• Title/Summary/Keyword: fall accidents

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Experimental Study of Strength Degradation according to Fixed Knot Method and Outdoor Exposure Environment of Auxiliary Rope for High Altitude Work (추락 방지용 보조로프의 고정 매듭법과 옥외 노출 환경에 따른 강도저하 평가에 관한 연구)

  • Sang Min Song;Tae Sun Kim;Keon Yeob Kim;Song Mi Kim;Oh Heon Kwon;Woo Rim Park
    • Journal of the Korean Society of Safety
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    • v.38 no.3
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    • pp.10-19
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    • 2023
  • Fall accidents account for the highest accident fatality rate in the construction industry. In addition, wearing and using a safety belt is the most realistic and important preventive measure to reduce fall accidents. Safety belts are protective devices worn by individual workers; they prevent workers from falling and allow for time to rescue the workers. However, the legal standards for safety belts only stipulate the materials, specifications, and strength of parts; there is no provision for an auxiliary rope fixing method to fix the safety belts safely. Due to this reason, workers in industrial sites arbitrarily fix and use the auxiliary rope. Currently, the most used method to fix the auxiliary rope is to tie a knot, which significantly lowers the strength of the material compared to the standard strength. Moreover, many construction sites are located outdoors, so the strength of the materials used in the auxiliary rope is inevitably reduced due to various external environmental conditions. Therefore, to solve this problem, this study was conducted to evaluate the strength of the material of the auxiliary rope for fixing the safety belt and the knot-tying method for the auxiliary rope. In this study, the exposure conditions for the effects of temperature and moisture were set to reflect the characteristics of the construction industry. The results of this study are expected to be used for standards establishment and the safe use of the auxiliary rope for safety belts in actual field applications.

A Case Study on the Safety Management and its Education in an Infant Institution of Learning (유아교육 기관에서의 안전관리와 안전교육 실태에 관한 실증적 연구 - 인천지역의 유아교육 기관을 중심으로 -)

  • Han, Doo-Heui;Jung, Soo-Il
    • Journal of the Korea Safety Management & Science
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    • v.11 no.1
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    • pp.7-14
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    • 2009
  • Protecting an infant from a risk of accident was an absolute responsibility and duty of parents in the past. As increase in the ratio of entering kindergartens, the demand of all day program also increases. In infancy, safety concerns are higher than other periods since infants are curious about objects and environments and that have stronger impulse of the spirit of inquiry. Since baby's functioning is poor, an ability of balance maintenance and an exercise function are not sufficiently developed. Further more, they lack a cognitive power about self-control or situation. According to Korea Consumer Agency, safety accidents in infant institution have increased in 115% as 294 cases compared with 137 cases in 2004. Major causes of infant deaths are street accidents, drowning, and deaths from a fall in order. Considering this situation, we need to prevent and deal with accidents. Therefore this thesis grasp the situation and analyze an actual condition of an safety education about teachers who work in such institutions and infants who are educated in institutions to prevent from accidents and make up pleasant environments. Then, it will suggest all efficient safety education plans for infants to them.

Cases of Safety Accidents and Response under the Serious Accident Punishment Act -Focusing on the Construction Industry- (중대재해 처벌등에 관한 법률상 안전사고의 현황과 대응방안 -건설 산업을 중심으로-)

  • Mingyu Choi
    • Journal of Arbitration Studies
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    • v.33 no.2
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    • pp.23-52
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    • 2023
  • In this thesis, the domestic and foreign legislative background and legislative process of the Serious Accident Punishment Act were reviewed, and the Serious Accident Punishment Act in Korea was reviewed. In 2022, more safety accidents occurred in the construction industry than in other fields, and in particular, the most deaths occurred in the 'fall' type. In April 2023, regarding two criminal first-instance trial cases, the courts all sentenced guilty, and in one case, the representative of the company(CEO) was sentenced to imprisonment and was arrested. In response, the management side expresses the opinion that the punishment is excessive and there is a concern that corporate management will shrink, while the workers side(Union) argues that the responsibility of the business operator or manager should be strengthened by heavier punishment. As a countermeasure to overcome rationally, we present a plan in terms of legislation and resolution process. In other words, we present a review of the amendment to the Serious Accident Punishment Act and the Court Organization Act. In addition, guidelines for the a safety and health system must be implemented, and if an accident occurs, it must be dealt with reasonably. As a result, safety accidents in the construction industry should drastically decrease and safety culture should be properly established.

Accuracy Analysis of Construction Worker's Protective Equipment Detection Using Computer Vision Technology (컴퓨터 비전 기술을 이용한 건설 작업자 보호구 검출 정확도 분석)

  • Kang, Sungwon;Lee, Kiseok;Yoo, Wi Sung;Shin, Yoonseok;Lee, Myungdo
    • Journal of the Korea Institute of Building Construction
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    • v.23 no.1
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    • pp.81-92
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    • 2023
  • According to the 2020 industrial accident reports of the Ministry of Employment and Labor, the number of fatal accidents in the construction industry over the past 5 years has been higher than in other industries. Of these more than 50% of fatal accidents are initially caused by fall accidents. The central government is intensively managing falling/jamming protection device and the use of personal protective equipment to eradicate the inappropriate factors disrupting safety at construction sites. In addition, although efforts have been made to prevent safety accidents with the proposal of the Special Act on Construction Safety, fatalities on construction sites are constantly occurring. Therefore, this study developed a model that automatically detects the wearing state of the worker's safety helmet and belt using computer vision technology. In considerations of conditions occurring at construction sites, we suggest an optimization method, which has been verified in terms of the accuracy and operation speed of the proposed model. As a result, it is possible to improve the efficiency of inspection and patrol by construction site managers, which is expected to contribute to reinforcing competency of safety management.

A Study on Prevention of Construction Opening Fall Accidents Introducing Image Processing (이미지 프로세싱을 활용한 개구부 추락 사고예방에 관한 연구)

  • Hong, Sung-Moon;Kim, Buyng-Chun;Kwon, Tae-Whan;Kim, Ju-Hyung;Kim, Jae-Jun
    • Journal of KIBIM
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    • v.6 no.2
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    • pp.39-46
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    • 2016
  • While institutional matters such as improvement on Basic Guidelines for Construction Safety are greatly concerned to reduce falling accidents at construction sites, there are short of studies on how to practically predict accident signs at construction sites and to preemptively prevent them. As one of existing accident prevention methods, it was attempted to build the early warning system based on standardized accident scenarios to control the situations. However, the investment cost was too high depending on the site situation, and it did not help construction workers directly since it was developed to mainly provide support operational work support to safety managers. In the long run, it would be possible to develop the augmented reality based accident prevention method from the worker perspective by extracting product information from BIM, visually rendering it along with site installation materials term and comparing it with the site situation. However, to make this method effective, the BIM model should be implemented first and the technology that can promptly process site situations should be introduced. Accordingly, it is necessary to identify risk signs through lightweight image processing to promptly respond only with currently available resources. In this study, it was intended to propose the system concept that identified potential risk factors of falling accidents by histogram equalization, which was known as the fastest image processing method presently, used visual words, which could enhance model classification by wording image records, to determine the risk factors and notified them to the work manager.

A Study of Burn Accidents in Children towards Developing a Program for Prevention (어린이 화상사고의 실태와 예방대책 프로그램 개발에 대한 연구)

  • Han, Jeong-Seok;Seo, Mi-Hye
    • The Korean Nurse
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    • v.36 no.4
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    • pp.61-74
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    • 1997
  • This study is a descriptive study which was done to examine the circumstances surrounding burn accidents in children in order to develop a burn prevention program. The subjects for the study were the mothers of 107 children admitted to two burn specialty hospitals in seoul and the mothers of 172 healthy children attending day care or kindergarten. The tool used in the study was developed by the researchers, pretested and refined. Cronbach's alpha was 0.72. Data collection was done between November 1995 and April 1996. Statistically analysis was done using SAS Version 6.04 and the data was analyzed using test, chi square, regression and logistic analysis. A suumary of the results shows the following : Eighty percent of the children in both groups lived in nuclear families but comparatively more of the children with burn accidents lived in apartments. More of the parents in the group of healthy children had university education and held white collar or professional jobs, while the parents of the children with burn accidents were slightly younger than the parents of the healthy children. but not significantly younger. A significantly greater number of families of children with burn accidents had more than one child and the characteristics of the children with burn accidents that they were more frequently boys, either first or last born and very active. Most of the burn accidents occurred in fall or winter. sometime between noon and midnight and the majority occurred in the home and were caused by hot liquid. In 86% of the cases emergency care was not given at home but the child was brought to the hospital emergency unit. Most of the burns were second degree or greater. involved the arms or legs. required admission, and 41.5% occurred when the parents were preparing or eating meals. In a test of knowledge of preventive measures, the mothers of children who had suffered burn accidents scored slightly higher than the mothers who had no experience with burn accidents, but this was not statistically significant. As to what to do in the case of a fire, the mothers of the healthy children had more knowledge about who to notify. but 70% of the mothers in both groups did not know how to escape from the house if it was of fire. 80 to 96% did not know what do to in case of a fire, such as rolling if clothes were on fire. 80% did not know what emergency care to give for a burn, and 74 to 87% did not know when it is appropriate to try to put out a fire. It can be concluded from this study that. since the results show that the most frequent situation which resulted in burn accidents was when the parents were not aware of the danger of burns or were not paying attention to the child. and when there were no protective devices to prevent burns. and that accidents most frequently occurred at home. the most effective way of preventing accidents is to develop in the parents a "safety mind", Since burn accidents in children are usually more severe than in adults. the physical. emotional. psychological and social damage is greater. In order to develop and awareness of this in the general public. the use of mass media. books and pamphlets and other educational media that provide education on prevention of burn accidents need to be utilized.

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The Modified Fall Detection Algorithm based on YOLO-KCF for Elderly Living Alone Care (독거노인 케어를 위한 개선된 YOLO-KCF 기반 낙상감지 알고리즘)

  • Kang, Kyoung-Won;Park, Soo-Young
    • Journal of the Institute of Convergence Signal Processing
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    • v.21 no.2
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    • pp.86-91
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    • 2020
  • As the number of elderly people living alone increases, the frequency of fall accidents is also increasing. Falls are a threat to the health of older adults and can reduce their ability to remain independent. To solve this problem, we need real-time technology to recognize and respond to the critical condition of the elderly living alone. Therefore, this paper proposes a modified fall detection algorithm based on YOLO-KCF that can check one of the emergency situations in real time for the elderly living alone. YOLO can detect not only the detection of objects, but also the behavior of objects, namely stand and fall. Therefore, this paper can detect fall using the ratio of change of boundary box between stand and falling situation, and this algorithm can improve the shortcomings of KCF.

A Study for Decrease Accident from Falls at the Construction Sites - Focused on Under 2nd Floor (건설현장의 추락재해 감소방안을 위한 연구 - 2개층 이하 높이 추락재해 감소 방안)

  • Park, Jun-Ky;Shin, Seung-Ha;Lee, Jung-Won;Kim, Kyung-Hwan
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.918-921
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    • 2008
  • There are various accident at the Construction site like fall, electric shock, roll over, clash, fire, body cutting. By the way, falls are the most causes accidents. So, the best way of decreasing Construction accidents is decreasing falls. Already, there are many studies about falls accidents, but those studies were pointed out unrealistic because falls accidents are increasing. For that reason, this study look for more concrete device. In this study, grasp the cause of falls accident from 2007 to 2008. 06. 30. And then, stand on this factor I set my face to look for the causes of falls accident. This access means will drive to remove core causes, and then that means will decrease the falls accidents. Moreover that means will contribute decreasing the hole construction accidents.

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A Study on the Change of Domestic Marine Accidents and Insurance Rates according to Enforcement of ISM Code (ISM Code 도입에 따른 국내 해양사고 및 보험율 변화에 관한 연구)

  • Yang, Hyoung-Seon;Noh, Chang-Kyun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.16 no.1
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    • pp.65-69
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    • 2010
  • The variations of marine accidents and ship's insurences are measures for assessing the effects of ISM Code implementation, bemuse expenses for the treatment of ship accidents and compensations for the loss have an effect on the ship's insurence. In order to understand the results and accmplishements of ISM Code implementation in Korea, the rise and the fall of marine accidents and ship's insurences were analyzed and examined in domestic shipping companies from one year before implementation to eight years after implementation of ISM Code. As the result of analysis, compared with the period of a year before implementation of ISM Code, the decrease of about 14.4% in marine accidents was shown in the 8th year after ISM Code implementation in Korea, and ship's insurance rates tended to decrease from year to year.

An Analysis on the Safety Accident Network and Risk Level of Construction Machine and Equipment (건설기계·장비의 안전재해 네트워크 및 위험도 분석)

  • Shin, Won-Sang;Son, Chang-Baek
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.34 no.5
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    • pp.35-42
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    • 2018
  • In order to seek out methods to reduce safety accidents caused by construction machinery and equipment, this study collects data about safety accidents and draws main risk factors by construction from the data, through SNA. It aimed to suggest safety management points to be used in future construction fields, by analyzing risk index of such factors. The finding can be summarized: First, Backhoe Bucket is the risk factor for crash accidents of average workers in earth works; boring machines-maintenance is the risk factor for fall accidents of construction machinery operators in foundation works; bending machine-reinforcing rod processing is the risk factor for jamming accidents of reinforcing rod engineers in frame works; and mobile crane-hook is the risk factor for crash accidents of average workers in lifting works. Second, works can be arranged in turn, according to the risk index: earth, lifting, frame and foundation works. Risk factors can be also arranged according to the risk index: Backhoe in earth works, pile drivers in foundation works, bending machines in frame works and mobile cranes in lifting works. This study has some limits, in that it only analyzed main machinery/equipment, among various kinds of them, for earth, foundation, frame and temporary works (lifting works) and used data collected over three years. Therefore, it is necessary to conduct an analysis using big data, by collecting additional data about a lot of machinery/equipment in future construction fields.