하천 수변공간 개발에 관한 연구

민병형,김가현,이승휘,이정환,유상호 동아대학교 건설기술연구소 2001 硏究報告 Vol.25 No.1

The concern for a cleaner environment together with the need to conserve and reuse our resources has created a challenge for which sanitary engineers, working with environmentalist, will be called upon to find new solutions over the next few years. The result of the study of development of the River's waterfront run as follows. 1. The introduction of the water facilities (which is) utilized in the neighborhood by adjacent citizens and the development of the water site (which is) equipped with facilities for environment must be actually progressed. 2. The concerned authority's favorable complation of the budget must be made up to construct the facilities as the district. 3. Close investigation on the coast and arbores and so on, must be progressed to develop the river in a manner (which is) close to nature.

방파제 평면 배치에 따른 항내 정온도에 관한 연구

민병형,민일규,이정환,강성기 동아대학교 건설기술연구소 1999 硏究報告 Vol.22 No.2

The harbor Calmness decides is hydraulic and numerical medel test. The study is Hongdo harbor building of accompany that hydraulic and numerical motel test as breakwater plan arrangement for analysis of in harbor clmness and The harbor operate rate as invsetigates is result as numerical model test. This summarize shoes the following result 1. The analysis result is nearly agreed of hydraulic and numerical model test. 2. The analysis result is case.4 is very calmness of hydraulic and numerical model test and case.1 is failed, case.2, case.3 of campared as case.3 of judged that more calmness of arrangement all borken course. 3. The analysis test results of the harbor operate rate case.1 is samall then another cases that critical wave height of anchor area but the calmness of anchor area of the case.1 that is much broarder than Hongdo anchor area therefor case.1 was decided no problme that ship is used harbor. This study result will be used of Hongdo harbor in the future for plan building of breatwater. The future for hardof high exactly as hydraulic and numerical model test especially, the will be studied numerical model test for beach reflection, breaking wave height, submerged friction.

洛東江流域에 있어서의 日雨量에 依한 時間雨量 推定에 對한 硏究

閔丙亨 東亞大學校 1967 東亞論叢 Vol.4 No.-

本 論文은 日雨量의 記錄만 있는 落東江 各 地点의 任意 繼續時間 雨量을 推定하는 公式을 落東江 各 地点의 雨量 自記紙를 分析해서 決定했다. 따라서 本 論文에서는 落東江 全流域의 日雨量에서 任意 繼續時間 雨量보다 適確한 推定에 寄與함에 있다. 지금까지 使用되고 있는 物部長穗公式 ?? 여기서 R; 日雨量(mm) ??; T時間 降雨强度(mm/hr) T; 降雨 繼續時間(hr) 및 崔榮博 嶺南公式 ?? 代身에 落東江流域의 降雨特性을 考濾한 ?? 을 發表코자 한다. 發表式中의 日雨量에 確率日雨量을 使用하면 客觀性을 지닌 任意 繼續時間 雨量을 求할수 있어 落東江 各 河川 洪水量 算定時나 下水道計劃에 있어 도움이 될 줄로 한다. The thesis is aimed to report the assumed formula of arbitrary duration rainfall in the Nak-Dong basin. To approach this study, the writer sets up the following steps: 1. In induced the formula on the automatic rainfall papers which keep for in 10 weather bureaus in the Nak-Dong basin. The study is made by the application of assumed formula of arbitrary duration rainfall in he Nak-Dong basin which a record of daily rainfall can be only determined. 2. Instead of the following Monobe's; ?? Choi, Eung Bak's ; in the Nak-Dong basin ?? where T : duration of rainfall (hr) R?: daily rainfall amount (mm) γ; intensity of T-hr duration (mm/hr) The writer wishes the report a new formula in the Nak-Dong basin; ?? If we make use of probable daily rainfall instead of daily rainfall (R??) of the previously mentioned formula, it will be very helpful to the plannings for river importance and drainage channels in urban areas.

海雲台 海濱變形에 관한 硏究

閔丙亨,姜龍太,朴雲龍,金嘉也 동아대학교 공과대학 부설 한국자원개발연구소 1984 硏究報告 Vol.8 No.1

This study has been carried out to determine the values of bed-sand scale and time scale which are difficult at hydraulic model tests on the HAE UN DAE beach after performing a marine investigation required to establish a protection method about the deformation of HAE UN DAE beach by using hydraulic model test. The amount of topography deformation of HAE UN DAE beach has also been obtained by the two dimensional movable bed hydraulic model test in a quantitative way.

하천의 계획홍수위 결정에 관한 연구

민병형,민일규,서진호 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.2

Analysis of open-channel flow is needed for the planning, design, and operation of water-resource project. The use of computers and the availability of efficient computational procedures have simplified such analysis as well as making it possible to handle complex and complicated systems. If the flow velocity at a given point does not change with respect to time, then the flow is called steady flow. however, if the velocity at g given location changes with respect to time, then the flow is called unsteady flow And a given instant of time does not change within a given length of channel, then uniform flow, at a time varies with respect to distance, then nonuniform flow, or varied flow. The steady and unsteady flows are characterized by the variation with respect to time at a given location, whereas the uniform and varied flows are characterized by the variation at a given instant of time with respect to distance. Thus, in a steady-uniform flow, the total derivative dv/dt=0. In one-dimensional flow, this means that ∂v=∂t=0, and ∂v/Xx=0. In this study, to analyze the flood flow profile characteristics and to apply in the man-made and the natural channel, uniform flow by slope-area method, nonuniform flow by standard step method(HEC-2 model) and unsteady flow by four point implicit method was investigated in this study. The weighted four point implicit method and Newton-Raphson method were used to solve the finite difference equations corresponding to the St. Venant equations for unsteady flow. The conclusions drawn from this study are: 1. Information about the input for the man-made channel simulation cases such as unsteady, nonuniform and uniform flow, given by defining a goodness of fit criterion D. Their rates were 0%, 13.4% and 18.7%, respectively. The natural channel cases were -3.9%, 0% and -0.8%. 2. The attenuation of the flood peak is getting larger as friction factoris increased. It was also shown that Froude's number is strongly dependant upon the channel slope and frict.

해안 잠재 친수여가공간 개발대상지에 대한 사례연구

민병형,이정환,정지윤 동아대학교 해양자원연구소 2000 硏究論文集 Vol.13 No.1

A study will be exalted of live quality that to use of Sea Front for new digging and development in the conceal of Sea Front as used always for live space. This summarize shows the following result. 1.Busan of decide to befroe time-table to development that seven area selected in the conceal of Sea Front to position of the Young Do , SeuㆍSahagu. 2.This seven area withen , A exercise ground area of a Dong sam don-Young Do of the study to development forms. As the proposed first case and second case to aid first case to will be canvass for superior to aid of SeaㆍCure resort 3.This seven area withen, a excrise ground area of Dong sam dong-Young Do Gu the study to development forms As the proposed first case and second case and first case to will be canvass for superior to aid of SeaㆍCure resort 4.A exercise ground area Dong sam dong - Young Do to aid of SeaㆍCure resort that through SeaㆍCure culture to offer, we will be again the SeaㆍSight-seeing city to used the SeaㆍSight - seeing. 5.SeaㆍCure resort area to aid of in the development plans to very suit for used a place and space to disposition, plans to disposition of institute objects for odd used.

와이어 매시 레인포스트 시멘트에 관한 硏究

閔丙亨,朴雲龍,金勇熙,鄭昌植 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.2

This study has been performed on the selective method of materials for MRC and the various mechanical tests through the testing manufacture of MRC pontoon. And we have attempted the enlargement of use by it's merits.

개발에 의해 조성된 매립지의 기후특성 (Ⅰ)

민병형,김가현,이승휘,이정환,강대석 東亞大學校 海洋資源硏究所 2003 硏究論文集 Vol.15 No.-

The security of Busan waterfront space mostly depends on the reclamation of the coastal zone. The temperature variation is caused by the reclamation, and the model formula of correlation with the reclamation quantity in the coastal zone of Busan is derived(X=logl0α, α=the total of the reclamation quantity). For the determinating coefficient γ²=0.86609 Y= - 157.06659 + 91.766855X - 16.6357X² + 1.0534768X³- 0.006741X⁴ From this, the later temperature increase followed by increase of the reclamation quantity is predicted.

海岸堤防의 設置에 따른 海濱變形에 관한 硏究

閔丙亨 동아대학교 환경문제연구소 1982 硏究報告 Vol.6 No.1

海岸工學에 있어서의 海岸堤防 前面의 洗掘, 海濱變形 및 漂砂등의 問題는 이들 現象을 支配하는 運動防程式이 明確하지 않으므로 理論的인 解析은 現在로서는 不可能하다. 따라서 이들 問題들의 解析은 實驗的인 方法에 依存하지 않을 수 없으며, 이때 問題가 되는 것은 水理模型 實驗의 模型과 現地에 있어서의 相似律의 不確實性에 있다. 本 硏究는 海岸堤防의 設置에 따른 堤脚部의 局所洗掘과 堤防前面의 地形變動量을 究明할 目的으로 移動床 水理模型 實驗을 행하였으며, 實驗에 있어서의 難點인 底質縮尺 및 時間縮尺을 決定하는 한 方法을 提案하고, 이 相似律에 의해 現地와 再現性이 좋은 實驗結果를 얻었다. 그리고 海岸堤防을 海濱에 設置하였을 때 堤脚部의 最大洗掘深, 1次影響範圍 및 2次影響範圍의 값들을 定量的으로 解析하였다. 그 結果 이들 地形變動量 Y는 V字形 洗掘의 1次影響範圍를 除外하면 ξ 및 i와 χ/X_(b)가 주어진 條件下에서 Y=a·N_(5) + b 즉 Y=a·(H_(0)/d_(50)^(½) (H_(0)/L_(0)) )^(½) + b 인 相關關係가 있음을 알았다. 또한 이 硏究結果로부터 海岸堤防의 設置에 따른 海濱變形에 있어서의 이들 地形變動量 Y를 줄이는 海岸保全對策工法은 H_(0)/d_(50)나 H_(0)/L_(0)를 減少시키는 方法이 提案될 수 있다. The local scour of a wall-toe and the beach deformation caused by the construction of a sea wall have been studied. The method to determine the values of both bed-sand scale and time scale of movable bed has been proposed. The results of the experiments reveal, in some intent, the verification of the similarity between the proto type and the model. The quantitative analyses were conducted to obtain the values of the maxium scour depth and the first and the second influence range caused by the construction of a sea wall on the natural beach. Consequently, when a sea wall is constructed on a beach, under the condition of given values, that is, χ/X_(b) and ξ, the quantity of beach deformation, Y, is Y=a·N_(s)+b where a and b are constants, χ is the distance measured from a shore line to dike site and X_(b) is the distance measured from shore line to the breaking point. Hence, Y=a·(H_(0)/d_(50))^(½)(H_(0)/L_(0))^(½)+b From the results of this work a protection method of beach erosion can be proposed to reduce the value of H_(0)/d_(50) or H_(0)/L_(0).

河床變動 豫測에 관한 硏究 : 密陽江이 合流하는 洛東江 本流地域을 中心으로

閔丙亨,李承輝,閔一圭,兪甲鎔,吳尙龍 동아대학교 건설기술연구소 1996 硏究報告 Vol.20 No.1

In this study, when we collect river bed sediment at the point where mainstream of Nak Dong river join branch of Mil Yang river, the change of river bed around downstream area was estimated and based on experimental data using three dimensional unsteady flow model about the water level to quantity of water and velocity and river bed change through numerical imitation experiment and hydraulic model experiment.