udec

Stability analysis of jointed rock slope by strength reduction method based on UDEC

基于离散元的强度折减法分析岩质边坡稳定性

Udec modeling of vibration characteristics of jointed rock mass under explosion

爆破荷载作用下岩体振动特征的数值模拟

We analysis the influence the stability of unstable rock fracture water pressure used soft of UDEC .

采用离散元分析软件UDEC对影响危岩体稳定性的裂隙水压进行分析。

UDEC Simulation of Progressive Failure of Rock Slope Under Explosion

爆破荷载作用下边坡渐进破坏模式的UDEC模拟研究

In addition , the progressive failure of layered rock slope under explosion is simulated by UDEC .

此外，本文还利用UDEC模拟了爆破荷载作用下层状岩质边坡的渐进破坏的全过程，并得出了一些有意义的结论。

UDEC simulation results show that the porosity of overburden rock fissure field in goaf and its curve is saddle-shaped .

UDEC模拟结果表明，采空区覆岩裂隙区域孔隙率曲线呈鞍状分布。

The result of model test is almost consistent with the result of UDEC ( The Universal Distinct Element Code ) and the in-situ circumstance .

模型试验研究的结果与现场及离散元数值计算结果基本吻合。

The stability of the jointed rock slopes is analyzed by means of the universal distinct element code ( UDEC ) in which the strength reduction method is included .

将通用离散元UDEC与强度折减法结合，对含多结构面的岩质边坡的稳定性进行了分析。

UDEC simulation of the water-pouring probability in exploiting waterproof coal pillars under the conditions of thick loose bed and ultrathin overlying strata

UDEC模拟厚松散层及超薄覆岩条件下开采防水煤柱覆岩突水可能性

It is concluded that its slope failure is the toppling sliding type and the UDEC analysing model softwares are the powerful tool for investigating the slope failure mechanism and predicting the slope sliding .

一个主要结论为：udec模型分析软件对研究边坡破坏机制并及时作出滑坡预报都是十分有力的工具。

Then , the reinforce project and the stress of the pre-stress cable have been simulated by the UDEC , which have not only good effect but validate the anchorage mechanism in the former chapter .

然后对加固方案和锚索的受力情况进行了模拟分析，不仅加固效果良好，而且也验证了前面章节中锚杆的加固机理。

The seepage theories and methods of the fractured rock mass , basing on the distinct element method are expatiated . UDEC based on the Distinct Element Method is used to simulate the free surface fluid . 3 .

阐述了基于离散单元法的裂隙岩体渗流分析理论与方法，并结合具体实例用离散元分析软件对自由面液体流动开展数值模拟研究，验证了采用UDEC进行裂隙岩体渗流分析的可行性。

Then the modified strength criteria was coded using the built-in language FISH provided by the discrete element Software UDEC and applied to a real project to verified the necessity of correctly selecting strength criteria for joints .

利用离散单元软件UDEC的内置FISH语言编写程序，并用于某工程计算，论述了正确选择节理强度准则的必要性。

Base on the theory of the mining subsidence and with the UDEC numerical simulation calculation software , the paper has a study on how to determine the left and right boundary lines in the simulation research of the strata displacement .

基于开采沉陷理论，采用UDEC数值模拟计算，对岩层移动模拟研究中如何确定模型左右边界范围进行了研究。

By using the function of explicit finite difference in UDEC , the mechanisms of several often used rock burst prevention methods were investigated . The result provided a theoretical basis to the rock burst prevention design in Jinping Auxiliary Tunnel .

利用离散单元程序UDEC的有限差分分析功能，探讨了几种常用岩爆防治方法释放围岩应力的作用机理，其研究成果为锦屏辅助洞岩爆防治提供了理论依据。

From the control angle of roof stability in face area , UDEC program has been used in analysis of the relationship between the roof stability in face area , the working resistance of support and the distance to face under different top coal conditions .

从端面顶板稳定性控制角度出发，应用数值模拟离散元法分析了不同顶煤条件下端面顶板稳定性与支架工作阻力及端面距的关系。

Numerical results presented in the paper indicate that the strength reduction method combined with UDEC is reliable and powerful alternative against traditional limited equilibrium method and that it will be a new approach to obtaining the slip surface and FOS of jointed rock slope .

通过与传统的条分法的结果比较，表明基于UDEC的强度折减法是一种可靠、有效的方法，为复杂节理岩质边坡的滑动面确定与安全系数计算开辟了新的途径。

Suitable for the latest hardware of personal computers , combining a discrete element code UDEC , MATLAB and EXCEL , a new method of comprehensive processing of amplitude of velocity / stress wave for every grid-point / zone-centroid for every zone was proposed .

顺应日益更新的计算机硬件及其外部设施，结合离散元程序UDEC，MATLAB和EX-CEL，提出了一种在UDEC中全面处理各节点或单元中心波幅的数据处理新方法。

Base on the key layer theory and mining subsidence theory of the strata control , with the simulated material simulation test and the FLAC and UDEC numerical simulation calculation , the paper studied how to set the top boundary scope of the model for the strata displacement simulation .

基于岩层控制的关键层理论和开采沉陷理论，采用相似材料模拟试验、FLAC和UDEC数值模拟计算，对岩层移动模拟研究中如何确定模型上边界范围进行了研究。

In this paper , by systematic numerical modeling by the distinct element method with UDEC code , the effect of physical and mechanical properties of rocks including internal friction angle , Youngs modulus , Poissons ratio , and cohesion on stress field in the vicinity of fractures are analyzed .

应用离散元方法模拟研究了断裂两侧岩石的物理力学性质（包括岩石内摩擦角、弹性模量、泊松比、粘聚力等）对其附近地应力场的影响。

Application of UDEC to simulate the injection process in the Bingham type of slurry in the rules discontinuous jointed rock masses by keeping drilling within the specified pressure . ( 5 ) The Jungar small kiln spontaneous combustion in goaf grouting anti-extinguishing slurry diffusion behavior of field-proven .

应用UDEC通过保持钻孔内的指定压力来模拟宾汉姆型浆液在规则不连续节理岩体中的注入过程。（5）准格尔煤田自燃采空区注浆防灭火浆液扩散行为的现场验证。