Effect of temperature on shear strength of two geomembrane-geotextile interfaces

被引：30

作者：

Akpinar, MV

Benson, CH

机构：

[1] Mustafa Kemal Univ, Dept Civil Engn, Hatay, Turkey

[2] Univ Wisconsin, Dept Civil & Environm Engn, Madison, WI 53706 USA

来源：

GEOTEXTILES AND GEOMEMBRANES | 2005年 / 23卷 / 05期

关键词：

geosynthetics; interface; geomembrane; geotextile; temperature; shear strength; displacement rate;

D O I：

10.1016/j.geotexmem.2005.02.004

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This study was conducted to assess whether temperature affected the shear strength of interfaces between a nonwoven needle-punched polypropylene geotextile (GT) and two high-density polyethylene geomembranes [smooth (GMS) and textured (GMT)]. Testing was conducted using a double-interface shear device (DISD) enclosed in a constant temperature chamber. Tests were conducted at temperatures ranging between 0 and 33 degrees C at normal stresses between 7.5 and 49.5 kPa and with displacement rates between 0.9 and 1.5 mm/min. Only small changes in interface strength were observed for the range of temperatures that was considered. Increasing the temperature from 0 to 33 degrees C resulted in an increase in the peak interface friction angle of 2.9 degrees for the GMS-GT interface and 2.3 degrees for the GMT-GT interface, regardless of the displacement rate. Similar changes were observed for the post-peak friction angle. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：443 / 453

页数：11

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