通常将粗粒含量(大于0.075 mm)不到50%的土称为细粒土。也指颗粒最大粒径不大于4.75mm,公称最大粒径不大于2.36mm的土,包括各种黏质土、粉质土、砂和石屑等。其中,颗粒的最大粒径小于9.5mm,且其中小于2.36mm的颗粒含量不少于90%(如塑性指数不同的各种粘性土、粉性土、砂性土、砂和石屑等)。 细粒土的性质主要取决于连结和密实度,即与黏粒含量、稠度、孔隙比有关。随着黏粒含量的增多,黏性土的塑性、收缩性和膨胀性、透水性、压缩性、抗剪性等有明显变化。
...细土覆盖层 dust mulch 细粒土 fine grained soils ; fines ; finegrained soil ; finetexturedsoil 细粒土填料 FINEGRAINED SOIL FILLER ; finegrained soil fill ; GRAINED SOIL FILLER ; grained soil fill ..
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塑限是细粒土的一个重要特征,它反映了土粒和水相互作用时的性态。
The plastic limit is an important property of fine-grained soils, it reflects the interaction between soil and water.
建立细粒土海床液化程度的模糊综合评判模型,并分析影响液化的主要因素。
The fuzzy comprehensive evaluation model of seabed liquefaction degree was established, and the main parameters that influence liquefaction were analyzed.
在铁道部新的土分类标准中,细粒土由按单纯的塑性指数分类改为按塑性图分类。
In the new classification standard of soil adopted by the Railway Ministry, fine particle soils are classified by plastic index diagram instead of plastic index simply.
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