| 1. | On parameters idntification of layered foundation - silo interaction system
贮仓结构相互作用系统的参数识别 |
| 2. | An approximate calculation of bearing capacity of two - layer foundation second
双层地基承载力的一种近似算法二 |
| 3. | Methods for estimating bearing capacity of layered foundations in harbor engineering
港口工程中非均质层状地基承载力计算方法 |
| 4. | Theory and spplication on base pile with varying rigid in layers foundation under action of horizontal loads
多层地基中横向承载变刚度桩的计算与实践 |
| 5. | Study on surface contact stress distribution properties for multi - layered foundation during dynamic consolidation
强夯作用下成层地基的表面接触应力分布特征 |
| 6. | By adopting the layering foundation model , the contact element and the substructure method , the three - dimensional finite element analysis for soil , pile - raft foundation and frame - tube applied by the vertical loads is established
地基土采用分层地基模型，桩土界面采用接触单元处理，上部结构采用子结构法处理。 |
| 7. | In the analysis of this paper , tall frame is divided into space beam element , layered foundation is divided into finite layer , and the stiffness of a single pile is determined by q - s curve
本文分析时将空间框架离散为空间杆件单元，将成层地基离散为有限层元，采用q - s曲线确定单桩刚度，建立了考虑空间框架与桩基共同作用的有限元和有限层模型。 |
| 8. | The american culture scientist , newly the theory of cultural evolution representative personage white in the theory of cultural layer foundation division the cultural three subsystems namely technical system social system and ideology system
美国文化学家、新进化学派代表人物怀特在文化层的基础上把文化划分为三个子系统，即技术系统、社会系统和思想意识系统。 |
| 9. | Thus , the piping - induced failure of two - layer foundation was verified as that ： mass flow firstly appears in the upper weakly permeable layer , and then underground erosion and scouring gradually occur from downstream to upstream between the serviously and weakly permeable layers
从而验证了二元结构堤基的渗透破坏模式为：首先在上层弱透水层中发生流土，然后在强、弱透水层之间发生自下游向上游的逐步潜蚀冲刷。 |
| 10. | Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f . e . m . model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model . from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation
针对以上问题本文做了以下一些工作并得到若干结论： ( 1 )提出了“复合双层地基”的概念，并通过工程实例证明此概念的提出有其合理性和必要性； ( 2 )用弹性地基梁理论证实了复合双层地基确有应力扩散效应，且扩散效应随上覆硬层厚度、刚度的增加而增大，随下卧层基床系数的增大而减小； ( 3 )建立了非线弹性、各向异性有限元模型，并以此为基础分析了复合双层地基的应力扩散效应，得到附加应力系数随加固层厚度、宽度、刚度的增加而增大的结论； ( 4 )推导了可用于常规计算的复合双层地基应力扩散系数公式，并代入工程实例进行了验证。 |
