다중정착 지반앵커의 하중전달 특성에 관한 연구 = A study on the characteristics of multi load transfer ground anchor system

다국어 초록 (Multilingual Abstract)

In order to identify a load transfer mechanism of ground anchors, the behavior of multi load transfer ground anchor systems was investigated and compared with those of compression type anchors and tension type anchors. Large scale model tests were performed and stress-strain relationships were obtained. The load transfer mechanism of ground anchors was also investigated in the field tests. Finally, numerical analyses to predict the load-displacement relationships of anchors were conducted. It is concluded that the load transfer characteristics of MLT anchors are mechanically much more superior in the pull-out resistance effect than those of existing compression and tension type anchors. From the results of research work, we could suggest that the max pull-out capacity of anchor capacity to each the soil condition. Also, the MLT anchors can be used to achieve both structural enhancement and economic construction in earth retaining or supporting structures.

참고문헌 (Reference)

1 Coates, D.F, "Three dimensional stress distributions around a cylindrical hole and anchor" 175-182, 1970

2 British Standards Institution, "The performance of prestressing anchorages for post tensioned construction"

3 SIA. Edition Ground Anchors, "Swiss society of engineers and architects"

4 FIP, "Recommendations for the design and construction of prestressed concrete ground anchor"

5 Civil Engineering Services Department Hong Kong, "Model specification for prestressed ground anchors"

6 Korea Standard association, "KS L ISO679, Methods of testing cements - Determination of Strength"