• 제목/요약/키워드: Cutting Slope

검색결과 196건 처리시간 0.026초

도로비탈면의 환경인자를 고려한 식생구조분석에 관한 연구 (A Study on the Revegetation Structural Analysis for Environment Factor of Road Slope)

  • 전기성
    • 한국환경복원기술학회지
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    • 제7권2호
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    • pp.12-20
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    • 2004
  • This study was carried out from January 1998 to December 1999 to report the revegetation of cutting-rock slopes and a design standard in the highway cut-slopes. The field data was collected from the 67 sites cutting-rock slopes of highways, local roads, and field test. As the result of analyze, cutting-rock slopes revegetation measures were 16 types. There were Vine planting(3 types), Hydroseeding measures with seed-fertilizer-soil materials(5 types), Vegetaion-base spraying measures(5 types), and Stability measures(3 types). The factors affecting the plant coverage rates of cutting-rock slopes were the slope gradient, the slope width and direction. The plant coverage rate decreases in the condition of steep slope and long slope width and length(height). In addition, the plant coverage rates of the westward and southward were lower than that of the northward and eastward. Most dominant species were Zoysia japonica, Lespedeza cyrtobotrya, Lespedeza cuneata, Rubus crataegifolius, Miscanthus sinensis, Arrundinella hirta, Themeda triandra, and Oenothera odorata. Exotic species were Eragrostis curvula(Weeping lovegrass), Dactylis glomerata Orchardgrass), Lolium perenne(Perennial ryegrass), and Festuca arundinacea(Tall fescue). It is recommended to adjust the proposed factor as environment, topsoil, classification of rock, field condition and characteristic related with revegetation measures on slopes for the presentation of revegetation standard.

비탈면 녹화공법의 유형분석과 개선방안 연구 (A Study of Improvement Method and Analysis of Type of Revegetation Measures of Rock Slopes)

  • 전기성
    • 한국환경복원기술학회지
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    • 제5권5호
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    • pp.22-29
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    • 2002
  • This study was conducted to suggest develop revegetation methods and to classification of cutting-rock slopes revegetation type. The data was collected from pre-experienced data, reports and journal. Also research result was reflected from field research for the conditions of construction, vegetation types and field conditions. As the result of analyze, the factors affecting the plant coverage rates of cutting-rock slopes were period of construction, revegetation methods, slope gradient and slope length. Classification of cutting-rock slopes revegetation type was fourth from material of revegetation measures and spray type. It is recommended to adjust the proposed factor as environment, field condition and characteristic related with revegetation measures on slopes for the presentation of revegetation standard.

부산 신항만 욕망산 경관계획 (Mt. Yokmang Landscape Planning in Busan New Port)

  • 김충식
    • 한국조경학회지
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    • 제33권6호
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    • pp.127-139
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    • 2006
  • Mt. Yokmang landscape design awarded first in [North container terminal site furtherance construction in Busan new port], design competition sponsoring in the Korea Container Terminal Authority in 2005. Design guideline was to propose the symbol of new port and to establish landscape plan in consideration of view and geological location. Because landscape plan required establishment of restoration plan for cutting slope, Mt. Yokmang became the major object. The purpose of planning are as follows. The first purpose is to minimize existent natural environment damage, and the second, to connect with ambit and create new image. The third is to provide place of rest and interchange for local resident. Reflecting stratum structure and landscape characteristics, cutting slope consisted of [utilization slope], [presentation slope], [landscape slope], and [ecological slope]. Vegetation design applied ecological restoration method through restoration of stratum, and eve environment-friendly afforestation, planned program that can connect area with existing ecosystem. In process that decides form of the cutting slope, analyze view structure and visual exposure in various access routes, sensitivity etc. was accomplished. Also, symbolic tower(Ocean Polaris) that presents in architecture and landscaping features, night landscape planning could gain synergy effect by keeping consistence with landscape and ecological planning. Passing through final design and construction process, I expect that the Mt. Yokmang will be a new landmark in Busan new port.

집중호우로 붕괴된 절토부 사면의 사면안정 처리에 관한 연구 (A Study on Failed Slope Stability by Localized Torrential Downpour)

  • 신희순;배규진;이승호;정용진;심정훈
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2003년도 봄 학술발표회 논문집
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    • pp.137-144
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    • 2003
  • Continuous road improvement is required by situation that need link between cities by special quality that is our country's topography enemy that most of country have consisted to mountain district. According to this, occurrence of large cutting slope is formed necessarily Cutting slope are very weak real condition because of concentrative downpour and can know easily by example of typhoon Rusa. This study did helpful in slope design and carrying out suitable reinforcing method.

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임도구조 요인에 따른 절토비탈면 안정구조물의 특성 (Characteristics on Stabilization Measures for Cutting Slopes of Forest Roads)

  • 백승안;지병윤;이준;차두송
    • Journal of Forest and Environmental Science
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    • 제30권1호
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    • pp.71-75
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    • 2014
  • Forest roads failure is one of the most common problems caused by heavy rainfalls. This study investigated the characteristics on stabilization measures installed for cutting slopes failure of forest road resulted from heavy rainfalls. Three primary factors (slope length, slope gradient, soil type) affecting cutting slope failure were considered and stabilization measures were classified into two types (A type: wooden fence, vegetation sandbag, stone masonry; B type: wire cylinder, gabion, concrete retaining wall) through discriminant analysis based on their capacity of resistance to slope failure. Results showed that A type was mainly installed in such conditions as cut slope <8 m, cut slope gradient $30-40^{\circ}$ and soil type with soil while B type occurred in locational conditions as cut slope length >8 m, cut slope gradient < $30^{\circ}$ and > $30^{\circ}$, and soil type of gravelly soil and rock.

3차원 사면안정해석을 이용한 활동지괴 가장자리부의 전단저항에 관한 연구 (A Study on Shear Resistance Effect along Marginal Region of Sliding Mass using 3D Slope Stability Analysis)

  • 서용석;태전영장;채병곤;윤운상
    • 지질공학
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    • 제14권4호
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    • pp.451-460
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    • 2004
  • 사면안정해석에 일반적으로 이용되는 2차원 한계평형해석에서는 활동면의 강도를 활동면 전체에 동일하게 설정한다. 그러나 사면의 활동면에서 저면부와 가장자리부의 강도는 다른 경우가 대부분이다. 4가지 절취모델을 이용한 3차원 사면안정해석의 결과에 따르면 활동면내에서 가장자리부의 저항력이 사면의 안정성에 크게 영향을 미치는 것으로 나타났다. 3차원 사면안정해석에서 활동면 강도를 저면부와 가장자리부로 구분하여 설정함으로써 지금까지 고려하지 못했던 사면 가장자리부의 전단강도가 사면안정에 미치는 영향을 정량적으로 파악할 수 있었다. 활동 저면부의 저항력이 낮은 경우에는 사면의 측부 절토에 의하여 안전율이 크게 저하되며, 저항력이 높은 경우에는 말단부 절토에 의하여 안전율이 저하되고 두부 절토에 의하여 안전율이 향상된다.

화강풍화암 및 풍화토층 지역 깍기 비탈면의 안정성 검토 사례 연구 (A Case Study on the Stability Analysis of a Cutting Slope Composed of Weathered Granite and Soil)

  • 한공창;류동우;천대성;홍은수
    • 터널과지하공간
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    • 제18권4호
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    • pp.289-299
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    • 2008
  • 화강풍화암 및 풍화토층 깍기 비탈면의 붕괴 원인 분석을 위해 수행한 안정성 검토 사례를 통해 화강암을 모암으로 하는 지역에 폭넓게 분포하는 화강풍화암 및 풍화토 깍기 비탈면 설계 시 유념해야 할 사항들을 살펴보았다. 지질 및 지반 조사를 통한 지반특성 파악하였으며 한계평형해석 및 수치해석을 통한 안전율 검토, 강우 및 파괴 이력 비교 분석 등 일련의과정을 비탈면 안정성 검토를 위해 수행하였다. 대상 지역 깍기 비탈면의 안정성 검토 결과로서 비탈면의 붕괴 원인은 주로 집중 강우 시 지반조건상 연약한 상부 지반에서의 전단강도 감소에 기인함을 알 수 있었다. 또한, 지하수 유입 경로와도 밀접한 관련이 있는 것으로 분석되었으며, 이를 기초로 비탈면의 안정화를 위한 대책공을 제시하였다.

GIS를 이용한 도로 사면의 위험성 분석 (A Risk Analysis of Road Slopes Using GIS)

  • 김용성
    • 한국농공학회논문집
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    • 제46권5호
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    • pp.117-127
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    • 2004
  • A risk analysis on the cutting slope of roads near Cheongju area was carried out with the data from geological map, field investigation, and laboratory test and with the Geographic Information System. A risk analysis method on the cutting slope of road using the Geographic Information System was developed with the data from geological map, field investigation and laboratory tests. In the GIS, road factors which are safety factor, class of road, slake index, slope-protection works, and height of slope in the cutting slopes are classified into some ranks, and their weighting factors were taken into account. This method can be applied effectively to a road management.

도로건설사업 시 지형 훼손 최소화를 위한 절·성토 높이 기준 연구 (A Study on the Standard of Cutting and Filling Height to Minimize Topographical Damage in Road Side Construction)

  • 김미리;김수련;신지훈;성현찬
    • 한국조경학회지
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    • 제42권1호
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    • pp.115-122
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    • 2014
  • 본 연구의 목적은 경기도 도로건설사업의 환경영향평가서를 대상으로 도로 건설시 절 성토 높이와 비탈면 높이와의 관계를 분석하고, 도로 건설사업 시 지형적 훼손을 최소화할 수 있는 합리적인 비탈면 높이 기준을 제시하는 데에 있다. 이를 위해 도로건설사업 환경영향평가서 내 비탈면 높이와 관련된 전문가 의견이 제시된 44개의 사례를 검토하고, 그 중에서 절 성토고 높이에 관해 언급된 23개의 사례를 추출하여 분석에 활용하였다. 본 연구의 결과를 요약하면 다음과 같다. 환경영향평가서 상에 제시된 대부분의 절 성토 높이 및 비탈면 높이는 기준 높이인 20~30m(성토 높이), 그리고 10~15m(절토 높이)를 초과하고 있으며, 도로변의 절 성토 높이가 비탈면의 높이와 높은 상관관계가 있다는 것을 보여주고 있다. 그리고 회귀분석 결과에 따르면 각각의 절 성토 높이는 절토 높이의 경우 25.33~33.23m, 성토 높이의 경우 14.56~18.08m로 나타났으며, 이러한 높이 기준은 일반적인 높이 기준보다 높은 것으로 나타나, 향후 환경영향평가서 검토 시에 충분히 고려되어야할 사항으로 판단된다. 본 연구는 환경영향평가서에 제시된 절 성토 높이 및 비탈면 높이만을 고려하고 있어, 실제 제안된 높이가 지형 훼손을 최소화할 수 있는지에 대한 검증은 불가능하였으며, 따라서 본 연구에서 제시된 높이 기준을 바탕으로 비탈면 높이에 대한 친환경성 검증을 위한 심층적인 연구가 진행될 필요가 있다.

Risk identification, assessment and monitoring design of high cutting loess slope in heavy haul railway

  • Zhang, Qian;Gao, Yang;Zhang, Hai-xia;Xu, Fei;Li, Feng
    • Structural Monitoring and Maintenance
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    • 제5권1호
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    • pp.67-78
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    • 2018
  • The stability of cutting slope influences the safety of railway operation, and how to identify the stability of the slope quickly and determine the rational monitoring plan is a pressing problem at present. In this study, the attribute recognition model of risk assessment for high cutting slope stability in the heavy haul railway is established based on attribute mathematics theory, followed by the consequent monitoring scheme design. Firstly, based on comprehensive analysis on the risk factors of heavy haul railway loess slope, collapsibility, tectonic feature, slope shape, rainfall, vegetation conditions, train speed are selected as the indexes of the risk assessment, and the grading criteria of each index is established. Meanwhile, the weights of the assessment indexes are determined by AHP judgment matrix. Secondly, The attribute measurement functions are given to compute attribute measurement of single index and synthetic attribute, and the attribute recognition model was used to assess the risk of a typical heavy haul railway loess slope, Finally, according to the risk assessment results, the monitoring content and method of this loess slope were determined to avoid geological disasters and ensure the security of the railway infrastructure. This attribute identification- risk assessment- monitoring design mode could provide an effective way for the risk assessment and control of heavy haul railway in the loess plateau.