Fig. 1. Damage range.
Fig. 2. Annual graph for the accidents by the other construction.
Fig. 3. Usage graph for the kinds of underground pipeline in Ulsan and Yeosu industrial estate.
Fig. 4. Perforation frequency for pipe size and thickness.
Fig. 5. FT diagram of physical damage of pipe.
Table 1. Comparison of major laws for underground pipeline
Table 2. Kinds of gases at industrial estate
Table 3. Population density in Ulsan
Table 4. Population density in Yeosu
Table 5. Status of piping circumference (Ulsan industrial estate)
Table 6. Status of piping circumference (City gas)
Table 7. Perforation frequency for pipe size and thickness
Table 8. Reliability data of the each cases’ basic events, Frequency of top event
Table 9. Common & Major Cause of minimal cut set[10]
Table 10. Frequency of minimal cut set for the case study[10]
Table 11. Risk of the other construction
참고문헌
- KGS code : 1)KGS FS551, FS111, FP112
- Ulsan Yeosu Industrial Complex Pipeline Status Index, Korea Gas Safety Corporation
- Ulsan, Yeosu pipe length and excavation frequency data, EOCS
- HIGH-PRESSURE GAS SAFETY CONTROL ACT, Reliable Ministry of Government legislation
- "Gas accident yearbook 2016", Korea Gas Safety Corporation, (2017)
- "Annual City Gas Statistics", Korea City Gas Association, (2017)
- Ulsan & Yeosu Population density statistic, (2017)
- Q.chen., M, A, Nessim, "Reliability based prevention of mechanical damage to pipelines", L51816, 110, (2000)
- "Energy Statistics Yearbook 2015", Energy Economics Institute, Ministry of Trade, Industry and Energy, (2016)
- Kim, J. J. et al., " A Study on the Safety Management of high Pressure Underground Pipeline in Industrial Estate" KIGAS, Vol. 21, No. 6, pp30-38, (2017)