2024-03-28T08:35:12Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/715832022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Influence of freeze-thaw action on hydraulic behavior of unsaturated volcanic coarse-grained soils1000060359479Ishikawa, TatsuyaTokoro, TetsuyaMiura, Seiichiopen access© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 InternationalFreeze-thaw testingParticle breakageWater retentivityPermeabilityUnsaturated soilVolcanic coarse-grained soil511This study aims to evaluate the effects of freeze-thaw action on the water retention-permeability characteristics of volcanic coarse-grained soils under unsaturated conditions, in order to examine the hydraulic behavior of volcanic soil during the snow-melting season. In this study, a series of water retention, permeability, and slaking tests on three types of crushable volcanic coarse- grained soils, differing in their degrees of particle crushability, were performed under various degrees of saturation and various freeze-thaw histories, while comparing the test results with those of non-crushable sand. Based on the experimental results, the effects of freeze-thaw action on the water retentivity, permeability, and particle breakage were examined. The test results indicated that freeze-thaw action has strong influence on the hydraulic behavior of crushable volcanic coarse-grained soils under unsaturated conditions, even if the soil is a non-frost- susceptible geomaterial.The Japanese Geotechnical society2016-10engjournal articleAMhttp://hdl.handle.net/2115/71583https://doi.org/10.1016/j.sandf.2016.08.0050038-0806Soils and foundations565790804https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/71583/1/SF14-1j.pdfapplication/pdf2.61 MB2016-10