Influence of sand concentration on variation characteristics of aquifer parameters under groundwater source heat pump long-term operation

摘要

The influence of sand concentration on variation characteristics of aquifer parameters, under groundwater source heat pump long-term operation, is theoretically analyzed through numerical simulation method. The present studies show that the sand concentration obviously affects the variations of the porosity and hydraulic conductivity, however, the variation of confined water head is affected inconspicuously. The variations of aquifer parameters are also related with the seepage velocity.