The effects of stability of the tunnel reinforced by re-bar steel pipe

This paper presents the effects of the tunnel stability using re-bar steel pipe which is the steel pipe reinforced by re-bar. In order to carry out this research, not only the theoretical and experimental study for bending stiffness of normal steel pipes and re-bar steel pipes but also numerical analysis of tunnel stability are performed. It is clearly found from the results that 65% of bending stiffness of the re-bar steel pipe is larger than that of the normal steel pipe. The results obtained from the numerical analysis of tunnel stability show that about 10% of tunnel stability is increased in case of the re-bar steel pipe. The re-bar steel pipe, therefore, may be very useful to develope the tunnel stability economically.

keywords: 철근보강형강관, 터널안정성, 휨강성, Re-bar steel pipe, tunnel stability, bending stiffness, Re-bar steel pipe, tunnel stability, bending stiffness

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Article Contents

Vol.12 No.5

The effects of stability of the tunnel reinforced by re-bar steel pipe

Abstract

Reference

(사)한국터널지하공간학회