Next Article in Journal
Wear Debris Characterization and Corresponding Biological Response: Artificial Hip and Knee Joints
Previous Article in Journal
Role of SiNx Barrier Layer on the Performances of Polyimide Ga2O3-doped ZnO p-i-n Hydrogenated Amorphous Silicon Thin Film Solar Cells
Open AccessArticle

Effects of Particle Size on the Shear Behavior of Coarse Grained Soils Reinforced with Geogrid

Department of Civil Engineering, College of Engineering, Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju 501-759, Korea
*
Author to whom correspondence should be addressed.
Materials 2014, 7(2), 963-979; https://doi.org/10.3390/ma7020963
Received: 8 December 2013 / Revised: 2 January 2014 / Accepted: 20 January 2014 / Published: 7 February 2014
In order to design civil structures that are supported by soils, the shear strength parameters of soils are required. Due to the large particle size of coarse-grained soils, large direct shear tests should be performed. In this study, large direct shear tests on three types of coarse grained soils (4.5 mm, 7.9 mm, and 15.9 mm) were performed to evaluate the effects of particle size on the shear behavior of coarse grained soils with/without geogrid reinforcements. Based on the direct shear test results, it was found that, in the case of no-reinforcement, the larger the maximum particle size became, the larger the friction angle was. Compared with the no-reinforcement case, the cases reinforced with either soft geogrid or stiff geogrid have smaller friction angles. The cohesion of the soil reinforced with stiff geogrid was larger than that of the soil reinforced with soft geogrid. The difference in the shear strength occurs because the case with a stiff geogrid has more soil to geogrid contact area, leading to the reduction in interlocking between soil particles. View Full-Text
Keywords: direct shear test; geogrid; reinforcement effect; shear behavior; coarse grained soils direct shear test; geogrid; reinforcement effect; shear behavior; coarse grained soils
MDPI and ACS Style

Kim, D.; Ha, S. Effects of Particle Size on the Shear Behavior of Coarse Grained Soils Reinforced with Geogrid. Materials 2014, 7, 963-979.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop