| 1. | Compared with the condition of the two - dimensional stress state , the influence of all the parameters to the results of the formulas of the critical edge load and critical load in the condition of the three - dimensional stress state is analyzed in the end of this paper 并通过实际的算例详细的分析了临塑荷载、临界荷载中各个参数在二维应力状态下和三维应力状态下对计算结果进行了影响程度分析。 |
| 2. | The formulas of the critical edge load and critical load are expanded from the two - dimensional stress state to the three - dimensional stress state by using smp ( matsuoka - nakai ) strength criterion to substitute for mohr - coulomb strength criterion , and the new formulas are proposed in chapter three 本文将临塑荷载、临界荷载计算公式扩展到三维应力状态,应用smp (松岗?中井)强度准则替代莫尔?库仑强度准则,推导了三维应力状态下的临塑荷载、临界荷载计算公式。 |
| 3. | The programme can solve two - dimensional stresses , strains and axial symmetry problems with different yield criteria . a satisfying solution has been put forward to the contact boundary between reinforcements and soil . the special problem of two contact plane elements at the joint between plate and strip has been solved 该程序能同时考虑平面应力、平面应变和轴对称问题,并能运用不同的屈服准则,使其更具有通用性和适用性,成功地解决了筋材与土介质界面的接触问题,较好地解决了墙面板与筋带连接处出现两个接触面单元的特殊问题。 |
| 4. | The formulas of the critical edge load and the critical load are wildly used in the definition of the bearing capacity in practice . for the ignorance of the middle principal stress , the results of the formulas of the critical edge load and critical load which are based on the mohr - coulomb strength criterion in the two - dimensional stress state tend to be conservative 临塑荷载、临界荷载计算公式一直是工程实际中计算地基承载力的理论基础,但是基于二维应力状态下莫尔?库仑强度准则的临塑荷载、临界荷载公式因为没有考虑到中主应力在强度上的有利作用而使计算结果偏于保守。 |
| 5. | The rankine soil pressure theory is always accepted as the foundation of calculations of the soil pressure in practice . but as we know , the ignorance of the middle principal stress and the utility of mohr - coulomb strength criterion in the two - dimensional stress state make a blemish that the active soil pressure is bigger and the passive soil pressure is litter than the real 朗肯土压力计算公式一直是工程实际土压力计算的理论基础,但是朗肯土压力计算公式在推导过程中忽略了中主应力的影响,仍然应用二维应力状态下的莫尔?库仑强度准则,致使计算出的主动土压力偏大而被动土压力偏小。 |
| 6. | In this program , the material nonlinearity and geometry nonlinearity are taken into account ; what is more , it can calculate two - dimensional stress , strain and axial symmetry problems of foundation , tunnel , etc . after contrasting tri - axial experiment data with the computational result of the program , we can see that the program works well 该程序通过合适的数据读入语句,可以利用目前使用较为广泛的通用程序中的可视化窗口进行前处理,读入其生成的数据文件,使得数据输入大为直观和简化。 |