모형토조 실험 및 유한요소 해석에 의한 지오그리드의 보강토 옹벽 적용성 고찰

In order to minimize settlement of shallow foundation, model test is performed using geogrids for reinforcement. The optimal reinforcement effect is found by varying reinforcement length to 1, 2, 4, and 5 times of foundation length and changing reinforcement layer to 10㎝ and 20㎝ from the surface. In the test result, it is interpreted that 2 layers and 4 times of foundation length is the most effective reinforcement condition of geogrids. The reinforcement effect of welded type 6T is less than the reinforcement effect of warp knitted type 6T. It can be seen that the stiffness of reinforcement makes same behavior with soil difficult, so capacity of reinforcement is reduced.