地基板

In this paper, with polygon line hypothesis of τ-u relationship of horizontal restrained condition of foundation, and winker hypothesis of vertical restrained condition of foundation, a new analytical method to calculate thermal stress of mass concrete structure on foundation with biconditional restriction is presented.

1概 述在现有的地基上砼板温度应力的计算方法中，多考虑地基的单向非刚性约束及假定板全截面均匀受力进行有关的推导与分析。

During design of pile raft foundation, reacting force raft board bottom is very important,and it not only suffers the stiffness influence of upper structure,and the degree of solidifying that still suffers the constantly change of base soil along with the increase of time reaches and the influence that time efficiency of base stiffness.

桩 -筏基础设计时，筏板底部的地基反力的确定是十分关键的，它不仅受到上部结构的刚度影响，还受到地基土的固结度随着时间的增长而不断变化及地基刚度的时效性等的影响。设计时其计算模型的建立又和桩-筏的刚度有关。根据地基土在桩-筏基础的作用下的实际受力状况，结合工程实例，提出桩-筏基础设计时简化计算的 3种模型及 3种型使用时的注意事项

Finally, based on the fundamental solutions of Biots consolidation of transversely isotropic saturated multi-layered soils, the Fredholm integral equation of second kind for the interaction between transversely isotropic saturated multi-layered soils and rectangular piles is established, the relevant numerical analysis is also carried out.

最后，基于横观各向同性层状饱和地基Biot固结问题的基本解答，建立了横观各向同性层状饱和地基与方形单桩、群桩共同作用问题的第二类Fredholm积分方程，并进行了数值分析与计算；通过将矩形刚性基础基底划分成若干个大小相等的矩形网格，用矩形均布荷载表示网格的基底反力，并利用已获得的横观各向同性层状饱和地基Biot固结问题的基本解来求解每个矩形网格的柔度系数，然后根据刚性基础与层状饱和地基的接触条件和其本身的静力平衡条件，求解分析了横观各向同性层状饱和地基与刚性矩形板的共同作用问题。

With the reference of characteristic and requirements of soil static pre-loading,the groundsill was statically preloaded after- raft foundation work.

通过借鉴土体预压法的特点和要求对筏板基础施工后的地基进行静载荷预压，在确保筏板基础安全稳定的同时，固化了土体，有效地消除了地基基础在上部荷载作用下的过大变形，其工程经验具有一定的参考价值。

Based on Hamilton variation principle, the equations of motion for the moderately thick rectangular plate with transverse surface penetrating crack on two-parameter foundation are established.

基于Hamilton变分原理，考虑板的横向剪切变形和地基耦合效应，建立了双参数地基上含横向表面贯通裂纹的中厚矩形板的运动控制方程。

Simulation results verify that insulated board can effectively protect the heat from transferring into the foundations, and the frozen table is always around the lower bottom of the boards; the position of the frozen table with insulated boards is higher than that of without; the embank- ment formation has a better effect on the center of embankment, the shoulder and toe of the roads than others; after consideration of the construction effect, the best lay out of the insulated boards is higher than the position of natural ground surface to 0.3-0.6 m; this formation of the embankments is the right effective constructer to be used in the permafrost on the Qinghai-Tibet railway.

通过数值模拟可知：保温板能够有效地阻止热量由路基面向下传入地基中，使0℃等温线始终在保温板底层；复合路基多年冻土上限的位置要比无保温板时的高；该结构形式对路基中心、路肩和坡脚下的多年冻土上限抬升的综合效果更好；考虑施工条件后，复合路基在保温板铺设距离天然地面之上0.3~0.6 m对于路基稳定性最为有利；该路基结构形式为青藏铁路多年冻土区路基的理想结构形式，有利于克服全球变暖的影响。

FEMOL is systematically applied to various moving boundary problems, including: membranes contact with rigid foundation, shape optimization of cross-sections of elastic torsional bar, seepage through a dam with a free surface, Mindlin-Reissner plates contact with rigid foundation, free Mindlin-Reissner plates on tensionless

三、将有限元线法分析推广应用到了一系列的动边界问题中，包括：薄膜接触问题，弹性扭转杆的截面优化问题，自由液面的稳定渗流问题，中厚板理论与刚性地基的接触问题，无拉力Winkler地基上自由中厚板问题，理想弹塑性扭转问题，理想弹塑性Ⅲ型裂纹问题。

By using of on the large-scale test flat and giving the control of ground subsidence curves, the results of large-scale tests of two different abutments (gravity type and cross brace type), which were treated with Geocell wedged-shaped flexible slab, were analyzed. The adaptability to ground subsidence and active property of Geocell Wedged-shaped Flexible Slab were achieved.

首次利用大比尺模型试验平台，结合给出的地基沉降控制曲线，对砂砾填料下土工格室楔形柔性搭板处治两种不同桥台类型之路桥过渡段的大比尺模型试验结果进行了对比研究，对两种桥台类型中土工格室楔形柔性搭板的作用性状及对地基沉降的适应性进行了分析，论文研究成果为该技术的进一步应用打下了坚实基础。

Appling the Terzaghi –Rendulic consolidation theory and the penetrative coefficient equivalently method of the storey of homogeneous ground equivalent with single well consolidation theory, according to the degree of consolidation equivalent principles, it turns the complicated plastics drain board ground into one layer of grounds to simple calculating.

采用太沙基—伦杜立克固结理论，并根据固结度等效原则，采用与单井固结理论等效的成层均质地基等效渗透系数法，从而将复杂的塑料排水板地基转化为无排水板成层地基，达到简化计算的目的。

First,the 3-d dynamic equations in cylindrical coordinate for transversely isotropic saturated soil were transformed into a group of governing differential equations with 1-order by the technique of Fourier expanding with respect to azimuth,and the state equation was established by Hankel integral transform method,furthermore the transfer matrixes within layered media were deriv...

首先，通过方位角的Fourier变换，将圆柱坐标系下横观各向同性饱和土的三维动力方程转化为一阶常微分方程组，基于径向Hankel变换，建立问题的状态方程，求解状态方程后得到传递矩阵；其次，利用传递矩阵，结合层状饱和地基的边界条件、排水条件及层间接触和连续条件，给出了任意简谐激振力作用下层状横观各向同性饱和地基动力响应的通解；然后，按混合边值问题建立层状饱和地基上弹性圆板非轴对称振动的对偶积分方程，并将对偶积分方程化为易于数值计算的第二类Fredholm积分方程，并给出了算例。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。