【摘要】 本文以实例表述了开采地下水对水文地质条件的影响,及其引起的土体变形对工程的危害。从物理和力学观点探讨了开采地下水引起土体变形的三种机制:疏干区土自重的增加;承压含水层水压力的降低;饱水区渗流场水力梯度的变化。在变形机制探讨的基础上,提出了估算开采地下水引起土体变形的力学模型。更多还原

【Abstract】 The influence of exploitation of ground water on the condition of hydrogeology and the damage to engineering due to the deformation in earth mass induced by exploiting ground water is illustrated. From the point of physical and mechanical view, three mechanisms of deformation in earth mass induced by exploiting of ground water were discussed: the increase of soil weight due to the change of unit weight from submersed state to dry state; the change of seepage force in saturated earth mass; the decrease of water pressure in the earth mass under impermeable layer. On the basis of research on the mechanism of deformation, a mechanics model for analysis of the deformation in earth mass induced by exploiting ground water is presented.更多还原