초록 ▼

1. 연구 개발 내용 및 범위
$\circ$ 가스시설물 지진대응시스템 표준화 수립
- 외국의 지진 대응 시스템 자료 수집 및 지진 대응 시스템 계획
- 시설물별 취약도, 가스공급량, 인구밀집도 등에 따른 지진계측량 및 범위 연구
- 가스공급기관 및 유관기관간의 네트워크 체계 방안 연구
$\circ$ 시범지역 선정 및 지진대응시스템 구축
- 시범 운영 대상 선정 및 지진 대응 시스템 구축을 위한 기술협의체 구성
- 시범 지역 주요 가스 시설물 상시 지진 계측

1. 연구 개발 내용 및 범위
$\circ$ 가스시설물 지진대응시스템 표준화 수립
- 외국의 지진 대응 시스템 자료 수집 및 지진 대응 시스템 계획
- 시설물별 취약도, 가스공급량, 인구밀집도 등에 따른 지진계측량 및 범위 연구
- 가스공급기관 및 유관기관간의 네트워크 체계 방안 연구
$\circ$ 시범지역 선정 및 지진대응시스템 구축
- 시범 운영 대상 선정 및 지진 대응 시스템 구축을 위한 기술협의체 구성
- 시범 지역 주요 가스 시설물 상시 지진 계측기 시스템 시험 운영
- 네트워크 공유 프로그램 개발 및 범국가적 통합네트워크 구축
- 지진 발생시 가스 공급 시설의 대응 시나리오 수립
- 지진 발생시 가스 공급 시설의 피해 최소화 위한 대응 절차 수립
$\circ$ 주요 가스시설물의 지진안전성 평가 자료의 DB 구축
- 시설물 별 내진성능/지진취약도 분석 및 DB 구축
- 시범지역의 지질학적 자료의 DB구축 및 지진응답특성 평가
2. 당해연도 연구 개발 내용 및 범위
$\circ$ 시범지역 상시 지진계측기 시스템 4개소 추가 설치 및 운영
$\circ$ 시범지역에 대한 지진 강도 범위에 따른 대응 시나리오 기반 구축
$\circ$ 시범지역의 가스 시설물 지진 취약 분석 자료 데이터베이스 구축

Abstract ▼

In the 20th century, The damage earthquake was not occurred in the korean peninsula and korean peoples did not experienced large ground motion caused from earthquake. they were not interested in earthquake hazard mitigation and earthquake engineering. owing to rapid growth of industries and urbaniza

In the 20th century, The damage earthquake was not occurred in the korean peninsula and korean peoples did not experienced large ground motion caused from earthquake. they were not interested in earthquake hazard mitigation and earthquake engineering. owing to rapid growth of industries and urbanization, they perceived glowing earthquake risk and large damage. Recently pure earthquake researchers and earthquake engineering engineers proposed the possiblity that damage earthquake of magnitude 6.0 would be occurred inner korean peninsula. So, government, research institutes, university have invested pure earthquake and earthquake engineering research. high building and social structures like bridges, highway and railroad have been constructed with earthquake-resistant design.
For the first time, Hazard mitigation of Gas facility has been recognised to need in order to reduce secondary damage since the loss of life and property resulted from fire caused from gas facility which Japan Gobe earthquake occurred in 1995 damaged. Government, MOCIE(ministry of commerce, industry and energy) consulted with EESK(Earthquake Engineering Society of Korea) on earthquake hazard prevention for gas facility in 2002. MOV(Motor of Valve) and rapid seismic-hazard mitigation system was proposed in their report to reduce earthquake damage. MOV systems have been installed in gas pipe lines of gas companies since 2004 in accordance with gas safety law. it is the aim of this study to develop of basic design and applied system for rapid seismic-hazard mitigation of gas facility.
For the purpose of this aim, scope of our study is divided as threefold. the one is to develop standard model of rapid seismic-mitigation to korean social situation. the second is to establish ground motion measuring system on sampled gas company and test developed rapid seismic-mitigation. the last is to collect data like gas facilities, geology condition of ground, building and structures of sampled area and to assess seismic vulnerability of gas facilities and buildings and to investigate site effect by geology condition of ground. In this year, we focused on installation and operation of ground motion monitoring system in gas facilities and Establishment of network for earthquake data transmission. Also, Basic study for prediction of damage caused by earthquake was fulfilled.
Some of the important result of this study is as follows
1. installation and operation of ground motion monitoring system in gas facilities and Establishment of network for earthquake data transmission.

- Ground motion monitoring system is additionally installed at 4 places. two monitoring system is located in Gas Governor Station of KOGAS. one staion is installed at Gyung-dong gas governor station in eastern part of Ul-san city. The last station was constructed at a border between south-eastern Dae-jeon city and Ok-cheon Gun.
- Development of plan for establishing network and data type(DSS etc) to send/receive real-time earthquake data to related institutes(KOGAS, gas companies, et al.)
2. Basic Study for damage estimation
- Investigation of site-effect of installed station by H/V ratio method and rock velocity profile acquired by usage of inversion method, GA(Genetic Algorithm).
- Function of calculating ground acceleration was derived and compared to those of other studies
- Ground motion analysis was performed in order to determine amplification coefficient of little blocks by site-effect highly dependant on soil profile and characteristics. The relation of intensities between input motions and ground motions were investigated in each little block.
- Prediction of Damage Caused by Imaginary Earthquake was carried out on trial. In earthquake the great gas leakage is generally induced by the collapse of building structures because of the breakage of attached gas pipeline. The damage levels were influenced not only by the soil properties but also by the characteristic of structures. In analysis fragility curves provided by FEMA were used.
3. Basic data like as soil profiles and building structures et al. was processed so as to input GIS database in order to calculate damage estimation.
- the size of little block is recommended to cover below 50,000 households.
- Over 160 soil profile data were piled up and converted into database. It is desirable to divide whole gas supply area into several little blocks to minimize the number of gas shot down blocks. The relation of intensities between input motions and ground motions were investigated in each little block.
- For assesment of vulnerability of various types of structures it is resonable to adapt the probabilistic method. In this study the fragility curves in HAZUS program was used for regulators, buried gas pipelines and buildings.

목차 Contents

• 제 1 장 연구개발과제의 개요...17
• 제 1 절 연구의 필요성...17
• 제 2 절 연구 목적...18
• 제 3 절 연구내용 및 범위...19
• 제 2 장 국내외 기술 개발 현황...21
• 제 3 장 연구결과 및 내용...25
• 제 1 절 호주.뉴질랜드 지진 방재 대책...25
• 1. 호주의 지진 현황과 방재 대책...25
• 2. 뉴질랜드 지진 현황과 방재 대책...28
• 제 2 절 지진관측소 설치 및 운영...36
• 1. 지진대응 시스템의 기술협의체...36
• 2. 지진계측기 설치 및 운용...37
• 제 3 절 시범지역에 대한 지진 피해도 분석...72
• 1. 가속도 감쇠 공식...72
• 2. 지반해석...74
• 3. 시범지역인 울산 지역 피해도 분석...97
• 제 4 장 목표달성도 및 관련분야에의 기여도...125
• 제 5 장 연구개발결과의 활용계획...128
• 제 6 장 참고문헌...129