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http://dx.doi.org/10.9711/KTAJ.2016.18.2.213

Dynamic shear behavior of geosynthetic-soil interface considering thermalchemical factors  

Jang, Dong-In (Department of Civil Engineering, Hanseo University)
Kwak, Chang-Won (Civil&Architecture Design Group, Korea District Heating Engineering Co.Ltd.)
Park, Inn-Joon (Department of Civil Enginnering, Hanseo University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.18, no.2, 2016 , pp. 213-220 More about this Journal
Abstract
The needs for the utilization of space in the urban ara due to the increasing population and traffic volume. A Double-deck tunnel can be an appropriate solution. Geosynthetics are inevitably installed between ground and tunnel lining, therefore, geosynthetic-soil interface is also comprises. Dynamic shear behavior of geosynthetic-soil interface affects the dynamic behavior of tunnel, and experimental study is required since the behavior is very complicated. In this study, chemical factors such as acid and basic element in the groundwater and temperature are considered in the laboratory test. Multi-purpose Interface Apparatus(M-PIA) is utilized and submerging periods are 60 and 960 days. Consequently, dynamic shear degradation of geosynthetic-soil interface considering chemical and thermal factors are verified.
Keywords
Chemical factors; Cyclic simple shear tests; Soil-geosynthetic interface; Dynamic shear behavior; Waste landfill;
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