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http://dx.doi.org/10.7474/TUS.2018.28.6.635

Behaviour of Ground Anchor According to Period Characteristic of Seismic Load Using Numerical Analysis  

Oh, Dong-Wook (Department of Civil Engineering, Seoul National University of Science and Technology)
Jung, Hyuk-Sang (Department of Railroad Construction and Safety Engineering, Dongyang University)
Yoon, Hwan-Hee (Department of Railroad and Civil Engineering, Dongyang University)
Lee, Yong-Joo (Department of Civil Engineering, Seoul National University of Science and Technology)
Publication Information
Tunnel and Underground Space / v.28, no.6, 2018 , pp. 635-650 More about this Journal
Abstract
Many people have been recognized that the Korean Peninsula is no longer safe area from the earthquake by the recent earthquakes occurred in the country. The earthquakes that occurred at Pohang and Gyeongju appeared differently from them considered in the seismic design and researches on the seismic design method have been also conducted by many researchers. Studies on seismic loads are mainly focused on existing superstructures, and research involving them has been actively carried out in reality. However, paper regarding structural stability of reinforcement from seismic load such as soil-nails, rock-bolts, ground anchors which were constructed to ensure stability of serviced structure have been published rarely. In this study, ground anchor been effected by static load and seismic load which is settled in the weathered rock is analyzed. Results for static load are obtained from field test and seismic load is from numerical analysis. In this study, the behavioral characteristics of the ground anchor were analyzed by numerical analysis in case of seismic loading based on the result of the in-situ tensile test of the ground anchor settled weathered rock. As a result, settlement of concrete block due to application of tension force for ground anchor occurred as well as following loss of axial force for ground anchor. Also, as bond length and period of seismic load are longer, increasement of displacement is greater.
Keywords
Ground anchor; Seismic load; Period; Field test; Numerical analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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