• Title/Summary/Keyword: localized torrential downpour

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A Study on Failed Slope Stability by Localized Torrential Downpour (집중호우로 붕괴된 절토부 사면의 사면안정 처리에 관한 연구)

  • 신희순;배규진;이승호;정용진;심정훈
    • Proceedings of the Korean Geotechical Society Conference
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    • 2003.03a
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    • pp.137-144
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    • 2003
  • Continuous road improvement is required by situation that need link between cities by special quality that is our country's topography enemy that most of country have consisted to mountain district. According to this, occurrence of large cutting slope is formed necessarily Cutting slope are very weak real condition because of concentrative downpour and can know easily by example of typhoon Rusa. This study did helpful in slope design and carrying out suitable reinforcing method.

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A Failure of disturbed natural-slope ground caused by cutting slope (절토에 의한 상부자연지반의 붕괴 특성 연구)

  • Nah, Kwang-Hee;Chang, Buhm-Soo;Shin, Chang-Gun;Kim, Yong-Soo;Choi, Yong-Ki
    • Proceedings of the Korean Geotechical Society Conference
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    • 2004.03b
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    • pp.629-634
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    • 2004
  • When it was a localized torrential downpour last year, a natural-slope fell down above a cut-slope. They were caused that stress was opened by cutting slope, ground water level rose quickly and a ground mass strength fell etc. So volume of ground mass increase because of that reasons, finally the disturbed ground was collapse. Therefore I suggest that safety of a natural-slope is a consideration, when a cut-slope is made by cutting ground.

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A Study on the Sensing System Construction of a Missing Roadbed (철도 노반유실검지시스템 구축에 관한 연구)

  • Kim, Ki-Young;Kang, Kyung-Sik
    • Proceedings of the Safety Management and Science Conference
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    • 2009.11a
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    • pp.461-470
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    • 2009
  • A railroad has a benefit of the mass transportation of a passenger and cargo, but just a time of accident could cause a huge loss of a human life and property. Especially, a typhoon and a localized torrential downpour usually happened in summer season have caused average 38.29 times of the missing roadbed which support the railroad in recent 7 years. If a train would pass on this railroad which the roadbed was missed, there could be a huge accident and many people will die. But, the security issue is not satisfied because the method of sensing the missing roadbed is depending solely on the naked eye inspection by a person in charge. So, in this study, I would like to suggest the missing roadbed real-time sensing and train operation system to reduce the possibility of the railroad accident by controlling the operation of train when the missing roadbed condition would be sensed in the real-time system.

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Study on Plans to Establish Disaster Safety Villages in Rural Areas by Focusing on Facilities and Spatial Projects (시설과 공간계획을 중심으로 한 농촌지역 재난안전마을 구축방안 연구)

  • O, Hyeji;Lee, Taegoo
    • Journal of the Society of Disaster Information
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    • v.12 no.3
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    • pp.261-272
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    • 2016
  • The whole world has been damaged by dramatic increase of natural disasters such as localized torrential downpour, earthquake and drought, while suffering from climate changes caused by global warming. In Korea where the continental climate and oceanic one are crossed, the frequency and the size of damages are increased by stronger typhoons and localized torrential downpours and landslides, storms and floods. Therefore, this study analyzed damage cases and their causes and examined foreign plans to prevent natural disasters, by limiting to rural villages where serious damages occur due to typhoons and localized torrential downpours and measures and infra-structures against such disasters are poorly prepared. From the findings, it attempts to suggest some plans to establish disaster safety villages by abstracting plan factors applicable to rural areas in Korea, on the basis of facilities and spatial projects.

A basic study for Decision of Debris Barrier Model it is suitable to Mountains among the Kangwon (강원산간지형에 적합한 사방댐 모델결정을 위한 기초적 연구)

  • Hwang, Suk-Min;Lee, Seung-Ho;Moon, Jung-Shik;Kim, Yu-Tae
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.530-533
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    • 2007
  • Our country occurs yearly damage, because of every year in the summer season characteristic localized torrential downpour. Therefor, we will research damage instance and natural calamity reduction effective plan through research against a landslide relation Debris Barrier, And the Debris Barrier decide suitability of Mountains among the Kangwon.

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Cause and Measure of Road Structures for Localized Torrential Downpour (집중호우에 의한 도로시설물 피해 원인 및 대책)

  • Lee, Yong-Soon;Choi, Chang-Ho;Chung, Ha-Ik;Kwon, Ki-Hwan
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.458-461
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    • 2007
  • This paper describes the cause and measure of road structures failures in Kangwon area for year 2006 rain fall. Localized rainfall due to abnormal climate generates rock or dirt flows in upper stream and leads, the road structure failure located on mountains terrane. Main cause of such failures erosion, debris-flow, insufficient supply of culvert drainage system in ravine areas. It is needed to enhance the design methodology of road-drainage system and the remediation technology of rock and dirt flows

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A Study on the Improvement of Pavement for Bus Rapid Transit System in Seoul (서울시 중앙버스전용차로 포장방법 개선방안 연구)

  • Bae, Yoon Shin;Kwon, Wan Taeg;Lee, Sang Yum
    • International Journal of Highway Engineering
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    • v.16 no.4
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    • pp.11-19
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    • 2014
  • PURPOSES: This study is to suggest the improvement for bus rapid transit system in Seoul METHODS: The maintenance cost for bus lane damages and plastic deformations are increased by bus passing speed, heavy bus weight, and climate change (localized torrential downpour, subtropical climate) and the accident risk has been increased. RESULTS: Recent analysis of pavement damage indicates that bus lane damage caused by heavy weight is overwhelming and it is urgent to prepare countermeasures. CONCLUSIONS : Pavement data of bus rapid transit system, bus transit numbers and pavement damage elements were analyzed. By analyzing pavement maintenance, design and construction, the countermeasures for the improvement of bus lane pavement and effective maintenance were suggested.

Full Scale Load Tests on Reinforced Slope Structure (사면보강구조물에 대한 실물재하시험과 평가)

  • Kwon, Young-Ho;Park, Shin-Young;Lee, Seung-Hyun;Kang, In-Kyu;Ki, Min-Ju
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.10a
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    • pp.241-255
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    • 2006
  • Owing to a landslide or embankment damage be caused by a localized torrential downpour and heavy snowfall resulted from recent abnormal climate, a slope stability is very important. This study is investigate a general slope reinforcement method and applicability improvement of soil nailing method utilized prototype loading test for the facing stiffness effect confirmation. A prototype loading test supplements general slope stability study by numerical analysis or laboratory test with a resonable analysis of slope structure.

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Evaluation of Overtopping Risks of Levee by using Reliability Analysis (신뢰성 해석에 의한 제방의 월류 위험도 산정)

  • Lee, Cheol-Eung;Park, Dong-Heon;Shim, Jae-Wook
    • Journal of Industrial Technology
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    • v.29 no.A
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    • pp.101-110
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    • 2009
  • Due to frequent occurrence of a localized torrential downpour caused by global warming and change of outflow tendency caused by rapid urbanization and industrialization, risk analysis must be carried out in levee design with uncertainty. In this study, reliability analysis was introduced to quantitatively evaluate the overtopping risk of levee by the uncertainty. First of all, breaking function was established as a function of flood stage and height of levee. All variables of breaking function were considered as random variables following any distribution functions, and the risk was defined as the possibility that the flood stage is formed higher than height of levee. The risk evaluation model was developed with AFDA (Approximate Full Distribution Approach). The flood stage computed by 2-D numerical model FESWMS-2DH was used as input data for the model of levee risk evaluation. Risk for levee submergence were quantitatively presented for levee of Wol-Song-Cheon.

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