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http://dx.doi.org/10.7843/kgs.2014.30.2.5

An Experimental Study on Pullout Behavior of Shallow Bearing Plate Anchor  

Hong, Seok-Woo (Dept. of Civil Eng., DongEui Univ.)
Kim, Hyung-Kong (Dept. of Civil Eng., DongEui Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.30, no.2, 2014 , pp. 5-18 More about this Journal
Abstract
Depending on the underground load support mechanism, anchors are classified as friction anchors, bearing plate anchors and the recently developed combined friction-bearing plate anchors which combine the characteristics of both the friction and bearing plate type anchors. Even though numerous studies have been performed on bearing plate anchors, there were only few studies performed to observe the failure surface of bearing plate anchors. Furthermore most of the soil materials used on these tests were not real sand but carbon rods. In this study, sand was placed in the soil tank and laboratory tests were performed with bearing plate anchors installed with an embedment depth (H/h) ranging from 1~6. The variation in the pullout capacity and the behaviour of soil with the embedment depth (H/h) were observed. Ground deformation analysis program was also used to analyze soil displacement, zero extension direction, maximum shear strain contours. It was determined from the analysis of the results that at ultimate pullout resistance the deformation was 5 mm and the failure surface occurred in a narrower area when compared with results of the previous researches. It was also observed that the width of the fracture surface gradually becomes wider and expands up to the surface as the deformation increases from 10 mm to 15 mm.
Keywords
Friction anchor; Plate anchor; Embedmet ratio; Ultimate pullout resistances; Zero extension direction; Shear strain contours;
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