| 1. | The authors reviewed the achievements of these researches of complex medium including fractured medium , bi - phase medium and random medium , so as to accumulate the basal systemic information for the future
本文对其在裂缝介质、双相介质及随机介质等方面的研究所取得的成果作一综述，以期为今后在该领域的研究积累较为系统的基础资料。 |
| 2. | In this paper , a new heterogeneous anisotropic constitutive model of fractured media was presented , and the properties of elastic waves excited from a two - dimensional ( 2d ) point source propagation in 2d fractured rocks were investigated by the pseudo - spectral method ( psm )
本文提出了一种新的非均匀各向异性随机裂缝介质本构模型，用伪谱法模拟了二维点源产生的弹性波在二维复杂岩石中的传播。 |
| 3. | As to such point , research about the transfer rule of contamination in the fractured medium like rock was done in this dissertation . main achievements are summarized as follows : ( 1 ) the related information and current research development about solute transportation were summarized and studied , then the research target and method were brought up , ( 2 ) different solution was probed into about the mathematical model of solute transport in groundwater
基于此，本文就岩石裂隙介质中污染物质的运移规律作了初步的研究，主要工作有以下几个方面： ( 1 )分析总结了国内外溶质运移方面的相关资料，总结出了现阶段溶质运移方面的研究动态，提出了本文研究的方向及目标。 |
| 4. | On the basis of a united mixed media model including porous medium , equivalent continuum fracture medium and discrete fracture medium , the seepage parameter inverse problem about fracture rock masses is studied systematically and some effective measures are presented to decrease the ill - posed property and improve the reliability of parameter identification . the indirect method widely used in parameter identification fields is applied to solve the seepage parameter inverse problem
在此基础上，本文采用包容多孔介质、多裂隙介质及离散裂隙介质的统一域混合模型，利用目前参数反演领域应用最为广泛的间接法，首先针对裂隙岩体渗流场单场参数反问题进行了深入研究，主要目的是改善参数反问题的适定性以提高参数反演的可靠程度。 |
| 5. | Directed by wave theory of fractured media , the elastic parameters of eda medium are determined in the light of hudson - fractured theory , and christoffel equation gives the formula of the phase velocity of p - wave by which , effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed
本文以裂隙介质的波动理论作指导，根据hudson裂隙理论，求出eda介质的弹性参数。在此基础上，应用christoffel方程求出的地震纵波相速度表达式，探讨了裂缝密度和裂隙方位对代表波场运动学特征的纵波速度和代表波场动力学特征的反射系数的影响。 |
| 6. | Along with the development of society and continuously worsen of environment , water resource protection and utilization had already been paid more and more attention . researches about groundwater resource were unfurled in many countries . but those researches mainly concentrated in the pore medium and less in the fractured medium
随着人类活动的不断扩大以及工农业生产的发展，生态环境的不断恶化，水资源的保护及利用已受到了社会的极大关注，各国都对地下水资源展开了研究，但这些研究主要集中在孔隙介质中进行，而裂隙介质方面研究较少。 |
| 7. | ( 5 ) several group experimental result of solute transport in fractured medium was analysed in different direction . an experience formula of nacl solution was summarized , which changed in different position . the coefficient of advective - dispersive was deduced by means of back analysis based on the experimental results , which suited to solute transport in a single fracture of rock
( 5 )通过裂隙中溶质运移的多组实验结果进行横、纵向的比较分析，总结出了nacl溶液浓度沿程变化的经验公式；结合实验结果针对所推导出的数学模型拟合出适合单裂隙岩体的溶质运移弥散系数。 |
| 8. | This paper addresses the important status of low permeability reservoirs in chinese oil industry and the significance of fractured low permeability reservoir study ; illustrates the delineation standard of low permeability reservoir and enumerates the characteristics of low permeability fractured reservoirs ; introduces classification of the reservoirs and fluid flowing characteristics of different reservoirs ; expatiates fracture study as well as stimulation measures often used for developing low permeability reservoir - hydraulic fracturing ; last expounded at length is the progress in theoretical study of fluid flowing in low permeability fractured media
本文首先阐述了低渗透油藏在我国石油工业中的重要地位以及关于裂缝性低渗透油藏研究的重要意义；说明了对低渗透油藏界限的界定标准，并列举了裂缝性低渗透油藏的特点；介绍了裂缝性低渗透储层的分类，并描述了不同类型储层的流体渗流特征；详细分析了关于低渗透油藏中裂缝的研究，以及开发低渗透油藏常用的增产措施水力压裂技术；最后重点阐述了关于裂缝性低渗介质中渗流理论的研究进展。 |
| 9. | ( 4 ) according to the 2 - d advective - dispersive equation of pore medium and combining the result of experiment , the difference between experiment and calculation was located by macroscopical analysis . a new mathematical model suiting to fractured medium was deduced from revised pore medium model . the correction and practicability were verified by the result of experiment
( 4 )依照孔隙介质二维溶质对流弥散方程，结合实验所取得的成果，进行宏观比较分析，找出实验与计算的差距，然后对孔隙介质模型作进一步的修正，推导出了适合单裂隙岩体二维溶质运移的数学方程，并通过具体的实验结果验证了模型的正确性和实用性。 |
| 10. | In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed . because the equations consist of terms related to advection , diffusion , biochemical as well as the term of exchange betwen the fracture and the porous media , it is very difficult to find their solution . in order to find more efficient method for solving these equations , several numerical methods for the equations without biochemical terms are discussed first . the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media . then , the equation with both advection - diffusion term and biochemical term are discussed . the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations . the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term . numerical simulation results show that good agreement between analytical solution and experiment result is attained
本文讨论了含裂隙介质地下水污染物输运与生物降解非线性方程组数值求解方法.方程含有对流项、扩散项、生长、死亡、吸附、解吸、趋化和孔隙与裂隙介质界面间的交换项的非线性偶合，使算法十分困难.本文讨论了无生化过程时的几种求解方法，数值结果表明：用三次迎风插值法对常见的对流项占优势，且场变量有较大梯度的问题较适用.在讨论有生化反应过程时，利用对流项与生化反应项的特征时间量级估算，给出了求生化过程作用子步的时间步长估算办法.用上述方法所得到的模拟结果与解析解、无化学反应和有化学反应的实测值对比，吻合很好 |
