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| GCL与CCL复合衬垫的等效性分析 | |
| 引用本文： | 何俊,夏彩虹,胡景山.GCL与CCL复合衬垫的等效性分析[J].水文地质工程地质,2007,34(3):102-106,125. |
| 作者姓名： | 何俊 夏彩虹 胡景山 |
| 作者单位： | 1. 湖北工业大学土木工程与建筑学院,武汉,430068 2. 中交第二航务工程勘察设计院,武汉,430071 3. 吉林省勘察地球物理研究所,长春,130012 |
| 摘 要： | 土工合成材料粘土衬垫(GCL)与土工膜(GM)形成的复合衬垫在垃圾填埋场中的应用日益广泛。我国规范中允许在特殊情况下用GCL代替压实粘土(CCL)做垃圾填埋场的衬垫,但是对于“特殊情况”没有明确说明。本文采用数值方法对复合衬垫中无机污染物的对流和扩散进行了计算,从衬垫底部污染物通量和累积量两个角度对GCL复合衬垫和CCL复合衬垫阻滞污染物运移的效果进行了比较,分析两种复合衬垫的等效性,并研究了GCL复合衬垫的适用范围。结果表明,当渗滤液水头较高时,GCL复合衬垫体现出其优势。 |
| 关 键 词： | 土工合成材料粘土衬垫 复合衬垫 等效性 |
| 文章编号： | 1000-3665（2007）03-0102-05 |
| 修稿时间： | 2006-10-242006-12-10 |
Equivalence analysis of GCL and CCL composite liner |
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| He Jun,Xia Cai-hong,Hu Jing-shan.Equivalence analysis of GCL and CCL composite liner[J].Hydrogeology and Engineering Geology,2007,34(3):102-106,125. | |
| Authors: | He Jun Xia Cai-hong Hu Jing-shan |
| Institution: | College of Civil and Architectural Engineering, Hubei University of Technology, Wuhan 430068, China ; The second investigation and design institute China transportation engineering, Wuhan 430068, China; Exploration and geophysical institute of JiLin proinee, Changchun 130012, China |
| Abstract: | Composite liner,composed of GCL and GM,is more and more widely used in landfill.While the criterion permits GCL used as a substitute of CCL in particular cases,the cases are not definite.The convection and diffusion of inorganic contaminant through composite liner were calculated numerically.The effect of GCL composite liner and CCL composite liner was compared between mass flux and accumulated contamination mass at base of the liner,and the equivalence of the two liners was analyzed.The scope of application of GCL composite liner was studied.When the leachate head is high,GCL composite liner takes on its advantage. |
| Keywords: | GCL composite liner equivalent |
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