• 제목/요약/키워드: reclaimed

검색결과 1,229건 처리시간 0.039초

LANDSAT TM 영상에 의한 난지도 매립지의 발생열 분포해석 (Analysis for the Distribution of the Heat Generated on a Nanji Waste Landfill in Using Landsat TM Image)

  • 양인태;김만덕;윤범한;김연준
    • 환경영향평가
    • /
    • 제4권2호
    • /
    • pp.59-70
    • /
    • 1995
  • The solution-state of a reclaimed waste would be known to the method in using an analysis for seepage. But it is not the best method in the huge landfill reclaimed all kinds of the waste at random. Especially in case of the landfill called the Nan Gi-do located along the Han-river, it is difficult to judge the generative seepage to be flowed in to the Han-river. So to plan the effective stabilization on a landfill, it is very useful survey method using the Landsat TM image. Operating a heat-distribution analysis with the Landsat TM image, in case of a landfill not having definite data, we would assume the reclaimed sections of the waste to judge a solution-speed late comparatively such as a industry waste or a harmful waste through the heat change.

  • PDF

해안매립지에 위치한 콘크리트구조물의 염해조사 (Investigation of Salt Attack of Concrete Structures Exposed to Reclaimed Marine Land)

  • 김성수;정란;김영웅;김용철;박광필
    • 한국콘크리트학회:학술대회논문집
    • /
    • 한국콘크리트학회 2002년도 가을 학술발표회 논문집
    • /
    • pp.835-840
    • /
    • 2002
  • Chloride ions have a tendency to penetrate into concrete and proceed the corrosion by depassivating rebar surface. Thus tire deteriorated concrete is subject to experience severe degrading of durability under marine environment. In this study, concrete structures exposed to reclaimed marine land wet-e investigate to find out the salt attack along with analysis and review of it's cause. Under the reclaimed marine land, the main causes of deterioration of concrete structures is the steel corrosion due to the Penetration of chlorides and the deterioration of outer concrete itself by chemical attack.

  • PDF

군장국가산단(장항지구) 호안 설계 (Design of Seawall at Jang-Hang Area)

  • 권오기;고장희;남세현;김성구
    • 한국방재학회:학술대회논문집
    • /
    • 한국방재학회 2007년도 정기총회 및 학술발표대회
    • /
    • pp.399-402
    • /
    • 2007
  • This project is the 1st. stage for the foreshore reclamation at Jang-Hang area and its scope is to construct a seawall as outer facilities, road adjacent to the seawall and drainage gate. for the safe protections of the facilities at the reclaimed land hereafter, we adopted the mild slope rubble mound type for the seawall structure which was excellent in interrupting the wave overtopping, as a result of numerical & hydraulic model test about alternative 4 sections. For the flooding prevention of the reclaimed land, we planned the drainage system that could make the flood water level lower than the reclaimed land level. Also, we planned the eco-friendly waterfront area with 8 nature themes through the whole seawall sections.

  • PDF

干拓地 植物의 無機營養素 蓄積에 對하여 (On the Accumulation of Minerals with the Plant Species in a Reclaimed Land)

  • Min, Byeong Mee
    • The Korean Journal of Ecology
    • /
    • 제13권1호
    • /
    • pp.9-18
    • /
    • 1990
  • For reaserching the factors of plants micro-distribution, accumulation of 5 minerals-total-nitrogen, phosphorus, potassium, sodium and calcium-for 19 plant species was investigated in reclaimed land, in western coast of Korea, In the five minerals, sodium contents were quite different among the species. Plant species were divided into 4 groups based on the sodium accumulation and accumulation site in plant tissue: Na accumultion type above-ground part>below-ground part : Triglochin maritimum, Chenopodium virgatum, Atriplex subcordata, Salicornia herbacea, Suaeda japonica, suaeda asparagoides, Limonium tetragonum, Aster tripolium, Artemisia scoparia, Sonchus brachyotus above-ground partbelow-ground part : Zoysia sinica, amagrostis epigeiosa bove-ground part

  • PDF

간척지 토양의 제염예측 프로그램 개발 (Development of Prediction Techniques for Desalinization in Reclaimed Tidelands)

  • 구자웅;손재권;최진규;이동욱;송재도
    • 농촌계획
    • /
    • 제8권3호
    • /
    • pp.33-40
    • /
    • 2002
  • The PTDRT model as prediction techniques for desalinization in reclaimed tidelands was developed and verified whether it is applicable to reclaimed tidelands at the beginning stage. The changes of salt concentration during desalinization, the water requirements and period required for desalinization, were simulated according to soil properties and desalinization methods by repression analyses. The program was also designed to systematize input data and analysis data associated with desalinization, and to confirm the results by a graphic form. All input data and the results can be printed after the form of a typical report.

간척지 염해토양의 Phytoremediation에 의한 제염 (Desalinization of Salt-affected Soil by Phytoremediation)

  • 손재권;송재도;신원태;이수환;류진희;조재영
    • 한국유기농업학회지
    • /
    • 제24권3호
    • /
    • pp.583-598
    • /
    • 2016
  • Salted-affected soil is a major environmental constraint with severe negative impacts on agricultural productivity and sustainability in reclaimed tidelands. This review focuses on the phytoremediation of reclaimed tidelands. We address the process of phytoremediation of these soils, comparison of phytoremediation with other amelioration approaches, driving forces contributing to the process, selection of phytoremediation crops, and the role of cropping in securing environmental integrity under salt-affected soils.

매립 지반에서의 지진파 증폭 특성 (Seismic Motion Amplification Characteristics at Reclaimed Ground)

  • 김용성;김기영;전제성
    • 한국농공학회논문집
    • /
    • 제47권5호
    • /
    • pp.51-61
    • /
    • 2005
  • In this study, borehole records were analyzed to verify the amplification of seismic motion at the soft reclaimed ground before and after the main event of the 1995 Hyogoken Nambu Earthquake at Port Island, Japan. From the analysis, it was shown that the amplification of seismic motion occurred near the soft ground surface (within 30 m below) where confining stress is low. Moreover, it was found that recovery of dynamic soil stiffness at the liquefied ground began gradually 3 hours after the liquefaction and completed in 10 days, when the ground exhibited the same seismic motion characteristics as those before the liquefaction.

우리나라 서남해안 간척지 및 간석지 토양의 화학적 특성 (III) -질소의 형태별 함량 분포- (Chemical Properties in the Soils of Reclaimed and Natural Tidelands of Southwest Coastal Area of Korea (III) - Distribution of Nitrogens Fractions -)

  • 조재영;구자웅;손재권
    • 한국농공학회논문집
    • /
    • 제48권3호
    • /
    • pp.3-8
    • /
    • 2006
  • The fractions of nitrogen were investigated in the soils of reclaimed and natural tidelands of southwest coastal area of Korea. The content of total-N varied to ranged form 619 to 5,534 mg/kg dry weight with a mean value of 1,857 mg/kg. The order of different fractions of nitrogen was as follows: Acid non-extractable-N > uncounted-N > acid extractable-N > ammonia-N > nitrate-N. The content of ammonia-N, acid extractable-N, and acid non-extractable-N showed highly negative correlations with pH. The content of acid extractable-N and ammonia-N showed highly positive correlation with clay content.

간척지 토양의 제염예측 프로그램 개발 (Development of Prediction Techniques of Desalinization in Reclaimed Tidelands)

  • 구자웅;최진규;손재권;이동욱
    • 한국농공학회:학술대회논문집
    • /
    • 한국농공학회 2001년도 학술발표회 발표논문집
    • /
    • pp.51-58
    • /
    • 2001
  • The PTDRT model as prediction techniques of desalinization in reclaimed tidelands was developed and verified in order to be applicable to reclaimed tidelands at the beginning stage. In this model, the changes of salt concentration during desalinization, the water requirements and period required for desalinization, were simulated according to soil properties and desalinization methods by regression analyses. This program was also designed to systematize input data and analysis data associated with desalinization, and to confirm the results by a graphic form. All input data and the results are able to be printed after the form of a typical report.

  • PDF

새만금 간척지토양의 벼생육과정중 전기전도도 분석 (Analysis of Electrical Conductivity during the Growing Period in Saemangum Recaliamed Tidal Lands)

  • 손재권;최진규;구자웅;송재도;김영주
    • 한국농공학회:학술대회논문집
    • /
    • 한국농공학회 2003년도 학술발표논문집
    • /
    • pp.79-82
    • /
    • 2003
  • This study was performed in order to analyze the changes of electrical conductivity during the growing period in Saemangum reclaimed tidal lands soils. According to USDA Salinity Laboratory classification system of salt affected soils, the reclaimed tidal land soils used in this study were saline-sodic soils. As the results obtained from analying the changes of electrical conductivity(EC) during the growing period in reclaimed tidal land soils, EC of irrigation water and soils were no difference among the fertilization quanity, fertilization method and fertilization times.

  • PDF