• 제목, 요약, 키워드: Field applicability

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레드머드를 활용한 알칼리 활성화 흙포장재 현장 적용성 평가에 관한 연구 (A Study on the Field Applicability Evaluation Alali-Activated Soil Mixed Pavement using Red Mud)

  • 강혜주;이영원;오두연;이규영;김대봉;강석표
    • 한국건축시공학회:학술대회논문집
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    • pp.96-97
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    • 2015
  • In this search, by evaluating the field applicability of soil mixed pavement of Red mud is mixed into the soil mixed pavement field applicability, and tries to present the basic data about the site application of recycling of red mud and low carbon construction material to. As a result, the conventional soil concrete organization standards (SPS-KSCICO-001: 2003) meets the criteria for a bicycle road, making use of red mud, natural color as well as the natural loess is expressed.

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Improvement of the PVC Window Frame Installation Method Integrated with Gangform and Field Applicability Analysis

  • Choi, Hyo-Sung;Lee, Jeong-Ho;Yoo, Huyn-Seok;Kim, Young-Suk;Han, Seung-Woo
    • 한국건축시공학회지
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    • v.11 no.5
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    • pp.482-500
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    • 2011
  • In apartment housing construction, window frame installation work, which is conducted after the structural framework, is very important, because its completion time directly affects the starting time of successive interior finishing works, as well as the overall construction period. Construction delays in interior finishing works might occur due to problems inherent to the conventional window frame installation method, such as the poor verticality of window frames, and the water leakage around them. The primary objective of this study is to analyze the problems of a 'Gangform integrated PVC window frame pre-installation method' based on its pilot test results. Next, this study proposes an improved conceptual model that enables the end users to enhance the field applicability of this method in terms of productivity, time, and cost. The field applicability of the proposed 'Gangform integrated PVC window frame pre-installation method' was also verified through a survey.

소수성 특성을 이용한 저점도 AP 표면처리재의 현장 적용성 연구 (A Study on Field Applicability Evaluation of the Hydrophobic - Low Viscosity Surface Treatment Material for Pavement Preventive Maintenance)

  • 최준성
    • 한국도로학회논문집
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    • v.16 no.1
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    • pp.31-39
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    • 2014
  • PURPOSES : Surface treatment material for pavement preventive maintenance should be inspected field applicability. This study(Part II) aimed to checkup coating characteristics and performance analysis using lab and field tests. The hydrophobic - low viscosity filling material for pavement preventive maintenance is presented in Part I, which is a series of companion study. METHODS : Relative comparison between general asphalt mixtures and surface treatment asphalt mixtures are analyzed and measured for the field application such as indirect tensile strength ratio(TSR), abrasion resistance, crack propagation resistance, temperature resistance, coating thickness, permeability resistance and skid resistance in terms of british pendulum number(BPN). RESULTS : It is found that TSR, crack propagation resistance and permeability resistance is increased as against uncoated asphalt specimen. Abrasion resistance and temperature resistance is secured from the initial coating thickness point of view, which is about 0.2~0.3mm. Skid resistance on the surface treatment pavement is satisfied with the BPN criteria of national highway because of exposed aggregate and crack sill induced pavement deterioration and damage cracks. CONCLUSIONS : The hydrophobic - low viscosity surface treatment material for pavement preventive maintenance is validated on field applicability evaluation based on quantitative analysis of coating thickness and performance analysis using lab and field tests.

현장 시험시공을 통한 대나무 쏘일네일링공법의 적용성에 관한 연구 (A Study on the Application of Bamboo Soil Nailing System through Experimental Construction)

  • 방윤경;양영훈;서지원;유남재;김홍택
    • 한국지반환경공학회 논문집
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    • v.16 no.3
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    • pp.23-34
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    • 2015
  • 본 연구에서는 대나무 쏘일네일링공법(Bamboo Soil Nailing System)을 개발하고, 이를 검증하기 위한 현장 시험시공 및 실내시험을 실시하였다. 대나무의 공학적 특성 시험과 현장계측 및 현장 인발시험 등을 수행하여 제안된 공법의 실용화를 위한 적용성을 분석하였다. 시험시공의 적정성 판단을 위해 실험조건을 반영한 수치해석을 통해 현장시험 계측결과와 비교 검증을 수행하였다. 현장계측 및 유한요소해석결과, 정량적 수치에서 차이를 보였지만 발생변위의 형태와 쏘일네일링공법간의 발생 변위량 차이가 크지 않다는 점에서 일치하는 결과를 나타내었다. 본 연구결과를 토대로 비교적 높지 않은 굴착지반에서 대나무 쏘일네일링공법의 적용성을 검증하였으며, 설계 예를 통해 대나무의 직경 변화에 따라 소요의 안전율을 만족하는 대나무 쏘일네일링의 설계 및 시공이 가능할 것으로 판단되었다.

현장 굴진자료 분석에 의한 TBM 성능예측모델의 적용성 평가 (Evaluation of the applicability of TBM performance prediction models based on field data)

  • 오기열;장수호;김상환
    • 한국지반공학회:학술대회논문집
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    • pp.803-812
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    • 2008
  • Along with the increasing demand for automatic and mechanical tunnel excavation methods in Korea, the Tunnel Boring Machine (TBM) method of tunnel excavation has become increasingly popular. However, in spite of this rising demand, few studies have been performed on the TBM method, in Korea. For this reason, this study focused on evaluation of the applicability of TBM performance prediction models based on field data in order to contribute to the basic and essential parts of TBM designation and the TBM method of tunnel excavation in Korea. These rock properties can be defined as the mechanical and physical factors of rock that have an influence on a disc cutter's ability to cut rock, and provide information for the evaluation of the applicability of field data. Based on outcomes from these tests, applicability of the prediction model was evaluated and the predicted performance of a TBM was compared with real field data obtained from four different TBM construction sites in Korea.

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아스팔트 프리캐스트 포트홀 보수재료의 선정과 현장 적용성에 관한 연구 (A Study for Selection and Field Applicability of Asphalt Precast Pothole Repair Materials)

  • 김진철;배성호;이진호;양재봉;김지원
    • 한국도로학회논문집
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    • v.16 no.4
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    • pp.21-33
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    • 2014
  • PURPOSES: The purpose of this study was to break away from the workforce method using cold-mix asphalt mixtures and has a constant quality and has develop repair materials of pre-production asphalt-precast types. METHODS: The selection of the repair material was determined as the results obtained through physical properties of materials and the field applicability. In case of repair materials, values obtained through Marshall stability test & the dynamic stability test & retained stability test as well as the site conditions was considered. In case of adhesive, test results were obtained through examination of the bond strength(tensile, shear) and the field applicability of the adhesive was examined through combined specimens to simulate field applications. RESULTS : According to the results of laboratory tests, in the case of repair materials, Marshall stability and dynamic stability, retained stability of cold-mix reaction type asphalt mixture is the highest. In the case of adhesive, two-component epoxy-urea has a very high bonding strength(tensile, shear) was most excellent. According to the results of field tests, when epoxy-urea was excellent workability. Also, the repair body through actual mock-up test did not occur large deformation and fracture after 12 months. CONCLUSIONS : A suitable repair material is cold-mix reaction type mixture of asphalt-precast, a suitable adhesive is a two-component epoxy-urea.

풍쇄전로슬래그의 연직배수재 활용성에 관한 실험적 연구 (An Experimental Study on the Applicability of Converter Slag by wind fracture as Vertical Drains)

  • 권정근;임종철;박이근
    • 한국지반공학회:학술대회논문집
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    • pp.1132-1141
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    • 2006
  • Recently it is difficult to secure sand used in the improvement of soft ground, and so it is necessary to find alternative materials. For this reason many researchers are studying and trying to find new substitute materials. One of the materials is considered as converter slag by wind fracture which is generated in the production of steel manufacture by electric circuit. It is environment friendly since it is a recycled material and economical since it is cheaper than sand. To investigate the applicability of converter slag by wind fracture as the alternative material such as vertical drains, it is necessary to check the drainage effect of this in the field construction. In order to attain an successful design it is important to predict problems encountered in field construction. Accordingly, in this study the laboratory test was executed under different conditions in advance of applying of the field. A total of 4 cases including slag, sand+slag, pack slag and sand as vertical drains was conducted, and at the base of the laboratory test the field test was executed and analyzed.

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숏크리트 타설시험기 개발 및 적용성 검토 (The Study on Development and Applicability of Shotcrete Shotting Test Machine)

  • 강은구;마상준
    • 한국지반공학회:학술대회논문집
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    • pp.1333-1342
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    • 2010
  • It required excessive cost and effort to evaluate the quality of shotcrete mix for field test. Also, due to a myriad of field variables, it is difficult to get a standardized result for field test. And it is impossible to simulate the shotting process for indoor test. In this study, in order to overcome these problems, we developed a standardized Shotcrete Shotting Test Machine. Using this machine we performed shotcrete quality test and estimated the applicability of developed Shotcrete Shotting Test Machine by comparing with the results of field test.

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개발형 레일체결장치의 현장적용성 평가를 위한 실험적 연구 (Experiment research on Field Applicability Evaluation of rail fastening system)

  • 김은;강윤석;이일화;양신추
    • 한국철도학회:학술대회논문집
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    • pp.141-145
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    • 2003
  • Step-by-step laboratory performance test and repetitive improvement of KRRI rail fastening system show that it has the similar capability as other fastening systems that have been globally used. In this study, for the evaluation of field applicability, construction and rolling-stock operation test of KRRI rail fastening system are performed. Through this approach, comparison against the service criteria of foreign countries are made.

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바람장 및 Fingerprint를 이용한 악취추적기법 활용가능성 평가 (Applicability Investigation for the Odor Source Tracking Approach using the Wind Field and the Fingerprinting)

  • 나경호;박용출;장영기
    • 한국대기환경학회지
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    • v.23 no.1
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    • pp.1-13
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    • 2007
  • This study was carried out to evaluate the applicability of the odor source tracking using wind field and fingerprint as a solution tool. First of all, CALMET and HYSPLIT modeling system, and database of odor discharge companies were utilized to track odor from industrial complexes. Secondly, industrial odor fingerprint was made by listing on the 19 domestic industries, and compared with foreign data to assess the representative, and thus the similarity was 86.7%. On the modeling experiment, Sihwa industrial complex did not show any difference because the matching rates of day and night were 49.5% and 50.0%, respectively. However, the Banwol and Sihwa industrial complexes did show some differences due to odor facility density. Separately, in this study, odor samples were obtained from 10 odor discharging companies, located in the Sihwa and Banwol industrial complexes, They were compared with the results of odor tracking modeling. The matched companies were 4 of 10 by three cases of tracking, while the fingerprint and industry of odor monitoring networks and companies matched each other. Therefore, this study confirmed the approach applicability of source tracking system using the fingerprint.