• 제목/요약/키워드: Earth construction

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주요 흙 건축재료 현황 및 건축환경 관련 물성 평가에 관한 연구 (The State of the Art and Architectural Environmental Property Evaluation of Earth Construction Material)

  • 송설영;구보경;송승영
    • 한국태양에너지학회 논문집
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    • 제26권4호
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    • pp.83-91
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    • 2006
  • As a demand for sustainable development rises, the preference for earth house (earth construction) increases gradually. However, there are few data for predicting and evaluating the thermal environment and indoor air quality of earth house. Thus, this study aims to measure thermal properties(thermal conductivity, density and specific heat) and pollutants emission intensities(formaldehyde and volatile organic compounds) of current main earth construction materials and make a comparison between earth and cement construction materials. As results, quantitative thermal properties and pollutants emission intensities of current main earth construction materials are shown.

Behavior of Lateral Earth Pressure around the Underpass Constructed by the STS Construction Method

  • Jin, Kyu-Nam;Kim, Hyo-Jin;Sim, Young-Jong
    • 토지주택연구
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    • 제7권4호
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    • pp.271-279
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    • 2016
  • Recently developed trenchless construction methods ensure stability for the ground settlement by inserting steel pipes along the underpass section and integrating steel pipes before ground excavation to form pipe-roof. This study is to confirm the reinforcing effect of pipe-roof by measuring lateral earth pressure acting on the underpass constructed by the STS (Steel Tube Slab) construction method. For this purpose, lateral earth pressure was measured at the left and right side of the pipe-roof after installing earth pressure cells. As a result, lateral earth pressure was measured with considerable reduction because the integrated pipe-roof shared surcharge. Therefore, economic design for the underpass could be expected by sharing design load by pipe-roof. In addition, construction cost was analyzed according to the design-load sharing ratio by pipe-roof. As pipe-roof shares design load by 40%, the total construction cost can decrease by almost 10% in the case of four-lane underpass.

흙건축 공법의 시대적 관점에 따른 조적 및 미장시공 사례분석 (A Case Analysis on the Brickworks and Plastering Works of the Earth Construction according to the Periodical Perspective)

  • 이종국;김철;김태경;김덕문
    • KIEAE Journal
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    • 제8권2호
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    • pp.3-9
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    • 2008
  • We intend to offer theoretical bases of earth construction technology through the analysis of cases of brickworks and plastering works in the city of Gumi, Kyeongsangbukdo. We search for those instances of earth buildings to confirm the trend that earth construction is recognized as environment-friendly, sustainable and newly spotlighted field to alternatives of building construction. We made a frame of analysis through theoretical consideration about earth construction and prior study. Then, we analyzed the selected buildings which is selected by priority in the city of Gumi as authorized preservation value, cultural assets and recently built modern constructions. We found out some problems in structural strength, durability and fire proofing and the invisible development of technologies of earth construction method in this case analysis.

흙타설 벽체의 현장 시공 가능성 검토 (Evaluation as to whether field pour earth wall construction is possible)

  • 황혜주;강남이;양준혁
    • KIEAE Journal
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    • 제12권1호
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    • pp.99-104
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    • 2012
  • In event of selecting construction materials, taking ones found easily around make embodied energy saved. The earth construction could be an eco-friendly engineering from a views of keeping the embodied energy. The pour earth method construction, as one of earth constructions, improves liquidity of earth-mixed properties to build walls or foundations. This study is aimed at evaluating possibilities as to machinery constructions using pumping cars or excavators to be applied on natural non-dried earth which are purchased from sites neighboring to subject building. The study showed that the pumping car used construction was smoothly carried out without any remarkable difficulties and further, a compressed strength was found to keep a certain degree to possibly construct low-story buildings. However, it showed some different levels as to a compressed strength by locations of buildings. In the construction course, we couldn't use remicon plants or a remicon due to field conditions and we are forced to take excavators in compounding or mixing works. But, it is evaluated that actually liquidity or compressed strength will be better than in case of using machineries like remicon plants. These results make us determine that the wall construction using machineries is possible.

고층형 흙다짐 공법의 사례 연구 (A Case Study on the Method of High-rise Wall in Rammed Earth Construction)

  • 이종국;김호천;이상원
    • KIEAE Journal
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    • 제8권3호
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    • pp.85-91
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    • 2008
  • We intends to understand the rammed earth method and suggest the possibilities of adoption on high-rise rammed earth structures through the case study on the method. The rammed earth construction has been regarded as one of the solutions in the modern environmental-friendly construction field, thus according to such trend, this study tries to find out the limitations of the rammed earth structures to be multistory and grope for solutions in the attached wall construction method. The procedures of this research is to figure out the limitations of rammed earth structures through theoretical consideration on those structures and analyze the actual cases of them, and to assure the possibilities on the development of the rammed earth method that can make the structures multistory earthen structures in the rammed earth method and induce immediate issues for it.

시공중 계측을 통한 어스앵커 축력변화 특성사례 연구 (Case Study of Earth Anchor Axial Force Change Characteristic through Monitoring during Construction Period)

  • 김성욱;한병원
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2004년도 춘계학술발표회
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    • pp.285-292
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    • 2004
  • Earth Anchor method as a supporting system is widely used in the large scale deep excavation of urban areas or slope excavation project. Considering the application frequency of that method and catastrophe of that method under unproper construction management, we can find out many problems relevant to the domestic design and construction management of earth anchor method. When we encounter the cases of rapid increments and various decrements in earth anchor axial forces, considering the characteristic of earth anchor method, it is an essential point to catch the reasons and to prepare countermeasures. This article introduces two actual monitoring examples based on the close analyses of measured data in a typical large scale deep excavation project and slope excavation project. One is a rapidly increasing case of earth anchor axial forces with the continuous advance of incremental deformation in a geological layer interface. And another is a decreasing case of earth anchor axial forces with the construction conditions. The effort of this article aims to improve and develop the technique of design and construction in the coming projects having similar ground condition and supporting method.

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생태미학적 관점에서의 지속가능한 흙건축 특성에 관한 연구 - 노자사상을 중심으로 - (A Study on Sustainable Earth Architecture Characteristic from Ecological Aesthetic Point of View - Focus on the thoughts of Lao-tzu -)

  • 김설희;허범팔
    • 한국실내디자인학회논문집
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    • 제20권4호
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    • pp.54-62
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    • 2011
  • Fast industrialization caused from Descartes' dichotomy has enormously developed our world, but endangered the ecosystem. In this study, the ecosystem aesthetics is not only a critique against existing growth-ideology and technical civilization, but also the art pursuing the life as an artistic state and achieving the dream for qualitatively different new future. Lao-tzu's Natural Beauty assumes that the adaptation to natural laws can lead every purpose's achievement. Based on such theoretical alternative, the earth construction as a medium for coexisting mankind, nature and construction interacts with the other objects through the natural affinity, the energy efficiency, the material generation. The earth construction provides the images of naivety, naturalness, folk as well as emotional stability in cultural terms. This study's direction and method are as follows. First, it researches the ecosystem aesthetics from the Taoism viewpoint, the alternative for environmental healing based on theoretical reviews about the ecosystem aesthetics. Second, it researches the earth construction's ecosystem aesthetic features and construction features from the low-tech aspect in continual construction genealogy. Third, it analyzes some cases targeting domestic buildings by drawing out expression methods and features through the connectivity of earth construction and ecosystem aesthetics. The earth construction lies between the heaven and the earth, but coexists in natural cycle. The earth construction caused from ecosystem aesthetics will be a future alterative, and various studies about its features and methods should be continued.

코아링 접지전극의 경년변화 해석 (Analysis on Coring Earth Electrode in Progress of Time)

  • 오성보;김세호;김호찬;부창진;안재현;고성민;고영수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 제37회 하계학술대회 논문집 전기설비
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    • pp.89-90
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    • 2006
  • Recent earth systems not only make earth resistance decreased by installing earth electrode but also are demanded by earth construction for the protection of human life and equipments through total investigation about circumstances. Layer constructions in Jeju island consist of multi-layer of scoria, rocks and shale except clay layers on the surface, which needs the construction of the coring earth electrode suitable in the condition of the area. For this reason, we've used the coring earth electrode. But the coring earth electrode is expected to slow down the performance of this equipment according to the progress of time changing the effects. It is also applied for the stability of earth system construction and management after the construction work analyzing the condition of the earth system. Therefore, this is actually focused on the analysis on measuring the earth resistance and the soil resistivity that cover the range where the remarkable contrast can be expected to be seen in the layer structures.

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분리형 보강토옹벽의 현장계측 및 분석 (Instrumented Field Performance of an Isolated-Reinforced Earth Wall)

  • 김영윤;한경제;김경모
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2000년도 가을 학술발표회 논문집
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    • pp.117-124
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    • 2000
  • As the reinforced earth wall is constructed with step by step backfill compaction method, the accumulative horizontal deformation is inevitable. It has been reported that about 80% of horizontal deformation is occurred during the construction stage of reinforced earth retaining wall. To reduce the horizontal deformation, an isolated-reinforced earth wall method(KOESWall system) was newly developed. In this system, the reinforced earth is constructed first with reinforcements and backfills only, and then facing blocks are installed after the horizontal displacement of reinforced earth is fully occurred. To evaluate the effect of a construction method and the performance of KOESWall system, two cases of full scale field performance was monitored during and after the construction stages.

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태국 매해 지역에서의 지속가능한 건축재료 활용연구 - 흙다짐 공법을 중심으로 - (Usage of Indigenous Material for Sustainable Construction at Mae-Hae, Thailand - Focused on Rammed Earth Method -)

  • 김두순;정상모
    • KIEAE Journal
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    • 제13권2호
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    • pp.33-38
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    • 2013
  • Limited resources for construction material in the Mae-Hae region, a remote Northern Thailand, acted as an impetus to introduce a new way for constructing their dwellings. The new construction material brought new construction methodology, namely, using earth and bamboo which are indigenous materials, readily available for them to use. Using indigenous material at Mae-Hae region was most ecological and logical method for establishing sustainable dwellings both in terms of monetary and ecological reasons. Prior to the construction at Mae-Hae, Thailand, series of experimental tests on the strength of rammed earth were performed off site at our university and also brought soil samples from the actual job site at Mae-Hae for detailed soil analysis. Through the tests, integrity of the earth and characteristics of the soil were established to build a small senior citizen center as an example. This appropriate technology is expected to contribute to the sustainable construction at Mae-Hae.