| 1. | Analysis about rainfall influence on volumetric moisture content of unsaturated zone
大气降雨对土坝非饱和区含水率影响分析 |
| 2. | Calculation of seepage with fem in earth dam considering the effect of unsaturated zone
考虑非饱和区影响的土石坝渗流有限元计算 |
| 3. | Laws about volumetric moisture content changes and wetting deformation in unsaturated zone are analysed according to different rainfall intensities and duration by saturated - unsaturated seepage theory in this text
摘要运用非饱和渗流理论分析了不同降雨强度和降雨持续时间对土坝非饱和区含水率变化规律。 |
| 4. | Considering the shear strenth of unsaturated soil , the method of analysis of limit equilibrium has been approved and it can be used in the analysis of the stability of saturated - unsaturated slopes
在考虑非饱和区土体抗剪能力的情况下，对传统的边坡极限平衡分析方法作了改进，使之可应用与饱和?非饱和区土体的边坡稳定问题。 |
| 5. | Rainfall infiltration induces rock slope to slip by mostly changing seepage flow field in unsaturated zone of slope , and infiltration under different rainfall degrees is special instance of rainfall infiltration
摘要降雨入渗主要是通过改变岩体边坡非饱和区渗流场引发边坡发生滑坡的，而不同降雨强度下的入渗又是降雨入渗的特例。 |
| 6. | The result shows soil masses in surface layer reach saturation more easily under great rainfall intensity and long - lasting rainfall , at the same time , there are big infiltration depth and influence of wetting deformation
结果显示，降雨强度越大、降雨持续时间越长，非饱和区土体含水率变化也大，坝坡表层土体较容易达到饱和，并且降雨影响深度也大，对坝坡表面湿化裂隙的产生及坝坡稳定性影响大。 |
| 7. | Based on the calculation model and theory of saturated - unsaturated soil seepage , this passage takes the influence of unsaturated zone in seepage field on dam seepage into account , and it also does the seepage finite element calculation and analysis for a certain earth dam
基于饱和非饱和土渗流计算模型与原理，本文考虑渗流场非饱和区对堤坝渗流的影响，对某土石坝进行了渗流有限元计算与分析。 |
| 8. | Study shows that great rainfall influences soil slope safety factor markedly , magnitude of rainfall intensity has a great influence on slope safety factor for steep slope under certain coefficient of saturated conductivity , the surface plant roots affect unsaturated zone seepage field distribution and postpone unsaturated zone moisture content ' s increase , so the soil slope safety factor is enhanced finally
分析结果表明，在土体饱和渗透系数一定的条件下，强降雨对土坡稳定系数影响显著；土坡越陡，降雨强度大小对土坡安全性影响就俞显突出；土坡表层植物根系的存在影响非饱和区渗流场分布，可以延缓非饱和区含水量的增大，土坡稳定系数得到提高。 |
| 9. | Thereby the complicated evaporation process of heterogeneous soil surface is simplified into a flux integral expression which contains two - pail contributions from soil water relatively saturated region and unsaturated region , and it is proved that the calculation of mean evapotranspiration efficiency in grid region can be simplified into weighted average of heterogeneous regions
从而将非均匀地表区域的蒸发过程的复杂机制分解为地表层土壤水分饱和区与非饱和区影响下的通量贡献积分式，从理论上证明，网格区平均蒸散率的计算可简化为不同性质的区域加权平均。 |
| 10. | The soil - water characteristic curve , the coefficient of saturated hydraulic conductivity and the initial state of medium ; in the paper , the influence of rain infiltration on the slope stability is discussed , which is very helpful for forecasting slope stability in raining seasons and designing slopes in deep unsaturated zone
）介质的本身性质，如土水特性曲线、饱和渗透系数、及介质的初始状态；通过本文的研究，初步分析探讨了降雨入渗对边坡稳定性的影响，为在雨季边坡失稳的预报和具有深厚非饱和区的边坡的设计提供了科学的依据，具有一定的工程意义。 |
