鐵缺乏性貧血

沈台燮 최신의학사 1976 最新醫學 Vol.19 No.6

지반굴착시 J.S.P 공법에 의한 지반보강 효과에 관한 연구

심태섭,기완서,주승완 조선대학교 국토개발연구소 1997 국토개발연구 Vol.17 No.1

Recently, in order to utilize of underground space, a large scales underground excavation work including large building basements and subway construction have a tendency to increase rapidly in urban areas. This study deals with the horizontal displacement, Bending Moment, Shearing Force of the Propped retaining walls, based on the measuring results which were obtained from two excavation construction stations, and for the purpose of reinforcement of ground and cut-off of ground water behind the Propped retaining wall, high pressure jet grouting is widely used. Therefor the purpose of this paper is to investigate the effects of jet grouting on ground reinforcement and cut-off the ground water behind Propped retaining walls. The results of permeability improved ground were 1×10^-3cm/sec smaller than those of the original ground and the high pressure jet grouting hassufficient effects on reinforcement of ground.

강우시 불포화 토사사면의 간극수압 변화 특성

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

This study manufactured model slope in soil. When it is rainfall. It experimented weathered granite soil to be distributed in korea mostly as dividing into two soil sample SP, SM, Moreover, inclination of slope(1:1~1:2) and rainfall strength (50~150mm/hr) divided into five step and it observed seepage behavior of slope according to inclination of slope and rainfall strength. It has manufactured six pore water pressure cells in the lower end of model soil box for measuring pore water pressure to be most important factor of slope failure and analyzed change of pore water pressure according to location of slope when rainfall is continued. Change of saturation depth according to experiment condition is measured through the whole soil box by eyes. In result, in case of being in different rainfall strength in sample inclination. The higher rainfall strength rises, The faster seepage of rain progresses. If angle become gentle from 1:1 to 1:2, The seepage velocity increase, too. If compared theoretical number to calculate by ◁수식 삽입▷ (원문을 참조하세요), that Lumb propose with seepage depth to be measured through indoor model test. As a result, Seepage velocity to measure actually is faster than seepage velocity by formula for Lumb to propose If angle become steep, If shows a tendency for pore water pressure to increase in slope angle from 1:22 to 1:1.5. But in angle from 1:1.5 to 1:1, If angle become steep, It shows a tendency for pore water pressure to decrease gradually as standardizing slope angle 1:1.5, According to rainfall strength increases from 50mm/hr to 150mm/hr. Pore water pressure increases in proportion to rainfall strength.es with the much increase of the pore water pressure.

조경식물 유지관리 공종별 분류체계의 적정화에 관한 연구 : 공공건물의 수목/잔디 유지관리를 중심으로 Focused on the Landscape Trees and Grasses of public institutions

심태섭,김태진 한경대학교 2003 論文集 Vol.35 No.-

This study was aimed to presenting the basic materials needed for maintenance working procedures for landscape plants. It was suggested in the form of model budget standards. the references of model was based on the maintenance fields working data sheets, questionnaire, and related policies of other nations. Study method was analyzing the materials obtained by exploratory visits to the landscape settings, interviews with the working staff and the experts, the questionnaires, and reviewing the foreign nation's related data. The result of the analysis based on the data were as follows; 1. The re-amendment of standard maintenance working procedures was urgently needed for current standard was so much out of dated. 2. There appeared the necessity of re-amendment and new registration of the detailed process and standards to meet the development and progress of the landscape fields. 3. The landscape maintenance operation standards should be presented to its professionals as the useful and practical guidelines Through the maintenance situations of the surveyed settings, questionnaire survey, and field work analyses, it was concluded that new maintenance work classification and standards should be developed. The limitation of this study was that the survey was conducted confined to the public institution settings. The further research was carried out to more various maintenance settings.

PDA를 이용한 말뚝의 지지력에 관한 연구

심태섭,주승완,최성열 朝鮮大學校 建設技術硏究所 1999 建設技術硏究 Vol.19 No.2

When we make a civil construction of a lots models of architecture and building, there is coming into operation as a number of pile static and dynamic pile load test. And also it is taking the first consideration static loading to use loading methods of dead load, reaction pile and anchor. However, it is fact the pile load test sets up only for one target Because price and time which made extremely of a little constructed pile. And it does not have methods which decided permit load of foundation pile from the results of dynamic loading test. On the contrary, Pile Driving Analyzer can not even investigate the pile of whole bases that include driving construction drivability of pile, fitness of driving equipments, the soil condition, be rising pile owing to construct group pile, displacement change of bearing capacity's for pile following by the time elapsed, as well as judge all of subject but also it is able to manage of driving to gain a little bearing capacity's unless the pile damage somethings to incite decide without the object to determine of bearing capacity. It is possible for driving management and judge to fitness. It is able to inciting driving equipment and system, pile fit assembling. And able to get rid of an average error about arising of driving modeling or efficiency deduction. That is why using pile's input data of power an3 speed. On this research, it divided PCø400 (the first site) 4 place of spot piles and PHCø 400 (the second, third site) 4 place of spot PHC piles out of 8 piles load test 3 place of spot by using PDA. And then we earned conclusion by comparison and analysis about pile's ultimate bearing capacity, skin friction resistance range and volume, end bearing resistance, allowable bearing capacity, settlement by using CAPWAP, Davisson, Case method. The conclusion is as following. 1) The CASE method's numerical value of pile's ultimate bearing capacity is a little more than CAPWAP's analysis. the scope is 516% degree. 2) The rate of Divided safety factor allowable bearing capacity numerical value is turned out 1-11% more than the rate of total safety factor allowable bearing capacity. 3) Allowable bearing capacity numerical value by CAPWAP's analysis is 67% of allowable bearing capacity numerical value by Davisson method.

성토재하에 따른 연약지반의 거동양상

심태섭,김선학,신태욱,성경화 朝鮮大學校 建設技術硏究所 2003 建設技術硏究 Vol.23 No.1

In this study, the behavior analysis of the soft ground is carried out by CRISP 4.02, finite element program using Modified Cam-Clay Model. The used values of the initial parameters were assumed rationally to represent the initial conditions of the ground. In order to analyze the behavior aspect of the soft ground, theory formula, field measure data, and finite element analysis were respectively compared. The result of the present finite element analysis were overestimated in comparison with field measure data. However, field measure data was overestimated in comparison with FEM concerning excess pore water pressure because of the efficiency degree of drain materials and decrease of permeability in the process of consolidation. Both the results of FEM and estimated values by hyperbolic mode1 were overestimated in comparison with field measure, data concerning settlement after three step embankment, but the results of FEM in comparison with estimated values by hyperbolic model were closer field measure data. Therefore, FEM under the careful laboratory tests is recommended as a future research concerning behavior aspect soft ground.

Stress-Strain Curves in Multiaxial Cubical Test

沈泰燮 조선대학교 국토개발연구소 1983 국토개발연구 Vol.5 No.1

The New designed Main Device for Cubical Testing facilities is described Typical Stress-Strain Curves are discussed Between Conventional Triaxial Compression Test and Multiaxial Cubical Test For Cohesive Soil and Cohesionless Soil. Tests were Performed on disturved Soil by Undrained Test. Figure 10 and 11 showns the Two Superimposed Stress-Strain Curves. The Results are shown in Figure which it can be seen that excellent Agreement was obtained up to the Peak Strength. I believe that this Multiaxial Cubical Device will devote to the Progress on the Analysis of Soil Behavior.

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.

암반사면의 안정을 위한 신뢰성 해석에 관한 연구

심태섭,기완서,주승완,백재상 朝鮮大學校 建設技術硏究所 2000 建設技術硏究 Vol.20 No.1

The stability of rock slope is mainly controlled by the engineering properties of discontinuities in the rock mass. Design method for deciding the cutting angle of rock slope must involve the significance of the mechanical and hydraulic characteristics of discontinuities on the shear strength of the rock mass. However most methods consider only rock strength as a prime factor for slope design, which sometimes result in failure. The optimum design of rock slope based on the limit equilibrium theory can vary significantly according to the mechanical characteristics of the discontinuities. Therefore, unless the level of ground water and its seasonal variations are accurately investigated, the reinforcements of any kind must be installed, besides the lowering of cutting angle, to ensure the stability of rock slope. This study is analyzed the stability of rock slopes by computing limit equilibrium theory. By analyzing probability of failure in rock slope, this study is analyzed the probability.

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.