在我国分布着许多由松散沉积物组成的孔隙承压含水系统,通常包含大量的粘性土层。开采这些孔隙含水系统时,往往发生粘性土释水,并由此而产生地面沉降。本文根据国内地面沉降的观测资料,探讨了开采孔隙承压含水系统过程中,粘性土的释水机制和规律及其在地下水资源评价中的意义。 In our country, there are many pore-bearing aquifer systems consisting of loose sediments, usually containing a large amount of clay. In the exploitation of these porous aquifer systems, the release of cohesive soil often occurs and ground subsidence occurs. Based on the observation data of ground subsidence in China, this paper discusses the mechanism and rules of the release of cohesive soil and its significance in the evaluation of groundwater resources during the exploitation of pore-bearing aquifer system.