地基

By using Lee\'s matching law, the excess pore-air pressure, excess pore-water pressure and settlement in the Laplace-transformed domain are obtained for one-dimensional consolidation in unsaturated soils, under the large-area uniform instantaneous loading. A computer program using the method by Crump and Durbin is developed to obtain the semi-analytical solution of the excess pore-air pressure, excess pore-water pressure and settlement under the boundary conditions of the top surface permeable to water and air and the bottom impermeable to water and air.

8采用李氏比拟法，应用Merchant粘弹性模型，得到了Laplace变换域内粘弹性非饱和土地基一维固结时超孔隙水压力，超孔隙气压力以及土层沉降的解；采用Crump及Durbin方法实现Laplace逆变换，获得大面积均布瞬时加荷，在顶面排气排水，底面不排气不排水情况下粘弹性非饱和土地基一维固结时的半解析解。

Deep-mixing technique is one of common ground improve methods and widely used in composite foundation and curtain for cutting off water.

深层搅拌法是一种常用的地基处理方法，目前在复合地基和止水帷幕中被广泛应用。

The settlement of foundation with a cylindrically elastic inhomogeneity is researched.

研究各向同性地基中含一个圆柱形弹性夹杂的地基沉陷问题。

The vehicle loads are considered as rectangular harmonic moving loads,and the analytical solution of the pavement and layered ground interaction is deduced with Lame decomposition theorem of displacement field and Fourier transform method.

首先，考虑车辆荷载的多轮性质，利用三角级数、Fourier变换及叠加原理等方法推导获得了粘弹性地基上连续配筋混凝土路面在多轮荷载作用下的稳态响应解；另外考虑基底剪切阻尼作用，详细分析了荷载参数、路面参数和地基参数对路面动力响应的影响。

Two sets of analytic functions are used in the horizontal directions and the method of discreteness is used in vertical direction.

用半解析单元法分析了矩形薄板与无限层土地基的静动力相互作用，提出了板单元和地基单元半解析位移函数。

Based on dynamic equilibrium equations of three-dimensional elasticity, a state equation was established for orthotropic foundation plates using double Fourier series, in which no assumption about stress or displacement modes was made. Analytical solutions and frequency equations of unified formulas were presented for thin and thick laminated foundation plates.

从三维弹性力学动力平衡方程入手，抛弃应力或位移模式的人为假定，利用Fourier双重级数，建立了正交各向异性地基板的状态方程，并分别给出了地基上任意层厚薄板静力问题的统一解析式和动力问题的频率方程。

The Non-perfect Elastic Collision DC model in half space is presented, considering the influence of participating soil mass and the interaction of tamper and ground during DC. Series solutions of displacement, velocity, acceleration and impact stress are obtained.

通过与边界元法、Laplace—Hankel联合反变换法的计算结果，以及山西某湿陷性黄土地基和南京某填土地基工程中的实测数据的验证和对比表明，该模型是符合实际的，它可用于分析强夯规律，计算冲击应力，解释强夯加固机理和工程中的现象，便于工程应用，而且比其他方法简单易行。

The results of example indicate that the effects of geometric non-linear and the elastic deformation of foundation should be not neglected.

算例计算结果表明，对弹性地基高桥墩的设计计算，几何非线性及地基弹性变位的影响均不可忽视。

Because groundwork adopting ferroconcrete structure is chosen in advance, drive error of theodolite working on it is very little and can be ignored.

由于地基是事先选好的，多采取钢筋混凝土结构，经纬仪借助于地基环固定在地面上，工作时带动误差非常小，可忽略不计。

Based on the Betti-Rayleigh dynamic reciprocal theorem, the reciprocal property of the Green function is demonstrated; and the analytical solution of soil vibration subjected to moving loads is deduced. By means of double Fourier integral transform, the problem is firstly transformed into wave number-frequency domain, which makes it very convenient to derive the solution and furthermore to analyze the frequency characteristics of soil vibration.

基于Betti-Rayleigh动力互易定理，论证了地基土Green函数的互易性，推导了移动荷载引起的地基土振动解析解，进而推证出移动常力荷载和移动简谐荷载作用下地基于表面振动在波数－频率域内和空间－时间域内的解析表达式，并采用Matlab对其进行数值计算。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。