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seabed soils
相关语句
  海底土
     Physical and mechanical characteristics of seabed soils and its geological environment in South China Sea
     南海海底土体物理力学特征及其地质环境初步研究
短句来源
     Survey on corrosive factors in seabed soils in the Beihai-Lingao submarine cable route areas
     北海-临高海底光缆路由区海底土中几种腐蚀因子的调查
短句来源
  “seabed soils”译为未确定词的双语例句
     STUDY ON CONSOLIDATION PROCESS OF RAPIDLY DEPOSITED SEABED SOILS IN YELLOW RIVER ESTUARY
     黄河口快速沉积海床土固结过程研究
短句来源
     Based on this assumption, the Biot's consolidation theory is employed for evaluating effective stresses, pore-water pressure and deformations of seabed soils.
     基于这个假定,采用Biot团结理论计算海床土体的有效应力、孔隙水压力和变形。
短句来源
     Based on generalized Biot抯 theory, the u~U finite element formulations for dynamics of seabed under wave loading are derived by applying Galerkin抯 weighted-residual procedure, where u and U are the displacements of soil matrix and porous fluid respectively. The Kelvin-Voigt visco-elastic model is used to reproduce the constitutive relationship of seabed soils. The governing equations are numerically solved by Newmark抯 time integration scheme.
     基于广义Biot理论,采用Kelvin-Voigt模型描述海床土骨架的应力应变时间的本构关系,从Galerkin加权余量法出发建立以土骨架位移u和孔隙流体全位移U表达的u~U形式的有限元边值方程,采用Newmark逐步积分法求解时域内动力方程。
短句来源
     Samples taken from seabed soils in deep water are subjected to a large stress relief.
     从深水海底取得的土样要经受很大的应力释放。
短句来源
     Compared with the present evaluation method,the established methods described in the paper can take into account not only the properties of seabed soils but also the variations of the anchor position,including the embedment depth and fluke angle,and the action angle of mooring force.
     与已有的经验公式相比,所建立的计算模型不仅可考虑海床土性质,还能反映锚板定位(嵌入深度及角度)以及系缆力角度对锚极限抗拔力的影响。
短句来源
  相似匹配句对
     SELEMIUM IN SOILS
     土壤中的硒
短句来源
     Physical and mechanical characteristics of seabed soils and its geological environment in South China Sea
     南海海底土体物理力学特征及其地质环境初步研究
短句来源
     STUDY ON CONSOLIDATION PROCESS OF RAPIDLY DEPOSITED SEABED SOILS IN YELLOW RIVER ESTUARY
     黄河口快速沉积海床土固结过程研究
短句来源
     Rheology and Paddy Soils.
     流变学与水田土壤
短句来源
     THE NEW RW SEABED SURVEYOR
     RW型新式海床勘测器
短句来源
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This is a continuation of Reference [1]. In this paper, the exact solutions of three basic cases of the unsteady laminar flow problem of a viscous fluid layer, which is of finite thickness and over a flat plate moving in a horizontal direction, are given; then the flow distributions of seawater disturbed by undersea ground motion are computed by a finite difference method,and the seismic responses of seawater-seabed soil coupling system are also computed by a subfield-iteration method; finally, as a supplement,...

This is a continuation of Reference [1]. In this paper, the exact solutions of three basic cases of the unsteady laminar flow problem of a viscous fluid layer, which is of finite thickness and over a flat plate moving in a horizontal direction, are given; then the flow distributions of seawater disturbed by undersea ground motion are computed by a finite difference method,and the seismic responses of seawater-seabed soil coupling system are also computed by a subfield-iteration method; finally, as a supplement, the Stokes problem is discussed.The research results have demonstrated that the effect of viscosity of seawater on the seismic response of seabed soil may be neglected,that is,seawater may be dealed with as the ideal fluid in estimating undersea ground motion.

本文给出了平板上方有限厚粘流层非定常层流问题的三个基本情形的精确解;接着用差分法计算了海水受海底地面运动激扰时的流场分布,也用分域迭代解法计算了海水-海床土耦联体系的地震反应;作为补充,最后还讨论了Stokes问题。研究结果表明,海水的粘性对海床土地震反应的影响可以略去不计,在估计海底地震动参数的工作中海水可以作为理想流体来处理。

Based on unified equivalent harmonic loading on seabed soil foundation and energy approachsuggested by the authors,the development of dynamic water pore pressure and stability of soilfoundation for the vibration of nearshore/offshore gravity structure foundations excited byrandom wave loading are analysed. It may be seen that the dynamic problems of nearshore/offshore gravity structure soil foundations studied in this way is more reasonable and convenient.

基于笔者所建立的随机波浪荷载激起建筑物振动而作用于海底地基上的统一等效荷载,以及分析判断振动荷载下土体中振动孔隙水压力生长程度的能量法,研究、探讨了重力式海洋建筑物的振动导致地基中振动孔隙水压力的发展和地基的整体稳定性,具体算例表明这种方法用于分析海岸、海洋建筑物地基的动态问题比较合理、可行,且便于工程应用.

A consolidation finite element method is presented to solve the transient response of seabed, and an improved circular slip method is developed to analyze the stability of coastal structures. Dynamic elastic consolidation theory and linear permeability theory are employed to get a solution for the responses of pore pressure, displacements and effective stresses in a saturated seabed with arbitrary boundary conditions under the action of regular and irregular waves. The influence of wave induced...

A consolidation finite element method is presented to solve the transient response of seabed, and an improved circular slip method is developed to analyze the stability of coastal structures. Dynamic elastic consolidation theory and linear permeability theory are employed to get a solution for the responses of pore pressure, displacements and effective stresses in a saturated seabed with arbitrary boundary conditions under the action of regular and irregular waves. The influence of wave induced excess stresses on the slip surface is considered in the stability analysis. The spatial and temporal variations of pore pressure compare well with experiments. Calculations show that if the influence of wave induced seabed response is considered, the stability coefficient of coastal structures will decrease, and it is related to wave amplitude and the permeability of seabed soil.

应用动弹性固结有限元法,求解了随机波浪作用下饱和海床土体中的孔隙水压力、有效应力和位移的瞬态响应,并对海洋建筑物的稳定性进行分析。建立的有限元计算模型中采用了动弹性固结理论和线性渗流理论,海床可为具有任意边界条件的分层分块弹性多孔介质;利用简单条分法对海床和建筑物进行稳定性分析,在滑动面上考虑波浪附加应力的影响。孔隙水压力响应的理论计算结果与模型实验的量测值吻合的较好。计算表明,近海工程中考虑海床土体受到的波浪附加应力时,海床和建筑物的整体稳定安全系数将降低,降低幅度主要与海床面上的波浪压力、海床的渗透性有关。

 
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