標題: Effect of gravel subgrade on hydraulic performance of geosynthetic clay liner
作者: Shan, HY
Chen, RH
土木工程學系
Department of Civil Engineering
關鍵字: geosynthetic clay liner;gravel;subgrade;landfill
公開日期: 1-Dec-2003
摘要: The effect of a gravel subgrade on the hydraulic performance of GCLs is investigated. Laboratory test results show that the GCL specimens exhibit significant variation in thickness when compressed against gravel. The maximum and minimum thicknesses of the specimen were about 20 and 3 mm, respectively, after consolidation by an effective stress up to 138 kPa. However, the permittivity of GCLs remained very low. The permittivity of both needle-punched and adhesive-bonded geotextile-supported GCLs decreased with increasing confining stress, regardless of the type of subgrade materials. In general, larger particles led to more significant migration of bentonite. Nevertheless, there was no significant difference in the degree of bentonite migration between the two GCLs investigated. (C) 2003 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/S0266-1144(03)00043-8
http://hdl.handle.net/11536/27361
ISSN: 0266-1144
DOI: 10.1016/S0266-1144(03)00043-8
期刊: GEOTEXTILES AND GEOMEMBRANES
Volume: 21
Issue: 6
起始頁: 339
結束頁: 354
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