Analysis of the geo-environmental properties of fine-grained soils based on freezing tests

基于冻结试验的细粒土地质环境特性分析

• 批准号: 22560501
• 负责人: ITO Yuzuru
• 金额: $ 2.83万
• 依托单位: Setsunan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560501/
• 关键词: 凍結試験; 細粒土; 透水係数; 一軸圧縮強さ; 凍結間隙比; 未凍結間隙比; 自由水; 吸着水; Kozeny-Calman式; 凝固点温度; 環境地盤; 土壌汚染; 建設汚泥; 凍結試験; 細粒土; 透水係数; 一軸圧縮強さ; 凍結間隙比; 未凍結間隙比; 自由水; 吸着水; Kozeny-Calman式; 凝固点温度; 環境地盤; 土壌汚染; 建設汚泥

The engineering properties of saturated fine-grained soils are important to the design on soft grounds and to the effective utilization of sludge for construction. A hypothesis was proposed that the engineering properties of fine-grained soil might be interpreted from its behavior in a freezing process. Based on the test results, the following conclusions were obtained.(1)The permeability of fine-grained soils appears to be governed by the pore water expressed as a frozen void ratio rather than the total pore water.(2).The adsorbed water expressed as an unfrozen void ratio might be work as a part of the soils but has no influence over them.

饱和细颗粒土壤的工程特性对于在柔软的地面和有效利用污泥进行建设方面很重要。提出了一个假设，即在冻结过程中可以从其行为中解释细粒土壤的工程特性。基于测试结果，获得了以下结论。（1）细粒土壤的渗透性似乎受孔隙水的控制，该孔隙水以冷冻的空隙比而不是总孔隙水。（2）。被吸附的水表示为脱发的空隙，可能是土壤的一部分，但没有影响它们的一部分。