Abstract : in this paper , a simplified model for dam - foundation dynamic interaction analysis in time domain is proposed in terms of the studying of the characteristics of the dynamic impedance of canyon cut in elastic half - space 文摘:通过对拱坝地基的半无限空间动力体系的分析，提出了拱坝-地基动力相互作用问题的简化求解途径，并结合小湾拱坝进行了实际分析。
A simplified theoretical model has been established to describe the big yawed rod penetration into semi - infinite rolled homogeneous armor ( rha ) targets at normal incidence , the effect of ballistic yaw is quantitatively described in the rate of penetration 本文建立了大攻角的长杆体垂直侵彻半无限靶的简化物理模型，定量地分析了大攻角对垂直侵彻的影响。
A three layered magneto - electro - elastic half - space subjected to vertical mechanical loads , charge or magnetomotive force is analyzed as the numerical example , and the calculative results of two different stacking sequences are compared 以在垂直机械载荷或电载荷或磁感应强度作用下三层半无限压电压磁弹性体为算例，并比较了两种不同材料叠放顺序的计算结果。
However boussinesq solution based on semi - infinite elastic space model is still applied to calculate additional stress and settlement in foundation . to resolve the problems of layered soil , some advanced study has been done 而目前计算地基附加应力和沉降多是基于均质各向同性半无限弹性体的boussinesq解，为了很好地解决成层地基模型的计算问题，许多学者已经致力于这方面的研究。
Based on the principle of structure - soil interaction , the coupling model was used to simulate the layer structure , nonlinear stress - strain property and status of slipping , tension cracking between soil and reinforced concrete wall 摘要在考虑了土与结构的相互作用的基础上，采用耦合模型来模拟土体的分层性、非线性以及土体和钢筋混凝土之间的滑移、拉裂、嵌入以及土体的半无限边界条件。
On the pulling anchor - cable step , the internal force of beam - on - foundation can be calculated by winkler hypothesis in the case of weak rock mass and infinite half elastic foundation hypothesis in the case of stratums that are of some elastic characteristics 在张拉阶段，可以采用温克尔假定计算破碎软弱岩体上的地梁内力；对于有较好弹性性质的地层，则可按弹性半无限体地基计算地梁内力。
Based on the finite layer method and finite element method , a numerical analysis model of pile - soil interaction is established for single pile . it is proposed to transform a half infinite space problem into a 2 - d quasi - plane problem 对于单桩，本文以有限层地基模型和平面有限元法为基础，建立了能够反映水平荷载下桩土共同作用的弹性数值分析模型，把半无限空间问题转化为准二维平面问题。
Receiver function is simulated for inhomogeneous media , as a special case for elastic wave modeling with nearly vertical incidence plane p wave as initial condition , and provide the base for inversion and migration of receiver function in inhomogeneous media 以下覆半无限空间近垂直入射平面p波，作为弹性波数值模拟的特例，来模拟接收函数，从而为横向非均匀介质中接收函数的反演和偏移成像问题奠定了研究基础。
The surface - wave theory was firstly provided by rayleigh , which can be used in even medium and many other learners developed rayleigh ' s theory and provided another theory which can be used in layered medium 瞬态面波法的理论基础是英国学者瑞利提出的半无限弹性均匀介质中的瑞利面波理论及其后来发展起来的半无限弹性层状介质中的频散理论，因其具有同时可以大范围检测，精度好、效率高等优点，在无损检测方面有很好的前景。
With the method of the lie group transformation , the symmetry of the equation governing one dimensional finite strain consolidation is discussed and , from the point of the symmetry , the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed . where - after exact or approximate analytical solutions focused on different consolidation problems are obtained , these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress , the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession . the implicit exact solution without considering the effect of self - weight of soil is obtained 运用lie群变换方法讨论了一维大应变非线性固结方程的对称性，以及在该对称性的意义下求解这类非线性偏微分方程解析解答的可能性，并就大应变非线性固结问题的多种情况求得了其完整的或者近似的解析解答，具体包括：基于有效应力与孔隙比以及渗透系数与孔隙比之间的关系的一些假定，采用李群变换求解考虑材料非线性和几何非线性的半无限均质土体大变形固结非线性偏微分方程，得到了一个不考虑自重固结的完全解析解。
