Occurrence Characteristics of Shallow Geothermal Energy in Chongli District,Zhangjiakou City
Taking Chongli District of Zhangjiakou City as the study area,this paper fully utilizes previous data to analyze the geological structure,hydrogeological conditions,thermal properties of rock and soil,and shallow geothermal field characteristics,roughly identifying the conditions for the occurrence of shallow geothermal energy in the research area.Research has found that the main rock types in the study area are metamorphic and intrusive rocks,with a relatively small distribution range and thickness of the Quaternary system,and the thermal conductivity of each rock is 1.68～5.27 W/(m·K),and the specific heat capacity is 0.709 5～0.883 7 kJ/(kg·K);groundwater is mainly distributed in the Quaternary system of river valleys and the weathering zone at the bottom of valleys,with HCO3-Ca being the main hydrochemical type of groundwater;the favorable areas of geothermal field are distributed near the Shangyi-Pingquan deep fault and its secondary faults.It is recommended to use an efficient heat exchange ground-source heat pump system to provide energy for cooling and heating in Chongli District.
shallow geothermal energyoccurrence characteristicsgeothermal fieldground-source heat pumpChongli District,Zhangjiakou City
万方数据
维普
