黄土土壤改良。实验室试验和道路工程应用

IF 0.1 Q4 ENGINEERING, CIVIL Romanian Journal of Transport Infrastructure Pub Date : 2019-07-01 DOI:10.2478/rjti-2019-0003
C. Nguyen, C. Burlacu, I. Boți
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引用次数: 0

摘要

摘要湿敏土或湿陷性土是指具有高孔隙率的材料,在上部结构传递的荷载作用下,甚至在其自重作用下,一旦土壤饱和,就会产生额外的沉降。这一类别包括黄土沉积物和其他孔隙率不均匀的高含泥量土壤。在这些土壤上通常使用的一种方法是实现局部黄土材料压实柱。一方面,本文提出了实验实验室程序,旨在实现局部材料(黄土)和不同其他材料(砂、膨润土、水泥)的一些最佳混合物,以提高土壤的力学参数值,从而限制沉降。另一方面,它为不同的案例场景提供了大量的结算计算。
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Loessoid Soils Improvement – Laboratory Tests and Road Engineering Applications
Abstract Moisture-sensitive or collapsible soils are materials with high porosity that under the loads transmitted by the superstructure or even under its own weight present additional settlements once the soil is saturated. This category includes loess deposits and other high silt content soils with uneven porosity. A method often used for foundation on these soils is the realization of local loessoid material compacted columns. This paper presents, on one hand, the experimental laboratory programs aiming to achieve some optimal mixtures of local material (loess) and different other materials (sand, bentonite, cement) in order to improve the values of the mechanical parameters of the soil and so, to limit the settlements. On the other hand, it presents a lot of settlement calculations for different case scenarios.
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10 weeks
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