논문 상세보기
pp.9-16
PURPOSES: The purpose of this study is to identify the mechanism of road subsidence caused by damaged water and sewer pipes.
METHODS: A series of soil chamber test using damaged water and sewer pipe models were conducted under various conditions.
RESULTS : Characteristics of cavity expansion and collapse caused by damaged pipes were affected by the damaged location in the sewer pipe, the head on the water pipe, the distance between the damaged water pipe and outlet, and relative soil density.
CONCLUSIONS: Sewer-pipe damage was considered a direct cause of road subsidence, and the cavity expanded discontinuously. When the outlet was located under the damaged water pipe, the cavity expanded in the water pipe’s direction, and collapse occurred above the pipe. However, when the outlet was located atop the damaged water pipe, the cavity expanded toward the outlet direction and resulted in a subsidence. Cavity expansion speed was affected by various conditions, such as the pipe’s water head, outlet position, distance between the damaged water pipe and outlet, and relative soil density. However, the cavity expansion shape did not affect factors, except for outlet position.
1. 서론
2. 상수관 및 하수관 손상이 모사된 모형토조시험
2.1. 시험장치
2.2. 시험시료
2.3. 시험절차
3. 하수관 손상에 따른 동공 발생 및 확장
4. 상수관 손상에 따른 동공 발생 및 확장
4.1. 토사 유출구가 없는 상수관 손상
4.2. 토사 유출구가 하부에 있는 상수관 손상
4.3. 토사 유출구가 상부에 있는 상수관 손상
5. 결론
REFERENCES
