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2025 Vol.27, Issue 5

Research Paper

Evaluation of additives for cutter wear reduction

커터 마모저감용 첨가제의 성능 평가

Jae-Won Lee1
,
Ju-Hyi Lim1
,
Jae-Hoon Jung2
,
Chang-Yeol Jo3
,
Young-Jin Shin4*
이 재원1
,
임 주휘1
,
정 재훈2
,
조 창렬3
,
신 영진4*
1Senior Researcher, R&D Center, Hyundai Engineering & Construction
2Senior Researcher, R&D Center, Hyundai Engineering & Construction
3Chief Executive Officer, MAK Technology Co., Ltd.
4Team Leader, R&D Center, Hyundai Engineering & Construction
1비회원, 현대건설 기술연구소 책임연구원
2정회원, 현대건설 기술연구소 책임연구원
3비회원, ㈜맥테크놀로지 대표
4정회원, 현대건설 기술연구소 팀장
*Corresponding Author
30 September 2025. pp. 331-348
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Abstract

In urban tunnel construction, the use of blasting methods has been declining due to issues related to noise, vibration, and environment. As a result, mechanized tunneling has become increasingly prevalent. Mechanized tunnel excavation equipment operates by cutting the ground with cutters mounted at the front, which are key consumable components subject to wear due to friction with the ground. Especially when excavating high-strength rock, excessive cutter wear can lead to delays and increased construction costs. Various wear-reduction technologies and additives have been developed to address this issue, but only a few have been validated in field applications. This study involved laboratory and field experiments to evaluate the performance of domestically developed wear-reducing additives, which resulted in a wear reduction of 22–45% in laboratory tests and around 17% in field applications. The results provide insights into the effectiveness of these additives in reducing cutter wear and their potential for practical application. This study is expected to serve as a foundational reference for improving tunneling efficiency and reducing overall construction costs.

Keywords
Cutter
Wear-reducing additives
Mechanized tunnel

도심지 터널공사에는 발파 공법이 소음, 진동, 환경적 문제를 야기함에 따라 기계화 터널 굴착 공법이 점차 활성화되고 있다. 기계화 터널 굴착 장비는 전방에 장착된 커터를 이용해 지반을 절삭하는 방식으로 작동되며, 커터는 지반과의 마찰로 인해 마모가 발생하는 주요 소모품이다. 특히 고강도 암반을 굴착할 경우, 커터의 과도한 마모로 인해 공사 기간 지연 및 비용 증가와 같은 리스크가 발생한다. 이를 해결하기 위해 다양한 마모 저감 기술 및 첨가제가 개발되고 있으나, 첨가제의 성능을 검증한 사례는 제한적이며, 현장 적용에 어려움이 있다. 본 연구에서는 국내에서 개발된 마모 저감용 첨가제를 대상으로 실내 실험 및 현장 실험을 수행하였으며 각각 22–45%, 17%의 마모 저감율을 확인할 수 있었다. 연구 결과는 커터의 마모 저감 효과와 첨가제의 실질적 적용 가능성을 제시하며, 터널 굴착 효율 향상과 비용 절감을 위한 기초 자료로 사용될 수 있을 것으로 기대된다.

키워드
커터
마모저감제
기계화 터널
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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 : 27
  • No :5
  • Pages :331-348
  • Received Date : 2025-07-21
  • Revised Date : 2025-08-27
  • Accepted Date : 2025-09-02
  • DOI :https://doi.org/10.9711/KTAJ.2025.27.5.331
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