• Title/Summary/Keyword: construction fence

Search Result 58, Processing Time 0.024 seconds

Integrated Analytical-Numerical Approach to Compute the Energy on Rock-fall Protection Fence (해석적-수치해석적 방법을 통한 낙석방지울타리에 작용하는 에너지 분석)

  • Kim, Hee Su;Hwang, Youngcheol;Jang, Hyun-Ick;Ban, Hoki
    • Journal of the Korean GEO-environmental Society
    • /
    • v.20 no.12
    • /
    • pp.57-64
    • /
    • 2019
  • A man-made slope has been increased due to the construction of road. This slope lies at risk of rock falling, induced mostly by heavy rainfall. The MOLIT (Ministry of Land, Infrastructure and Transport) recommends the specific dimension of rockfall protection fence (post, wire-rope, and mesh) which should resist 48~61 kJ. However, the energy absorption capacity of each component of rockfall protection fence is not clearly presented. Hence, this study made an effort to compute the energy absorption capacity of each component in analytical and numerical method, and compared with each other.

The role of design in civil construction site "Walk good!"-Singapore MRT No. 2 subway line Construction fence Design project (토목공사 현장에서 디자인의 역할 "Walk good!"-싱가포르 도시철도(MRT) 2호선 산사태방지 지지기반 펜스 디자인 프로젝트)

  • Liu, Chang;Ahn, Byoung-Jin
    • Proceedings of the Korea Contents Association Conference
    • /
    • 2012.05a
    • /
    • pp.125-126
    • /
    • 2012
  • 최근 몇 년 사이 공사현장의 미관 개선을 위하여 단순 기능적인 요소로 인식되었던 공사장 펜스에 공공디자인을 통한 환경그래픽을 적용 하는 사례가 빈번해지고 있다. 따라서 본 연구는 2010년 동서대 퍼블릭디자인 앤 라이팅연구소가 싱가포르 도시철도 공사현장의 펜스에 적용한 디자인프로젝트에 관한 연구이다.

  • PDF

Assessment of Fence Height to Prevent Roadkill of Water Deer(Hydropotes inermis) (고라니(Hydropotes inermis)의 로드킬(Roadkill) 방지 울타리 적정 높이 평가)

  • Park, Heebok;Woo, Donggul;Song, Eui-Geun;Lim, Anya;Lee, Bae-Keun;Jang, Ji-Deok;Park, Tae-Jin;Choi, Tae-Young
    • Journal of Environmental Impact Assessment
    • /
    • v.27 no.2
    • /
    • pp.232-239
    • /
    • 2018
  • Our study aims to provide a guideline of deer-proof fence heights to prevent roadkill of water deer (Hydropotes inermis), the most frequently killed by a vehicle collision, in South Korea. With 27 water deer in deer ecology center of the National Institute of Ecology, we measured the ability of water deer to jump gradually higher fences from 0.5cm by 10cm until the deterrence rate reached 100%. Ourresultrevealed that the deterrence rate became 96.7% at the fence height of 1.5m and the rate reached 100% at the 1.8m. We believe that our result provides the fundamental information to prepare a standard of deer-proof fence height. This evidence-based standard will contribute to improving the guideline for wildlife crossing construction and management, established by Ministry of Environment Korea.

Estimation of installation spacing by analyzing the lateral behavior of the safety fence fixed to rail bottom (레일저부고정형 안전펜스의 횡 방향 거동 분석을 통한 설치간격 산정)

  • Park, Seonghyeon;Sung, Deokyong;Lee, Changho;Jung, Hyuksang;Youg, Seungkyong
    • Journal of The Korean Society For Urban Railway
    • /
    • v.6 no.4
    • /
    • pp.249-257
    • /
    • 2018
  • The number of deaths for railway traffic accidents is mainly caused by working close to the track, or when unauthorized passage pass through the track. The safety fences are being used to ensure safety for workers close to the track, and to improve the efficiency of the work, without interfering with the passage of trains. However, a safety fence for railway tracks needs to be examined to see if it will interfere with the passage of trains. The purpose of this study is to analyze the safe distance between train and safety fence developed in Korea. In addition, the lateral load condition of wind pressure by trains is estimated and numerical analysis is carried out according to the installation intervals of railway safety fences. It has been confirmed that the proper spacing between the train and the railway safety fence should be at least 200 mm from the vehicle limit, and that the proper spacing of railway safety fence must be calculated in consideration of the wind pressure by trains.

A Study The Structural Stability of the Fence Ohgokmun Soswaewon Factor Analysis (소쇄원 오곡문 담장의 구조적 안정에 미치는 요인 분석)

  • Jang, Ik-Sik;Jeon, Hyeong-Soon;Ha, Tae Ju;Lee, Jae-Keun
    • Journal of the Korean Institute of Traditional Landscape Architecture
    • /
    • v.31 no.4
    • /
    • pp.113-122
    • /
    • 2013
  • In this study, the traditional structure of the impact on the stability analysis. Korean traditional landscape architecture column space of stonework stable composition as the foundation of the fence for a long time been known to fall down and not maintained. The destination of research Ohgokmun Damyang Soswaewon fence which is in harmony with nature is one of the traditional structures that affect its shape without being kept so far came true. This includes our ancestral wisdom and that wisdom can guess guesswork. But I let the traditional reproduction incidence structures frequently. This deviation from the traditional method of construction application of shorthand stand. Thus, the subject of this study, the factors that do not fall down fences Ohgokmun solution is to indirectly gain the weak. In addition, epidemiological studies and the methods of calculation of the inferred physical examination, the results of the analysis were derived through the following. First, the internal factors of the fence Ohgokmun constituting the structural member and the coupling of the scheme. 1) based on stable ground. Greater role in the country rock The fact that the settlement will have no symptoms. 2) to minimize the friction caused by hydrological water to remove the two-pronged process through stone work building form and menu sustaining power in hydrology and flooding made against the bypass channel. 3) due to the load bearing capacity and durability to withstand the strength of the material and the construction of structures in the form of a dispersion of power between each individual to maximize the process of getting traction was applied. Second, external factors Ohgokmun fence the results obtained through the calculation of the dynamics of repair, is greatly affected by the wind and the water gate of the fence, but the action of the structural stability of the lack of power that hurt enough conclusion. In this study, the results of the structure of internal and external influence as well through the structure can be viewed as composed consisting. However, over the next follow-up in terms of climate and environmental factors due to the fact that the fall might.

Low-cost Method for Preventing Noise from Urban Excavation Construction (도심 굴착공사에서의 소음 저감방안)

  • 손기상
    • Journal of the Korean Society of Safety
    • /
    • v.17 no.3
    • /
    • pp.90-95
    • /
    • 2002
  • Den have been many construction projects in urban n We have a lot of problems which have to be solved especially against residence complaints existing building damage due to construction worts. We sometimes have to pay a certain amount of cost to solve the above problem, not in planning. In addition to, we have to suffer from work delay due to confronting problem. Almost all of these are due to blasting work to break solid rock to be excavated. Therefore, this study is focused on finding out how to reduce noise more cheaply. Four cases(4) as cheaper but more effective way have been tested to find out which way of local fence will have better moise reduce function in a field site. Where five(5) large breakers are being operated. It is concluded that more form and shape of local movable panel than the site of panel can be influenced on noise reduce.

A MULTI-STORY FIRE IN HIGH-RISE APARTMENT BUILDING DEVELOPED THROUGH BALCONIES - INVESTIGATION AND EXPERIMENTS -

  • Hasemi, Yuji;Hayashi, Yoshihiko;Hokugo, Akihiko;Yoshida, Masashi
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
    • /
    • 1997.11a
    • /
    • pp.361-368
    • /
    • 1997
  • Summary of experiments for the investigation of a fire which caused an upward fire spread for over 12 floors through balconies in a high-rise apartment complex is reported. The experiments include indoor tests to obtain fire properties of vertical PMMA fences and outdoor ones with a full scale model of the balcony. The test results suggest significance of the increase of total flame height by the merging of flames and a cooperative effect of the burning of the PMMA fence and combustibles on the balconies for the generation of a tall flame enough to cause ignition on the upper floors.

  • PDF

USING REMOTE SENSING TO DETECT THE COASTLINE CHANGE FOR MANGROVE REPLANTATION AT BAN LAEM SING, CHAO PHRAYA RIVERMOUTH, IN THE GULF OF THAILAND

  • Siripong, Absornsuda
    • Proceedings of the KSRS Conference
    • /
    • v.2
    • /
    • pp.535-538
    • /
    • 2006
  • The coastline of the Choa Phraya Rivermouth in the Upper Gulf of Thailand has been changed drastically. The western side especially at Ban Laem Sing was eroded for 400 meter in 26 years or with the rate of 15 meter per year on the average. The Metropolitan Electricity Authority has granted five years research project to us to study the efficiency of the electric pole fence as a mean to reduce the wave force and increase sedimentation rate inside for mangrove replantation. If the method works efficiently, it will be used to reclaim the coastal land loss in other areas in Thailand. The project was done since 2005 after the fence was constructed completely in October 2005. The oceanographic surveys were conducted before and after the construction in northeast monsoon season to study the impact of physical oceanographic forces on the coastline change. The sedimentation rates were measured each month. It is rather low about 2 cm/month. The subsiding rate from the load of deltaic sediment and groundwater withdraw using boring data is about 30 mm/year. The cumulative sinking rate is 55.8 cm from 1978 to 1995. We have tried to design the method of mangrove plantation in this area. The remote sensing data such as LANDSAT and aerial photos from 1987 to 2002 for 15 years were used to compute the rate of coastline change at each 50 m section along the western side of the rivermouth.

  • PDF

A Study on the Usage of Hwabangbyeok wall in Traditional Architecture in Joeson Dynasty (조선시대 전통건축에서의 화방벽(火防壁) 사용에 대한 연구)

  • Jo, Sang-Sun
    • Journal of architectural history
    • /
    • v.29 no.3
    • /
    • pp.7-14
    • /
    • 2020
  • It can be meaningful that this study attempted to analyze the use cases and forms based on the literature on the painting walls of the J oseon Dynasty, and attempted basic research to prevent disaster damage using traditional elements. This study summarizes the use of the Hwabangbyeok wall of J oseon Dynasty as follows. First, Hwabangbyeok wall was used from the early J oseon Dynasty and was adopted by palaces and other major state facilities to cope with fire and theft. Second, the Hwabangbyeok Wall was also referred to as the wall below the lower part of the wall, and was constructed with the purpose of preventing disasters from outside. Third, in an analysis of the Daeseongjeon shrine of Hyanggyo, many construction cases were identified mainly in the Gyeonggi area, which is assumed to be based on production and construction conditions along with local climatic factors. Fourth, it can be said that the Hwabangbyeok wall was basically adopted to prevent comprehensive disaster risk reduction in case of external intrusion and fire.

A Study on the Design & Construction Method of Traditional Landscape Space through the 『Imwongyeongjeji』 「Seomyongji」 and the 'Standard Specification for Repairing Cultural Heritages' (『임원경제지』 「섬용지」와 문화재수리 표준시방서를 통해 본 전통조경공간 설계 시공방법)

  • Lee, Jung-Han
    • Journal of the Korean Institute of Traditional Landscape Architecture
    • /
    • v.37 no.4
    • /
    • pp.1-10
    • /
    • 2019
  • The purpose of this study is to examine the design & construction methods of the traditional landscape space of the past and the repair and maintenance of cultural heritages to maintain it today. To this end, the method of narrative description, process extraction and construction related to traditional landscaping were compared to each other based on the 『Imwongyeongjeji』 「Seomyongji」 and 'Standard Specification for Repairing Cultural Heritages'. The results are as follows; First, to analyze at the description methods of the 『Imwongyeongjeji』 「Seomyongji」 and 'Standard Specification for Repairing Cultural Heritages' and related processes in the field of traditional landscaping. 『Imwongyeongjeji』 「Seomyongji」 was an encyclopedia of the overall construction method of the living space, describing the location, effect, and advantages and disadvantages of each component and presenting quantitative figures to institutionalize the construction of traditional landscaping spaces. 'Standard Specification for Repairing Cultural Heritages' presented the entire process of repairing cultural heritages, and it is becoming a kind of guide for reference at the site. Among them, foundation construction, roof construction, landscape construction, and fence construction were drawn as items that could be applied to traditional landscaping areas. Second, the traditional landscape space construction method was divided into the processes of foundation construction, roof construction, landscaping construction, and fence construction. Foundation construction is a way of repeating the process of land-tramping. During the construction of the roof, the tile-roofed building was built on top of the rafters and roofed with tiles. And thatched roof was made to a number of rice straws bundles to cover the roof one after the other. Instead of tiles, the stone roof was made of thin and wide stones, and the wooden boards were used for the single roof and the bark roof were constructed with many layers of dried corrugations. Landscape construction mainly consists of the Paving technique through tramping rubble and the construction of terraced flower by planting stone, plants, and shrubs on the top. According to the building materials, the wall construction was derived from the earth-stacked earthen wall, stone walls using stone and clay, marble walls made of tile patterns, and the construction of a board wall using a wood board as a wall. Third, comparing the construction methods of the 『Imwongyeongjeji』 「Seomyongji」 and 'Standard Specification for Repairing Cultural Heritages', 『Imwongyeongjeji』 「Seomyongji」 focuses on standardizing the construction methods to create a new traditional space. There is a difference in the setting of the scope of the 『Imwongyeongjeji』 「Seomyongji」 and the construction because 'Standard Specification for Repairing Cultural Heritages' provides the overall construction procedure considering the diversity of the cultural heritages. In addition, the traditional landscape space used to be a residential space in the past, but today, the maintenance process of the already established facilities as designated cultural heritages has been carried out, and construction methods have been added to create viewing conditions. In terms of the succession of traditional knowledge, some similar methods were found in the repair of cultural assets today, and some cases were also confirmed in the reconstruction of traditional technologies such as application of some materials or mix, separation of added facilities and introduction of efficient construction methods.