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| 冻融作用对膨润土防渗毯防渗特性的影响 | |
| 引用本文： | 周春生,史海滨,于 健.冻融作用对膨润土防渗毯防渗特性的影响[J].农业工程学报,2012,28(5):95-100. |
| 作者姓名： | 周春生 史海滨 于 健 |
| 作者单位： | 1. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018;内蒙古财经学院资源与环境经济学院,呼和浩特010051 2. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018 3. 内蒙古水利科学研究院,呼和浩特,010010 |
| 基金项目： | 国际科技合作重点计划项目（2008DF70880）；国家农业转化资金项目（2010GB2A400060）；国家科技支撑项目（2007BAD88B04）；内蒙古农业大学科技创新团队资助计划。 |
| 摘 要： | 为研究膨润土防渗毯(Geosynthetic Clay Liner)在寒旱区渠道衬砌应用中的防渗性能,该文采用室内模拟方法对3种膨润土防渗毯(分别为韩国、中国生产,编号为1#、2#、3#)的抗冻特性进行了研究,结果表明:采用黄河水水化31次冻融后,1#、2#、3#膨润土防渗毯自由膨胀体积增加了16.7%、4.5%、8.0%,滤失量降低了31.1%、28.9%、27.0%,屈服值增加了200.0%、23.3%、90.6%。31次冻融循环后滤出液EC值分别降低27.3%、27.0%、31.0%,渗透系数均增加了1个数量级,但渗透系数仍较小,仅为渠床土壤渗透系数的0.35%～0.72%;研究表明,膨润土防渗毯可用于西北干旱盐渍化地区渠道衬砌。 |
| 关 键 词： | 膨润土 剪切应力 试验 冻融循环 滤失量 渗透系数 |
| 收稿时间： | 3/2/2011 12:00:00 AM |
| 修稿时间： | 2011/12/15 0:00:00 |
Effect of freeze-thaw action on geosynthetic clay liner anti-seepage characteristics |
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| Zhou Chunsheng,Shi Haibin and Yu Jian.Effect of freeze-thaw action on geosynthetic clay liner anti-seepage characteristics[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(5):95-100. | |
| Authors: | Zhou Chunsheng Shi Haibin and Yu Jian |
| Institution: | 1.Water Conservancy and Civil Engineering College Inner Mongolia Agricultural University,Inner Mongolia Huhhot 010018,China;2.Resource and Environmental Economics of Inner Mongolia Institute of Finance,Inner Mongolia Huhhot 010070,China;3.Water Resources Research Institute of Inner Mongolia,Hohhot 010020,China) |
| Abstract: | In order to study the seepage control performance of Geosynthetic Clay Liner(GCL) in lining channel in the cold and arid regions,the antifreeze characteristics of three different GCL(produced in Korea and China,1#、2#、3#) were studied with indoor simulation method.The results showed that by hydrating with the Yellow River water and after 31 times of freeze-thaws,the free swelling volume of 1#、2#、3# GCL increased by 16.7%、4.5% and 8.0% respectively;The filtration loss reduced by 31.1%、28.9% and 27.0% respectively;The yield value increased by 200.0%,23.3% and 90.6% respectively,and the EC values of the filtrate reduced by 27.3%、27.0% and 31.0% respectively.The permeability coefficient increased by one order of magnitude,but was still small,which was 0.35-0.72% in canal bed.These indicated the GCL can be used in canal lining in the northwest arid and saline regions. |
| Keywords: | bentonite shear stress expiment freeze-thaw cycle filtrate loss permeability coefficient |
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