fine grained sand

The authors discussed the procedures for dewatering the fine tail sand after analyzing the feature of the sand,water and water force,as well as the relations between permeability and time for dewatering.

从尾砂的特征、含水性质及水力学关系,导出尾砂渗透系数值与脱水所需时间的关系公式,阐述细粒尾砂脱水的工艺措施。

The subgrade fill of some reaches of Qin-Shen Special Passenger Line consists of clean, round and poorly graded fine sand.

笔者从理论和实践上对匀粒细砂改良的必要性、文献[1]双指标控制标准等问题提出了质疑,揭示和阐述了匀粒细砂K30值偏小的内在原因和填料强度随填筑深度的变化规律。

The deformation characteristics and the plastic-loop of the fine-sandstone is studied under the loading and(unloading) condition at the three different deformation-rates and the two different stress-levels,the results show: 1) There is really the plastic-loop in the deformation curve for the loading deformation curve is different form the unloading deformation curve.

通过对循环载荷条件下细粒砂岩在不同载荷水平、不同位移速率时的变形特性及其塑性滞回环演化规律的分析发现:1)循环载荷条件下岩石的加、卸载曲线不重合,将形成一封闭的塑性滞回环,该塑性滞回环从第2循环起将趋于稳定;2)不同载荷水平和不同位移速率下第1循环时的各拟合参数值与第2循环相比存在有较大变化,但从第2循环曲线起,各拟合参数均将逐渐趋于恒定;3)随着位移速率和载荷水平的变化,其拟合参数将随之而发生变化;4)在相同位移速率和相同载荷水平条件下,同一次循环时岩石变形曲线的加载段与卸载段的相应拟合参数值不同。

The deformation characteristics of the fine-sandstone is studied under the loading and unloading conditions at the three different deformation-rates and the two different stress-levels.

通过对细粒砂岩在不同位移速率、不同载荷水平时循环加、卸载条件下变形的演化规律的实验研究发现,细粒砂岩在循环加、卸载条件下的卸载曲线与加载曲线不相重合,将形成一封闭的塑性滞回环,且该塑性滞回环从第2次循环起几乎不发生变化。

Experimental Research on the Evolution of Hysteresis Curve of Fine-sandstone with Different Water Saturation;

通过周期性循环载荷作用下的烘干、自然干燥、饱水等3种不同水饱和度时细粒砂岩变形特性及其滞回曲线演化规律的实验研究,分析结果发现随着岩石含水量的不断增加,岩石的强度、变形及其弹性模量将随之减小,每次循环形成的滞回曲线的变化有越加明显的演化趋势,但是随着循环次数的增加各个应变相对残余变量均逐渐趋于稳定。

Strength Properties and Steady-State Behavior of Sandy Soil;

含细粒砂土的强度特征与稳态性状研究

Minute rough granules, as of sand or stone.

砂，砂砾，砂粒细小的粗颗粒，如砂和石头粒

grit size, grit number

[砂纸]粒度号数,粗细

Three kinds of state of arscnopyrite are developed at the deposit, i. e. corse-grained arsenopyritc, veinlet arsenopyrite and arsenopyrite-bearing quartz vein, and fine-grained disseminated arsenopyrite.

毒砂可划分为大颗粒毒砂、细脉状及毒砂石英脉中的毒砂和细粒浸染状毒砂三种性状.

These particles range from coarse silt to sand or pebble size.

这些颗粒的大小变化范围是从粗粉砂级到砂级或细砂级。

These may range from coarse silt to sand or peble size.

这些颗粒的大小变化范围，从粗粉砂级到砂级或细砂级。

The texture or fineness of sand or stone used in grinding.

粒度，硬度用作磨料的砂或石的精细度

a fine-grained sandstone of consolidated silt.

一种细颗粒的砂岩，由固化的泥沙形成。

Effect of fines content on liquefaction properties of saturated silty sands

细粒含量对饱和砂土液化特性的影响

Mesomechanical analysis of characteristics of dry sands in response to dynamic compaction with PFC~(2D)

干砂强夯动力特性的细观颗粒流分析

Experimental study on influence of clay particle content on liquefaction of Nanjing fine sand

粘粒含量对南京粉细砂液化影响的试验研究

Engineering Behaviors and Fine Content Effect of Unsaturated Sandy Soil

非饱和砂土工程性状的细粒效应试验研究

Experiment Study on Surface Profile Character of Ultra-fine Grits Wheel after Dressing

超细磨粒砂轮修整后表面轮廓特征的实验研究

The application of pig manure resulted in the increase of the enrichment coefficients of SOC and TN in coarse sand, while the decrease in clay fraction, especially in coarse clay.

粗砂粒中有机碳、总氮的富集系数升高,黏粒(尤其是细黏粒)中富集系数降低;

Fine-grained feldspar sandstone is the main oil-bearing rock and chlorite is the dominant kind of clay minerals.

研究结果表明，长2油藏含油砂岩以细粒长石砂岩为主，粘土矿物中绿泥石含量较高。

Grey correlation analysis of particle size distribution of CFBC fly ash and its mortar strength

磨细CFBC脱硫灰的粒度分布与其胶砂强度的灰色关联分析

②the composition of grade are sand 44.75%,silt 31% and clay soil 24.25%;

②粒级构成:砂44.75%,粉砂31%,黏土24.25%;

(2) The composition of grade is as follows: sand 44.75%, silt 31%, and clay soil 24.25%.

(2)粒级构成为：砂44.75％，粉砂31％，黏土24.25％；