期刊
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
卷 27, 期 1, 页码 137-153出版社
SPRINGER
DOI: 10.1007/s10706-008-9219-y
关键词
Collapse potential; Compacted clays; Expansive soils; Neural networks; Swelling pressure; Unsaturated soils
Expansive soils have received attentions of several investigators in the past half of century in the problematic soils context. Volume change behavior of unsaturated compacted soils in presence of water and change of degree of saturation was observed in two form of heave or collapse. Low water content and low density compacted soils in presence of enough surcharge pressure lose stability and collapse, because of their metastable and susceptible structure to change of degree of saturation. Free-swell and swelling pressure of five compacted clays, covering low to high plastic clays have been investigated in respect to compaction states and swelling pressure was compared with collapse pressure threshold. The results of experiments were utilized in two Artificial Neural Networks to predict free-swell percent and swelling pressure of a soil sample based on index properties and compaction state.
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