Analysis of Blasting Vibration Impacts on Underground Structures Using Field-Measured Data

Hyeon-Woo Lee; Seung-Joong Lee; Sung-Oong Choi

doi:10.7474/TUS.2026.36.3.221

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2026 Vol.36, Issue 3 Preview Page Next Page

Case Study

Analysis of Blasting Vibration Impacts on Underground Structures Using Field-Measured Data 발파진동 실측 데이터를 활용한 지하구조물의 발파진동 영향 분석

30 June 2026. pp. 221-239

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Abstract

The effects of blasting vibration on underground structures were numerically analyzed using field-measured data. The research target facility is an open-pit limestone mine. The 3D numerical model for the analysis was constructed using the actual topography based on drone and LiDAR surveying data, and the blasting load which is the main input data in dynamic analysis was determined through back-analysis of the field-measured blasting vibration results. The analysis of the effects of blasting operations revealed that the stability of the underground structures was not significantly compromised when an appropriate maximum charge weight per delay was applied. Also, it was confirmed that the blasting load determined through back-analysis reproduced the blasting vibration regression equation derived from the field-measured data in a highly reasonable manner. Therefore, the back-analysis-based blasting load estimation technique can be effectively utilized as a method to determine input data for dynamic numerical analysis to evaluate blasting vibration impacts on underground structures. Consequently, the methodology proposed in this study is considered appropriate as an approach and analytical procedure for blasting vibration impact assessments.

Keywords

Blasting vibration

Dynamic numerical analysis

Stability analysis

Back-analysis

본 연구에서는 노천 석회석 광산의 지하구조물에 대한 발파진동 영향을 분석하기 위해 실측된 발파진동 데이터를 토대로 수치해석적 안정성 분석을 실시하였다. 3차원 수치해석 모델을 구축하기 위하여 드론 및 LiDAR 측량 자료를 기반으로 실측 형상을 반영하였으며, 수치해석의 주요 입력자료인 발파하중은 현장에서 수행된 발파진동계측 결과를 토대로 역해석을 수행하여 직접 산정하였다. 연구대상 광산의 주요 지하구조물에 인접하여 수행되고 있는 발파작업이 구조물의 안정성에 미치는 영향을 분석하기 위해 수행된 3차원 연속체 동적해석 결과, 적정 수준의 지발당 장약량 적용 시 지하구조물의 안정성에 큰 문제는 없는 것으로 확인되었으며, 역해석을 통해 산정된 발파하중 역시 발파진동 계측값으로부터 도출된 발파진동추정식을 합리적인 수준에서 재현하고 있는 것으로 확인된다. 따라서 본 연구에서 적용된 역해석 기반의 발파하중 산정기법은 지하구조물에 대한 발파진동 영향 평가 시 최적의 동하중 해석용 입력자료 제공에 활용 가능하며, 향후 이와 유사한 현장에 대해 발파진동 영향평가 시 최적의 해석방법의 하나로 제안될 수 있을 것으로 판단된다.

키워드

발파진동

동적수치해석

안정성 분석

역해석

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Information

Publisher :Korean Society for Rock Mechanics and Rock Engineering
Publisher(Ko) :한국암반공학회
Journal Title :Tunnel and Underground Space
Journal Title(Ko) :터널과 지하공간
Volume : 36
No :3
Pages :221-239
Received Date : 2026-05-29
Revised Date : 2026-06-17
Accepted Date : 2026-06-22
DOI :https://doi.org/10.7474/TUS.2026.36.3.221

Tunnel and Underground SpaceISSN:1225-1275(Print) 2287-1748(Online)한국암반공학회

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