鐵缺乏性貧血

沈台燮 최신의학사 1976 最新醫學 Vol.19 No.6

Caisson基礎의 設計特性에 관한 考察 : A Study of Caisson Foundation Design Characteristics

沈泰燮 조선대학교 국토개발연구소 1981 국토개발연구 Vol.3 No.1

本 硏究는 케이슨 基礎의 設計特性에 관한 고찰이다. 케이슨 기초의 설계시 許容耐力을 求하는 방법이 여러 가지 있으나 그중 사용도가 높은 건설부의 도로교 하부구조 설교지침(Ⅱ)와 池原ㆍ橫山式, 物部式을 반력분포도에 의해 比較檢討 하였다. 그 결과 도로교 하부구조 설계지침이 水平支持力을 考慮하고 土質定數를 利用하고 地盤을 탄성체로 취급하여 計算된 설계법임을 알게 되었고 현저히 合理化됨을 알았다. 제시한 특성들을 실제 설계시 이용하리라 생각한다. This paper is study on the design characteristics of Caisson Foundation. In Caisson Foundation design There have many methods of allowable stress's calculation. but I took best utility three methods. ① Highway substructure design indicator(Ⅱ) ② Mono Bu Formula ③ GiGen yokoyama Fomula, and had a comparative study for their characteristics by reaction distribution diagram. From the results, There have some design characteristics and Highway substructure design indicator(Ⅱ) is best rationalization of them. I hope that this paper will be use in caisson Foundation design.

준설매립연약지반에 대한 개량공법의 적용에 관한 연구

심태섭,송종현 조선대학교 국토개발연구소 1994 국토개발연구 Vol.14 No.2

One of the most used soft ground Improvement Technique, especially such as sand drain are to considered on dredging-rec;aimed land. This study has been analyzed consolidation characteristics into comparuson between a field measurement result and theoretical calculation on dredging-reclaimed land. The Analysis results are follow: ① It was found that Been & Sills theory's Application is good agreement with self-weight consolidation problems. ② A hyperbola method of all calculation method for forecast consolidation settlement quantity gets almost actual survey. ③ It was Found that a sand drain method with preloading is effectiveness on dreaging-reclaimed land improvement.

補强土擁壁의 安定과 變位 解析에 관한 硏究

심태섭,주승완,정상국 조선대학교 국토개발연구소 1995 국토개발연구 Vol.15 No.1

The purpose of this study, using model programs for interpretation, is to examine the methods of interpretation on the safety of reinforced earth retaining walls in usual time and seismic and to increase safety in building reinforced earth retaining walls. In this study, using theoretival destruction areas in vertical wall and Coulomb ones in declined wall, the study on the interpretation on the safety of reinforced earth retaining walls leads to the following conclusions. 1. The desturction area of Coulomb is safe in usual time under the same conditions. 2. In an earthquake, the safety rate of theoretical destruction areas drops more sharply than usual. 3. In an earthquake, the safety rate of both theoretical and Coulomb destruction area in the pull-out of reinforce materials drops more sharply than in the destruction. 4. When the destruction area of Coulomb is used, a sudden destruction can be prevented.

地震時 擁壁에 作用하는 主動土壓에 關한 硏究

沈泰燮,鄭相國 조선대학교 국토개발연구소 1995 국토개발연구 Vol.15 No.1

This study have studied for computation Active Earth Pressure for various theory and made program of Mononobe-Okabe theory of most available theory and had statistical analysis for coefficient relationship The conclusion of the study are follows; 1. At Kh-PAE Relationship mean variation quantity of Active Earth Pressure during earthquake according to internal Friction Angle of Backfill(φ) and β variation is 1.84, 1.80 respectively. This affected considerable to the Active Earth Pressure during Earthquake computation. 2. At Kh-PAE Relationship Active Earth Pressure Variation during Earthquake due to Kv change is not considerable value. 3. At Kv-P_AE Relationship Kv gives small affect to the computation of Active Earth Pressure during Earthquake, but owing to the increase of internal friction Angle of Backfill(φ), Active Earth Pressure during Earthquake is slightly decrease and increasing of β gives Active Earth Pressure during Earthquake increase. 4. At Kv-P_AE Relationship Active Earth Pressure during Earthquake is slightly decrease due to K_h and δ increase.

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.

Pile의 設計에 使用되는 水平地盤反力 係數 k값의 推定法에 관한 考察

沈泰燮,柳萬容 조선대학교 국토개발연구소 1979 국토개발연구 Vol.1 No.1

This paper is attempted to the study on the deduction of coefficient of horizontal subgrade reaction "k" value using pile foundation. In this paper, it has been analyzed horizontal loading test example of many piles by the stastics expound and investigated to the relation of "N" value of the coefficient of horizontal subgrade reaction "k" value which is needed design of the pile foundation. The order of calculation is follows. 1) It seeks for the average "N" value of 1/3 section on the pile. 2) It decides C₂section of Table-3 on the soil section to repersentate of the same section. 3) It seeks "h。" from form(10). 4) After get "h。" displacement" " on the surface of the earth for any load(horizontal force) get in form(4) This attempt has been made to determine "k" value by "N" va,ue and soil section. It is evident that we need more soil information for improvement of precesion degree of presumtion.

연약지반의 Geotextile 포설시 사석치환량에 관한 연구

심태섭,지성필 朝鮮大學校 建設技術硏究所 1998 建設技術硏究 Vol.18 No.2

This study was attempted to investigate the plastic settlement quantity for embankment in soft strata. In design of embankment on soft stratum, the replacement quantity of cobble are depend upon the determination of assumed settlement line. Two working site was selected and compared between theoretical solid settlement quantity and real quantity under the check boring. Obtained results are summarized as follows : 1. When geotextile laid down on soft ground under embankment. The effect of bearing capercity was found to be poor value. 2. Real quantity of forced replacement quantity has less value than theory's value under the field investigation. 3. Analizing of a check boring and a assumed settlement Line, It was found that in design, determination of assumed settlement Line need to It's correction.

集中降雨時 無限斜面의 剪斷强度特性에 關한 實驗的 硏究

심태섭,김선학,신태욱,최용준 朝鮮大學校 建設技術硏究所 2004 建設技術硏究 Vol.24 No.2

Granite weathered soil obtained from the cutting slope is divided into two sample materials of SM and SP on the basis of the Unified Soil Classification System (USCS), manufactured the model slope consisting of these, and the pore water pressure and the depth of seepage according to the inclination of the slope and the precipitation strength are measured. From the result of the experiment, the pore water pressure is increased in proportion to the precipitation strength, which is proportionally increased to the inclination of the slope and tends to be decreased when it meets the steep slope of more than 1:1.5. The speed of seepage to the slope in accordance with the precipitation is turned out fast when the inclination of the slope is gentle; according to the result of the Lumbs suggested formula, the actual speed of seepage is faster than the theoretical speed. The shear strength within the slope is decreased as the precipitation strength increases, and since it shows the minimum value at the inclination of the slope in 1:1.5, it can be said that the shear strength declines due to the' increase of the pore water pressure within the slope. Also the slope consisting of SP is faster in the seepage compared to that of SM: and the likelihood of the slope failure is a lot bigger as the shear strength greatly declines with the much increase of the pore water pressure.

다짐도에 따른 화강풍화토의 역학적 특성

심태섭,기완서,주승완,김선학 朝鮮大學校 建設技術硏究所 2002 建設技術硏究 Vol.22 No.1

In this study do we collect the Wethered Granite Soil of Gwang-ju Pung -am district and Youm-ju-dong Gwang-ju world cup stadium construction field and identify physical character according to basic physical test and summerged the sample of 85% degree of compaction in the dry side and wet side in a water tank for ten days on the basis of the sample of 80%, 85%, 90% degree of compaction and Optimum Moisture Ratio in the Optimum Moisture Ratio state in order to exam permeability and compression character of the Weathered Granite Soil according to the compaction state of retaining wall, abutment bankfill banking. We perform falling head permeability test and them standard compaction test and calculate coefficient of permeability and consolidation constant according to the test result. We have a mind to clear permeability and compression character of the Weathered Granite Soil of this study area according to relation curve of the calculated coefficient of permeability, consolidation constant and void ratio, degree of compaction. Therefore compression constant, according to the compaction energy of Optimum Moisture Ratio, is in inverse proportion linearally in the Weathered Granite Soil of WGS-1 and WGS-2 and coefficient of permeability increase directly in a range of void ratio e=0.627∼0.779. e=0.6.57∼0.800.