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http://dx.doi.org/10.7843/kgs.2018.34.11.5

Suggestion of Analytical Technique Applying Multi-Linear Models for Analysis of Skin Shear Behavior of Tension-Type Ground Anchors in Weathered Soil  

Jeong, Hyeon-Sik (Raon Structural Engrg., Co. Ltd.)
Lee, Yeong-Saeng (Dept. of Civil Engrg., Kyonggi-Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.11, 2018 , pp. 5-19 More about this Journal
Abstract
The characteristics of the skin shear stress distribution for the fixed length of the ground anchor are extremely nonlinear and the engineering mechanisms are complex relatively. So it is difficult to design the anchors simulating the actual behavior by considering various soil conditions and nonlinear behavior. Due to these limits, constant skin shear stress distributions for the whole fixed length of the ground anchor are usually assumed in the design for the sake of convenience. In this study, to assess the pull-out behavior of the tension-type ground anchors, the in-situ pull-out tests in weathered-soil conditions were carried out. Based on the test results, the skin shear behaviors for the fixed length of tension-type ground anchors were established and the multi-linear slip shear model predicting this behavior and an analytical technique applying this model were proposed. From the similarity between the results of the in-situ pull-out tests and those of the analytical technique, the applicability and availability of the multi-linear slip shear model and the proposed analytical technique were verified. The maximum shear stress was developed at the start point of the fixed length acting with the smaller load than the maximum pull-out load but the minimum shear stress was developed at the start point of the fixed length and the maximum shear stress was developed at the point apart from the start point of the fixed length after the maximum pull-out load.
Keywords
Tension-type ground anchors; Multi--linear slip shear model; Analytical technique; Pull-out test; Fixed length;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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