查询词典 foundation plate

The theoretical solution of eigenfrequencies and vibration models of rectangular thin plate on foundation with completely free boundary was derived by the double finite cosine integral transform method. In the analytical process, the elastic foundation was regarded as Winkler foundation model.

将弹性地基以Winkler模型模拟，利用双重有限余弦积分变换的方法推导出了弹性地基上四边自由矩形薄板的固有频率和振型的解析解表达式。

The sloping plate can provide sufficiently the under-cooling for nucleation and lay a foundation for heterogeneous nucleation to form lots of nuclei of crystal internally and on the sloping plate surface, thus causing the melt to nucleates eruptively. Under the action of both metal flow and vibration, the nuclei formed on the sloping plate surface can move freely and disperse into the melt, and they are able to maintain the direct growth in spherical shape in the homogeneous composition and temperature fields.

倾斜板为形核提供足够大的过冷度和异质形核基础，大量晶核在斜板表面和内部形成，使熔体爆发形核，在流动和振动作用下斜板表面形成的晶核游离，弥散到熔体内部，晶核在均匀的成分场与温度场条件下，可以保持直接球状生长。

Finally, the foundation design includes the backfilling plate design and selecting and checking the independent foundation.

基础设计进行了底板设计及独立基础的选型和验算。

The results show that the calculated thickness of elastic foundation should be ten times as much as the radius of thick rounded plate , and calculated area of elastic foundation should be thirt.

用半解析元法分析了厚圆板基础与无限层土地基的三维动力相互作用，提出了一种新的半解析位移函数。

Furthermore, the effects of amount of filling sand in caisson, base bed width, and the reinforcement depth of foundation on stability of the semi-circular breakwater are analyzed. Compared with adding the base bed width, foundation reinforcement by driving plastic drainage plate is an effective way to improve foundation bearing capacity.

分析了箱内填砂量、基床宽度及地基加固深度对半圆堤稳定性的影响，相对于改变基床宽度，打设塑料排水板对软土地基进行加固是提高软土地基承载能力的有效途径。

In this paper, the longitudinal dynamic equation of plate on Winkler foundation is derived with thin plate assumption and Winkler foundation model.

十九世纪初叶，开始采用水泥混凝土作为路面建筑材料，至今只有一百多年的历史。

In reservoir design one sometimes meets with submerged structures, such as the underwater retaining wall, the foundation-rested immersed, plate which connects shore to intake-tower, the half-submerged navigation-guiding plate, a strut plate positioned midway in water depth, and also a diversion wall from shore.

在实际工程中，有时遇到某些建筑物是潜没在水中的，如水库水面以下的挡土墙和水库进水塔与岸边连接的撑墙；又有时遇到挡水建筑物与基础脱离，如水库中的导航板；另外还有一些既潜没在水面以下又与基础脱离的建筑，如水中撑板；还有岸边的平板。

In this paper,the raft is approximated by a thin plate with regular shape at first.Then the floating raft system is divided into several subsystems,such as plate raft,elastic foundation,etc,which are respectively modeled by four-parameter net method.After that,dynamic absorber and active absorber are put into a uniform frame to obtain the model of plate raft subsystem coupling with them.At last,according to the force and velocity relationship among each subsystem\'s interfaces,the entire plate floating raft system is modeled by subsystem structural admittance synthesis method.As the main structure of floating raft system is elastic,it is inevitably to study the optimization of actuators\' mounting positions before designing control law.In this paper,two new criterions are proposed for it.

本文首先将浮筏的中间筏架用一个规则形状的薄板近似；然后再将浮筏系统分解成若干个子系统，如板式筏架子系统、弹性基础子系统等，运用四端参数网络建立了它们的动力学传递方程，传递特性由导纳矩阵描述；接着，将动力吸振器和主动吸振器的(来源：ABC90论文00网www.abclunwen.com)分析统一于一个框架内，获得了与吸振器耦合的板式筏架子系统的动力学传递特性；最后，根据各子系统在各界面上的作用力和速度的相互关系，通过子系统结构导纳综合方法获得了整个板式浮筏系统的动力学传递方程，并在此基础上获得了系统的力传递函数模型。

These properties include: loading function of soil body under raft plate;"dense outside and disperse inside"or "otherwise" pile distribution method ; negative resistance of soil block under raft plate and at top pile; settlement of pile raft foundation and deformation characteristics of soil mass under pile end;and application of dispersed pile raft foundation for high buildings.

主要包括：筏板底土体分担的荷载作用、&外密内疏&和&外疏内密&布桩法、带裙房桩筏基础的处理、筏板下块状整体及桩上部负摩阻力、桩筏基础沉降及其桩尖下土体的变形特性、疏桩桩筏基础在高层建筑中的推广应用等。

Since the foundation of our "quality-led, credibility first" business purposes, specializing in various aluminum sales, development, aluminum processing, aluminum longitudinal and transverse processing, specific areas include: all kinds of tubes, Bars, profiles, strips, free forging, die forging, aluminum, pure aluminum plate, alloy plate, wall panels, corrugated plates, pressure plate, embossed plate, roof and building decoration materials.

自公司成立以来，我们秉承&质量为首，诚信第一&的经营宗旨，专门从事各种铝材的销售、开发、铝材加工、铝材纵、横切加工，具体范围包括：各种管材、棒材、型材、带材、自由锻、模锻、铝箔、纯铝板、合金板、幕墙板、波纹板、压型板、压花板、屋面板及建筑装饰材料等。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。