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在边坡稳定性研究中,吸力的影响经常被忽略。基于非饱和土的渗流理论,利用数值分析方法研究了一个由于连续降雨导致的非饱和土边坡失稳的工程实例。研究结果表明:非饱和土的吸力对于维持边坡稳定具有重要影响,而吸力与降雨频率、降雨量、降雨时间、蒸发量等密切相关。对于工程实践而言,吸力的监测对于维持土坡稳定具有重要意义。
In slope stability studies, the effect of suction is often neglected. Based on the seepage theory of unsaturated soils, a case study of instability of unsaturated soils caused by continuous rainfall was studied by means of numerical analysis. The results show that the suction of unsaturated soil has an important influence on maintaining the stability of the slope, and the suction is closely related to the rainfall frequency, rainfall, rainfall time and evaporation. For engineering practice, the monitoring of suction is of great importance to maintaining the stability of the soil slope.