According to the equilibrium conditions of forces acting on a soil element, the problem for non-linear distribution of earth pressure of cohesive backfill is studied.
本文根据作用在土单元体上力的平衡条件，研究了粘性土的土压力非线性分布问题。
A new simulation strategy using the Discrete Element Method (DEM) based on spherical particle contact mechanics to tillage soil dynamics was proposed.
提出了采用基于颗粒接触力学原理的离散元法对耕作土壤动力学问题进行数值模拟的新思路。
Loess, a special soil widely distributing in northwest area of China, is often used as road foundation filling element and foundation soil during the large-scale highway construction of this area.
黄土是我国西北地区广泛分布的一种特殊土，在西部地区大规模的公路建设中，黄土常常被用于路基填料和地基土。
Using general-purpose finite element program ANSYS, a three-dimensional finite element model of interaction between raft foundation and groundwork soil is established.
结合大型有限元软件ANSYS，建立了筏形基础地基相互作用体系的全三维有限元模型。
This study investigated chemical element concentrations in calcite, calcareous soil and restored plants in a limestone rocky desertification area in Huaxi, Guizhou Province.
对贵州花溪区石灰岩、石灰土及定居植物中化学元素含量进行研究。
In this paper, the three dimensional elastoplastic analysis of a group pile soil interaction system is made by using the finite prism element method.
应用有限棱柱单元法对群桩与土相互作用系统进行了三维弹塑性分析，并以无限棱柱元模拟半无限空间地基土的边界条件。
Is a long-acting fertilizer for acid soils or neutral soil, the supply of plant phosphorus, magnesium and silicon, calcium element.
是一种长效磷肥，适用于酸性土壤或中性土壤，供给植物磷、镁和硅、钙等元素。
When the soil is deficient in some particular element and where there are no others to substitute, the plants will grow to maturity bearing only a fraction of that mineral.
当土壤缺乏某种特殊元素同时找不到替代物时，这些植物将生长成熟但是只有多少分之一的这种元素。
A given district's system condition may be expressed as taking degree of mankind's farming behavior extent to the key element the agricultural water and soil environment.
某区农业水土环境系统的状态可由人类农事活动对农业水土环境要素及其构成类型的进占程度描述。
The measurement of trace elements in water samples is a fundamental laboratory work for element transport in both soil and runoff.
水样中微量元素的测定是研究元素迁移的一项基础工作。
The simultaneous determination of multi-element in soil by ICP-AES with a CCD and the method for correction of matrix interference effect are studied and compared.
文章研究了用电荷-耦合装置电感耦合等离子体发射光谱同时测定土壤中多种元素，并对校正基体干扰效应的方法进行了研究和比较。
The soil consolidation can be simulated by using a finite element numerical model of fluid-solid coupling of fluid seepage in a deformable porous medium.
针对饱和土固结问题，利用可变形多孔介质中流体渗流的流固耦合有限元数值模型，对该问题进行了数值模拟。
Based on the response stress of one-dimensional soil layer, the finite element approach was improved and a response stress approach was put forward.
从地震时一维土层反应应力入手，对拟静力法中有限元反应加速度法的地震荷载加载方法进行改进，提出了有限元反应应力法。
The earthworm had a very strong ability to concentrate the heavy metal element, and the ability increased along with the increase of soil metal pollution.
蚯蚓对重金属元素具有很强的富集能力，且随土壤污染程度增加而增加。
This paper presents a direct finite element method for analysis of dynamic soil-structure interaction. It can be performed by use of the large general structure analysis software.
本文给出结构-地基动力相互作用分析的一种直接有限元方法，可以依托大型结构分析软件完成结构-地基动力相互作用研究工作。
By making use of the semi analytical element method, the three dimensional soil movements problem of pipe jacking is transfered to a one dimensional numerical calculation.
利用半解析单元法将顶管施工中三维土运动问题转化成一维数值计算。
A thin layer joint finite element is introduced for modelling of the interfaces between structure and soil in the analysis of nonlinear dynamic interaction.
本文引入了用于研究结构与地基非线性动力相互作用时，对其接触面进行模型化的由层状弹塑性材料构成的有限薄层连接元法。
Finite element method can consider piles and soil as a whole, practically simulate their interaction, and offer reasonable basis for design and construction.
有限元法可以把桩与土体作为一个整体来考虑，切合实际地模拟抗滑桩与土体的相互作用状态，为设计和施工提供合理的依据。
The type of soil body structure is main element that restricts the sediment and deformation of a highway foundation.
土体结构类型是制约公路路基沉降变形的主要因素。
Therefore, the working mechanism of reinforced cement-soil retaining wall was studied by experiment and finite element method in this paper, and a design method was summarized.
因此，本文通过室内外试验研究及有限元分析，从多个方面研究了加筋水泥土挡墙的工作机理，并结合现有的研究成果总结了一整套设计计算方法。
In order to analyze the bearing mechanism of belled pier with different dimensions, by three-dimensional finite element, a contact model of pier and soil was established.
为了分析不同尺寸条件下扩底墩的承载机理，利用三维有限元，建立墩土接触模型，分析不同墩身长度、扩底直径以及扩大头锅底高度时扩底墩的承载性状。
A time domain coupling procedure was developed for the finite element (FE) and scaled boundary finite-element (SBFE) methods to analyze dynamic unbounded soil-structure interaction problems.
该文提出了一种有限元(FE)比例边界有限元(SBFE)时域耦合方法以分析结构地基动力相互作用问题。
A new anisotropic soil constitutive model is applied to the finite element analysis of a high earth core dam.
采用各向异性非线性弹性模型，对水荷载作用下粘土心墙坝进行有限元数值分析，并与邓肯模型计算结果比较。
In this thesis the deeply-embedded foundation and the soil are analysis by a self-made nonlinear finite element programme—DFESS.
本文对垂直及水平荷载作用下，平台基础与土的相互作用进行了三维非线性有限元分析。
Based on the theory of elastic-plastic deformation, according to the finite element method, this paper presents a nonlinear analysis of the distribution of the soil pressure of the ditch conduit.
表明对大型沟埋式管道的上压力，采用弹塑性理论的非线性分析是比较符合实际的，其结果可供设计参考。
A finite element-curve fitting method for determining the rigidity of back filling soil, which is a basic component factor of the model, is also given in this paper.
并为了求得模型中的基本组成因素——土体刚度，提出有限元-曲线拟合法。
This paper describes a pile groups-soil-pile cap interaction model in the lateral loading and proposes a finite layer-finite element analysis for the single pile and groups pile.
本文研究了水平荷载下桩—土—承台共同作用的问题，对单桩和群桩分别进行了有限层—有限元分析。
The primary factor of soil geochemical element F1 may represent a quartz-vein-altered rock-type gold mineralization.
南伙房土壤化探元素主因子f1可能代表了石英脉-蚀变岩金矿化。
The primary factor of soil geochemical element F1 may represent a quartz-vein-altered rock-type gold mineralization.
南伙房土壤化探元素主因子f1可能代表了石英脉-蚀变岩金矿化。
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