| 1. | In this thesis , one - dimensional consolidation theory of saturated soil considering the effect of stress history is studied in detail
本文在前人工作的基础上对考虑应力历史影响的单层饱和土地基一维固结理论进行了较详细和深入的研究。 |
| 2. | Using dynamic load that applied by the simulation above , the dynamic analysis and lighten - weight optimization of spider were done . getting stress history supplied testing data for its service life analysis
利用刚柔耦合仿真得到的动载荷对十字轴进行了动力学分析和优化减重,并提取了十字轴的应力时间历程曲线,为十字轴的疲劳寿命分析提供了有效的试验数据。 |
| 3. | Although the stress history of soil has great influence on its compressibility and consolidation behavior , the one - dimensional consolidation theory of terzaghi ' s so far widely used cannot take consideration of the effect of stress history
虽然应力历史对土的压缩和固结性状有很大影响，但目前仍广泛应用的太沙基( terzaghi )一维固结理论并不能考虑应力历史的影响。 |
| 4. | Finally , by using the two computer codes , a great amount of computation is made through typical numerical examples , and the behavior of one - dimensional linear consolidation and the one of nonlinear consolidation with effect of stress history of soil are illustrated
最后，通过典型的算例，利用上述两个程序进行了大量的计算分析，揭示了考虑应力历史的饱和土一维线性固结和一维非线性固结性状。 |
| 5. | Because there are many factors affecting the properties of soft soil , the paper considers several following main factors : stress history , change of additional stress , lateral deformation and loading style and speed . the 3 - d settlement theory is established
因此笔者认为本文在计算软土沉降时，考虑软土应力历史、附加应力的变化、侧向变形及加载方式与加载速率等几个主要因素是有一定的可行性的。 |
| 6. | Firstly , based on semi - analytical method , the computer code odlcaos for linear consolidation of saturated soil and odncaos for nonlinear consolidation of saturated soil are developed by fortran programming considering the effect of stress history of soil
首先，通过半解析法，采用fortran语言分别编制了求解考虑应力历史影响的单层饱和土地基一维线性固结和一维非线性固结问题的计算程序odlcaos和odncaos 。 |
| 7. | It has been shown that once the effect of stress history is taken into account , the consolidation behavior of soil differs greatly from that described by terzaghi ' s theory , no matter what kind of model is adopted for soil in a consolidation analysis , linear or nonlinear
本文的工作表明：考虑应力历史影响后，无论是采用线性模型还是采用非线性模型，土的固结形状都与传统的太沙基( terzaghi )固结理论所描述的有很大的差别。 |
| 8. | ( 4 ) research on considering stress history and lateral deformation in 1 - d method for embankment settlement calculation . for av e ~ p method , the modification coefficient m , from influence of soil stress history is put forward . then , aimed at the e ~ lgp method and so on , by lots of nonlinear fem calculation , the different settlement revised formulas m2 are given for uniform and non - uniform roadbed cases
针对以a _ v 、 e p法等，提出了可考虑土体应力历史影响的修正系数m _ 1式子；接着，针对e - lgp法或进行了应力历史影响修正后的a _ v 、 e p等，通过大量非线性有限元计算，分别给出均质路基和非均质路基的考虑土体侧向变形影响的沉降修正系数m _ 2式子。 |
| 9. | Then the judging method is proposed , and the proposed method can consider the stress history and viscosity shear strength of soft soil . in this paper , a fem program dpfbm1 . 0 ( double plastic foundation beam method ( version 1 . 0 ) ) is established . with this program , the influence of some parameters on foundation excavation is fully studied , the parameters include : compression modulus , cohesive strength , angle of internal ficiction , effective angle of internal friction , the embedded length of the wall and building load
针对当前国内外弹性地基梁法存在的缺陷，基于对软土流变性的研究，采取了剪应力判断弹塑性状态，以改进和完善基坑工程弹性地基梁法，推导了弹性状态下地基反力系数的近似解，提出了采用剪应力组合判断土弹簧弹塑性状态的方法，编制了相应的弹塑性共同变形法分析程序dpfbm1 . 0 ( doubleplasticfoundationbeammethod ( version1 . 0 ) ) ，并采用该程序分析了压缩模量、粘聚力、内摩擦角等参数变化对基坑工程的影响。 |
| 10. | Integration of these two sides could let the results of layerwise summation method ( lsm ) be more accuracy , which can consider not only soil stress history but also soil lateral deformation and soil nonlinear properties even . ( 5 ) research on the application of meshless method for embankment settlement calculation
综合这两个方面，单向分层综合法的计算结果趋于更准确，其不但能考虑应力历史外，而且能计入土体侧向变形甚至土体非线性特性； ( 5 )路堤沉降计算无单元法应用研究。 |
