실트함량에 따른 카올리나이트의 침식특성 평가

• 영문명: Erosion Characteristics of Kaolinite with respect to Contents of Silt
• 발행기관: 한국방재학회
• 저자명: 이주형 박재현 정문경 곽기석 Lee, Ju-Hyung Park, Jae-Hyun Chung, Mun-Kyung Kwak, Ki-Seok
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2008년, 593~596쪽, 전체 4쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2008.02.28

영문 초록

The scour phenomenon involves the erosive potential of flowing water and the relative ability of the soil to resist erosion. The scour phenomenon in cohesive soils is much different from that in non-cohesive soils. Granular soils resist erosion by their buoyant weight and the friction between the particles. The soil particles are dislodged individually from the bed under the action of the eroding fluid. Scour in cohesive soils is much slower and more dependent on soil properties than that in non-cohesive soils. Therefore the analysis models for estimating erosion characteristics of cohesive soils should consider not only flowing water but also the relative ability of the soil to resist erosion. In this study, erosion characteristics for the clay-silt mixed soil will be analyzed as a fundamental study for development of bridge scour analysis and design system considering scour resistance capacity of a soil. For this analysis, the relationship between scour characteristics and soil properties was evaluated through scour rate test with Kaolinite samples remolded using various loading and contents of silt.

키워드

bridge scour scour rate test erosion characteristics kaolinite