地基

The study of dynamic interactions of foundations and grounds on half space has been the focus on the mechanics and engineering fields. It is of great value to the development of the elastodynamics and is very helpful to the analysis and design of foundations subjected to dynamic loads, such as vibrating machines and seismic waves.

半空间地基与基础的动力相互作用问题的研究一直受到力学界和工程界的关注，它不仅对于弹性动力学的发展有着重要的学术价值，而且对机器基础及地震荷载作用下基础的分析与设计具有重要的指导意义。

The study of dynamic interaction of foundations and grounds on half space is of great value to the development of the elastodynamics and is helpful on physical geography, seismography, and rock and soil mechanics, owning practical.This dissertation is based on the practical saturated governing equations of elastic waves in saturated soils established by Longzhu Chen,ect.

半空间上地基与基础的相互作用问题不仅对于弹性动力学理论的发展有重要的学术价值，而且在地球物理学、地震工程及岩土力学等工程问题中均具有重要的现实意义，有着广泛的应用前景。

What are the boundary conditions, and what is the free body of the embankment foundation?

但土堤地基的边界条件是什么？又怎么得到它的脱离体呢？

Based on the program of MARC, the paper use FEM of plane strain to research the performance of composite foundation under flexible uniform load and embarkment load .

本文运用MARC软件，将平面问题有限元法用于柔性均布荷载及路堤荷载作用下复合地基性状的研究。

Since the modes of foundation are dense,by taking the criterion of energy response as mode truncation index,the energy norm and criterion are established to calculate the mode truncated order of dynamic compaction response.

由于地基模态密集，提出以能量响应信息的收敛作为模态截断的判断指标，建立能量范数和能量判据，计算强夯动力响应的模态截断阶数。

The total effect of the load of the water mass on statical deformation consists of the statical elastic deformation in rock medium resulting from the water load, the deformation of the gravitational equipotential surface caused by the water mass, and that resulting from elastic deformation.

水体质量荷载的静力学形变总效应包括：荷载引起的地基岩石介质的静态弹性形变，质量引起的重力等位面形变以及静态弹性形变所引起的重力等位面形变。

He stumbled to get to his closet, don something warm, and jump through the escape hatch to the ice cave beneath the basement, Miller struggled to run across the room.

他脚下一个踉跄，跌倒在长椅上，但是他又试着爬了起来。他打算去壁橱拿到一些保暖的衣物，然后从逃生秘道进入地基下的冰窟，于是他挣扎着向前跑去。

All the work done is as follows:Firstly, given the impact of the soil gravidity stress on the scale of the vertical drain disturbance, Vesic's column cavity expansion theorem is mended. Then the radius of the plastic zone, the ultimate crowding stress and the soil displacement in the intersection of plastic and elastic areas are deduced when Mohr-Coulomb surrender criterion is adopted. The result of which caters better to the real situation.

本文针对竖井地基的施工扰动效应及固结可靠性做了如下一些工作：首先，考虑土体自重应力对竖井扰动范围的影响，对Vesic圆柱形孔扩张弹塑性理论解进行了修正，采用Mohr-Coulomb屈服准则，得到了弹塑性交界处土体位移、塑性区半径以及最终挤土应力等理论计算公式，修正以后的结果能更好地符合竖井施工的实际情况。

For dynamic problem, the unsimultaneous staggered iteration FEM method with explicit central difference scheme is used for the elasto-plastic analysis of the dynamic response of a soil foundation. The computed results show good agreement with soil mechanic knowledge.

对于动力问题，采用异步交叉迭代显式有限元解法，对典型的地基算例进行了固液耦合的有限元动力弹塑性反应分析，结果定性符合土力学的一般规律。

Pyramid: Ancient monumental structure constructed of or faced with stone or brick and having a rectangular base and four sloping triangular sides meeting at an apex.

金字塔：用砖、石材料建造或表面覆以砖、石的古代纪念性建筑物，地基为矩形，四面为倾斜的三角形在顶端交会。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷