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首页> 外文期刊>International journal of soil science >Modelling Water-Induced Compaction of the Saalian Glacial till in Lower Lusatia
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Modelling Water-Induced Compaction of the Saalian Glacial till in Lower Lusatia

机译：在下卢萨西亚下水对萨利期冰川的压实建模

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The objective of this study is to understand the water induced consolidation process at agriculturally used reclaimed soil. The approach of the study is to reproduce the situation occurring when the soil is subjected to water induced compaction at defined loads typical in the top soil (0 to 20 kPa). The water induced compaction process is characterized by sudden change in the voids or pores of the soil that are loaded at their natural water content and flooded. Compression properties are measured with Oedometer tests using sieved sandy loam, taken from a non weathered Saalian glacial till layer, as the meta-stable test soil. Pre-consolidation load calculated for the dry samples overestimated the simulated overburden pressure, whereas, the wetted samples showed a high congruence. In both cases, the point of greatest curvature estimated in the earlier step of deviation gave values that are more realistic to the loads from which the unloading started. The results indicated that both dry compaction andwater-induced compaction induce primarily plastic deformation.
机译：这项研究的目的是了解农业用复垦土壤中水诱导的固结过程。该研究的方法是重现当土壤在表土（0至20 kPa）中典型的规定载荷下受到水致密实时发生的情况。水致密实过程的特征是土壤的孔隙或孔隙突然变化，这些孔隙或孔隙以自然含水量加载并被淹没。压缩特性通过Oedometer测试使用筛分的沙壤土（来自未风化的萨利亚冰川耕层）作为亚稳定的测试土壤进行测量。为干样品计算的预固结载荷高估了模拟的上覆压力，而湿样品显示出较高的全同。在这两种情况下，在偏差的较早步骤中估计的最大曲率点所给出的值对于开始卸载的负载而言更为真实。结果表明干压实和水致压实都主要引起塑性变形。

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