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为减少地下水源热泵运行对地下空间的影响,运用颗粒迁移理论研究了地下水源热泵长期运行时渗透系数对含水层参数变化特性的影响。结果表明,随着地下水源热泵的长期运行,含水层孔隙率和渗透系数的变化特性与渗透系数的初始值无关,而承压水头的变化特性则受渗透系数的影响,渗透速度为影响含水层参数变化的重要因素之一,较小的渗透速度可有效减少地下水源热泵运行对地下空间的影响。
In order to reduce the influence of groundwater source heat pump operation on underground space, the effect of permeability coefficient on the variation characteristics of aquifer parameters is studied using the theory of particle migration when long-term operation of ground source heat pump. The results show that with the long-term operation of groundwater source heat pump, the variation of porosity and permeability coefficient of aquifer has nothing to do with the initial value of permeability coefficient, while the variation of pressure head is affected by the permeability coefficient, which affects the aquifer One of the important parameters of the change of parameters, the smaller penetration velocity can effectively reduce the impact of groundwater source heat pump operation on underground space.