CAJ | 학술논문

地下水位下降导致土体有效应力变化，发生饱和-非饱和固结沉降。基于单相流假设和Bishop有效应力原理，结合简化的直线型土水特征曲线，建立了反映地下水位下降土层饱和-非饱和沉降的数学模型。计算分析了不同水位降深饱和、非饱和区域的沉降量，结果表明，地面沉降随着地下水位降低不断增大，非饱和区土体沉降量占总沉降量的比例增加。
지하수위하강도치토체유효응력변화，발생포화-비포화고결침강。기우단상류가설화Bishop유효응력원리，결합간화적직선형토수특정곡선，건립료반영지하수위하강토층포화-비포화침강적수학모형。계산분석료불동수위강심포화、비포화구역적침강량，결과표명，지면침강수착지하수위강저불단증대，비포화구토체침강량점총침강량적비례증가。
Saturated-unsaturated consolidation settlement occured due to effective stress change during ground water level fall. Based on the single-phase flow hypothesis and the unsaturated effective stress principle, incorporated the linear soil-water characteristic curve, a mathematical model which can consider settlement in both saturated zone and unsaturated zone was derived. Saturated-unsaturated settlement of the different water level fall was calculated, re- suits showed surface subsidence increases with the decline of water table, the proportion of settlement of unsaturated zone is amplified.