洪水追跡方法의 比較硏究

서진호,민일규 東亞大學校 海洋資源硏究所 1994 硏究論文集 Vol.7 No.2

The nonlinear relationship between storage and discharge exists in most actual river systems, making the use of the linear model inappropriate. This paper is to present a procedure that enables the nonlinear model or Characteristic Grid Method to deal effectively with the latter type of boundary condition and to compare the accuracy between hydrologic model and hydraulic mode. The conclusions drawn from this study are: 1. The hydrologic methods are less accurate than the hydraulic mode, namely, characteristic method. 2. Results of input for the simulation cases such as Muskingum Method, S.F.M and Characteristic Method, Characteristic Method was showed promising, and it was approved to be used for prediction of the basins.

海雲臺 海濱 侵蝕防止에 관한 實驗的 硏究 : 突堤 및 離岸堤의 組合構造物에 대하여

閔丙亨,李承輝,민일규 東亞大學校 海洋資源硏究所 1988 硏究論文集 Vol.1 No.1

Recently the HAEUNDAE beach has an impact on intense erosion phemomena. At this point, the purpose of this study is to examine the sedimentation effect by using a three-dimensional hydraulic model test when a jetty is set up. jetty From the results of the experiment it can be concluded that the optimum length of jetty would be L₁=300m, direction angle would be θ=22.5°when, H=3.0m and T=8.0 sec. A jetty and offshore breakwater are also considered as a compound structure. From this experiment the optimum length of offshore breakwater would be L₂=200m. A jetty and T-Type jetty are also comtemplated as compound structure. From this experiment the optimum length of T-Type jetty would be L₃=300m.

Water Front개념이 도입된 부산의 해안역 개발에 관한 연구(Ⅱ)

민일규,이정환,서진호,민병형 東亞大學校 海洋資源硏究所 1994 硏究論文集 Vol.7 No.2

The purpose of this study is to establish the effective direction of development in the coastal zone of Pusan and understand the concept of water front which recently employed to analyze the area of city near the sea. It has been discussed about the present condition, the problem of application of Water-front, and the direction of development in the area of shore using the concept of Water-front. From the results of this study, it can be concluded that Pusan would be the pivot of Asian and Pacific zone with Pusan harbor if the concept of Water-front and the plan of its employment is carefully arranged.

홍도항의 방파제 배치에 따른 정온도에 관한 실험적 연구

민일규,박한기,민병형,이명우 東亞大學校 海洋資源硏究所 1998 硏究論文集 Vol.11 No.1

Through a study as hydraulic model test that applied a calmness test to the coast of Hongdo harbor as an optimal surface arrangement we could reach the following conclusion 1. In case of proposal 1, if an invaded wave is H₁/₃=8.46m, T₁/₃=13.0sec of an each wave direction the harbor calmness is as follows. The wave height ratio is about 0.6 at the entrance of a harbor 0.2∼0.3 anchor area in general and the value under 0.1 when the wave(H₁/₃=2.0m) is invaded as usual. 2. The calmness effect is more favorable by breakwater extension as proposal 2 & 3, but if the high wave is assaulted the wave height ratio of anchor area is 0.1∼0.2 owing to the diffraction wave at a SSE, SE direction. 3. In case of proposal 4 the harbor calmness is considerable satisfactory at ail direction and the wave height ratio of harbor under 0.1 when the high wave is invaded. Thereafter, a study that analyze and compare with the hydraulic model test by numerical analysis about the problem of harbor calmness that a short period wave has superiority will be continued

洛東江 河口周邊의 防災對策에 관한 基礎的인 硏究

민일규,김원규,최병습,박상길,김가현 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.51 No.-

波浪과 흐름이 共存하는 大河川 河口部인 洛東江 河口域에서 洛東江 河口둑을 基点으로 波浪, 흐름, 地形變動, 潮流, 洪水位等을 評價基準으로 하여 災害에 대한 基本的인 評價를 實施했다. 波浪, 潮流, 洪水位等이 水位上昇을 透發시켜 周邊地域을 浸水시킬 수 있는 危險性의 與否를 實測과 數値計算을 통하여 實施하였다. 地形變動은 實測만을 통하여 地形變動率을 調査하였다. 資料를 分析한 結果 洛東江 河口地域은 波浪, 흐름과 波浪이 共存하는 領域으로 區分된다. 數値計算結果에 의하면 河口部에서의 來襲波高가 直接 河口둑 水門과 주변構造物에 미치는 影響은 크지 않았다. 또한, 3次元 波高分布를 볼 때 河口 水路를 따라서 거슬러 올라오는 波浪의 影響은 거의 없었다. 洪水位와 流速은 災害를 透發시키는 主要因子로 評價되었다. 波浪에 의한 異常高潮와 漲潮流와 潮汐의 滿潮時間 및 最大洪水量이 時間적으로 一致되는 境遇, 河口둑 周邊地域의 水位 上昇과 流速의 停滯現狀으로 浸水狀態가 發生한다. For the investigation of inundation disasters by wave setup in the Nakdong Estuary of the Large River which waves and currents are coexist, the wave surveying data was analyzed and the numerical model was applied to the Estuary. In this study, the result of surveying data analysis shows that waves have little effect on the surroundings. As the result of numerical computation, waves have seldom direct influence upon the barrage and its gates. Also, according to three dimension distribution of waves, it is found that coming up waves along the Estuary channel and the setup of waves have seldom effect barrage structures.

Water Front 개념이 도입된 선진 각국의 해안역 개발에 관한 연구

민일규,이정환,민병형 東亞大學校 海洋資源硏究所 1993 硏究論文集 Vol.6 No.2

This study intends to set an efficient development program for the coastal zone on which a water front concept is not yet established. In this study the theory of water front development, which is unfolding actively in the coastal city today, was established through the examination of the development models, scopes, and techniques adopted in advanced countries. The alternatives are suggested based on more detailed analysis and practical investigations.

호안단면의 안정성 검토에 관한 연구

민일규,이정환,민병형,김창동 東亞大學校 海洋資源硏究所 1998 硏究論文集 Vol.11 No.1

The necessity of development of the Nearshore zone and land reclamation has greatly emphasis in resent years. In this study, I investigated on the overtopping in the frontside of the reclamation and distance from revetment when dredging operations. Obtained results are summarized as follows. 1. In the result of the wave deformation model application, a significant wave height is 1.0m at reclamation the front revetment. 2. Experiment result of revetment section overtopping is in the permitted range of HUKUDA. 3. In the purpose of decision safety of revetment, I have been discovered the highest effect at 25m∼40m distance.

파랑변형 모형을 이용한 항내정온도 해석에 관한 연구

민일규,이정환,민병형,이영일 東亞大學校 海洋資源硏究所 1997 硏究論文集 Vol.10 No.1

Recently, by rapid growth of economic development, the guantity of ship movement is more increasing. The premier function of harbor is safe comming and going ancoring of the ship. Thus, provide efficient loading and unloading. To achive this role, the one of the most important things is to get calmness. The factor of influence the calmness is wave, wind and mooring condition. The most influenced thing of calmness is wave which is appear wave ratios. In this a treatise is to study the merits and demerits of the habor wave calculation method by numerical model and investigate wave character. The purpose of this treatise is to develope calculation algorithm to be used calmness calculation that is proposed by Watanabe and Maruyama. And to investigate the application, we applicated to Pusan harbor, compared and considerated with the data of Hydraulic model test(N.T.C., 1984) After this, I expected this model is so helpful to the analysis of calmness.

감조하천의 유로단면변화에 따른 유황해석

민병형,민일규,이승휘,박한기,박홍준 東亞大學校 建設技術硏究所 1997 硏究論文集 Vol.21 No.2

The subject of this study apply to KyungSangNamDo Sachun-Si Sachun-bay sea area for builds up a industrial complex, and inquire into the phenomenon in compared after with before reclamation. I investigated, how to remove these harmful influence and make a estimate that a water-level, flow direction and river-bed evolution by inflow of river, wave' s attack. So we have come to the conclusion as follow. 1. Water Level : After reclamation, the water-level is ascended, but the water-level is stable after dredging and changing water-course. 2. Velocity of Flow : After reclamation, back water broke out, the velocity of flow was faster after dredging and changing water-course, but the velocity of flow came to be stable in the downstream. 3. River-bed Evolution : After reclamation, the severe erosion occurred in the front of revetment, but after dredging and changing the water-course as the new stable water-course constituted, river bed evolution decreased and the flood wave flow smoothly. 4. After reclamation, the water-level remarkably increased, but the velocity of flow was nearly the same.

진하해수욕장의 파랑과 해빈류에 관한 연구

김인철,민일규,민병형 東亞大學校 海洋資源硏究所 1993 硏究論文集 Vol.6 No.1

Recently Jin-ha beach has experienced the intence erosion phenomena. The cause of erosion is examined throughout the field observation and the effects of wave and wave induced current on that phenomena are numerically experimented. In this study wave model is used Ebersole model(1985) solving elliptic mild slope equation and wave induced model is used the depth-integrated equation with continuity equation and momentum equation. The results that these models are applied to Jin-ha beach, as fallows, 1) When the wave of SE system is excellent, we can see the wave concentration phenomena toward the Myeong-sun isle and when wave of E system is excellent, we can see that phenomena toward Jin-ha beach. 2) The shole that exists in the 1.7km forward of Jin-ha beach greatly has effects on the distributions of the wave height and wave direction. 3) The wave of E system develops the largest wave induced current in Jin-ha beach. 4) The wave of SE and NE system develops wave induced current toward river mouth in Jin-ha beach and the wave of E system is in the develops wave induced current in the opposite direction.