한국지반공학회논문집 (Journal of the Korean Geotechnical Society)
- 제19권5호
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- Pages.79-87
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- 2003
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- 1229-2427(pISSN)
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- 2288-646X(eISSN)
관로 이격거리에 따른 지중매설관의 거동특성 비교
Comparison of Behaviors for Underground Flexible Pipes with Installation Gap
초록
현행 지중전력선관로 건설시에 사용되는 표준공법은 관과 관사이의 거리를 l0cm 이격시켜 관로를 매설함에 따라 공정이 복잡하고, 경제적이지 못해 이에 대한 개선공법으로 관사이의 좌우이격거리를 없앤 접촉관 공법을 제안하였으며, 이 두 공법의 거동특성과 안정성을 비교
Underground flexible pipes for electric cables are subject to external loads and surrounding soil pressure. Particularly, strain of flexible pipes is of great concern in terms of safety and maintenance of electric cables. In this paper, stress and strain of flexible pipes with two types of installation gap, ie, l0cm and naught, were compared to investigate the structural integrity of pipes from actual field test. The effect of degree of compaction and burial depth were also investigated to simulate the variety of construction situation. The results of the field test show that the strain criteria were satisfied under the burial depths of 80cm, 100cm and 120cm regardless of installation gap.