详细介绍基于连续介质的离散元法的特点；
The characteristics of the continuum-based discrete element method are introduced in detail.
当节理正交时，离散元与有限元的计算结果一致。
The results of DEM agree well with the one of FEM when joints are crosscut each other.
采用多刚体离散元方法对长管线系统进行计算分析。
The multi-rigid-body discrete element method was proposed for the analysis of deep-ocean mining pipe system.
采用三维离散元程序研究了岩体中爆炸波的传播过程。
The three-dimensional discrete component process is applied to study the propagation course of explosive wave in rock.
采用三维离散元方法，模拟含节理岩块的单轴受压试验。
Discrete element method (DEM) based numerical simulation is conducted for the jointed rock under uniaxial press loading.
最后，介绍了离散元法的计算控制及滑动与失稳的判据。
In the end, the criteria of computing control, slide and failure in DEM are introduced.
将二维随机节理网络运用于岩体地下洞室的离散元计算模型。
Use two dimension network crack into a tunnel distinct element model.
在中心区域采用离散元分析，其周围区域采用有限差分法分析。
The DEM is used in the focus zone, and the finite difference method is used in the surrounding zone.
同时，对离散元方法的应用，特别是参数选取进行了有益的探讨。
Meanwhile a new way to determine the contacting parameters for discrete element analysis is presented.
利用离散元方法对颗粒在振动给料机中的运动过程进行了数值研究。
The moving process of solid particles in a vibrating feeder is investigated by means of Discrete Element Method.
在室内模型试验的基础上对加筋路堤进行了颗粒流离散元模拟分析。
The PFC numerical simulations (Discrete Element Method) were carried out on the base of the results of model test.
着重介绍了非连续介质模型中的离散元法(dem)：硬球模型和软球模型。
The discrete element method (DEM) is introduced, which includes hard sphere model and soft sphere model.
采用离散元方法，对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
本文仅从力学方面用离散元软件udec分析了洞室围岩的单层衬砌支护特性。
This paper analyzes the surrounding rock characteristics of single shell lining only from the mechanical mechanism aspects using the discrete element software of UDEC.
而离散元法正是充分考虑到岩体结构的不连续性，适用于解决节理岩石力学问题。
It's known that the discrete element method well considers the discontinuity character of rock mass, and can be used to analyze the joint rock mass.
工程中的力学问题，主要用数值解析方法求解，包括有限元、边界元、离散元等等。
The mechanical problems in the engineering programs were mostly solved by numerical methods, such as finite element method, boundary method, distinct element method, and so on.
以节理岩体等效刚度的概念为基础，讨论了离散元刚性块体模型中节理刚度的选取问题。
Based on the concept of equivalent stiffness of rock masses, the estimation of joint stiffness in distinct element model of stiff blocks is discussed.
利用J 2流动理论各向同性硬化原理，结合离散元方法，建立筒型基础土体本构关系。
The constitutive relationship of bucket foundation was analyzed by the principle of J2 flow theory and isotropic based on a deformable distinct element method.
提出了采用基于颗粒接触力学原理的离散元法对耕作土壤动力学问题进行数值模拟的新思路。
A new simulation strategy using the Discrete Element Method (DEM) based on spherical particle contact mechanics to tillage soil dynamics was proposed.
介绍了离散元（DEM）方法的基本原理、颗粒运动控制方程和颗粒相互作用力的数学模型。
The basic principles of DEM(discrete element model), and the equations of particle motion and models of particle particle interaction are introduced.
开发了离散元框架内的网格实体模型（SLM），模拟拆除爆破中结构倒塌的复杂动力学过程。
The SLM is developed to simulate the complicate dynamic process for structural collapse of demolishing blast in frame of DEM(Discrete Element Method).
应用联合有限-离散元法结合弥散式旋转裂缝模型分析了地震作用下混凝土重力坝动力破坏过程。
This paper uses the combined finite-discrete element method with smeared rotating crack model to analyze the seismic rupture process simulation of concrete gravity dam under the action of earthquake.
本文应用模型实验、图像分析、离散元模拟等方法，对上覆岩层采动裂隙分布特征进行了研究。
With analog testing, graphical analysis, discrete element calculation method, the features of mining caused fractures of overlaying strata is studied.
通过对几种离散元方法接触关系的比较，讨论了在不同的计算模型中结构面刚度所代表的物理意义。
By comparison of several different DEM contact relationships, the physical meaning of joint stiffness in different computational models is discussed.
本文针对小应变、大位移和大转动的块体系统建立了三维模态变形体离散元数值模型(3mdem)。
For block systems with small strain, finite displacement and finite rotation, a 3-dimensional mode distinct element method (3mdem) was presented.
采用离散元方法中的动态松驰技术，在无须组装整体渗透矩阵的情况下求解裂隙网格各结点的水头值。
The dynamic relaxation technique in discrete element method is introduced to solve the permeability field without assembling the global matrix.
以某地铁标段施工的土压平衡盾构机为研究对象，建立了盾构密封舱土压力系统离散元仿真的几何模型；
Taking the shield machine tunneling in a subway section as the research object, the DEM geometrical model for analyzing the chamber pressure of the shield machine is established.
将神经网络、遗传算法、三轴实验和离散元数值模拟相结合，用于改性砂土等效离散元接触模型参数反演。
The inversion method combining the genetic neural network and the discrete element simulation of triaxial tests is proposed for determining the contact model parameters of the conditioned soil.
最后，利用人工神经网络原理，对其支护参数进行了研究，并提出了利用离散元来确定二次支护时间的方法。
Lastly, timbering parameter is studied by utilizing Artificial NeuralNetwork (ANN), and put forward using Discrete Element Method (DEM) to confirm 2nd support time.
最后，利用人工神经网络原理，对其支护参数进行了研究，并提出了利用离散元来确定二次支护时间的方法。
Lastly, timbering parameter is studied by utilizing Artificial NeuralNetwork (ANN), and put forward using Discrete Element Method (DEM) to confirm 2nd support time.
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