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2014 Vol.30, Issue 5 Preview Page
Determination of Representative Shear Wave Velocity Profile for Rockfill Zone of CFRD Considering Uncertainty Caused by Spatial Variation of Material Property

국내 콘크리트 표면차수벽형 석괴댐(CFRD) 사력존의 전단파 속도 분포 결정(II): 물성치의 공간 변동성에 의한 불확실성이 고려된 CFRD 사력존의 1차원 전단파 속도 주상도의 결정

Hea-Jin Hwang1
,
Hyung-Choon Park2*
황 혜진1
,
박 형춘2*
1Graduate Student, Dept. of Civil Engrg., Chungnam National Univ.
2Associate Prof., Dept. of Civil Engrg., Chungnam National Univ.
1충남대학교 토목공학과 박사과정
2충남대학교 토목공학과 부교수
*교신저자. *Corresponding Author. 
31 May 2014. pp. 17-24
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Abstract

This paper determines 1D shear wave velocity (Vs) distribution of rockfill zone of CFRD using Vs profile determined by the surface wave test. There exists uncertainty in the field test result because of a spatial variation of material property. The harmonic wavelet transform is used to evaluate the uncertainty of test result and generate random 1D Vs distributions which may exist in the rock fill zone. Through the statistical analysis of generated random Vs distributions, the representative 1D Vs distribution considering the uncertainty of test results is proposed for the rockfill zone of CFRD in Korea.

Keywords
Uncertainty
Shear wave velocity
CFRD
Rockfill zone

본 논문에서는 국내 CFRD 사력존을 위한 1차원 전단파 속도 분포를 제안하였다. 이를 위해 선정된 3개의 댐 사면 8곳에서 수행된 표면파 시험 결과를 사용하였다. 다양한 원인에 의해 존재 가능한 사력존 물성치 공간 변동성에 의한 표면파 시험 결과의 불확실성을 고려하고자 시험에서 얻어진 개별 주상도들을 하모닉 웨이브릿 변환을 통해 공간-파수 영역에서 분석하였다. 이를 통해 전단파 속도 주상도에 존재하는 불확실성을 평가하였다. 논문에서 제안된 방법을 통해 사력존에 존재 가능한 1차원 전단파 속도 분포들을 생성하였으며, 생성된 1차원 전단파 속도 분포들을 사용하여 물성치 공간 변동성에 의한 불확실성이 고려된 국내 CFRD 사력존의 1차원 전단파 속도 분포를 결정하였다.

References
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1.Ha, I.S. (2007), Sensitivity analysis of rockfill input parameters influencing crest displacement of CFRD subjected to earthquake loading, J. of the Earthquake Engineering Society of Korea, Vol. 11, No.1, pp.1-9.
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9
Received : October 24th, 2013
10
Revised  : December 23rd, 2013
11
Accepted : March 31st, 2014
Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 30
  • No :5
  • Pages :17-24
  • Received Date : 2013-10-24
  • Revised Date : 2013-12-12
  • Accepted Date : 2014-03-31
  • DOI :https://doi.org/10.7843/kgs.2014.30.5.17
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