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수치해석을 이용한 이중보온관 발파진동 관리기준에 관한 연구

Title
수치해석을 이용한 이중보온관 발파진동 관리기준에 관한 연구
Other Titles
A Study on Blasting Vibration Control Criteria for Pre-insulated Pipe through the Numerical Analysis
Author
유한규
Keywords
이중보온관; 발파; 진동; 관리기준; Pre-insulated pipe; Blast; Vibration; Control criteria
Issue Date
2013-07
Publisher
대한토목학회
Citation
대한토목학회논문집, v. 33, NO. 4, Page. 1471-1478
Abstract
본 논문에서는 이중보온관의 발파진동 관리기준 제시를 위하여 이격거리와 매설심도를 변수로하여 수치해석을 수행하였다. 수치해석 적용 발파하중 모델은 현장시험 결과와의 비교를 통하여 검증하였다. 수치해석 결과, 이중보온관은 진동속도 4.0cm/sec 이상에서 발생 유효응력이 내관의 허용응력을 초과하거나 근접하는 것으로 나타났으며, 4.0cm/sec 이하에서 안정성이 확보되는 것으로 평가되었다. 따라서, 이중보온관의 진동관리기준은 4.0cm/sec를 초과하지 않도록 관리하여야 할 것으로 판단된다.;In this paper, numerical analysis with varying distance and burial depth was performed to recommend the blasting vibration control standard for pre-insulated pipes. The blasting load model applied in the numerical analysis was verified to the comparison with the results of the field tests. It was determined from the results of the numerical analysis that the effective stress either exceeds or approaches the allowable stress of the inner steel pipe for vibration velocity greater than 4.0cm/sec while stability is obtained for vibration velocity below 4.0cm/sec. Therefore, it was determined that the blasting vibration control criteria for pre-insulated pipes must not exceed 4.0cm/sec.
URI
http://koreascience.or.kr/article/JAKO201322658551510.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/183034
ISSN
1015-6348;2799-9629
DOI
10.12652/Ksce.2013.33.4.1471
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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