以安阳市某地下水源热泵系统为研究对象, 采用水均衡法预测压采量上升后安阳市地下水水位变化趋势, 并构建研究区地下水位变化条件下的井群抽回灌地下水水2热耦合模型, 将不同井群布局方案对地下水流场与温度场的影响进行量化, 同时采用优化理论建立井群调控模型对井群布局方案进行优选。研究结果表明: 压采量为 3 000 万 m3 时, 地下水位将上升 5.7 m, 此时抽水井相间的直线布局方案的综合效益最大; 当压采量上升至 5 000 万 m3 时, 地下水位将上升 8.4 m, 此时抽水井异侧的矩形布局方案的综合效益最大。

A ground source heat pump system in Anyang was used as the research object. The water balance method was used to predict the change of groundwater level in Anyang , and the groundwater water-heat coupling model of groundwater level change was constructed to quantify the impact of different well group operations. The optimization theory was used to establish a well group control model to optimize the layout of the well group. The results showed that: when the production pressure increased to 3×10 7 m3 and the groundwater level raised by 5.7 m, the best scheme for well group layout was linear on interphase pumping wells, whereas, when the production pressure increased to 5×10 7 m3 and the groundwater level increased by 8.4 m, the best plan for well group layout was rectangular on different sides of the pumping well.

国家自然科学基金面上项目( 51679218; 51879239)