• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.667-672
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• 2009

Gathering information and systemization of infrastructure disaster management is to reduce uncertainties in making decisions and maximize the number of alternations. The key objects of a sensor-based progress report and propagation automation systems are to provide objective data, realize and support decision making and deliver them to a certain area, department, manager and other people rapidly. The major findings and results of this study are as follows. 1) Application of international standard-based alerting protocol(CAP; Common Alerting Protocol). 2) Development of database of existing progress report and propagation manual in order to achieve networking of safety management on major social infrastructure of the nation. 3) Development middleware application programs to progress report and propagation data using SMS, FAX, EMS, VMS, MMS.

• 한국가스학회지
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• 제15권1호
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• pp.46-53
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• 2011

최근에 정보기술 패러다임은 유비쿼터스 기술이 도입되면서 스마트 서비스 환경으로 변화하고 있다. 도로, 상하수도, 가스 등과 산업 시설물에 유비쿼터스 기술이 접목되어 비용 감소 및 사고 예방성 향상이 높아지면서 관련된 연구 및 기술이 가속화되고 있다. 그러나 현재까지 공통환경 IT기술 위주로 개발되어 산업 도메인 특성이 고려되지 않았기 때문에 유비쿼터스 기술이 생활환경 및 산업시설에 활발하게 도입되지 못하고 있다. 본 논문은 도시가스 주요시설에 유비쿼터스 기술을 도입하기 위하여 현장지향형 무선 데이터 전송 인프라를 구축하고 효율적인 서비스를 제공하는 무선기반 도시가스 안전관리 시스템을 목적으로 한다.

• 한국지진공학회논문집
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• 제18권5호
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• pp.231-240
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• 2014

This study reviews the status and validity of seismic design criteria (SDC) for major facilities in Korea, which are composed of performance criteria and technical standard. Various facilities with different seismic design response spectra are analyzed to identify their seismic performance and necessity of eventual retrofit. The results are used to derive improvement directions of SDC. It is also concluded that the technical standard should be improved after the revision of the performance criteria.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 춘계 학술발표회
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• pp.1358-1365
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• 2010

Estimating condition of slope is difficult because of nonlinear time dependency and seasonal effects, which affect the displacements. Displacements and displacement patterns of landslides are highly variable in time and space, and a unique approach cannot be defined to model landslide movements. Characteristics of movements are obtained by using a statistical method called Principal Component Analysis(PCA). The PCA is a non-parametric method to separate unknown, statistically uncorrelated source processes from observed mixed processes. In the non-parametric approaches, no physical assumptions of target systems are required. Instead, since the "best" mathematical relationship is estimated for given data sets of the input and output measured from target systems. As a consequence, non-parametric approaches are advantageous in modeling systems whose geomechanical properties are unknown or difficult to be measured. Non-parametric approaches are consequently more flexible in modeling than parametric approaches. This method is expected to be a useful tool for the slope management of and alarm systems.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.921-929
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• 2008

도로절토사면을 지속적으로 관리함에도 불구하고 집중호우 시 도로절토사면 붕괴로 인한 피해가 속출하고 있다. 이러한 절토사면 붕괴에 의한 피해를 최소화 하기위해 각종 신공법들이 개발, 도입되고 있으며 IT와 접목된 상시계측시스템도 많은 현장에 적용되고 있다. 국토해양부 각 지방국토관리청 산하 국도관리사무소에서 관리중인 절토사면 중 현재 상시계측시스템을 운용하고 있는 현장은 총 93개소이며 이들 현장들에 문제가 발생할 시 즉각적으로 경보시스템이 작동하여 붕괴에 의한 피해를 최소한으로 줄일 수 있다. 또한 시스템 작동에 차질이 없도록 정기적인 현장 점검이 이루어지고 있으며 2008년 3월경에 한국건설기술연구원, 한국시설안전공단, (주)GMG에서 합동현장조사를 실시하였다. 이 현장조사 결과를 토대로 전국국도 상시계측시스템의 현황 및 특성, 상시계측시스템의 문제점 및 개선방향에 대하여 분석하였다. 이에 본 연구에서는 전국 국도 사면 중 상시계측 시스템이 설치된 현장에 대하여 암종별, 규모별, 지역별로 분석을 실시하였으며 특히 상시계측시스템이 설치된 현장 중 붕괴발생현장 및 붕괴위험 현장에 대하여 붕괴특성분석, 유지관리 사례분석 등을 실시하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.938-945
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• 2008

Rockfall and landslide bring about a great social loss with loss of property such as obstruction of traffic and damage of the crops as well as casualty. The purpose of this study is to develop a mobile equipment for local risk factors detecting of road slope. The mobile equipment is designed to receive the sensing data from the measurement sensors, which are installed to detect the dangerous signs from the slopes, as loaded on a vehicle which is moving around to the places where the sensors are installed. In general, more than one mandatory data logger, which is very expensive, must be installed at each slope for the automatic measuring system, but in case of this developmental system, the inexpensive routine measurement can be performed regardless of the number of slopes due to the single unit of information gathering vehicle. This study is going to develop technologies that are expected to be applied to not only slope but also tunnel and bridges which might have the partial risk and need measuring.

• 한국안전학회지
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• 제33권5호
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• pp.84-91
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• 2018

Despite the government 's efforts to reduce constructional disasters, it has been pointed out that the safety management cost of the Construction Technology Promotion Act does not reflect the actual site. Therefore, it is necessary to study the proper guideline of the safety management cost which can be used as the most fundamental measure to prevent construction accidents. Moreover for the securement of the reasonable safety management costs, it is important to calculate its appropriate rate. Thus, in this study, the appropriate rate of safety management cost was proposed by the construction cost & type based on the 111 execution plans of safety management cost, and the rate is analyzed to be 1/10 of the occupational safety and health management cost. The results of this study will be a guideline in improvement to the proper schedule rating system improvement and in implement of pilot projects.

• 한국수소및신에너지학회논문집
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• 제33권6호
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• pp.795-802
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• 2022

Korea is showing its appearance as a leading country in the hydrogen economy by establishing policies for revitalizing the hydrogen economy and enacting the 「Hydrogen Economy Promotion and Hydrogen Safety Management Act」 for the first time in the world. In addition, domestic hydrogen facilities are using hydrogen energy safely through world-class safety management compared to overseas advanced countries. However, in order to enhance the safety of the rapidly diversifying hydrogen industry and rapid technology development, such as the introduction of liquefied hydrogen, some institutional improvements are needed. In this regard, this paper intends to analyze the results of safety inspections on 13 representative facilities and prepare safety improvement plans to establish preemptive safety measures.

• 비파괴검사학회지
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• 제15권3호
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• pp.461-466
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• 1995

• 비파괴검사학회지
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• 제15권3호
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• pp.467-481
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• 1995