1) large diameter cylinder structure
大圆筒防波堤结构
2) embedded large cylinder breakwater
沉入式大圆筒防波堤
1.
It is assumed that the stability of an embedded large cylinder breakwater mainly depends on its embedded depth in soil.
根据大圆筒防波堤直径很大的特点 ,在无锚板桩计算方法的基础上 ,进一步考虑土体作用于筒底的水平切力、筒底土反力、以及筒内外土体对筒壁的竖向摩擦力对稳定性的作用 ,建立了沉入式大圆筒防波堤满足稳定性要求的嵌固深度计算方法。
4) large-diameter cylindrical structure
大圆筒结构
1.
Analyses of bearing capacity for deeply-buried large-diameter cylindrical structure on soft clay considering cyclic-softening effect;
考虑循环软化效应的软基上深埋大圆筒结构承载力分析
2.
Based on simplified form of general Biot′s consolidation theory neglecting inertia effect of soil skeleton and pore fluid,utilizing the improved Cam-clay dynamic constitutive model to simulate the accumulation effect of deformation and extra porepressure in soft clay,the elasto-plastic effective stress finite element analysis is conducted for large-diameter cylindrical structure in soft ground.
基于忽略土骨架和孔隙水惯性效应的广义Biot固结理论的简化形式,采用前人提出的改进剑桥弹塑性动力本构模型以模拟软黏土在循环荷载作用下的变形、超静孔隙水压力累积效应,对于循环波压力作用下软土地基与大圆筒结构物耦合系统进行了弹塑性有效应力有限元分析,探讨了不同波高条件下大圆筒结构的不同变形模式以及失稳机理。
3.
To evaluate the stability of the large-diameter cylindrical structure in soft ground under wave loading,considering the cyclic softening effect of soft clay induced by wave loading,a nonlinear elasto-plastic constitutive model based on the concept of cyclic shear strength of clay is proposed and numerically implemented in the FEM software ABAQUS.
为了评价深厚软土地基上大圆筒结构在波浪荷载作用下的稳定性,考虑波浪可能导致的软黏土地基发生强度和刚度弱化的循环软化效应,将Andersen等建议的软黏土循环强度概念与不排水条件下Duncan-Chang非线性应力应变关系相结合,建议了非线性弹塑性-循环强度模型,并在ABAQUS软件中予以数值实施。
5) large cylindrical structure
大圆筒结构
1.
Wave pressure response of large cylindrical structures in seabed-wave-structure coupling system;
结构—波浪—海床耦合系统中大圆筒结构的波压力响应
2.
By conducting model tests of the large cylindrical wharf structures in varying ratios of depth to height and diameter to height, dynamic characteristics of large cylindrical structures, such as frequency, mode of vibration and dynamic magnification factor are analyzed emphatically in this paper.
根据试验结果,提出合理的振型、基频建议公式和加速度分布系数建议图形及大圆筒结构适用范围。
3.
In order to investigate the mechanism of instability and failure of the deeply embedded large cylindrical structure under random waves, wave flume experiments with different wave conditions were carried out and the corresponding dynamic earth pressures on the structure were measured.
为探究随机波作用下沉入式大圆筒结构的失稳破坏机理 ,文章进行了不同波浪条件下的随机波水槽实验并测取了结构表面的动土压力时程 ,通过在时域和频域的综合分析并结合结构的实际失稳状态 ,文章对沉入式大圆筒结构的失稳破坏机理进行了探索和阐释。
6) large cylinder structure
大型圆筒结构
1.
In the light of a failure project, the stability calculation methods for large cylinder structures in coastal soft clay foundation are compared, and the determination of design values of soft clay in the wave action and effects of foundation scour on the stability of large cylinder structures are discussed.
提出了反复荷载作用下软土的动力特性、水流作用下结构周围泥面的冲刷演变规律以及波浪作用下大型圆筒结构与软土的动力相互作用等,这都是软土地基条件下大型圆筒海岸结构工程应用亟待解决的关键问题。
补充资料：防波堤
| 防波堤 break water 用于防御波浪以使港口水面平稳的水工建筑物。对于保护港池岸线不受冲蚀、防止港池淤积也有一定作用。防波堤的建设会改变原海岸线的动力平衡，在进行防波堤平面布置和口门选择时，要尽可能减少港池内的回淤，要力求使口门朝向与风浪、流的方向交角最小，要保证船舶方便进出港池并使船舶在港内停泊平稳和作业安全。在平面布置中，防波堤有时须建成与岸相接的环抱形式，有时则要求离岸布置、与岸平行布置或成某一角度，主要要根据水文、气象等条件确定。
防波堤按断面形式可分为斜坡式、直立式和混合式3种。结构型式的选择决定于水深、波浪、潮差和地质条件，以及当地建筑材料情况和施工条件等因素。斜坡式防波堤是由块石和各种形状的混凝土块体抛筑而成，适用于水深较小和地基土质较差的堤址处采用；直立式防波堤用混凝土方块或沉箱砌筑，适用于水深较大，地基土质较好的堤址采用；混合式防波堤的下部为抛石斜坡结构，其上部为直立墙。斜坡式防波堤外层防护块体通常是由混凝土预制，其形状有数十种，常用的形状有扭工字块体和四角锥块体。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条