토목섬유튜브공법은 고분자 합성섬유인 지오텍스타일을 활용하여 하천 및 해안구조물을 비롯하여 다양한 토목구조물을 축조할 수 있는 최신 적용공법이다. 본 논문에서는 해안가 모래의 침식을 방지를 위해 토목섬유튜브의 거동과 안정성, 침식방지 활용 가능성을 파악하고자 실내시험과 현장시험을 실시하였다. 실내시험인 대형직접전단시험 결과에 의하면 상대밀도가 증대됨에 따라 마찰각이 증가함을 알 수 있었고, 모래/토목섬유의 마찰각이 모래/모래의 마찰각보다 더 크게 나타났다. 현장시험 결과에 의하면 계측을 통해 시공 중 및 시공 후의 거동과 안정성을 파악하였고 침식방지 효과를 확인하였다.
Geotextile tube method is the latest application process to construct a variety of civil structures such as river and coastal structures by using geotextile which is a high polymer synthetic fiber. In this paper, laboratory tests and field tests were conducted in order to identify the behavior, stability and application possibility of geotextile tube which prevents the erosion of coastal sand. As a result of large-scale direct shear test, which is one of laboratory tests, the increase in friction angle was shown as the relative density increased, and friction angle of sand/geotextile was larger than that of sand/sand. As a result of field test, the behavior and stability during construction and after construction were identified through measurement, and the effect of preventing erosion was confirmed.
