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http://dx.doi.org/10.12814/jkgss.2017.16.2.109

Evaluation of Discharge Capacity of Upper Sand Deposit at the Nakdong River Estuary  

Jeong, Jin-Yeong (Dept. of Civil and Environmental Engineering, Korea Maritime and Ocean University)
Kim, Tae-Hyung (Dept. of Civil Engineering, Korea Maritime and Ocean University)
Im, Eun-Sang (Infrastructure Research Center, K-water Institute)
Hwang, Woong-Ki (Dept. of Civil Engineering, Korea Maritime and Ocean University)
Kim, Gyu-Jong (Sung-eun Geotech)
Publication Information
Journal of the Korean Geosynthetics Society / v.16, no.2, 2017 , pp. 109-119 More about this Journal
Abstract
In this research, it was investigated that whether the upper sand deposited in Nakdong River Estuary Delta region has the role of horizontal drains like sand mat. The results from tests for particle size distribution and permeability of the upper sand deposit did not meet completely the criteria for the horizontal drain material. Thus, numerical analysis has been conducted additionally. Numerical analyses of consolidation of soft soils with upper layer of sand deposit are conducted in both the sand mat with a thickness of 1m and the upper sand deposit with 1, 2, 3, and 4 m of thickness and their results are compared. As the results of numerical analysis, the upper sand deposit with a thickness of 2m or more may play the role of horizontal drains similar to a sand mat. If a PVD is installed, the ability of upper sand deposit as horizontal drains is increased. Form this study, it was concluded that the upper sand deposited in Nakdong River Estuary Delta has the role of horizontal drain.
Keywords
Sand mat; Permeability; Upper Sand Deposit; Horizontal Drains;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 김상규, 김윤태, 김재홍 (2014), "대심도 연약지반 연직배수재 설계시 고려사항", 한국지반공학회지, 제30권, 제5호, pp.15-24.
2 Bak. K. J. (1998), Effect of Depositional Environments on Engineering Characteristics of Marine Deposits in the Nakdong River Mouth and its Neighboring Coast, Ph.D Thesis, Dongguk University.
3 Biot, M. A. (1941), "General Theory of Three-dimensional Consolidation", Journal of Applied Physics, Vol.12, No.2, pp.155-164.   DOI
4 Busan Metropolitan Corporation. (2016), http://www.bmc.busan.kr/projects/industry_01_24/.
5 Chung, S. G. Lee, N. K. Lee, J. M. Min, S. C., and Hong, Y. P. (2010). "Hydraulic Characteristics of Busan Clay in the Floodplain of the Nakdong River Delta", Journal of Korean Geotechnical Society, Vol.26, No.2, pp.47-61.
6 Kang, C. G. (2011). Unsaturated permeability Characteristics of silty sand on the Nakdong River, Master Thesis, Kyungpook National University.
7 Kim, B. J., Kim, J. H., Jung, J. Y., Kwon, J. K., and Kim, T. H. (2016a), "Characteristics of Sedimented Sandy in Nakdong River Delta", Journal of the Korean Geosynthetics Society, Vol.15, No.2, pp.25-33.
8 Kim, J. H. Kim, T. H. Kwon, J. K. Kim, B. J. Jeong, and J. Y. (2015), "Study on the Physical and Mechanical Properties of Sandy Soil in the Nakdong River Delta Area", Proc. of KSCE 2015 CONVENTION 2015 CIVIL EXPO & CONFERENCE, Gunsan, pp.1-2.
9 Kim, J. H., Kwon, J. K., Jung, J. Y., Hwang, W. K., and Kim, T. H. (2016b), "An Experimental Study on the Applicability of Upper Sand Deposit in the Nakdong River Delta as Horizontal Drains", Proc. of the Fall Conference of Korean Geosynthetics Society, Gyeonggi pp.89-90.
10 Kim, S. W., Lee, S. W., Lee, J. W., Jo, K. Y., Kim, Y. T., and Kim, J. S. (2006), "Depositional Environments and Sequence Stratigraphy of estuary of the Nakdong River", Proc. of the Spring Conference of Korean Geotechnical Society, pp.882-887.
11 Kim, Y. K. (2008), Estimation of Sandmat Thickness Considering Settlement of Soft Ground, Master Thesis, Chonju University, pp.57.
12 Korea Water Resource Corporation (K-water) (2014). Soil Investigation Report of Busan Eco-Delta City Section 3. pp.38.
13 Ministry of Land, Infrastructure and Transport (2016), Korean Construction Specification - KCS 11 30 15 : 2016, Ministry of Land, Infrastructure and Transport.
14 Nam, K. H. (1995), Behavior Analysis of the Foundation Improved with Pack drain using Modified Cam-Clay Model, Master Thesis, Chonnam National University, pp.91.