The dishing ring seals belong the end face sealing parts , and act as sealing by some axial compression . because of different distribution of internal pressure and temperature , the friction inside the end - face is also different at all area 碟形密封圈属于端面密封元件，依靠一定的轴向压缩量进行密封，由于端面内压力分布、温度分布不均，端面内的摩擦状况也不是处处相同。
Because the distribution of soft soil is very widely , the sliding strength of soft soil is low , the moisture content of soft soil is rich , and the compression of soft soil is large , the handling of soft base is an important problem 这是由于软土抗剪强度低，含水量大，压缩量大，路堤建成后不可避免产生不均匀沉降，影响路面平整度，这样在行车时会出现跳车现象，既不舒服，又影响安全。
It is pointed out when the pre - stressing force of spring component is larger than the stripping force , as well as the largest compression value of spring component is less than the largest permissible compression value , it should be as two confined indexes 并提出弹性元件的预压力大于卸料力，弹性元件最大压缩量小于弹性元件的最大许可压缩量，应作为冲裁模卸料弹性元件设计时的两个限制指标。
Based on the full - depth / part - depth shear spring model proposed by luo weide and the theoretical corealation between the pile base resistance and the pile base settlement presented by randolph , a elastic analytical approach for computing the pile compression is conducted 本文利用罗惟德全深度? ?变深度剪切弹簧模型推导了桩身压缩量的弹性理论解析计算方法，选用randolph的桩端沉降与桩端阻力的关系，利用荷载传递法推导了桩身压缩量的数值计算方法。
With the method , the resules , calculated with this analytical approach and the numerical methods based on load transfer method , are compared with the results measured in the field test . from this , the elasticity and plasticity characteristics of the pile and the influence factors of the compression are got . some useful conclusions are drew 分析桩顶沉降、桩端沉降与桩身压缩三者之间关系，得出了不同荷载水平下桩身混凝土的弹塑性性状和发展规律，分析了桩身压缩量的影响因素，得出了一些有用的结论。
If asphalt concrete specimen is in stabilization by exert confining stress before the static triaxial test , it is then found that under the condition that time is long enough , the volume of the specimen will shorten gradually and stable around a fixed value , and the amount of compression is essentially the half of the volume of void itself . it is also found that in stabilization by exert confining stress the linear phrase will be shorten in the figure of the static triaxial test of specimen , while the initial tangent modulus will be augment . 3 在进行静三轴试验以前先对沥青混凝土试件进行围压稳定，发现在时间足够长的条件下，试件的体积会逐渐缩小，并逐渐稳定在某一定值，其压缩量基本上为其本身孔隙体积的一半；经围压稳定后的试件静三轴试验曲线上的线性阶段明显缩短，而初始切线模量增大。
This paper presents an investigation on a new type of rubber damper , that is , a rubber damper with honeycomb structure . the honeycomb structure will enhance the energy dissipation of a rubber damper and as a result increase the damping of the damper . the performances of honeycomb dampers are experimentally tested by a test rig . the results show that the diameter and the density of holes of the honeycomb structure are important parameters in the design of the damper . for a damper of given size , there are optimum values of both parameters with which the damper provides highest damping . additionally the honeycomb structure does not change the correlation of damping to frequency . a practical honeycomb damper is designe d and applied to inlet pipe of a screw compressor in a petroleum factory for vibration reduction . the vibration of the pipe is obviously suppressed by the damper , at least 25 % 本文采用理论分析和实验相结合的方法，研究了蜂窝孔这种结构因素对橡胶阻尼材料阻尼性能的影响。在自行设计、制作的悬臂式阻尼测试实验装置上，对蜂窝式橡胶阻尼器的阻尼性能进行了大量的实验测试，初步找出了蜂窝孔孔径、孔数以及预压缩量等因素与阻尼器阻尼性能的关系。本文利用实验研究的结论，设计了一种专用的蜂窝式橡胶阻尼器，并应用于某厂螺杆压缩机进口管道的减振，取得了明显的减振效果。
Analyzing the effects towards residual stress from different rolling loadcase , the value of cold rolling residual stress caused by different compress was gotten ; analyzing parameters stretching toward different rolling loadcase board , the effect of the residual stress elimination influenced by stretching force and stretching deformation was figured out 通过分析不同轧制工况对残馀应力分布的影响，得到不同压缩量对轧制残馀应力的影响； ?对不同轧制工况后的板材进行参数拉伸，得到拉伸力大小、拉伸变形量大小对残馀应力消除效果的影响值。
The paper introduces a multiparameters static load test method . compared with a routine test , the bottom and the top settlements can be observed by this method and multiparameters are aquired . based on these parameters , we can get a generally analysis on the elastic - plastic compression of the pile , the side bearing and the bottom bearing as well as the properties of the soil under pile 介绍了一种既观测桩顶沉降又观测桩端沉降的桩身压缩量的实测方法，区别于常规的静载荷试验，该静载荷试验能够提供多方面的参数，可以对桩身弹性压缩量、侧阻、端阻的发挥程度、桩端持力层性状有一个比较全面的了解。
Since piles are set into a composite foundation under an embankment it can not be directly analyzed in the plane strain way . to compute its settlement , a representative segment method is developed and used in settlement analysis of composite foundation under embankment . compared with the traditional plane strain method that needs to unreasonably suppose piles as walls , the representative segment method is more reasonable 根据桩侧摩阻力的解析解，给出了加固区压缩量的简化算法；采用典型段法对复合地基沉降影响因素进行了三维有限元分析，避免了平面应变分析方法中对复合地基中桩体的不合理换算，以使计算模型在力学概念上更合理。
