Through the research on the development character of overthrust fault , we analyzed its sealing mechanism . we also established evaluation standard and method of fault sealing ability through the following two simulation experiment : experiment on the quantitative relationship between property of fracture zone filler and fault sealing ability ; experiment on the deformation character of cream shale . based on these work , we evaluated sealing ability of overthrust faults on several typical structure in kuche depression 本文通过逆掩断层发育特征研究，分析了逆掩断层封闭机理，在断裂带填充物性质与断层封闭性定量关系模拟实验和膏泥岩变形特征模拟实验基础上建立了断层封闭性评价标准及评价方法，以此对库车坳陷几个典型构造上逆掩断层垂向封闭性进行了评价，结果表明现今断层多是封闭的，这是库车塌陷天然气和异常孔隙流体压力得以保存的主要条件。
With a differential accumulation analysis of the fault closeness and the difference of faulted reservoir in beitang depression , it is suggested that ( 1 ) an inactive fault in clastic sequence may mainly restrict hydrocarbon migration ; ( 2 ) undercompacted shales with overpressure can lead to strongly restricting hydrocarbon migration along faults ; ( 3 ) hydrocarbon segregation associated with fault traps more probably takes place in undercompacted zone with abnormal hydropressure 通过黄骅坳陷北塘凹陷断层的封闭性及断层油气藏差异聚集分析，表明断层在活动停止期主要起封闭作用，但在正常压实层序段仍有少量轻组分的烃类沿断层发生运移而引起差异聚集；而在欠压实带，异常高孔隙流体压力使断层在纵向上具有很强的封闭性。
2 ) the dynamic responses of the saturated soil are analyzed respectively when the normal incident waves from bottom boundary are p - waves and sv - waves . the responses of the soil skeleton and the pore fluid are studied , while the influences of different permeability coefficient and the surmounting loads on the dynamic responses of two - phase media are expounded 分别进行了在底边界p波与sv波垂直入射时饱和土的动力响应分析，研究了动力作用下土骨架和孔隙流体的反应，同时阐述了渗透系数和上覆荷载对两相介质动力响应的影响。
The fact that wave velocity in quasi - saturated soil is equal to that of fully saturated soil could not be calculated by effective fluid compressibility or explained by unwell - distributed saturation . we account for this in a new reasonable way which was based on kuster scattering effect analysis ( 8 )根据kuster散射波理论，计算了饱和度大于85的准饱和土体的弹性波速，其结果与试验非常吻合；但是，通常所用的等效孔隙流体压缩系数的方法所计算的结果与实验结果差别很大，对此，笔者给予了一定的解释。
Research shows : change of temperature & pressure of sand rock results in prominent change of seismic p and s wave velocity and dynamic & static modul and seismic attenuation of sand rock . change of pore liquid character and saturation results in change of seismic p and s wave velocity and attenuation of sand rock 研究表明：岩石所处的温度压力条件的变化将导致纵横波速度、动弹参数和衰减的显著变化：孔隙流体性质(含水或油、气)及饱和度的变化将引起纵、横波速度、衰减的明显变化。
Based on the biot ' s effective stress theory , and with the method of numerical value experiment , the thesis has studied the microcosmic mechanism of affecting the effective stress coefficient , i . e the microcosmic mechanism of effective stress law by using the elasticity distortion ' s simulating software which is compiled with the method of finite elements . it has been done from the two aspects of affecting the elasticity distortion of rock comprising the insides causation which is the existing configuration of hole and cranny in rock and the outsides causation include the outside pressure and the liquid pressure inside the rock 本文基于比奥的有效应力原理，利用有限单元法的弹性变形模拟软件，通过数值实验的方法，从影响岩石变形的内、外两方面的因素?即内在孔隙裂隙赋存形态和其所受的外载荷及孔隙流体压力出发，研究了影响有效应力系数变化的细观机理，即有效应力规律的细观机理。
The mostly content in this paper include the law of the influence upon the effective stress coefficient worked by the holes configuration which comprise the holes rate and the hole distributing , and the law of the influence upon the effective stress coefficient worked by the cracks configuration in rock which comprise the amount of cracks and the cracks distributing . by numerical value experiment , the variety laws of the effective stress coefficient worked by the cracks distributing , by the fractal dimension and the initial value have been work out . by referring to the formerly physical experiment datum and conclusion , the thesis has studied the influence upon the effective stress coefficient worked by the outside pressure and the liquid press inside rock and sum - up the variety law of the effective stress coefficient with the outside pressure and the liquid press 本文的主要内容包括：岩体孔隙裂隙结构对有效应力系数的影响规律，即：一是孔隙率大小及分布形态对有效应力系数的影响规律，二是裂隙的条数和分布形态对有效应力系数的影响规律，并得出了裂隙的分形参数，即：分形维数和裂隙初值的变化对有效应力系数的影响的相关规律，同时也搞清了裂隙分布形态对有效应力系数的影响规律；参照已有的物理试验结果，分别研究了岩石所受的围压和孔隙流体压力的变化对有效应力系数造成的影响，从细观的角度揭示了有效应力系数随二者的变化规律。
And the explicit finite difference method , the combining method of the central difference method and newmark s constant average acceleration method , and the transmitting boundary are used . by comparing the acceleration determined by the several methods of the displacements or velocities , a computing method of acceleration employed the one side difference of velocity is more practicality in this research . corresponding to normal incidence of the body waves , p waves or svwaves , and rayleigh surface waves , two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media 以土力学模型为基础，利用以土骨架和孔隙流体的四个位移为基本未知量的数值方法去模拟二维饱水介质中的地震波传播，采用了显式差分方法(中心差分法和newmark常平均加速度法结合)和透射边界，通过比较利用几种差分格式求解的加速度结果，发现一种用速度单边差分求解加速度的方法在本文研究中较为实用，分别编制了体波( p波或sv波) 、 rayleigh面波输入时求解两相介质动力响应的两个二维数值分析程序。
