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奎章閣 소장 『從宦日記』의 저자 고증 및 사료적 가치
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- 저자 : 심태섭 ( Tae Sup Shin ) (검색결과 4 건)
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강우재현 모형실험과 함수특성곡선실험에 의한 화강암질 풍화토의 함수특성곡선에 관한 연구
김선학 ( Sun Hak Kim ),박노환 ( Noh Hwan Park ),심태섭 ( Tae Sup Shin ) 조선대학교 공학기술연구원 2008 공학기술논문지 Vol.1 No.2
A simulated rainfall system was built, and the unsaturated characteristics were examined by execution of simulated rainfall system test and soil water characteristic curve(SWCC) cell test under the various rainfall and slope conditions. With the results, the applicability of infiltration behavior under rainfall and soil water characteristic curve models to the unsaturated weathered granite soil was examined. When the soil water characteristic curve derived from measurements in simulated rainfall system test were compared with those from the soil water characteristic curve cell test, both methods produced soil water characteristic curves close each other in the wetting process and the drying process, but in both, there was a difference between results obtained from in the wetting process and those from in the drying process. Thus, when soil water characteristic curves are rationally applied to the design and stability analysis considering of the properties of unsaturated soil, it is considered desirable to apply the soil water characteristic curve of the wetting process to the wetting process, and that of the drying process to the drying process.
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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.
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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.
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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.
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