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심기오,이철규,Shim. Kee-Oh,Lee. Cheol-Kyu 한국방재학회 2002 한국방재학회논문집 Vol.2 No.4
우리나라 정부에서는 재해피해에 대하여 공공시설의 피해는 복구비를 100% 부담하고 있으며, 사유시설인 농작물의 피해에 대해서는 복구지원금 단가산정에 의해 70%를 지급하고 있다. 본 연구에서는 재해피해 발생시 농작물에 대한 생산비 개념을 기준으로 피해액 산정을 하고자 하였다. 5가지의 농작물 피해에 대하여 작물별 단가를 고려하여 피해액을 산정하였으며, 6종류의 농작물은 상추, 호박, 고추, 시금치, 토마토, 오이 이다. 산정결과 국가에서 지급하는 복구지원금의 비율은 현 방법에 의한 농작물 피해액에 대해서 <TEX>$3.3%{\sim}13.8%$</TEX>, 제안된 방법의 피해액에 대해서는 <TEX>$5.7%{\sim}34.1%$</TEX> 차지하는 것으로 나타났다. 제안된 피해액 산정방법은 현재방법의 피해액산정 방법보다 농작물의 피해율, 생산비 및 생육기간별 투입비율을 고려한 생산비 피해액 산정방법이다. Korean government compensates 100% for natural disaster relief fund to public facilities, and provides 70 percents to crops through unit price calculation. This study estimated disaster damage according to the standard production cost of crops. Disaster damage was estimated according to the unit price of crops. Those crops are lettuce, pumpkin, red pepper, spinach, tomato and cucumber. As a result, the ratio of natural disaster relief fund to damage was revealed as <TEX>$3.3%{\sim}13.8%$</TEX> with present method, <TEX>5.7%{$\sim}34.1%$</TEX> with suggested method. Suggested method is the first one considered damage ratio of crops, producer price and raising period.
하천만곡부의 피해인자 특성 조사 분석 - 강릉시 남대천을 중심으로 -
심기오,이준호,허경한,김진영,Shim,Kee-Oh,Lee,Joon-Ho,Huh,Kyung-Han,Kim,Jin-Young 한국방재학회 2004 한국방재학회논문집 Vol.4 No.4
본 연구에서는 만곡부 피해지점을 조사함에 있어 피해가 극심하게 발생한 유역을 선택하여, 만곡부의 피해 관련 인자들로 추정되는 인자들에 대하여 2002년 강릉시 남대천 유역을 대상으로 조사하였다. 선정 조사 된 하천은 9개이며 채택된 피해지점은 23개 지점이다. 제시된 회귀직선식에서는 사행파장과 하천연장, 사행대와 하천연장의 상관계수가 가장 높은 것으로 나타났다. 또한 분석된 특성인자들 중에 하상경사와 사행대, 곡률비와 하폭의 관계를 포락곡선으로 제시하고자 하였다. 이것은 만곡부의 수해복구설계 및 하천 정비시 재해예방에 도움이 될 것이다. The tremendous flood damage caused by Typhoon Rusa(2002) was occurred at GangNeung City in GangWon Province. Almost of the city region was inundated and most of the stream channel facilities were damaged by flash flood with heavy rainfalls. We have investigated seriously damaged parts of stream bank and tried to analyze the causes of damages focused on flow characteristics in curved channel. We analyzed the damage aspects of curved channel by examining geomorphological survey and hydrographical characteristics. Strong correlation was shown according to the regression analysis between length of stream and meander wave length, and meander belt and length of stream. Furthermore, enveloped curve was presented between bottom slope of channel and meander belt, and meander ratio and channel width. As a result, special consideration about stream flow characteristics are needed for engineers who design stream banks and channels.
李吉春,沈基五 단국대학교 1995 論文集 Vol.29 No.-
A study on the effect of the angle between the channel and the bridge piers on the increase in water level in the case of a sloped channel was carried out and the following conclusions were made. When the angle between the channel and the piers of 0°was taken as reference, the percentage rise in water level with the incline exhibited a maximum at 45°. That is the grater the slope, the more intense was the percentage rise in the water level; 11%, 5%, 3% and 3% when the slope was 1/200, 1/300, 1/400 and 1/500 respectively. When the percentage rise in the water level with the magnitude of the angle between the channel and the piers was averaged over various slopes, the average increase was 2.3%, 4.5% and 5.5% for 15°, 30° and 45° showing a gradual increase. Application of the Froude number, which is a characteristic factor of an open channel, suggested that the flow of water was inferior when the slope was steeper, while the opposite condition was observed when no hydraulic structures (piers) were present. Since increases in the slope and the angle between the channel and the piers restrict the flow of water, care must be exercised in the design of hydraulic structures, especially those for urban small channels, when steep slopes and excessive angles between the channel and the piers are to be utilized.