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토사 주입과 배수 시 원형 아크릴 튜브 구조체의 압력 변화에 대한 실험적 연구
김형주 ( Hyeong Joo Kim ),원명수 ( Myoung Soo Won ),이장백 ( Jang Baek Lee ),박태웅 ( Tae Woong Park ) 한국복합신소재구조학회 2015 복합신소재학회논문집 Vol.6 No.3
A series of injection and drainage test were conducted on an circular acrylic tube to investigate the pressure generated by the accumulated fill materials inside a circular acrylic tube structure. The acrylic tube was filled by means of gravity filling with a slurry material having an average water content of 700%. The water head during the filling process was 1.8m and the bottom pressure during initial filling was 20.18kPa. The recorded stress at the sides of the acrylic tube was 17.89kPa during the filling process and was reduced to 13.58kPa during the leaving process. Continuous drainage of the acrylic tube has greatly influenced the stresses around the tube structure. As the water is gradually allowed to overflow, the generated pressure at the topmost pressure sensor of the tube was reduced further to 2.17kPa. Eventually, the initially liquid state slurry material transforms into plastic state after water has dissipated and substantial soil particles are deposited in the acrylic tube. The final water content of the deposited silt inside the acrylic tube after the test was 42%. It was found that the state of stresses(geo-static earth pressures) in the acrylic tube was anisotropic rather than isotropic.
토사 주입과 배수 시 원형 아크릴 튜브 구조체의 압력 변화에 대한 실험적 연구
김형주,원명수,이장백,박태웅,Kim, Hyeong-Joo,Won, Myoung-Soo,Lee, Jang-Baek,Park, Tae-Woong 한국복합신소재구조학회 2015 복합신소재구조학회논문집 Vol.6 No.3
A series of injection and drainage test were conducted on an circular acrylic tube to investigate the pressure generated by the accumulated fill materials inside a circular acrylic tube structure. The acrylic tube was filled by means of gravity filling with a slurry material having an average water content of 700%. The water head during the filling process was 1.8m and the bottom pressure during initial filling was 20.18kPa. The recorded stress at the sides of the acrylic tube was 17.89kPa during the filling process and was reduced to 13.58kPa during the leaving process. Continuous drainage of the acrylic tube has greatly influenced the stresses around the tube structure. As the water is gradually allowed to overflow, the generated pressure at the topmost pressure sensor of the tube was reduced further to 2.17kPa. Eventually, the initially liquid state slurry material transforms into plastic state after water has dissipated and substantial soil particles are deposited in the acrylic tube. The final water content of the deposited silt inside the acrylic tube after the test was 42%. It was found that the state of stresses(geo-static earth pressures) in the acrylic tube was anisotropic rather than isotropic.
준설토 활용 지오튜브 거동 분석을 위한 대형 실험토조 소개
김형주(Hyeong-Joo Kim),원명수(Myoung-Soo Won),성현종(Hyun-Jong Sung),이광형(Kwang-Hyung Lee) 한국지반신소재학회 2013 한국토목섬유학회 학술발표회 Vol.2013 No.4
The trending use of Geotubes in Korea has initiated numerous researches and case studies that where performed mostly in field tests. However, there has been no research which analysis the behavior of the geotube deformation through a field size model which exclude external factors. This paper introduces a large scale experimental tank that uses a geotube with properties similar to that of field sizes. The large scale experimental tank will be used to examine the behavior of geotube and reclaimed soil’s interaction and deformation in order to improve the geotube construction technique.
김형주 ( Kim Hyeong Joo ) 한국칸트학회 2017 칸트연구 Vol.39 No.-
본 연구는 『순수이성비판』에 등장하는 칸트의 데카르트 비판을 문헌학적 분석을 통하여 사실적으로 드러내고, 이 비판의 선험철학적 근거를 밝히는 것을 목적으로 한다. 이를 위하여 멘델스존을 포함한 볼프류의 이성심리학자들을 넓은 의미의 데카르트주의자로 보고 이들의 이론에 대한 칸트의 이해를 데카르트 자신에 대한 칸트의 이해와 구분한다. 그리고 논의의 초점을 후자에 집중하기 위해 연구의 범위를 데카르트의 Cogito테제에 대한 칸트의 직접적인 평가가 등장하는 `오류추리`장의 멘델스존에 대한 반박에 속한 한 각주(B422 Anm.)로 제한한다. 그 다음 Cogito테제에 대한 칸트의 비판의 첫 번째 근거가 대전제의 부재로 인한 형식적 불완전성에 있다는 사실을 밝힌다. 나아가 그것의 형식적 완전성을 우리가 임의적으로 복원시켜 주기 위해 `생각하는 모든 존재는 존재한다`는 문장을 Cogito논증의 대전제로 취한다 할지라도 칸트의 입장에서는 이를 받아들일 수 없다는 사실을 논증한다. 이를 통하여 그의 데카르트 비판의 본질은 바로 이 대전제가 갖는 내용상의 불건전성이라는 사실을 밝힌다. 마지막으로 칸트가 이 대전제를 받아들이지 못하는 데에는 선험론적 근거가 놓여 있는데, 이는 데카르트의 자기충전적 자아관과 칸트의 경험의존적 자아관 사이의 차이에서 비롯된다는 사실을 논증한다. Die vorliegende Arbeit beschaftigt sich vornehmlich damit, die Kritik Kants an Descartes in der KrV sachlich darzustellen, und ihren transzendentalen philosophischen Grund aufzuzeigen. Um an dieses Ziel zu kommen, versuche ich zunachst die kantische Interpretation uber die Idee von Descartes selbst von der Idee von den Cartesianischen zu separieren, wie sie die genannten rationalen Psychologen Wolff und Mendelssohn vertreten haben. Da diese Arbeit fokussieren soll, wie Kant Descartes eigentlich genau versteh t, begrenzen wir den Bereich der Analyse auf die Stelle B422 Anm., die im Kapitel `Paralogismen` verortet ist. Es soll gezeigt werden, dass Kant zuerst an der formlichen Falschheit der Cogito-These Cartesius festhalt, die wegen des fehlenden Obersatzes` alles, was denkt, existiert` entsteht. Obwohl wir diesen fehlenden Obersatz in der Cogito- These anschließend erganzen und die Form des Schlusses vervollstandigen, wird behauptet. dass die These bei Kant dadurch (immer noch) nicht triftig wird, weil der Obersatz von ihm letztlich nicht akzeptiert werden kann. Diese Untriftigkeit ist eigentlich der Kern der Kritik. Abschließend wird aufgrund der vorherigen Diskussionen behauptet, dass der transzendentale Grund dafur, dass Kant den Obersatz nicht akzeptieren kann, in der Differenz zwischen dem erfahrungsabhangigen Ich-Begriff Kants und dem selbstgenugsamen Ich-Begriff des Cartesius besteht.