河流对含水层地温场的影响分析  

Analysis of the influence of rivers on geothermal field of aquifer

作　　者：姚梅[1] 王菲[1] 刘佩贵[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2015年第8期1086-1090,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51309071)

摘　　要：文章依托某地下水源热泵系统工程,建立区域地下水热耦合数学模型,研究分析典型枯水年内河水位对浅薄含水层地温场的影响。结果表明:典型枯水年河水位变化会导致浅薄含水层冬季抽水井中心降深最大影响范围达到8.1km2,夏季达到7.6km2,最大降深值随河水位抬高将逐渐减小;浅薄含水层地温能开发利用之后,温度场也会发生相应变化,与天然状态相比,冬季降,夏季升;浅薄含水层所提供的地温能受冬、夏河水位的影响,与实际所需负荷产生矛盾,需要采取合理可行的工程措施,满足对冷、热负荷的需求。Taking a groundwater source heat pump project as an example, the numerical model of water-thermal transport is established, and the mechanism of geothermal field of aquifer responding to the change of river level in the typical dry year is analyzed. The result indicates that in the typical dry year, the change of the river level causes that the area of drawdown which is located near the centre water level of shallow aquifer is 8. 1 km^2 in winter and 7. 6 km^2 in summer. When the river level rises, the maximum drawdown will decrease. After shallow geothermal energy is exploited, the temperature field will change, and compared with native state, the temperature rises in summer and descends in winter. The shallow geothermal energy affected by the river level in winter or summer is contradictory to the demand. Some rational and feasible steps should be taken to meet the cooling and heating load requirement.

关 键 词：地下水 河水位 温度场 负荷 

分 类 号：P314.2[天文地球—固体地球物理学]