粉砂

壤土是由大约等份的黏土、沙和粉砂合成的。

Loam is a soil with roughly equal proportions of clay , sand and silt .

HF孔岩芯沉积物样品中粉砂含量最高，其次是粘土，砂的含量最低。

In core HF , the silt content is the highest , the clay content is the second and the the sand content is the lowest .

南京地区粉砂扁铲侧胀试验（DMT）的应用

Application of Flat Dilatometer Test ( DMT ) to Silty Sand in Nanjing Area

其结论是粉砂的起动规律可以用Shields曲线描述，并得出粉砂起动的判别公式。

The research indicates that the laws of fine sand motion initiation can be described well by Shields curve , and a formula is derived as well .

在粉砂粘壤土上，降水对休闲地和旱地土壤NO-3-N累积的影响主要在0～2m的深度范围；

In silty clay loam , precipitation mainly influenced soil nitrate nitrogen concentration in a depth of 0 ~ 200cm in fallow land and dryland .

磁性矿物在极细砂中的富集大幅减少，而更多富集在粉砂组分中的现象表明了物质来源又一次发生了变化，SD较多出现可能是长江上游玄武岩加入的体现。

The phenomenon that magnetic minerals in the very fine sand fraction reduced substantially , and more concentrated in the silt fractions indicated the change of sediment source once again . More SD magnetic minerals may be from the basalt in the upper of Yangtze River .

水道底质分六类，粘土质粉砂占水道总面积约3/5，主要分布于水深小于40m的浅水区。

The sediment samples reflect the presentation of six types . Clayey silt , a main sediment type distributed over shoal area , accounting for 3 / 5 of the whole area of the channel .

用粉砂壤土土柱进行了为期一年的室内模拟试验，对不同地下水埋深及其矿化度作用条件下0～40cm深度土壤的盐分运动规律进行了深入研究。

Summary A one year indoor soil column simulation experiment was conducted to study salt dynamics in soil ( 0 ~ 40 cm layer ) of silt loam with different groundwater conditions .

BIOENV分析表明，温度、盐度、中值粒径和粘土粉砂含量的组合最能解释不同月份之间和不同站位间的差异，其相关系数为0.614。

The combination of temperature , salinity , medium size and the content of silty and clay could explained the difference using the analysis of BIOENV , and the coefficient were 0.614 .

结果认为，结皮的形成是以细砂和粗粉砂为骨架，以小于0.01mm的细小颗粒填塞土壤空隙的一个物理过程，其腐殖质含量几乎与土壤相同，而碳酸钙含量则略低。

Crust formation is a physical process that the framework formed by fine sand and coarse silt is filled by small grain ( 0.01 mm ) . The content of humus is nearly same as that of soil while the content of CaCO 3 is slightly lower .

结皮的物理特性主要体现在（1）土壤结皮的机械组成以细砂和粗粉砂为主，但总量低于同种对照土壤；小于0.01mm的物理性粘粒结皮含量高于对照；

Characteristic of Crust : ( 1 ) The main composition of soil crust is fine sand and coarse mealy sand , while their contents are lower than comparison soil and the contents of the crust with physically clay ( < 0.01mm ) are higher than comparison soil .

管井群降水在细粉砂土地基中的应用

Tube wells lowering water using in foundation with fine sand soils

武昌地区含粘性土粉砂承载力探讨

Discussion on bearing capacity of clayey silty sand in Wuchang District

粉砂地基中振动沉管灌注桩的几个问题

Some problems of vibro casing cast-in-place pile in silty sand foundation

波浪作用下粘质粉砂底床性态变化的试验研究

Experimental Studies on Behavior Variation of Clay-silt Bed under Wave loading

开敞式航道粉砂骤淤的随机分析

Stochastic Analysis of Sudden Siltation of Silty Sand in Open Channel

粉砂壤土对铵离子的吸附特性

Study on Effect of Adsorbing Ammonium Ion by Sandy Loam Soil

冻结粉砂在常变形速度下的单轴抗压强度

Uniaxial Compressive Strength of Frozen Silt Under Constant Deformation Rates

其中粉砂震动液化问题特别复杂，当前国内外都仅能按统计法则给出经验公式。

Problems of liquefaction of silty sand are especially complex .

波浪作用下海底粉砂液化的机理分析

The Mechanism Analysis of Seafloor Silt Liquefaction under Wave Loads

悬沙颗粒细，粉砂和粘土是悬沙的主要成分，两者含量之和大于99%。

The content of silt and clay accounted for > 99 % .

粉砂侧向变形特性的真三轴试验研究

Study on deformation characteristic of silt by true triaxial test

复合土钉墙在粉砂夹淤泥层软土基坑中的应用

Application of composite soil nailing wall on silt layer soft soil foundation

这些颗粒的大小变化范围，从粗粉砂级到砂级或细砂级。

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

纤维复合无筛管防细粉砂理论研究

Theory of screenless fiber resin-coated sand complex fine-silty sand control

上海浅层粉砂和粉性土液化的探讨

An Inquiry into the Liquefaction of Shallow Soil in Shanghai

而两个时期粉砂和砂的百分含量等值线变化，同样有进有退，较为复杂。

And the change of silt and sand content is also complicated .

塔里木超细粉砂无机保温材料的研制

Development of Inorganic Thermal Insulation Material with Ultrafine Sand of Tarim Desert

淤泥质粘土与粉砂互层土抗剪强度试验研究

Study on Shear Strength Test of Muddy Soil & Silty Interbeded Soil

松粉砂地基地震后堤坝稳定性分析

Post-earthquake stability analysis of dike built on silty sand foundation