ํ ๋ชฉ์ฌ์ ๋ฅผ ๋ณด๊ฐํ ์ฑํ ์ง์ง๋ง๋(GRPS) ๊ณต๋ฒ์ ์ฐ์ฝ์ง๋ฐ ์๋ถ์ ๊ฑด์ค๋๋ ์ฑํ ๊ตฌ์กฐ๋ฌผ์ ์๋ฅ์นจํ๋ฅผ ์ต์ ํ๊ณ , ๊ณต์ฌ๊ธฐ๊ฐ์ ๋จ์ถํ ์ ์๋ ๋ฐฉ๋ฒ์ผ๋ก ๊ทธ ์ ์ฉ์ฑ์ด ํ๋๋๊ณ ์๋ค. ์ด์, ์ธ๊ณ ๊ฐ๊ตญ์์๋ ๋ค์ํ ์ฐ๊ตฌ๋ฅผ ํตํด ์ค๊ณ๋ฐฉ๋ฒ์ ์ ์ํด์์ง๋ง, ๋์ ํ์ค์ ๊ณ ๋ คํ ์์คํ
์ ๊ฑฐ๋์ ํ์คํ๊ฒ ๊ท๋ช
๋์ง ์์ ์ค์ ์ด๋ค. ๋ณธ ๋
ผ๋ฌธ์์๋ ์ฌ์ ๋ณด๊ฐ ์ง์ง๋ง๋ ์ฑํ ์ฒด๋ด์ ๋์ ํ์ค ์ ์ด ํน์ฑ์ ๋ถ์ํ๊ธฐ ์ํ์ฌ ์ค๋ฌผํฌ๊ธฐ์ ์์คํ
์ ์กฐ์ฑํ ํ, ๋ฐ๋ณต์ฌํ ์คํ์ ์ํํ์๋ค. ์คํ์ ํ ๋ชฉ์ฌ์ ๋ฅผ ์ค์นํ์ง ์์ ๋ฌด๋ณด๊ฐ, ํ ๋ชฉ์ฌ์ ๋ฅผ 1๊ฒน ์ค์นํ ๋ณด๊ฐ, 2๊ฒน ์ค์นํ ๋ณด๊ฐ์ ์กฐ๊ฑด์ผ๋ก ์ด 3๊ฐ์ง ๊ฒฝ์ฐ๋ก ๋๋์ด ์งํํ์๋ค. ๋ง๋๊ณผ ํ ๋ชฉ์ฌ์ ์๋ถ์ ๊ฐ๊ฐ ํ์ค๊ณ๋ฅผ ์ค์นํ์ฌ ๋ฐ๋ณต์ฌํ ํ์์ ๋ฐ๋ฅธ ์์งํ์ค์ ์ธก์ ํ ๊ฒฐ๊ณผ, ํ ๋ชฉ์ฌ์ ์ ๋ณด๊ฐํจ๊ณผ๋ฅผ ์ ์ธํ๊ณ ์์นญํจ๊ณผ์ ์ํด์๋ง ์ ์ด๋๋ ๋ฐ๋ณตํ์ค์ ์คํ๋ ค ์ธ์ฅ๋ ฅ์ด ํฐ ํ ๋ชฉ์ฌ์ ๋ก ๋ณด๊ฐํ ์๋ก ๊ฐ์ํ๋ ๊ฒฝํฅ์ด ๋ํ๋ฌ๋ค. ๊ทธ๋ฌ๋ ์ต์ข
๋ง๋์ผ๋ก ์ ๋ฌ๋๋ ๋ฐ๋ณตํ์ค์ ํฌ๊ธฐ๋ ํ ๋ชฉ์ฌ์ ๋ฅผ ๋ณด๊ฐํ์ง ์์ ๊ฒฝ์ฐ์ 1๊ฒน, 2๊ฒน ๋ณด๊ฐํ ๊ฒฝ์ฐ์์ ๋ชจ๋ ๋น์ทํ ๊ฒ์ผ๋ก ํ๊ฐ๋์๋ค. ์ด๋ ํ ๋ชฉ์ฌ์ ์ ๋ณด๊ฐ์ด ๋ง๋์ผ๋ก ์ง์ค๋๋ ํ์ค์ ์ฆ๊ฐ์ํจ๋ค๋ ๊ธฐ์กด์ ์ฐ๊ตฌ์๋ ์๋ฐ๋ ๊ฒฐ๊ณผ๋ก, ์ด๋ฅผ ๋ฐํ์ผ๋ก ๋ฐ๋ณตํ์ค ์ ์ด ๋ฉ์ปค๋์ฆ์ ์๊ด๊ด๊ณ๋ฅผ ๋ถ์ํ๊ณ ์ํ๋ค ๋ํ, ๋ฐ๋ณตํ์ค ์ฌํ ์ด๊ธฐ ๋ง๋์ผ๋ก์ ํ์ค์ ๋ฌ ํจ๊ณผ๊ฐ ๊ฐ์ํ๋ ๊ฒฝํฅ์ด ๋ณด์์ผ๋ฉฐ, ์ด๋ ๋ฐ๋ณตํ์ค์ ์ํ ์์นญํจ๊ณผ ๊ฐ์์์ ๊ธฐ์ธํ ๊ฒ์ผ๋ก ํ๋จ๋๋ค. Geosynthetic-reinforced and Pile-supported (GRPS) embankment method is widely used to construct structures on soft ground due to restraining residual settlement and their rapid construction. However, effect of cyclic loading has not been established although some countries suggest design methods through many studies. In this paper, cyclic loading tests were conducted to analyze dynamic load transfer characteristics of pile-supported embankment reinforced with geosynthetics. A series of 3 case full scale model tests which were non-reinforced, one-layer-reinforced, two-layer reinforced with geosynthetics were performed on piled embankments. In these series of tests, the height of embankment and pile spacing were selected according to EBGEO (2010) standard in Germany. As a result of the vertical load parts on the pile and on the geosynthetic reinforcement measured separately, cyclic loads transferred by only arching effect decreased with strength geosynthetic-reinforced case. However, final loads on the pile showed no differences among the cases. These results conflict with previous studies that reinforcement with geosynthetics increases transfer load concentrated on piles. In addition, it is observed that the load transferred to pile decreases at the beginning of cycle number due to reduction of arching effected by cyclic loading. Based on these results, transferred mechanism for cyclic load on GRPS system has been presented.