Shear Wave Velocity Profile Considering Uncertainty Caused by Spatial Variation of Material Property in Core Zone of Fill Dam

Hyung-Choon Park; Byung-Chan Nah; Heui-Dae Lim

doi:10.7843/kgs.2016.32.11.51

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2016 Vol.32, Issue 11 Preview Page Next Page

Shear Wave Velocity Profile Considering Uncertainty Caused by Spatial Variation of Material Property in Core Zone of Fill Dam 필댐 축조재료의 공간 변동성에 의한 불확실성이 고려된 국내 필댐 심벽부 전단파 속도 주상도 모델

30 November 2016. pp. 51-60

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Abstract

In determining a shear wave velocity (Vs) profile model based on field tests for dams, the uncertainties always exist. These uncertainties are caused by spatial variations of material properties in each dam and between dams and should be considered in determining Vs profile model for dams. In this paper, these uncertainties are evaluated and Vs profile model for core zone of fill dam in Korea is proposed using the shear wave velocity profiles determined in seven fill dams. The proposed Vs profile model is compared with Kim’s model and Sawada-Takahashi model widely used for evaluation of Vs profile of core zone of fill dam.

Keywords

Dam

Shear wave velocity

Uncertainty

Spatial variation

본 연구에서는 필댐 심벽부 전단파 속도 주상도 결정시 심벽부 내부에 존재하는 물성치 공간 변동성에 의해 발생 가능한 불확실성을 평가하고 이러한 불확실성이 반영된 개별 댐 전단파 속도 주상도 모델 결정 방법을 제안하였다. 또한 국내 7곳의 필댐 심벽부에서 수행된 결과들을 이용하여 댐 사이에 존재하는 물성치 공간 변동성에 의해 전단파 속도 주상도 결정시 발생 가능한 불확실성을 평가하고, 개별 댐 심벽부 내부 및 댐 사이에 존재하는 물성치 공간 변동성에 의한 불확실성이 모두 고려된 국내 필댐 심벽부를 위한 전단파 속도 주상도 모델을 제안하였다. 제안된 모델은 Sawada-Takahashi 모델과 비교하였으며, 김종태 등에 의해 제안된 모델과 비교하였다.

References

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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 : 32
No :11
Pages :51-60
Received Date : 2016-08-31
Revised Date : 2016-09-30
Accepted Date : 2016-10-17
DOI :https://doi.org/10.7843/kgs.2016.32.11.51

Journal of the Korean Geotechnical Society ISSN:1229-2427(Print) 2288-646X(Online) 한국지반공학회 논문집

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