Evaluation of disc cutter penetration depth of shield TBM in practice

Sang-Hwan* Kim; In-Joon Park; Soo-Ho Chang

doi:10.9711/KTAJ.2013.15.3.321

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2013 Vol.15, Issue 3 Preview Page Next Page

Evaluation of disc cutter penetration depth of shield TBM in practice 쉴드TBM의 현장 디스크커터 관입깊이에 대한 연구

31 May 2013. pp. 321-331

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Abstract

This paper describes the evaluation of shield TBM disc cutter penetration depth in practice. In this study the disc cutter penetration depth used to design the excavation speed of tunnel is reviewed. The characteristics of ground encountered in the investigation site are analysed and evaluated. The shield TBM used in the field is reviewed to verify the applicability of machine in the site. The thrust and torque capacities of each TBM disc cutter are also evaluated. Based on the field data, the excavation volume and speed are re-analysed to evaluate the disc cutter penetration depth used in the design stage. It is clearly found that the design value of disc cutter penetration depth needs to modify when estimation of the TBM capacities in very hard rock formation (>150 MPa).

Keywords

Disc cutter penetration depth

Double and single shield TBM

Excavation volume and speed

이 연구는 TBM의 디스크커터 관입깊이에 대하여 실질적인 현장을 통하여 평가한 것이다. 연구를 위하여 설계시 적용되는 디스크커터 관입깊이에 대하여 검토하였다. 또한 대상 현장에 대한 지반특성에 대하여 검토하고 현장에 투입된 장비에 대한 적용성에 대하여 분석하였다. 특히 장비의 용량분석을 실시하여 적합성에 대하여 평가하였다. 이러한 평가결과와 현장 공사자료를 근거로 실질적인 TBM의 공사량과 굴진속도를 분석하였다. 이 결과로부터 설계시 적용된 TBM의 디스크커터 관입깊이에 대하여 재평가 하였다. 연구 결과로부터 설계시 적용되는 디스크커터 관입깊이는 특히 극경암 지반(>150 MPa)에 있어서 적용값의 변경이 필요하다는 것을 명백히 보여주었다.

키워드

디스크커터 관입깊이

Single 쉴드TBM

굴착량과 굴진속도

References

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Information

Publisher :Korean Tunneling and Underground Space Association
Publisher(Ko) :한국터널지하공간학회
Journal Title :Journal of Korean Tunnelling and Underground Space Association
Journal Title(Ko) :한국터널지하공간학회 논문집
Volume : 15
No :3
Pages :321-331
Received Date : 2013-05-01
Revised Date : 2013-05-13
Accepted Date : 2013-05-27
DOI :https://doi.org/10.9711/KTAJ.2013.15.3.321

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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