含水层对地下水热泵承载力数值评价及其实用化:以北京平原区为例

摘要

针对北京平原区的水文地质条件,运用地下热传递数值法评价了年内地下热量均衡、失衡两种状态下,各水文地质亚区单位面积含水层对地下水热泵的承载力,并利用多元线性回归方法阐明了承载力、抽灌井间距与含水层各参数之间的关系.研究表明:承载力仅与含水层厚度显著正相关,而抽灌井间距与含水层的渗透系数和厚度均显著正相关.研究结果为类似地区的地下水热泵定量规划提供了简捷的估算方法及参考依据.%Based on the hydrogeological condition division of Beijing Plain, the numerical model of heat transport was used to evaluate the aquifer energy load capacity per square kilometer on the condition of groundwater heat equilibrium and disequilibrium. The multiple linear regression method was used to analyze the impact of aquifer parameters on energy load capacity, distance between pumping well and injection well. The research shows that energy load capacity is positively related to aquifer thickness, and that distances between pumpinginjection wells are positively related to aquifer thickness and permeability coefficient. The results can provide the simple calculating method and reference for groundwater heat pumps plan in similar area to Beijing Plain.