water source is 11.94×104 m3/d, which reaches large scale (5×104-15×104 m3/d), under the condition of uniform distribution of wells, with mining well level drawdown not exceeding the roof of confined aquifer. Under the condition of emergency exploitation, the lateral seepage supply of Yangtze River is stimulated, accounting for 27.82% of the total water exploitation amount. The simulation data is also used for preliminary study of the conversion rules between ground and surface water.
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References
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SUN Yue, YUE Yun-hua, LIU Zhong-gang, CAI Zhi-chuan, ZHENG Tao. EVALUATION ON THE GROUNDWATER RESOURCES IN RIVERSIDE EMERGENCY WATER SOURCE BASED ON GMS[J]. Geology and Resources, 2019, 28(1): 72-77.
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Figure 1.
Ranges, boundaries and initial flow field of confined groundwater in water source field
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Figure 2.
Flow-field fitting effect of phreatic groundwater at the end of simulation period
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Figure 3.
Flow-field fitting effect of confined groundwater at the end of simulation period
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Figure 4.
Fitting curves for phreatic groundwater level of observation well in the simulation period
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Figure 5.
Fitting curves for confined groundwater level of observation well in the simulation period
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Figure 6.
Layout of mining wells for confined groundwater in the water source