• Title/Summary/Keyword: Construction disaster

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A Basic Study on Reginal Prediction Model for Building Damage Costs acrroding to Hurricane (태풍에 따른 지역별 건물피해액 예측모델 개발 기초연구)

  • Kim, Boo-Young;Yang, Seongpil;Kim, Sang ho;Cho, Han Byung;Son, Kiyoung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.253-254
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    • 2015
  • Currently, according to the climate change, the damages due to the hurricane is more increased than before. In this respect, several countries have been conducted the studies regarding the damage prediction model of buildings to minimize the damages from natural disaster. As hurricane is the complex disaster including a strong wind and heavy rain, to predict the damage of hurricane, various factors has to be considered. However, mostly research has been conducted to consider only hurricane properties. Therefore, the objective of this study is to develop the regression model for predicting damages of buildings considering geography, socio-economy, construction environment and hurricane information. In the future, this study can be utilized to developing damage prediction model for building from hurricane in South Korea.

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Prediction Model of Construction Safety Accidents using Decision Tree Technique (의사결정나무기법을 이용한 건설재해 사전 예측모델 개발)

  • Cho, Yerim;Kim, Yeon-Choel;Shin, Yoonseok
    • Journal of the Korea Institute of Building Construction
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    • v.17 no.3
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    • pp.295-303
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    • 2017
  • Over the past 7 years, the number of victims of construction disasters has been gradually increasing. Compared with projects in other industries, construction projects are highly exposed to safety risks. For this reason, the research methods of predicting and managing the risk of construction disasters are urgently needed that can be applied to a construction site. This study aims to propose a prediction model for a construction disaster using the decision tree technique. The developed the model is reviewed the applicability by evaluating its accuracy based on disaster data. The top three of the prediction values obtained from the proposed model were enumerated, and then the cumulative accuracy were also calculated. The prediction accuracy was 40 percent for the first value, but the cumulative accuracy was 80 percent. Thus, as more disaster data was accumulated, the cumulative accuracy appeared to be higher. If utilized in construction sites, the model proposed in this study would contribute to a reduction in the rate of construction disasters.

Long-Term Wildfire Reconstruction: In Need of Focused and Dedicated Pre-Planning Efforts

  • Harris, William S.;Choi, Jin Ouk;Lim, Jaewon;Lee, Yong-Cheol
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.923-928
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    • 2022
  • Wildfire disasters in the United States impact lives and livelihoods by destroying private homes, businesses, community facilities, and infrastructure. Disaster victims suffer from damaged houses, inadequate shelters, inoperable civil infrastructure, and homelessness coupled with long-term recovery and reconstruction processes. Cities and their neighboring communities require an enormous commitment for a full recovery for as long as disaster recovery processes last. State, county, and municipal governments inherently have the responsibility to establish and provide governance and public services for the benefit and well being of community members. Municipal governments' comprehensive and emergency response plans are the artifacts of planning efforts that guide accomplishing those duties. Typically these plans include preparation and response to natural disasters, including wildfires. The standard wildfire planning includes and outlines (1) a wildfire hazard assessment, (2) response approaches to prevent human injury and minimize damage to physical property, and (3) near- and long-term recovery and reconstruction efforts. There is often a high level of detail in the assessment section, but the level of detail and specificity significantly lessons to general approaches in the long-term recovery subsection. This paper aims to document the extent of wildfire preparedness at the county level in general, focusing on the long-term recovery subsections of municipal plans. Based on the identified challenges, the researchers provide recommendations for better longer-term recovery and reconstruction opportunities: 1) building permit requirements, 2) exploration of the use of modular construction, 3) address through relief from legislative requirements, and 4) early, simple, funding, and the aid application process.

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The Hydro-Environmental Characteristics of Port Facilities around the Sea of Cheju Island (제주해역 항만시설물의 수리환경적 특성에 관한 연구)

  • 정태욱;김종인;류청로
    • Journal of Ocean Engineering and Technology
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    • v.14 no.3
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    • pp.1-10
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    • 2000
  • In order to effective manage the construction, disaster prevention plan and the harbor tranquility control, meteorological and sea-state characteristics around Cheju Island have been analyzed. Using results and damage examples of the port facilities under severe sea conditions, a reasonable construction control plan considering the regional characteristics of the sea-state and winds was proposed. That is, in northern part of Cheju Island, the construction work is affected mainly by the winter storms, while the typhoon mainly affects the southern part port facilities during summer to Autumn. Considering their typical characteristics, it is strongly suggested that the main construction work should be carried out during April to July in the northern part, and it should be made during October to next July in the southern part of the island. A permeable TTP mounded breakwater was constructed to protect severe waves as a temporal structure under the long-term development plan in Sogipo port. The transmission characteristics of the structure was discussed using the experimental results. The results show that the transmission coefficient $K_{t}$ is over 20% of incident waves, which cause many problems in the cargo handling in relation to harbor tranquility. In conclusion, this kind of permeable structure can be used only as a temporal structure for the disaster prevention under the construction process. It causes many problems in harbor tranquility if it is used as a permanent harbor structures.s.

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A Disaster precaution and efficiency improve of labor by promotion of Emotional Safety Culture of laborer (근로자의 감성안전문화조성에 의한 작업능률 향상 및 재해 예방)

  • Kim, Joon-Ho
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.473-477
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    • 2006
  • In domestic construction site, convenient facilities for worker are much lacking up to now. These things exert negative influences in the occurrence of construction disaster because a safety-aware of worker-self is been lacking ultimately, and 3D(Dirty Dangerous Difficult) evasion phenomenon for construction site spreads more to workers and actuality that is going through manpower problems may be heavier. This research applied sensitivity safety cultural institutions that make aware of worker's sensitivity in spot to search solution way of these problems from resource of human original nature. By the result, there were affirmative sides that sensitivity safety cultures facilities make created a safety-aware during work to worker-self. Also, these facilities gave as member of a constituent by workers, it examined that become many helps in operation efficiency.

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Development of an Integrated Sensor Module for Terrain Recognition at Disaster Sites (재난재해 현장의 지형인지를 위한 통합 센서 모듈 개발)

  • Seo, Myoung Kook;Yoon, Bok Joong;Shin, Hee Young;Lee, Kyong Jun
    • Journal of Drive and Control
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    • v.17 no.3
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    • pp.9-14
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    • 2020
  • A special purpose machine with two manipulators and quadruped crawler system is being developed to work at disaster sites where it is intended to quickly respond in the initial stages after the event. In this study, a terrain recognition module is developed so that the above special purpose machine can quickly obtain ground information to help choose its path while recognizing objects in its way, this is intended to enhance the remote driver's limited situational awareness. Terrain recognition modules were developed for two tasks (real-time path guidance, precision terrain measurements). The real-time path guidance analyzes terrain and obstacles while moving, while the precision terrain measurement feature provides more accurate terrain information by precisely measuring the ground in front of the vehicle while stationary. In this study, an air-cooled sensor protection module was developed so that the terrain recognition module can continue its vital tasks in the event of exposure to foreign substances, including scattered dust, mist and rainfall, as well as high temperatures.

Development of a Risk Assesment Model for Excavator Work (굴착기 투입 작업의 위험성 평가모델 개발)

  • Kang, Sumin;Ra, Bohyun;Yang, Yejin;Han, Seungwoo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2022.11a
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    • pp.133-134
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    • 2022
  • Recently, the criteria for assessing industrial accidents have been replaced by the mortality rate. It was found that the number of deaths from excavation work was the highest among construction machinery. The risk assessment is being conducted, however the industrial accident mortality rate has not decreased. Accordingly, this study aims to provide the basic for the create of a risk assessment model specialized in construction work at excavator. It provides absolute value from the risk model which is capable of delivery the probability of a disaster. In addition, we provide a relative risk model that compares the risk through scores between detailed works. The relative risk model is combined by likelihood and severity; the likelihood indicates the frequency of accidents and the severity indicates seriousness of fatal accidents. A variable that reflects the conditions of the construction site was added to the risk assessment model based on past disaster cases. And using the concepts of probability and average, the risk assessment process was quantified and used as an objective indicator. Therefore, the model is expected to reduce disasters by raising the awareness of disasters.

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A Study on Fire Risk Assessment of the Temple Using Fire Loads (화재하중을 통한 사찰의 화재 위험성 평가에 관한 연구)

  • Kim, Su-Young;Shin, Young-Ju;Park, Young-Ju;Lee, Hae-Pyeong
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.11a
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    • pp.409-415
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    • 2008
  • In this study, we considered the fire risk assessment of the temple using fire loads and the classification of combustibles. The building construction materials were classified as walls, beam-columns, floorings, ceiling panels and the loading combustibles were classified into fixed materials and movable materials. As a result, we confirmed that the total fire load of the Palsangjeon was $368\;kg/m^2$. The building construction materials accounted for approximately 93.8 percent of the total fire load and the loading combustibles accounted for approximately 6.2 percent.

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Ubiquitous Disaster Protection Infrastructure for Underground Space (지하공간 u-방재시스템 구축을 위한 기반 기술)

  • You Chang-Ho;Park Seung-Yeob;Choi Yun-Soo;Kwon Kie-Wook
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2006.04a
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    • pp.495-499
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    • 2006
  • While the use of large scale underground complex space is increasing currently, this research suggests the methodology of servicing advanced service for civilian and constructing active disaster protection system in order to be free from danger problem of underground complex space by applying new ubiquitous technology. Synchronization between virtual space and real space and construction of ubiquitous disaster protection system arc the core technology. Based on RFID, USN technology, usually, user centered spatial information services are presented. it can be convert to disaster protection system on emergency situation without delay. Through these technology. we can ensure the safety of underground space where the floating population is concentrated in, moreover, utilize for infrastructure that presents various civilian services. Then we can satisfy the increasing civilians desire for safety and welfare and finally, it will contribute to construction of productive city and creation of new conceptual market.

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Study of Influence Factors for Prediction of Ground Subsidence Risk

  • Park, Jin Young;Jang, Eugene;Ihm, Myeong Hyeok
    • Journal of Korean Society of Disaster and Security
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    • v.10 no.1
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    • pp.29-34
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    • 2017
  • This Analyzed case study of measuring displacement, implemented laboratory investigation, and in-situ testing in order to interpret ground subsidence risk rating by excavation work. Since geological features of each country are different, it is necessary to objectify or classify quantitatively ground subsidence risk evaluation in accordance with Korean ground character. Induced main factor that could be evaluated and used to predicted ground subsidence risk through literature investigation and analysis study on research trend related to the ground subsidence. Major factors of ground subsidence might be classified by geological features as overburden, boundary surface of ground, soil, rock and water. These factors affect each other differently in accordance with type of ground that's classified soil, rock, or complex. Then rock could be classified including limestone element or not, also in case of the latter it might be classified whether brittle shear zone or not.