• 한국환경복원기술학회지
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• 제3권4호
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• pp.60-73
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• 2000

The purpose of the study was to analyze the feasibility of the alluvial deposit deposited on upper terrace in Han River as a substitute for conventional plant soil. For this purpose, the soil characteristics were analyzed, and germination and growth rate of pansy and marigold for 75 days were investigated. Soil contamination level of all the samples, except mineral oil, was analysed under the legal contamination level, while some mineral oil was detected in almost samples at 2.0~32mg/kg. The measures of the soil texture (sandy loam or loam), organic matter (2.5~5.5%), available phosphate (22~98mg/kg), exchangeable cation of K (0.5~1.1cmol/kg), Ca (0.9~9.6cmol/kg), Mg (0.1~0.7cmol/kg), Na (0.7~3.1cmol/kg), CEC (3.1~24.3cmol/kg) were identified as not worse than those of conventional planting soil. But the pH (5.1~5.3) was detected slightly lower than the range (5.5~6.9) of average domestic field soil. The germination rate of pansy in alluvial deposit was lower than that of fertile field or paddy field soil, while the growth rate of pansy for 75 days in alluvial deposit was as good as that of the compared fertile soils. But the germination rate and growth rate of marigold in alluvial deposit were much poorer than those of marigold in compared fertile soils. Consequently, the feasibility of alluvial deposit as a substitute for planting soil was evaluated to be high.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 제17회 워크샵 및 추계학술대회
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• pp.591-594
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• 2005

Geothermal energy becomes to be one of the promising energy sources. In this study, technology using water thermal energy from riverbank filtration system(including alluvial and riverbed deposit) is reviewed and checked as an energy resources. The objects of this study are (1) long-term monitoring of alluvial and riverbed sites, (2) preliminary design of cooling and heating system at riverbank filtration facility, and (3) calculation of potential groundwater heat energy, including riverbank filtration system. Measuring data of alluvial and riverbank filtration show slight fluctuations comparing to temperature of atmospheric air which indicates that groundwater obtained from the riverbank filtration system have a sufficient potential as a source of cooling and heating energy.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1998년도 가을 학술발표회 논문집
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• pp.463-470
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• 1998

The boundary/finite element analysis for the seismic wave amplifications due to nonhomogeneous alluvial deposits was performed in this study. For numerical analysis, the homogeneous linear elastic soil half-space was modeled by using the 3-node isoparametric boundary elements and the inhomogeneous alluvial deposit was modeled by using the 8-node isoparametric finite elements. The two elements at interface were coupled together by the equilibrium condition of the tractions and the compatibility condition of the displacements. As a prarmetric variable, the incident angle and the dimensionsless frequency of the SH, P and SV-waves and the shear wave velocity ratio and the mass density ratio between the half-space and the alluvial deposit were selected.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.876-881
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• 2006

This study was carried out to understand depositional environment and genesis of clayey soils that distributed in the Dongup area. On the basis of detailed observation and description on mineralogy, geochemical composition, geophysical properties, paleontological analysis of cored sediments, three sedimentary unit have been distinguished. From bottom to top, they are early Holocene freshwater muddy deposit(Unit I, fluvial swamp), late Holocene silt and muddy deposit(Unit II, alluvial deposit), late Holocene muddy deposit(Unit III, fluvial swamp). Unit II is divided into three part: the lower part-unweathered massive silt and muddy deposit, middle part-weathered layered slit and muddy deposit and upper part-weathered massive muddy deposit.

• 한국암석학회:학술대회논문집
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• 한국암석회.한국광물학회 2009년도 공동학술발표회 논문집
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• pp.12-14
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• 2009

• 대한지리학회지
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• 제46권4호
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• pp.396-412
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• 2011

충남 부여지역의 홀로세(약 8,400 yrs B.P.~현재) 기간의 환경 특히 기후환경을 복원하기 위하여 부여군 가탑리 일대에 분포하는 선상지 퇴적물을 대상으로 탄소동위원소분석과 대자율분석을 실시하였다. 탄소동위원소분석 결과에 의하면, 조사지역에서는 크게 5회의 기후변화가 확인되었는데 I기(期)부터 VI기(期)로 가면서 가장 냉량 건조${\rightarrow}$온난 습윤${\rightarrow}$냉량 건조${\rightarrow}$온난 습윤${\rightarrow}$IV기(期)에 비해 건조${\rightarrow}$V기(期)에 비해 습윤한 환경으로 변천하는 것을 알 수 있었다. 특히 약 5,900~3,200 yrs B.P.의 기간이 상대적으로 가장 온난 습윤했던 것으로 밝혀졌다. 하지만 대자율분석에 의하면 시료채취지점 일대의 환경변화는 크게 4개의 시대로 구분되는데 ii-기(期)에 가장 대자율이 높다. I-기(期)는 배후습지 기원의 퇴적물로 이루어져 있으며, 시간의 경과에 따라 토양화가 진전되었다. 이에 비해 ii-기(期)와 iii-기(期)에서 대자율이 다른 시기에 비해 높은 이유는 구릉사면의 풍화와 토양화 과정에서 강자성 광물이 집적된 토양층이 침식에 의해 제거되고 이들이 운반되어 선상지 퇴적물을 형성했기 때문이다. iv-기(期)는 경작층으로 이용되는 현재에 대비된다.

• Geomechanics and Engineering
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• 제9권2호
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• pp.125-144
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• 2015

This paper presents the probabilistic seismic microzonation of densely populated Kolkata city, situated on the world's largest delta island with very soft alluvial soil deposit. At first probabilistic seismic hazard analysis of Kolkata city was carried out at bedrock level and then ground motion amplification due to sedimentary deposit was computed using one dimensional (1D) wave propagation analysis SHAKE2000. Different maps like fundamental frequency, amplification at fundamental frequency, peak ground acceleration (PGA), peak ground velocity (PGV), peak ground displacement (PGD), maximum response spectral acceleration at different time period bands are developed for variety of end users, structural and geotechnical engineers, land use planners, emergency managers and awareness of general public. The probabilistically predicted PGA at bedrock level is 0.12 g for 50% exceedance in 50 years and maximum PGA at surface level it varies from 0.095 g to 0.18 g for same probability of exceedance. The scenario of simulated ground motion revealed that Kolkata city is very much prone to damage during earthquake.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2008년도 정기총회 및 학술발표대회
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• pp.203-206
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• 2008

There are lots of the narrow pass on alluvial channel of Korea. Most of research about this narrow pass of channel were focused on incremental effect of water level at backwater segment. In the meantime this research showed that it is important to valuate the river-bed variation at backward and forward around narrow pass. The sediment deposit at not only the backward of narrow pass but also the forward affected incremental effect of water level. The sediment deposit at the forward of narrow pass headed by sediment that passed through the narrow passed or scoured right around it.

• 지질공학
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• 제22권3호
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• pp.263-274
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• 2012

본 연구는 지하수 수치 모델링을 통하여 인공 구조물 건설에 따른 하천주변 지역의 지하수 환경 변화를 평가하였다. 하성충적층의 지하수위는 강우 사건보다는 하천수위의 계절적인 변동에 민감하게 반응하며, 이것은 지하수가 하상퇴적층을 통해 하천수와 직접적으로 연결되어 있기 때문이다. 한편, 부정류 모델링 결과, 지하수위는 하성충적층 내부 저지대에 위치하는 독산의 남쪽과 동쪽 지역, 덤밑산 동쪽 지역에서 상승되고 있으며, 지하수위 상승폭은 6 m 이내로 평가되었다.

• 한국지열·수열에너지학회논문집
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• 제3권2호
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• pp.39-51
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• 2007

Unconsolidated and permeable alluvial deposit composed of sand and gravel is distributed along the fluvial plain at the Iryong study area. Previous studies on the area show that a single alluvial well can produce at least 1,650m3d-1 of bank infilterated shallow groundwater(BIGW) from the deposit. This study is aimed to evaluate and simulate the influence that seasonal variation of water levels and temperatures of the river have an effect on those of BIGW under the pumping condition and also to compare seasonal variation of COPs when indirectly pumped BIGW or directly pumped surface water are used for a water to water heat pump system as an heat source and sink using 3 D flow and heat transport model of Feflow. The result shows that the magnitude influenced to water level of BIGW by fluctuation of river water level in summer and winter is about 48% and 75% of Nakdong river water level separately. Seasonal change of river water temperature is about $23.7^{\circ}C$, on other hand that of BIGW is only $3.8^{\circ}C$. The seasonal temperatures of BIGW are ranged from minimum $14.5^{\circ}C$ in cold winter(January) and maximum $18.3^{\circ}C$ in hot summer(July). It stands for that BIGW is a good source of heat energy for heating and cooling system owing to maintaining quite similar temperature($16^{\circ}C$) of background shallow groundwater. Average COPh in winter time and COPc in summer time of BIGW and surface water are estimated about 3.95, 3.5, and about 6.16 and 4.81 respectively. It clearly indicates that coefficient of performance of heat pump system using BIGW are higher than 12.9% in winter time and 28.1% in summer time in comparision with those of surface water.