논문 상세보기
pp.435-443
Most of aged water supply pipes have been replaced by the open cut method. However, this method has some limitations because water pipes, in many cases, are buried together with other underground facilities or are buried in the middle of high-traffic roads or in narrow alleyways where boring machines cannot be used. This research developed a pipe bursting device for small diameter pipes that enables pipe replacement without excavating the ground, by the busting of existing buried pipes followed by the traction and insertion of new pipes. As a results of examining the field applicability of the developed device, PE pipes and PVC pipes required the tractive force of 413.65～665.69 kgf and 457.43～791.35 kgf respectively, plus an additional 30 % tractive force per elbow. The proper number of bursting head was demonstrated that the connection of more than 2 heads could secure a stable bending radius of 15D. The developed device can be improved through field experiments involving various pipe types and pipe diameters, as well as presence/absence of elbow, so as to be utilized regardless of diverse variables according to the conditions of the soils surrounding existing pipes.
1. 서 론
2. 연구재료 및 방법
2.1 실험 장치의 구성
2.2 실험방법
3. 결과 및 고찰
3.1 관종별 Pipe bursting 공법의 견인력 및 견인시간 실험
3.2 파쇄헤드 개수에 따른 PVC관의 곡률반경 실험결과
4. 결 론
References
