ON THE DEVELOPMENT OF EXPLOSION TECHNOLOGY IN SEOUL METRO SUBWAY CONSTRUSTION

서울 지하철 건설의 발파기술 발전

  • 許眞
  • Published : 2000.03.01

Abstract

The blasting work to construct a subway in seoul, korea have often cased increased neighbor's complaints because of ground vibration. In order to prevent the demage to the stucture it was necessary to predict the level of blasting induced vibration and to determine the maximum charge weigh per delay with an allowable vibration level. The effect of blasting pattem, rock strength and different explosive on the blast-induced ground vibration was studied to determine the maximum charage weight per delay within a given vibration level. The blasting vibration equation from over 100 test data was obtained, V= K(D/W(equation omitted), where the values for n and K are estimated to be 1.7 to 1.5 and 48 to 138 respectively.

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