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Title |
A Suggestion of Blasting Patterns of a Mine closed to Railway Line for Securing Safety of High Speed Train
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Authors |
김현기(Hyun-Ki Kim) ; 이성혁(Sung-Hyeok Lee) ; 이진욱(Jin-Wook Lee) ; 최찬용(Chan-Yong Choi) |
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DOI |
http://dx.doi.org/10.11112/jksmi.2015.19.5.001 |
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Keywords |
고속철도 ; 고속열차 ; 광산 발파 ; 진동 ; 안전성 평가 High-Speed Rail ; High-Speed Train ; Mine Blasting ; Vibration ; Safety Evaluation |
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Abstract |
Recently Honam high-speed railroad line is constructed in southern part of Korea. This line is for next generation HST named HEMU-430X. But there is a limestone mine near this line and this mine will make a process to dig a passageway under the railway line. In this case, safety of railroad system and stability of mine are crucial problems on both sides. By measuring mine blasting vibration and calculating regression equation, effect of mine blasting to train running is investigated quantitatively. 0.5 kine (cm/sec) is applied as a management specification of vibration based on field measurement. In this study, changes of blasting patterns are suggested to control vibration of mine blasting. And the effect of train vibration to mine is also invesitigated by numerical analysis.
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