| 1. | Spline based semi - analytical procedure for dynamic flexibility of visco - elastic non - homogeneous foundation 粘弹性非均质地基动力柔度的样条半解析解法 |
| 2. | With the program , the paper analysis the uniform soil condition and the layered soil condition separately 利用该程序,本文对浅基础的地基分均质地基和层状地基两类情况分别进行了分析。 |
| 3. | The numerical methods developed in this thesis are employed to conduct both limit analysis and shakedown analysis for non - homogeneous foundations and offshore platform foundations . comparative studies are performed 将本文所提出的数值方法应用到岩土工程领域,对非均质地基进行了极限与安定性分析。 |
| 4. | To uniform soil condition , the p - ~ s settlement curve of the center point at the bottom of the shallow " foundation and the different depth of the soil plastic zone in different load grade and the ultimate bearing capacity of the foundation are analyzed 对均质地基情况,分析了基底中心点的p s沉降曲线、不同等级荷载下塑性区开展的不同深度情况及地基的极限承载力。 |
| 5. | Based on the analytical solution , the influence of all relevant parameters on the settlement behavior of single pile was analyzed and discussed . 2 . the time effect of the settlement of single pile in layered soil was studied 采用分离变量法求解得到了均质地基中受静力荷载作用的单桩桩顶沉降与时间关系的解析解,并据此分析讨论了各种参数的变化对单桩的沉降与时间关系的影响。 |
| 6. | ( 3 ) according to the principle of equality of consolidation degree , an equivalent method of converting vertical drain to layered soil was proposed , and we can use plane strain fem to analyze ground with vertical drain via translating it to layered soil foundation ( 3 )根据固结度等效的原则,提出了与单井固结理论等效的成层均质地基等效渗透系数计算方法,从而将复杂砂井地基转化为无砂井成层地基,可用于平面应变有限元简化计算。 |
| 7. | Novak layer method is introduced to obtain the vertical dynamic impedances of both an end - bearing pile and a floating pile in a homogenous stratum . and the vertical dynamic impedances of single pile are analyzed in homogenous elastic soil , inhomogenous viscoelastic soil homogenous viscoelastic soil . at the same time , the factors to influence the impedances of single pile are examined 本论文采用novak薄层法,推导了在均质地基中,端承单桩和摩擦单桩的动阻抗;并全面分析和对比了均质弹性、均质粘弹性和非均质粘弹性地基模型中的单桩的动力阻抗,考察了各种因素对单桩动力阻抗的影响程度。 |
| 8. | The time effect of the settlement of single pile in a homogeneous soil was investigated . the interface between pile and soil was simulated by voigt model , and the analytical relationship of settlement and time of single pile in homogeneous soil was obtained by the method of separating variables 均质地基中单桩沉降的时间效应研究将桩周土对桩的作用简化为voigt体模型,建立了均质地基中考虑土体粘弹性的单桩静力平衡方程,成功地将时间因素与单桩的沉降联系起来。 |
| 9. | Both ultimate bearing capacity and shakedown loads of non - homogeneous foundations are computed . based on numerical results computed for different load modes , limit loads and shakedown loads of non - homogeneous foundation and offshore platform foundations are compared . the ultimate loads and shakedown loads for different combinations of horizontal component and vertical component and moment can con 在竖向载荷与水平载荷共同作用下,研究了地基土体的强度特性与土层分布特征对地基承载力的彤响,对地基的极限载荷与安定戳荷进行了比较分析,为全面、综合地评价非均质地基的稳定性提供了有益的参考。 |
| 10. | Based on the fem analysis and load tests in site , some performances of composite foundation are studied . in this research how the length of pile , the rigidity of pile and area replacement ratio of composite foundation affect the stress in the pile , the siding friction transfer law of pile and the deforming characteristics and bearing capacity of the entire foundation is studied 在进行复合地基性状的研究中,通过建立不同的有限元模型,研究桩长、桩体刚度、面积置换率对均质地基复合地基桩身应力、桩身侧摩阻力传递规律、变形特性和承载力的影响。 |