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- slope failure criterion 临界失稳状态判据
- The strength reduction FEM, taking the run-through of plastic zone as unstability criterion, can obtain actual stress distribution and simulate the process of slope failure. 以塑性区贯通为失稳判据的强度折减有限元法,可以很好的求解真实的应力分布和模拟软土边坡破坏过程,是一种值得提倡的方法。
- The failure criterion of asphalt concrete was not in good agree with the Mohr-Coulomb criterion. 另外,沥青混凝土的破坏准则也并非符合莫尔-库仑破坏准则。
- The economic benefits gained in this way can be negated by a major slope failure. 以这种方式得到的经济利益,可能被一次大的边坡破坏所抵消。
- Rainfall is the most important cause of slope failures. 摘要降雨是导致斜坡破坏的主要原因。
- In recent years, highway slope failure has been widely studied by geotechnical engineers. 摘要近年来,公路边坡的破坏已陆续引起许多字家学者及工程师广泛的注意。
- According to Mohr-Coulomb failure criterion, the axial stress at failure in rock-soil triaxial tests is in linear relationship with the lateral stress. 根据莫尔-库仑破坏准则,岩土三轴试验的轴向破坏应力与围压之间呈线性关系。
- A new failure criterion and elastic\|plastic constitutive relation for concrete under biaxial stresses is discussed in this paper. 讨论了混凝土在双向应力作用下的破坏准则和弹塑性本构关系。
- An extended Mohr-Coulomb failure criterion is used to allow for shear strength variations as a result of changes in matric suction. 二是研究雨水入渗引发滑坡的物理过程并建立定量的分析模型,然后利用这种分析模型进行参数研究。
- In the soil body, the higher seepage force or the higher water level induced slope failure with the lower steepness of failure surfaces. 2. 由试验获得初步结果如下:1.;土体所受渗流力愈大或土体内水位愈高时,土体内破坏面坡度愈小。
- The slope failure on reservoir banks is concerned with the change of mechanical condition and the change of hydro-geological condition. 摘要库岸边坡的失稳除了与坡体本身的工程地质条件有关外,还与水文地质条件有关;
- The adopted failure criterion was a composite Mohr-Coulomb criterion with tension cut-off and the post-peak constitutive relation of rock was linear strain-softening. 计算中采用了莫尔-库仑与拉破坏复合的破坏准则,峰后岩石本构关系为线性应变软化。
- Thirdly, through analysed the mechanism of the prestressed cable in prevent shale slope failure, design of prestressed cable is optimized. 最后,通过分析预应力锚索防治岩质边坡的机理,对预锚设计计算进行了优化。
- First, the changing laws of cyclic strength, cyclic failure criterion and cyclic accumulate deformation are studied under different testing stress states. 主要的研究工作有以下几个方面:首先在不同试验应力状态下,研究饱和软粘土循环强度、循环破坏准则以及循环累积变形的变化规律。
- Bank recession is a very complicated course,which consist of bank slope failure under seris of conditions and abrasion actions. 由于库岸的再造是一个多种地质作用下的综合结果,主要表现为各种工况下的岸坡稳定性问题和河流水动力、风浪作用下磨蚀作用两个方面。
- The influences of microscopic parameters on slope failure's forms of sandy slope and clay slope are analyzed respectively by PFC numerical simulation. 运用PFC(颗粒流)程序对砂性土坡和黏性土坡分别进行数值模拟,分析细观参数对土坡破坏型式的影响。
- The failure criterion is a composite Mohr-Coulomb criterion with tension cut-off.Beyond the peak stress, the linear strain-softening constitutive relation is adopted. 峰值强度后的本构模型取为莫尔库仑剪破坏与拉破坏复合的应变软化模型。
- The failure criterion of original procedures in ADINA is modified by comparing the computation of a simple model to verify the feasibility of the user-defined materials in ADINA. 摘要通过一简单模型的计算比较,更改了ADINA原程序中的屈服凖则,验证了ADINA用户自定义材料的可行性。
- The elasto-plastic dynamic analysis methods, theoretical models of structures and failure criterion of reinforced concrete structures under earthquake are reviewed. 摘要综述结构弹塑性动力响应分析的方法、理论模型,以及地震作用下钢筋混凝土结构破坏准则。
- It shows that the mechanism of progressive rock slope failure could be discovered in both appearance and essence by combining physical modelling with numerical modelling of FLAC. 研究表明,只有将物理模拟和FLAC数值模拟相结合,才能既从表象上又从本质上揭示出边坡渐进破坏的机理。