1) curve-pattern compaction
曲线型式压缩法
2) curve fitting campaction
曲线拟合压缩法
3) compression curve
压缩曲线
1.
The sedimentation compression lines of natural clays, intrinsic compression lines of reconstituted clays and oedometer compression curves can be normalized by a void index, then the difference of the structural clays and reconstituted clays as well as the gradual damage course of soil structure are showed apparently.
用孔隙指数来归一化天然粘土的沉积压缩曲线、重塑土的压缩曲线和固结仪压缩曲线 ,可以很清晰地揭示出结构性土与重塑土的内在差别、固结仪试验中土体结构性的渐进破坏过程 。
2.
Its compression curve is similar to that of over consolidated soil.
其压缩曲线呈现出超固结土的压缩曲线形式。
3.
The test results show that the compression curves present a bilinear shape, which is different from that of ordinary normal consolidated clays.
试验结果表明,饱和膨润土的压缩曲线呈双线性,不同于普通黏土的压缩曲线。
4) Curve compressive method
曲线压缩
5) compressive curve
压缩曲线
1.
The compressive behavior designated by compressive curve of the soil,which was originally proposed by Lyakhov,is modified in this paper in order to fit the experimental results at low pressures,higher pressures,very high pressures and unloading condition.
土壤的压缩曲线最初是由梁霍夫提出的。
2.
The soil-water characteristic curve and compressive curve of the unsaturated and undisturbed loess were obtained by which the first group test to control the vertical pressure for a constant while matric suction increased by step and the second group test to control the matric suction for a constant while vertical pressure increased by step.
第一组试验为分别控制竖向应力为4个不同的定值,而后吸力逐级加大;第二组试验为分别控制吸力为2个不同的定值,而后竖向应力逐级增大,得到了原状黄土的土-水特征曲线和压缩曲线。
6) compressive curvature (of a nozzle)
压缩曲线段
补充资料:曲线拟合
曲线拟合 curve fitting 用连续曲线近似地刻画或比拟平面上离散点组所表示的坐标之间的函数关系的一种数据处理方法。用解析表达式逼近离散数据的一种方法。在科学实验或社会活动中,通过实验或观测得到量x与y的一组数据对(xi,yi)(i=1,2,…m),其中各xi是彼此不同的 。人们希望用一类与数据的背景材料规律相适应的解析表达式,y=f(x,c)来反映量x与y之间的依赖关系,即在一定意义下“最佳”地逼近或拟合已知数据。f(x,c)常称作拟合模型 ,式中c=(c1,c2,…cn)是一些待定参数。当c在f中线性出现时,称为线性模型,否则称为非线性模型。有许多衡量拟合优度的标准,最常用的一种做法是选择参数c使得拟合模型与实际观测值在各点的残差(或离差)ek=yk-f(xk,c)的加权平方和达到最小,此时所求曲线称作在加权最小二乘意义下对数据的拟合曲线。有许多求解拟合曲线的成功方法,对于线性模型一般通过建立和求解方程组来确定参数,从而求得拟合曲线。至于非线性模型,则要借助求解非线性方程组或用最优化方法求得所需参数才能得到拟合曲线,有时称之为非线性最小二乘拟合。 |
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参考词条