강우시 침투영향을 고려한 사면안정해석

심태섭,기완서,김선학,최순범 朝鮮大學校 建設技術硏究所 2007 建設技術硏究 Vol.27 No.2

Most of current slope safety analyses consider only the effect of the rise of underground water level. However, because the infiltration of surface water into the ground is believed to have significant effects on slope stability, the present study performed slope safety analysis in case of the rise of underground water level, the infiltration of surface water, and both resulting from rainfall, and examined their effects. For this study, we selected Slope A and B, at which slope failure had happened due to rainfall, and made slope safety analysis in consideration of the fall of wetting front and the rise of underground water level resulting from rainfall. Based on the results of the analysis, we made comparative analysis on the relation between the effect of infiltration on rainfall and the stability of the slopes and proposed a desirable slope safety analysis method. The conclusions of this study are as follows. 1. In slope safety analysis in consideration of the effect of infiltration resulting from rainfall, the variation of safety factor was different depending on whether to consider the fall of wetting front, the rise of underground water level. or both. 2. The decrease of the slope safety factor caused by the fall of wetting front on rainfall was somewhat faster than that caused by the rise of underground water level. This suggests that slope failure caused by rainfall is affected more by the fall of wetting front than by the rise of underground water level. 3. When both the fall of wetting front and the rise of underground water level were considered at the same time, the slope safety factor decreased faster than when either the fall of wetting front or the rise of underground water level was considered. Accordingly, it is considered desirable to consider both the fall of wetting front and the rise of underground water level in slope safety analysis that takes into account the effect of infiltration resulting from rainfall.

관광현상체계의 원활성에 미치는 영향요인 분석과 경주시의 과제

이태종,송건섭 경주대학교 지역개발연구소 1998 地域開發論叢 Vol.- No.1

TMCP 강재를 사용한 용접 H형강 보-기둥의 특성에 관한 연구

문태섭,김규석,김동규,김덕재 서울市立大學校 1993 論文集 Vol.27 No.-

This paper is the experimental study on the behavior of welded H-shape beam-column using TMCP steel. The purpose of this paper is to evaluate the elasto-plastic behavior of TMCP steel as it applies beam-column members. In the test, H-188 ×188 ×30 ×30 shape beam-column was loaded monotonic and cyclic by parameter "e"(eccentricity). The structural behavior of specimen under the eccentric loading have been evaluated by moment-curvature relationship and load-deflection relationship. Their load carrying capacities from the result of the test are compared with the theoretical load capacities based on P-M interaction curve.

흰 쥐의 규칙적인 유산소성 운동이 혈청지질에 미치는 영향

한성섭,남태호 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-

To investigate effects of rats' treadmill movement by regulary aerobic exercise on serum lipid response 48 male while rats of Sprague Dawley (8 weeks of age) were divided into the two exercise groups (RAG of 16 rats, RBG of 16 rats) and the one control group (CG of 16 rats). The adaptation training to the environment and the adaptaion training to the treadmill running were performed for each 2 weeks, with the exercise intensity of RAG (8~14m/min, 0。~3。), RBG (8m/min,0。) respectively, 30 min/day, 4 times/week during 12 weeks' exercise. Comparing the exercise groups with the control group after exercise, I analyzed the levels of the serum lipid response between them. The conclusion acquired was as follows: 1. Compared with the control group among the exercise groups significantly decreased RBG in the body weight of each group, respectively. 2. Compared with the control group among the exercise groups significantly decreased RAG in the serum glucouse levels of each group, respectively(p<.001). 3. Compared with the control group among the exercise groups significantly decreased RAG in the serum triglyceride levels of each group, respectively(p<.001). 4. Compared with the control group the RBG group significantly decreased in the serum total cholesterol levels of group(p<.001). 5. Compared with the control group among the exercise groups significantly increased RAG and RBG in the high density lipoprotein cholesterol levels of each group, respectively(p<.001). 6. Compared with the control group among the exercise groups significantly decreased RBG, respectively in the low density lipoprotein cholesterol levels of each group(p<.001).

<千金要方>에 記載된 <傷寒論>의 考察

孔兌旭,嚴賢燮 동의대학교 한의학연구소 1998 동의한의연구 Vol.2 No.-

This study is to compare the text of Sanghan(傷寒)'s section (9 and 10th volume) in Chungumyobang(千金要方) with the text of Sanghanron(傷寒論). The conclusion obtained as follows; 1. Sanghan(傷寒) of Chungumyobang(千金要方) is made up of 201 prescription and 43 symptoms and Sanghanron(傷寒論) is composed of 113 prescription and 398 text. 58 text and 22 prescription in Sanghanron(傷寒論) is found at contents of Chungumyobang(千金要方). 2. The three puts of Sanghanron(傷寒論)-Byunsoyangbyungmaekjungbyungchi(少陽病脈證幷治), Byuntaeeumbyungmaekjungbyungchi(辨太陰病脈證幷治) and Byungwaknan byungmaekjungbyungchi(辨證亂病脈證幷治)- were not found at Chungumyobang(千金要方). 3. Chungumyobang(千金要方) used different name as compared with Sanghanron(傷寒論). For example, Gejitang(桂柱湯) is Yangdantang(陽且湯) at Guemgueyoyak(金??要略), Sosihotang(小柴胡湯) is Hwangryongtang(黃龍湯), Hyunmutang(玄武湯) is Jinmutang(眞武湯). 4. Due to different number of text and content of composition, can infer that Sonsamak(孫思邈), the writer of Chungumyobang(千金要方), didn't read Sanghanron(傷寒論) when he edit his book. 5. With Chungumikbang(千金要方), Chungumyobang(千金要方) is a very important literary work that collect and adjust Sanghanron(傷寒論) or Wangsukhwa(王叔和). Chungumyobang(千金要方), rare material, is help to suppose and make a study of the original of Sanghanron(傷寒論).

기초 건강검사에 의한 비만여고생의 신체조성ㆍ혈액성분 및 면역기능 분석

남태호,차성웅,오덕자,한성섭 釜山大學校 附設 體育科學硏究所 1997 體育科學硏究所 論文集 Vol.13 No.-

This study intended, through some basic healths test, to find out the body composition, the blood components, and the immune function of the obese high-school girls. With 2 groups of 16 subjects, the eight obese group and the other eight non-obese group, the results are following: 1. In the body composition analysis, its quantity comparison indicates that the obese group shows significance higher than the non-obese group in Body fat and Weight (p<.001). The rate of comparison per weight of body composition tells that the former shows significance lower than the latter in every item(% Water, % Protein, % Muscle, % LBM) except the item % Mineral. (p<.001) 2. In the biochemical serum test, there is much higher significance of the obese group than the non-obese group in TC and TG (p<01), but there is not any significance difference in HDL-C. 3. In the blood test, the significance difference of the obese group is much higher in RBC, Hct, PLT(p<.01) and Hb(p<.05), but not in WBC. 4. In the leucocyte test(WBC diff) to find out their immune function, the obese group shows lower significance difference than the non-obese group only in Monocyte and Eosinophil.(p<.05), but not in Neutrophil, Lympocyte and Bosophil. From the above results, the obese high-school girls seem to have a good nutrient status and show no abnormality in their body composition and blood elements. But the result of WBC diff cannot show clearly the difference between two groups, which tells the need of the further investigation on T-cells and B-cells in lymphocyte.

풍향에 따른 아파트 단지내 기체유동 및 온도 분포해석

변용섭,조재광,엄태인,장재덕,이상길 大田産業大學校 2000 한밭대학교 논문집 Vol.17 No.1

In this study, velocity and temperature profiles are calculated on the apartment complex at Dunsan area in Taejon using FLUENT code based on computational fluid dynamics (CFD). Input weather conditions which maximum atmospheric is 38.6℃, wind speed is 1.7m/sec, wind direction is west-south-west and maximum wall of apartment is 58.0℃ in summer are used to calculate the results. The simulation results are as follow ; First. velocity vectors at vertical cross section of apartment complex are influenced by the thermal buoyancy force in hot wall of apartment due to weak wind speed in the case of wind direction : west-south-west, south-west, west. Second, temperature profiles at vertical cross section of apartment complex are strongly influenced by the wind direction. Atmospheric temperature in wide area is higher 1℃ in south-west wind direction than west wind direction. Calculation results show that island in enormous apartment complex in summer. Third, temperature profiles at horizontal cross section of apartment complex present wider and more definite high temperature area than at vertical cross section of apartment complex according to wind direction. This consequence shows the effect of convective heat transfer in the rear heated wall of apartment is dominant by solar radiation. Fourth, It is necessary that an arrangement of apartments with a view of wind direction and distance of each apartments to reduce heat island in apartment and industrial factory complex in the condition of same apartment direction and area capacity. And an arrangement of apartments considering wind direction is able to enhance convective heat transfer between heated wall and wind.

일정변형률압밀시험에 의한 연약점토의 압밀특성에 관한 연구

심태섭,김선학,김승철 朝鮮大學校 建設技術硏究所 2001 建設技術硏究 Vol.21 No.1

There is the important labortary test for clays on characteristics of consolidation. This frequently used testing method was developed on the theory of Terzaghi, K.(1936). However, the standard incremental loading consolidation test(IL-consolidation test) has shortcomings, which are long testing time and limited drainage condition, in spite of its importance. So many researchers have been proposing new consolidation tests. For the purpose of decreasing test time, rapid consolidation tests were suggested and advanced testing machine for expanding of drainage conditions. Especially in rapid consolidation tests, due to simplicity and easy equipment of test device, the constant rate of strain (CRS) consolidation test has been the widely used test method and the alternative of IL-consolidation test recentely. This paper is to evaluate consolidational coefficient of soft clay by performing the strain controlled test of Constant Rate of Strain Consolidation(CRS). Compared with the conventional consolidation tests, this technique has an advantage of obtaining the coefficient within a short period of times A series of conventional tests and ORS consolition tests with different rates of strain were performed to investigate the consolidation tests with different rates of strain were performed to investigate the consolidation characteristcs of maraine clay. Preconcolidation pressures were evaluated by applying previously proposed methods for both the conventional tests and CRs tests results in order to check the legitimacy of these methods. The effects of strain rate on effective consolidation stress-strain relationship, porewater pressure, and preconsolidation pressure were also discussed. It was found that the preconsolidation pressure could define from chinnging point of the excess pore pressure. And also the maximum pore pressure was affected by the straine rate. The porewater pressure ratios during CRS tests were in range from 5% to 18%. The strain - vertical effective stress curve could apply for getting coefficient of consolidation better than the void ratio - vertical effective stress curve because of initial void ratio effect.

Preloading과 Sand drain에 의한 軟弱地盤 改良에 關한 考察

沈泰燮,安鍾弼,柳在珍 조선대학교 국토개발연구소 1987 국토개발연구 Vol.7 No.1

The Most Effective soil Improvement Method for Homogeneous thick clay stratum is preloading Method with sand drain. Selecting four subsoil strata, It has been Analyzed and measured for soil parameters, Subsoil characteristics. Predicted value and obserbed value in field was both used for the calculation's Analysis of this study, Consolidation degree-Time curve, field Settlement-Predicted Settlement, Secondary Settlement by Surcharging Loading It was found that preloading method with sand drain's a highly effective soil Imp개rement Technique through Investigation of time reducing Quantity Calculation and Soil characteristics change Quantity. The Research for this sector should be proceed more and more.

지하굴착시 지반의 변위특성연구

심태섭,김기범 조선대학교 국토개발연구소 1995 국토개발연구 Vol.15 No.2

In this thesis, on the basis of actualy measured data with the load cell installed on the anchor head of the rigid retaining wall which is constructed with the anchor-support method and with the inclinometlyer installed at the backside of the rigid retaining wall explain the characteristics of displacement in case of spot excavation by anaiyzing the dispesive aspect of horizontal earth pressure and the horizontal displacement (the former affects the security of soil retetion structure, the latter is the criterion of security proof for the wall) and comparing with the conclusion from the interpretation of elastoplastic method.