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弹性土
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  elastic earth
     The structure is studied from the standpoint that it is a continuous system in elastic earth medium and having a distributed mass.
     结构系按弹性土体介质内具有分布质量的连续体系进行计算。
短句来源
  “弹性土”译为未确定词的双语例句
     SCATTERING OF ELASTIC WAVE BY A CYLINDRICAL SHELL EMBEDDED IN SATURATED SOILS
     饱和弹性土体中圆柱壳体对弹性波的散射
短句来源
     As a numerical example, the case when the S waves (shear wave)act as incident waves is considered and the reflection coefficients of P 1 wave, P 2 wave(slow compression wave)and S wave in saturated soils and the refraction coefficients of P and S waves in elastic soil are calculated.
     作为算例,数值计算分析了S波从饱和土入射于饱和土与弹性土交界面时,饱和土中P1、P2 和S波的反射系数以及弹性土中P波、SV射系数与界面排水条件、入射角以及频率之间的关系。
短句来源
     The numerical inversion of Hankel transform is used to analyze the effect of anisotropy of the elastic soils and the saturated soils on the vertical surface displacement.
     采用数值Hankel逆变换,分析了弹性土和饱和土的各向异性对地表竖向位移的影响。
短句来源
     REFLECTION AND TRANSMISSION OF ELASTIC WAVE AT THE INTERFACE OF NEARLY SATURATED SOIL AND ELASTIC SOIL
     弹性波在准饱和土和弹性土界面的反射与透射
短句来源
     REFLECTION AND REFRACTION AT THE INTERFACE WHEN S WAVES PROPAGATE FROM SATURATED SOIL TO ELASTIC SOIL
     S波由饱和土入射于弹性土时在界面上的反射与透射
短句来源
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  相似匹配句对
     ON PROPAGATION OF ELASTIC WAVE IN SOIL
     弹性波在体中的传递
短句来源
     Propagation Velocities of Elastic Waves in Saturated Soils
     饱和弹性波的传播速度
短句来源
     Development of Elastic Impedance
     浅析弹性阻抗
短句来源
     The Elasticity of Transport Price for High Speed Railway
     高速铁路的运价弹性
短句来源
     Investigation the Specific Gravity of Soil
     的比重研究
短句来源
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  elastic earth
It is shown that a seismoacoustic wave propagating at the boundary between the elastic earth and the atmosphere is an analog of the Stonely wave that appears in the presence of a near-surface low-temperature layer in the atmosphere.
      
Variational principle for elastic earth models with an arbitrary initial static stress field
      
The value of the estimated amplitude factor is in agreement with that predicted theoretically for the zonal tides of an elastic Earth model.
      
Expressions for kinetic energy, elastic potential energy and gravitational potential energy for the spheroidal oscillations of a spherically symmetric, self-gravitating, elastic earth model have been obtained.
      
A Hamiltonian theory for an elastic earth: Canonical variables and kinetic energy
      
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In the paper, it is assumed that backffill in the tied double retaining walls is not in the ultimate active equilibrium state but in the elastic equilibrium state, based on deformations of soil and tie rods. Elastic earth pressure should be used to calculate the tension in the rods. Finally, an expression for the elastic earth pressure is derived based on the theory of elasticity.

本文根据土体及拉杆的实际变形,认为对拉式挡土墙内的填土不是处于主动极限平衡状态,而是处于弹性平衡状态,应采用弹性土压力来计算拉杆的拉力,并根据弹性理论导出弹性土压力的表达式。

This paper is a review of recent studies on the consolidation theory of viscoelastic solils and 3-D calculation methods of sand drain foundations.With the generallized Voigt model,the governing equation and the analytic soulutions of 1-D and symmetric consolidation for various viscoelastic soils are derived.Terzaghi′s and Barron′s elastic solutions and Qian Jiahuan′s viscoelastic solutions are only specific ones of the generlized solution in this paper.A method for consolidation analysis of founda- tions with...

This paper is a review of recent studies on the consolidation theory of viscoelastic solils and 3-D calculation methods of sand drain foundations.With the generallized Voigt model,the governing equation and the analytic soulutions of 1-D and symmetric consolidation for various viscoelastic soils are derived.Terzaghi′s and Barron′s elastic solutions and Qian Jiahuan′s viscoelastic solutions are only specific ones of the generlized solution in this paper.A method for consolidation analysis of founda- tions with sand drains by vacuum and surcharge preloadings is also presented,in which excess pore pressure is calculated with the analytic solution and displaceement with a numerical method.This method takes account of the effects of 3-D consolidation,soil viscoelasticity,smear,well resistance and group action of sand drain.The presented method is simple.The calculated results for layered foundations are in fairly good agreement with field measurements.

本文采用广义Voigt模型,导出普遍适用于各种粘弹性土的竖向固结和轴对称固结基本方程及其解析解。它概括了太沙基、巴隆的弹性解和钱家欢60年代发表的粘弹性解等。对于砂井地基真空或堆载预压固结分析,提出一种孔隙压力按解析解近似计算,位移数值求解的半解析方法,全面考虑了土的粘弹性、砂井地基固结三向性、井阻、涂抹、砂井群和成层地基的共同影响。理论计算与工地实测较吻合。

Based on the modified theory of elastic wave in saturated soils, Lamb's problem for saturated soils is studied in this paper. First, the governing differential equations for saturated soils are solved by means of Hankel transform. Then, under the consideration of the boundary value condition, the solutions for the displacement and stress components of the saturated soils are expressed in term of integral forms which can be evaluated by numerical quadrature. Finally, the vertical surface displacement is numerically...

Based on the modified theory of elastic wave in saturated soils, Lamb's problem for saturated soils is studied in this paper. First, the governing differential equations for saturated soils are solved by means of Hankel transform. Then, under the consideration of the boundary value condition, the solutions for the displacement and stress components of the saturated soils are expressed in term of integral forms which can be evaluated by numerical quadrature. Finally, the vertical surface displacement is numerically presented and the influence of the permeability and the frequency of the excitation on the vertical displacement is investigated. This study is reasonable for engineering practice and provides an effective method to analyze the similar problem about dynamic response of underground structure.

基于合理的弹性土波动方程 ,应用积分变换方法 ,研究了饱和半空间地基中埋置点源荷载的轴对称Lamb问题解答。借助数值Hankel反演 ,分析了地基表面竖向位移的变化规律 ,并考察了土的渗透性及激振频率对它的影响。本文的结论可应用于地下爆破及地下结构等动力分析 ,对工程实践有指导意义。

 
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