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2025 Vol.41, Issue 6 Preview Page
Propagation Characteristics of Blasting Noise and Noise Impact Assessment for Nonelectric Detonator Blasting in Tunnel Portals

터널갱구부 비전기 뇌관발파시 발파소음의 전파특성 및 영향평가 방법

Jin-Wook Oh1
,
Yu-Seok Shin2
,
Kang-Il Lee3*
오 진욱1
,
신 유석2
,
이 강일3*
1Member, Ph.D. Candidate, Dept. of Civil Engineering, Daejin Univ.
2Member, Ph.D. Candidate, Dept. of Civil Engineering, Daejin Univ.
3Member, Prof., Dept. of Civil Engineering, Daejin Univ
1정회원, 대진대학교 토목환경공학과 박사과정
2정회원, 대진대학교 토목환경공학과 박사과정
3정회원, 대진대학교 스마트건설환경공학과 교수
*Corresponding Author
31 December 2025. pp. 29-42
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Abstract

As tunnel construction in urban areas increases, reducing blasting noise has become critical. Selection of effective soundproof systems for tunnel portals is hindered by limited comparative data on noise reduction relative to distance and portal configuration. Additionally, prediction methods for blasting noise vary, producing debate over impact assessments and compliance with noise limits. To address these issues, we conducted nonelectric detonator blasting tests in three domestic tunnel portals with different soundproof systems. Results indicate that steel-frame panel soundproof walls are more effective at reducing blasting noise than a flexible soundproof door made from soft materials such as tire mats. Among prediction methods, those by Lee (2003) and EX (2009) provided better agreement with measured noise level for tunnel portals.

Keywords
Blasting test
Nonelectric detonator blasting
Blasting noise prediction
Noise reduction
Soundproof system
Tunnel portal

최근 들어 철도노선의 연장, 광역급행철도 신설 등으로 도심지의 터널시공을 위한 발파가 빈번해짐에 따라 발파소음수준의 저감을 위한 연구도 활발하게 수행되어 왔다. 그러나 터널 입구에 발파 및 방음 시스템을 다르게 설치할 경우 발파 지점과의 거리에 따라 소음 수준 감소 효과가 달라질 수 있음에도 불구하고 이에 대한 연구 결과가 부족하여 효과적인 방음 시스템 선정에 문제가 있었다. 또한 소음영향평가 수행시 발파소음의 예측방법이 상이하기 때문에 발파소음수준 예측 및 발파소음의 소음 규제기준 초과여부 결정에 대한 논란도 지속되고 있다. 이에 본 연구에서는 이와 같은 문제를 해결하기 위해 방음시스템을 달리 설치한 국내 3개소의 터널갱구부를 대상으로 비전기식 뇌관 시험발파를 수행하였다. 연구결과, 철재 프레임과 판넬로 구성된 방음벽이 타이어매트와 같은 연성 재질로 구성된 방음문보다 발파소음의 저감에 효과적이었고, 터널갱구부에 대한 발파소음 예측은 Lee(2003)과 EX(2009)의 예측방법이 좀 더 적합한 것으로 분석되었다.

References
1

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2

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Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 41
  • No :6
  • Pages :29-42
  • Received Date : 2025-09-04
  • Revised Date : 2025-11-19
  • Accepted Date : 2025-11-19
  • DOI :https://doi.org/10.7843/kgs.2025.41.6.29
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