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Modification of Consolidation Characteristics of Dredged Clay with Dispersing Agent and Its Applicability as a Volume Reduction Technique
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kuwahara, Takuma Mitarai, Yoshio Mukunoki, Toshifumi Hiro, Kaede Miyauchi, Riku |
| Copyright Year | 2018 |
| Abstract | The method proposed here attempts to modify consolidation characteristics of cohesive soils by chemical action at the interface between soil particles and pore water. In this paper, a series of laboratory experiments was carried out using dredged clay with dispersing agents to evaluate the potential as a volume reduction technique. The experimental work shows that (1) liquid limit wL of the modified soil falls by up to 15% compared to wL of the original soil; (2) f – logp curves of the modified soil are plotted below f – logp curves of the original soils, which means the volume of the modified soil is smaller than the original soils under the same overburden pressure; (3) volume ratio f at the consolidation yield stress pc decreases by 4.7~6.7%. In addition, a trial calculation was carried out based on one-dimensional consolidation theory to simulate the amount and the process of settlement at a hypothetical disposal site. The calculation indicates the volume of the modified soil is reduced compared with the original soil, and therefore the work life of the disposal site becomes longer. |
| Starting Page | 79 |
| Ending Page | 82 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.2472/jsms.67.79 |
| Volume Number | 67 |
| Alternate Webpage(s) | https://www.jstage.jst.go.jp/article/jsms/67/1/67_79/_pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
