环境工程 2002 Vol.20 No.3 P.55-59
COMPARISION OF TWO KINDS OF COMPOSITE IMPERVIOUS SYSTEMS USED IN SOLID WASTE LANDFILLS
周正兵 王钊 费香泽
摘 要:土工膜(GM)+压实性粘土(CCL)的复合防渗层在固体废物填埋场的防渗系统中已较为常用,它的防渗效果比单独的GM或CCL要好得多;但是,这种复合防渗层也存在着一些缺陷.GM+GCL是一种革新的复合防渗系统,其中的GCL是对CCL一种有效的替代.本文从一般情况下透过复合防渗层的渗漏量、GM与GCL或CCL的接触情况、冻融和不均匀沉降的影响,施工简易程度、节约成本六个方面对2种复合防渗层作了较为全面的比较.并结合工程实例,对2种复合防渗层用于填埋场封顶系统的情况作了具体的比较.
关键词:固体废弃物填埋场 复合防渗层 土工膜 压实性粘土 土工合成材料粘土垫
分类号:X799 文献标识码:B
基金项目:水利部科技推广中心资助项目成果
作者简介:周正兵,男,25岁,硕士研究生.
作者单位:周正兵(武汉大学土木建筑工程学院,武汉,430072)
王钊(清华大学水利系,北京,100084)
费香泽(武汉大学土木建筑工程学院,武汉,430072)
参考文献:
[1]Giroud, J. P. and Bonaparte, R. Leakage Through Liners Constructed with Geomembranes-Part Ⅱ: Composite Liners. Geotextiles and Geomembranes, 1989.8 (2): 77 ~ 11.
[2]Laine, D. L. Analysis of Dinhole Seam Leaks Located in Geomembranes using the Electrical Leak Location Method: Case Histories, Proc. of Geosynthetics' 91, Atlanta, USA, 1991. ( 1 ): 239 ~ 252.
[3]Koerner, R, M. Geosythetic Clay Liners, Part one: An overview, Geotechnical Fabrics Report, 1996.14(4) :22 ~ 25.
[4]Koemer, R. M. Designing with Geosynthetics(4th). U. S. A., 1998.
[5]Giroud, J. P. Badu-Tweneboah, K. and Bonaparte, R. Rate of Leakage through a Composite Liner due to Geomembrane Defects, Geotextiles and Geomembranes, 1991.11 ( 1 ): 1 ~ 28.
[6]Markswyka, P. E., Jimolsta, Roncotton, G. E. GM/GCI Composite Final Cover for a Hazardous Waste Landfill. Geosynthetics Conference 2001. 859~ 870.
[7]Hewitt, R. D. and Daniel, D. E. Hydraulic conductivity of Geosynthetic Clay Liners after Freeze-Thaw. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 1997. 127(4) ,305 ~ 313.
[8]Kraus, J. F., Benson, C. H. and Charmberlain, E. J. Freeze-Thaw cycling and hydraulic conductivity of Bentonitic barriers. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 1997.127 (3): 229 ~ 238.
[9]Erickson,A.,Chamberlain, E.,and Benson,C. Effects of frost action on covers and liners constructed in cold environments. Proc., 17th Int. Madison Waste Conf., Dept. of Engrg. Prof. Devel., Univ. of Wisconsin-Madison,Madison, Wis., 1994.198 ~ 220.
[10]Koerner, R. M. and Daniel, D. E. evaluation of the Contact Between Geosynthetic Clay Liners and Geomembranes in Terms of Transmissivity,7th GRI Conference: Geosynthetic Liner Systems; Innovations, Concerns and Designs, Geosynthetic Research Institute, Phildelphia, PA, USA, December 1993. 255 ~ 275.
[11]LaGatta, M. D., Boardman B. T., Cooley, B. H. and Daniel, D. E.Geosynthetic Clay Liners subjected to differential settlement. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 1997.123 (5): 402~ 410.
