A study of the water resources management and division of the groundwater heat pump system construction in Anyang

Abstract

Considering the occurrence condition and water resources management, this paper studies the zoning of the groundwater heat pump system in the city of Anyang in Henan, makes the combination of technology and management and improves the evaluation standard, which is of good practicability. The evaluation of groundwater resources management and division is established by synthetically analyzing the hydrogeological, hydrodynamic and hydrochemical conditions of Anyang. The first-level evaluation is carried out by using the improved analytic hierarchy process of cloud model. The second-level evaluation is completed by using GIS spatial analysis function, dividing the groundwater heat pump system into three grades in the study area. The results show that the suitable development area for the groundwater heat pump system is 117.45 km2, which mainly distributes in the strong groundwater-abundant area in the center of the alluvial-proluvial fan of the Anyang River and partially distributes in the peripheral area at the fan edge. The restricted development area covers an area of 459.26 km2, which distributes in the hilly weak groundwater-abundant areas in southwest and north of the fan margin with the groundwater level drawdown funnel in the center of the fan body. The forbidden development area is of 24.02 km2 and distributes crossly, covering the water source area, the protected area of the South-to-North Water Transfer Project, along the railway and expressway. It is more comprehensive and reasonable to take the groundwater resources management and division into account on the basis of the suitability zoning, which may provide references for the scientific layout and rational development and utilization of the groundwater heat pump system.