土体

The E-B model of Duncan-Chang' model is applied to the nonlinear analysis and the double-hinged plate navigation lock chamber structure on the on rigid-pile composite foundation is also calculated here.

论文结合宁波姚江船闸工程实例，建立了计算模型，进行了计算分析，并用Ansys软件，针对土体的特性利用Ansys自带的APDL语言进行了二次开发，实现了非线性分析采用邓肯—张模型中的E—B模型，对刚性桩复合地基上双铰底板式闸室结构进行了计算分析。

In this way, the hysteretic loop curve is not only related to the backbone curve, which is the fact in Masing's model, but also related to the damping ratio curve, so that the shear stress strain behavior under cyclic loads exhibits the actual damping characteristics of the soil.

本文提出了一种基于阻尼构造粘土恢复力模型的方法，使得由此构造的滞回曲线不但与土的骨架曲线相关，而且与阻尼比曲线有关，滞回圈的形状特性反应了土体的真实阻尼特性。

Based on the hyperbolic skeleton curve of Hardin-Drnevich, small strain dynamic dissipation function was formulated by adopting the Masing rule.

以Hardin-Drnevich模型的双曲骨架曲线为基础，采用Masing准则构造其滞回圈，形成小应变土体动力耗散函数。

Starting from the skeleton curves of Hardin-Drnevich model and Ramberg-Osgood model and formulating the hysteresis loop by use of Masing\'s rule,the research construct dynamic dissipation function for soils using the assumptions of the beeline and the skeleton curve shift laws by use of thermodynamic approaches.

论文以Hardin-Drnevich模型和Ramberg-Osgood模型的骨架曲线为基础，采用Masing准则构造其滞回圈，对塑性中心移动为直线和骨架曲线两种情况，分别构造了土体动力耗散函数。

The foundation soil is divided for finding the ultimate bearing capacity of a foundation with given buried depth and size. Supposing a uniform load acts on the foundation, Mindlin's integral formula and comer points method are used to get extra stress of every mesh knot by MATLAB program, then the principal stress is found. Combining with failure criterion, MATLAB program is used to find coordinates of points which are destroyed. Using graphic processing function of MATLAB, the failure points are showed in the coordinate.

为确定作用在已知埋深、给定基础形状地基土上的极限承载力，对基底下的土体进行网格划分，先假定一均布荷载作用在此地基土上，运用明德林解的积分公式，结合角点法，编制MATLAB语言程序，求出每个网格节点上附加应力，进而求得每个网格节点上主应力，根据破坏准则，结合程序找出破坏点的坐标，利用MATLAB的图形处理功能，把破坏点的坐标在坐标图中显示出来。

Based on the analysis of the factors caused land subsidence, the internal mechanism and development process of land subsidence caused by two mainly factors of dewatering and underground mining have been studyed in this thesis. The random medium model and methods have been established to calculate the land subsidence and deformation caused by dewatering or underground minging and both of them. The prediction problem of land subsidence and deformation caused by single factor and many factors has been solved.

本文在分析引起地面沉降原因的基础上，针对引起地面沉降变形的主要因素——地下水疏降和固体矿物开采，分析、研究了其引起地面沉降变形的内在机理和发展过程，推导出地下水疏降和地下固体矿物开采引起的地面沉降变形计算的随机介质模型，给出了具体的计算方法和计算步骤，并将固体矿物开采和岩土体疏水等导致地表沉降视为相互独立的事件，解决了固体矿物开采和地下水疏降共同作用下的地面沉降变形的线性叠加计算问题。

The finite element modellings of superstructure, raft and soil medium are developed.

分别对空间框絮、筏基和三维非均质土体的有限单元模型作了简单介绍。

To investigate the mechanism of moisture transfer of the subsoils under the influence of atmospheric temperature,a coupled heat-moisture apparatus has been self-designed and processed.

4为了解大气温度作用下路基内部土体的水分迁移规律，自行设计加工了一套湿热耦合试验装置。

It was shown that the bonding or debonding conditions between the soil on the active side and the caissons were affected by the undrained shear strength of the soft subsoils,the aspect ratio of the caissons,the position of the attachment point and the inclination of the pull-out force.

由此表明：软土地基的不排水抗剪强度、吸力式沉箱结构的长径比、荷载作用点位置等因素对于主动侧土体与结构的接触状态具有一定影响。

The well-known empirical e-lgσ' relation is introduced into the study on one-dimensional nonlinear consolidation of one-layered soil under cyclic loadings. The corresponding consolidation equation is established with the assumptions that the decrease in permeability of soil is proportional to the decrease in compressibility during the consolidation process and that the distribution of initial effective pressure does not vary with depth.

将孔隙比e与有效应力σ'关系引入循环荷载作用下单层地基的一维非线性固结问题的研究之中，通过假定土体中的初始有效应力沿深度均匀分布和固结过程中上体渗透性的降低与压缩性的减小成正比，建立了低频循环荷载作用下单层地基的一维非线性固结问题的固结方程。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。