화약ㆍ발파 (Explosives and Blasting)
- 제19권1호
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- Pages.11-18
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- 2001
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- 1229-9073(pISSN)
지중변전실 하부통과를 위한 터널설계 및 시공사례
A Case on Design and Construction of Tunnel for Under Passing an Underground Transformer Substation
초록
This is a case history on design and cnostruction of tunnel for under passing an underground transformer substation. The original construction plan was cut & cover method to avoid blasting vibrations and displacements of facilities during the construction stages. But this plan was changed to tunnel because of the difficulties from construction period, cost and the required relocation site. As a results of tunnel construction, the relocation of transformer substation and replacements of transmission cables were not necessary. Therefore about 10 months of construction period and 3.5 billion wonts of construction cost were saved. Additionally, quantitative criterion for blasting was provided through the results of blasting vibration analysis.