The primary contents are as follows : ( 1 ) based on the fundamental seepage physical equation , the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced , in which the pressure head is the fundamental unknown quantity . a calculated model for analysis of saturated - unsaturated seepage field with the boundary condition of rain infiltration also has been developed 总体说来，本文主要从以下几个方面开展了研究： ( 1 )由基本渗流物理方程出发，以压力水头为基本未知量推导多孔介质三维饱和?非饱和渗流微分方程，在此基础上分析了边坡在有降雨入渗条件下渗流的定解条件和计算模型。
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。
This paper evaluates the underground water resources and its safe levels of miming , and then studies the availability of molepipe drainage , a kind of practical underground water regulation technique . starting with the elevation of underground water resources and a safe level of mining through variable system theory , this paper analyzes the conditions of underground water resources based on the well - studied determination method of determining the two hydrographical coefficients : rainfall infiltration replenishment rate and irrigation replenishment rate . then considering irrigation , rainfall , drainage and other related factors , a mathematical model is set up for the calculation of underground water storage , exploitation on water regulation 论文从灌区的地下水资源及其可开采量评价分析方面入手，在对两个主要的水文地质参数即降雨入渗补给系数、灌溉入渗补给系数确定方法研究的基础上，对灌区的地下水资源状况进行分析，依据灌区的灌溉、降雨、排水条件及各种现状因素，建立了地下水资源量计算的数学模型，西安理工大学工程硕士专业学位论文计算得到青铜峡灌区地下水的最大补给量和可开采量;另外对在开发利用地下水资源过程中的地下水位的调控进行了初步的探讨，在银北灌区开展对暗管排水调控地下水位的试验研究。
Using the calibrated model , the effect of diversified factors in the variation of groundwater is analyzed . the result shows that , the change of groundwater level has close relation with the rainfall . in the meanwhile , with the built of rubber dam , it is also been one of an important supply source of the groundwater storage 模拟结果表明，地下水位的变化与当地降雨量的大小及时程分配，地下水开采量的大小及时程分配和河流来水情况密切相关，其中，降雨入渗、河流渗漏对地下水补给起到决定性作用，同时，随着橡胶坝的修建，也使其成为地下水库的一个重要补给来源。
The numerical models are applied to the analysis of water - air transmission , deformation and strength variation in an expansive soils slope during infiltration . the results of numerical simulation quantificational describe the influence of fissures position , fissures growth extent on expansive soils slope infiltration process , fissures healing process during infiltration as well as the variation process of soils strength and slope stability 程序结果定量描述了不同裂隙分布、不同裂隙发育程度对膨胀土边坡降雨入渗过程的影响，定量描述了裂隙在降雨入渗时的愈合过程，以及边坡土体强度、边坡稳定性随降雨入渗变化的过程。
A new method is proposed in this paper for analysis of the stability of slope in unsaturated soil affected by rain infiltration based on catastrophe theory , take into account that rainfall infiltration is one of the major factor causing the slope failure of unsaturated soil and the failure is usually abrupt 降雨入渗往往是非饱和土基坑边坡失稳的主要诱发因素之一，同时边坡失稳又具有突发性。本文基于突变理论，提出了考虑降雨入渗影响的非饱和土基坑边坡稳定性分析方法。
