Free-Swell and Swelling Pressure of Unsaturated Compacted Clays; Experiments and Neural Networks Modeling |
| |
| Authors: | Iman Ashayeri Shahabodin Yasrebi |
| |
| Institution: | (1) Geotechnical Research Center, International Institute of Earthquake Engineering and Seismology, Tehran, 19395-3913, Iran;(2) Civil Engineering Department, Tarbiat Modares University, Tehran, Iran |
| |
| Abstract: | 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. |
| |
| Keywords: | Collapse potential Compacted clays Expansive soils Neural networks Swelling pressure Unsaturated soils |
| 本文献已被 SpringerLink 等数据库收录！ |
