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1)  unsaturated seepage
非饱和渗流
1.
Stability analysis of Dayantang landslide considering the unsaturated seepage caused by heavy rain;
大岩淌滑坡非饱和渗流情况下的稳定分析
2.
Fractal model for unsaturated seepage flow in fractured rock masses;
裂隙岩体非饱和渗流的分形模型
3.
Numerical simulation of the unsaturated seepage field in the Dayantang landslide under the condition of fog rain
雾雨作用下大岩淌滑坡非饱和渗流场数值模拟
2)  unsaturated flow
非饱和渗流
1.
Based on laboratory data of unsaturated flow in clayt,he constitutive model of unsaturated flow coupled model for clay considering plastic strain hardening and Hoek-Brown model is applied to simulate the swelling and shrinking behavior of clay shaft during excavation,concrete lining stage and long time ventilation.
岩体中饱和–非饱和渗流、应力耦合行为对工程岩体的强度和稳定性有十分重要的影响。
2.
Coupled unsaturated flow in claystone has high effect on strength and stability of underground engineering.
非饱和渗流、应力耦合行为是影响粘土类工程岩体的强度和稳定性的重要因素。
3.
A set of experiment devices was specially designed for studies of unsaturated flow in a single fracture under rainfall, a serial of experiments was successfully completed for variable apertures, variable water tables and variable rainfalls.
为明确单裂隙饱和—非饱和渗流的基本规律对整个裂隙岩体渗流的作用,利用自行设计制作的单裂隙渗流实验装置,进行了不同隙宽、不同饱和水位、不同降雨强度下的一系列渗流实验,建立了裂隙隙宽与负压、饱和度与负压、裂隙隙宽与饱和度以及负压与非饱和渗透系数之间的实验关系,给出了各参数间的非线性函数式,这些关系式的确立丰富了裂隙渗流理论,为探明实际工程中裂隙岩体非饱和区的渗透荷载分布特征提供了新的有效方法。
3)  unsaturated seepage flow
非饱和渗流
1.
Experimental study on unsaturated seepage flow in simplified fracture model;
裂隙概化模型的非饱和渗流试验研究
2.
In this paper,the research of unsaturated seepage flow in fractured rock masses at home and abroad is systematically reviewed(here,the fracture mainly means fine or tiny fracture).
综述了国内外裂隙岩体(主要是细、微裂隙岩体)非饱和渗流的研究情况。
3.
With the hypothesis of parallel plate model for local aperture regions, the apertures are generated by using the statistical methods according to a certain aperture distribution, and the numerical simulations are performed for saturated seepage flow and unsaturated seepage flow in the fracture.
基于裂隙局部开度为平行板模型的假定, 按一定分布抽样生成裂隙面上开度随机数, 并分别对单裂隙饱和及非饱和渗流进行了数值模拟。
4)  saturated-unsaturated seepage
饱和-非饱和渗流
1.
Research on simulation of steady saturated-unsaturated seepage based on water-air two-phase flow theory;
基于水气二相流的稳定饱和-非饱和渗流模拟研究
2.
Program development for 3D FEM of coupling saturated-unsaturated seepage, temperature and stress;
考虑饱和-非饱和渗流、温度和应力耦合的三维有限元程序研制
3.
Development of the 3D finite element method of strength reduction considering the coupling of saturated-unsaturated seepage and stress;
考虑饱和-非饱和渗流场和应力场耦合的三维强度折减有限元程序研制
5)  unsaturated-saturated seepage
非饱和-饱和渗流
1.
Then unsaturated-saturated seepage analyses were carried out to investigate the movement of water in a landfill element,in which the existence of intermediate covers and the efficiency .
结合苏州七子山垃圾填埋场的工程项目,通过室内试验量测垃圾饱和渗透系数和土-水特征曲线,推导其渗透性函数,考虑存在中间覆盖层和截洪沟失效的情况,通过对垃圾填埋体中非饱和-饱和渗流分析,研究填埋单元内的水分运移规律以及中间覆盖层上局部滞水的形成规律。
6)  saturated-unsaturated seepage
饱和非饱和渗流
1.
Numerical analysis of saturated-unsaturated seepage problem of rock slope under rainfall infiltration;
降雨入渗条件下边坡岩体饱和非饱和渗流计算
补充资料:非饱水土渗流
      在孔隙未被水分充满(未达到饱和)的土壤中水的流动。农田土壤中水分的运动,在灌溉、排水、降雨和蒸发影响下地下水面以上土层(包气带)中水分的运动都属于非饱水土中的渗流。
  
  土壤水在势能的作用下流动。非饱和土壤水的势能包括重力势、压力势(土壤负压或称毛管张力)等。垂直一维非饱水土壤渗流速度v,根据达西渗流定律可写成:
  
  
  式中嗞为非饱水土中的总位势(以水头计);z为自基准面向上的垂直坐标值;h为土壤水的压力水头(负压);K(θ)为非饱水土壤的渗透系数(或称水力传导度),是含水率θ的函数。
  
  根据质量守恒原则,可求得以θ和h为变量的两个一维垂向渗流微分方程:
  
  
      (1)
  
  
     (2)式中为非饱水土的扩散度;为非饱水土的容水度;t为时间变量。
  
  对少数具有简单初始和边界条件的问题,通过求解式(1)和(2),可得解析解。但对于复杂的非饱水土中渗流问题需通过数值计算法求解,从而可预测分析土壤中含水率分布和变化情况。
  
  

参考书目
   J. Bear, Dynamics of Fluids in Porous Media, American Elsevier, New York,1972.
  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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