| 渗透条件对膨润土改性黄土渗透系数的影响 |
| |
| 引用本文： | 赵天宇,张虎元,严耿升,吴军荣,刘吉胜. 渗透条件对膨润土改性黄土渗透系数的影响[J]. 水文地质工程地质, 2010, 37(5): 108-112 |
| |
| 作者姓名： | 赵天宇 张虎元 严耿升 吴军荣 刘吉胜 |
| |
| 作者单位： | 兰州大学西部灾害与环境力学教育部重点实验室;中国市政工程西北设计研究院有限公司; |
| |
| 基金项目： | 国家自然科学基金资助项目，中国建筑股份有限公司资助项目 |
| |
| 摘 要： | 室内采用柔性壁渗透仪实测了膨润土改性黄土的渗透性能,分别在控制渗透时间、围压和渗透压等条件下探究了各自对改性黄土渗透系数的影响。研究表明,试验初期试样的渗透系数在同一数量级上有较大波动,随着持续时间增加渗透系数趋于稳定,稳定后几乎不随时间发生变化,增大围压和渗透压都可以引起改性黄土渗透系数在同一数量级上降低。因此,在填埋场设计时可以通过预测防渗衬里的围压和渗透压来预留渗透系数的安全储备。
|
| 关 键 词： | 改性黄土 渗透系数 围压 渗透压 |
Influence of penetrative conditions on permeability of modified loess soil by bentonite |
| |
| ZHAO Tian-yu,ZHANG Hu-yuan,YAN Geng-sheng,WU Jun-rong,LIU Ji-sheng. Influence of penetrative conditions on permeability of modified loess soil by bentonite[J]. Hydrogeology and Engineering Geology, 2010, 37(5): 108-112 |
| |
| Authors: | ZHAO Tian-yu ZHANG Hu-yuan YAN Geng-sheng WU Jun-rong LIU Ji-sheng |
| |
| Affiliation: | 1.Lanzhou University,Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education,Lanzhou 730000,China;,,,,2.China Northwest Municipal Engineering Design Institute Co.,Ltd.,Lanzhou 730000,China |
| |
| Abstract: | The process stress of sanitary landfill is changing constantly in use,which will cause the penetrative conditions to change in landfill liner.It is of great realistic significance to explore the influence of these changes on the seepage performance of landfill liner.The permeability of modified loess soil by bentonite was tested with a flexible-wall permeameter,and the impact on coefficient of permeability of the modified loess soil was investigated under different conditions of penetration time... |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《水文地质工程地质》浏览原始摘要信息 |
|
点击此处可从《水文地质工程地质》下载免费的PDF全文 |
|
