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그라우트 보강에 의한 압축형 앵커의 인발저항력 증가효과
임종철,이태형,홍석우 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.55 No.-
압축형 앵커는 현재 널리 사용되고 있는 인장형 앵커에 비해 진행성 파괴, 작업의 용이성, 경제성, 내구성 등의 면에서 보다 우수함을 인정받고 있으나 아직 국내에서는 그에 대한 연구가 부족한 실정이다. 본 논문은 국내 최초로 개발된 압축형(SSC/ Strong and simple Compression) 앵커에 관한 실내요소시험을 통하여 SSC 앵커에 대한 인발저항메카니즘을 분석하고, 압축형 앵커의 설계에 있어서 중요한 요인으로 작용되는 정착부 그라우트에 대한 강도를 평가할 수 있는 식과 함께 각자의 지반에 맞는 보강형식을 제안하였다. 본 논문의 결론은 다음과 같다. (1) 지반에 의한 구속압과 그에 의한 앵커체 내부 그라우트의 강도를 평가할 수 있는 식(5), (6), (7)을 제안했다. (2) 앵커 내하체에 보강 형식을 도입하였는데, 무보강시를 100%로 할 때 각각 132%, 147%, 217%의 그라우트 강도증가 효과가 있었다. (3) 내하체는 보강에 의한 강도증가효과와 지반의 구속압에 의해서 내하체 강도증가비가 최고 (R)=8.23까지 증가하는 것을 확인할 수 있었다. (4) 앵커 내하체의 그라우트 강도증가효과의 적용성을 보면, 풍화토에서는 보강형식 중 강관에 의한 보강이 유리하고, 경암과 같이 단단한 지반에서는 보강을 하지 않더라도 내하체의 강도는 충분히 크다. (1) The formula, which is able to calculate the grout strength in the fixed part of SSC anchor, is suggested. (2) The strength increment ratios(R) are 100%, 132%, 147%, 217% according to the reinforcing types of grout. The reinforing types are Non, Outside spiral, Inside-Outside spiral, Steel pipe, respectively. (3) The strength increment ratios(R) by reinforcement can be 8.23 times by the strength increment effect according to the reinforcement types and ground confining pressure. (4) The reinforcement Steel pipe is most effective in decomposed soil. Otherwise, in the case of hard rock ground, grout itself is very high by high confinning pressure, and so there is no need to use reinforcement.
소의 受精卵 移植에 관한 硏究 : II. 性成熟 過程의 처녀우의 多排卵 誘起와 受胎에 관한 硏究
任京淳,李用斌,鄭丘敏,金鍾國 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.1
This experiment was carried out to investigate the effects of superovulation on the ovarian response and embryo production of young and matured heifers. The possibility of mon-surgical recovery from the young heifers and transfer of recovered embryos to the mature recipients was also investigated. A total of 8 heifers(5 heads of Holstein, 2 Heads of Korean Native Cattle(KNC)and one head of Angus×Hereford crossbreed)were devided into 2 groups by their age. Young heifers(Group I)were 7∼10 months old and mature heifers(Group II)were 12∼18 months old. Group I and II were superovulated with muscular injection of 1,000 or 2,000 IU Pregnant Mare's Serum Gonadotrophin(PMSG)on day 10∼12 of estrus cycle followed by muscular injecion of 25mg Prostaglandin F ₂α(PGF₂α) 48 hours later. Heifers were artificially inseminated or copulated 2∼3 times with the interval of 12 hours while they were in heat. The embryos were collected non-surgically on day 6 of estrus cycle. The results obtained from this study were summarized as follows: 1. The average number of corpus lutea(CL) by the superovulation treatment was much greater in Group 11(9.2)than in Group 1(3.2) 2. The average number of unruptured follicles by the superovulation treatment was much greater in Group II(6.8)than Group I(1.0) 3. The interval to onset of estrus after PGF₂αinjection was longer in Group I(44.2 hours)than in Group II(31.8 hours).
임종찬 釜山大學校 1990 人文論叢 Vol.37 No.1
Kon-gang was the poet who showed several step of development in his works. 1st step : this is the period when he belonged to KAPF, and, without the positive effort to build what the world ought to be, as a critical realist, he showed a desperat sense of confrontation toward the world. He rose to Realism eagerly, and wanted to participate in the solvement of the problems of the realistic world. And yet he didn't show a resolute or agressive attitude toward it, for he was born of the Brousoise class. Such tendency can be easily found among most the of authors belonging to KAPF. 2nd step : this is this period which followed the arrest of KAPF, and therefore he couldn't behave as a KAPF on appearance. Then he compared his situation to that of an animal, turuing the reality into comedy, making an excuse for his attitude, concealing a sense of canfrontation toward the outer realistic world in his mind. He just described the reality figuratively, so that the hidden aggressiveness in his mind was not to be found to the public. This means the decline of Realism which had been shown in his early works. In the works during this period a sense of frustration alone was reflected. 3rd step : this is the period of liberation when he removed the western-oriented elements having been penetrated in his works up to this period. Then he created his new poetic worlds with the korean rhythm and emotions 1) modeling on Goryeo Sokyo : 2) founded on the Ballad : 3) showing a new perception and creation toward Sijo literature. These stages shows the private efforts that he made to pursue the nation-wide union after the break-down of the life of the national community. In short, he realized the concept that literature should be a means through which one can respond to or overcome the social situation concerned. Like other KAPF members, he experienced several steps of literay development, but he showed he had his own essential point for creation as one of passionate poets.
임종찬 釜山大學校 1989 人文論叢 Vol.34 No.1
The arguments discussed so far can be summarized as follows. First, Paeksu's sijo works have a consistence in poetic enclosure, Most of old sijo works have a closed form of enclosure, which serves as one of the essential devices for making sijo ; while sometimes some of them have an open form of enclosure to give variety to its form. As for Paeksu's sijo, all of them have closed form of enclosure. For 1) he wanted to heighten poctic tension : 2) he intended to resemble old sijo in form : 3) he'd grasped the Poetic enclosure form of sijo as one of the single merits that sijo alone the has, which surpasses other subgenres of poetry Second, Paeksu tried 1) the variety of images, 2)multi-syllable foot(과음수음모) , in order to express a single world of his own. Third, paeksu 1) also adopted chinese words moderately while creating new chinese poetic words : 2) at the same time created new korean poetic words for a better command of poetic language. Though some cases were awkward ones, most eases were successful. Fourth, Paeksu often adopted the couplet form into his sijo works. The couplet form adopted can be sorted into two sorts; 1) if it is A, it is B: 2) if it is A, it is B : if it is C, it is D. Each form sometimes appears within one line or within succeeding two lines. The conclusion drawn from the above is that paeksu can be regarded as one of the influential, important sijo poets who modernized the sijo form.
[논문]SCP 설치지반의 압밀침하특성에 관한 실험적연구
임종절,김동호,박이근 釜山大學校生産技術硏究所 2004 生産技術硏究所論文集 Vol.63 No.-
바야흐로 개방화 시대를 맞이하여 세계 각국들과 교역량이 늘어나면서 여러 제반시설을 필요로 하게 되었다. 특히 항만과 같은 대규모 공사의 기초 작업으로 먼지 해야할 일은 시공 예정지역에 형성되어있는 해양의 연약점성토 지반을 개량해서 강도가 높은 안정된 기초를 가지게 하는 것이 중요하다. 토압, 지진, 파압 둥에 우수함이 이미 일본 등 여러 나라에서 검증되어 온 SCP공법은 우리의 지반조건에 맞는 설계자료가 필요하다. 이를 위해 본 연구에서는 SCP 압밀실험에서 치환율에 따라서 압축지수의 변화관계를 분석하였다.
지반의 진행성 파괴와 기초의 크기 효과를 고려한 지지력 특성에 관한 실험적 연구
임종철,안민홍,홍석우,강정철,여종인 釜山大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.56 No.-
얕은 기초의 지지력을 산정하는데 있어서 기존 이론의 지지력계수(Nc,Nr,Nq)는 흙의 내부마찰 각 φ만의 함수로 표현되어져 있다. 그리고 조밀한 모래지반에서는 동시파괴(전반전단파괴)가 발생한다고 가정하고 있다. 본 논문에서는 주문지 표준사를 이용하여 중간·조밀한 모래지반을 제작하여, 재하폭 B를 변화시켜 실험하였다. 실험 결과, 조밀한 모래지반에서도 진행성파괴가 발생하며, 지지력계수 Nr의 평가에 있어서 내부마찰각 φ뿐만 아니라, 재하폭 B의 영향이 고려되어져야 함을 알 수 있었다. The bearing capacity factors(Nc,Nr,Nq) of an existing formulae are the function of only internal friction angle(φ) in calculating of ultimate bearing capacity of shallow foundations. And it is assumed that the simultaneous failure(general shear failure) occurs in the dense sand. In this study, the medium to dense sand grounds are formed by Joomunjin standard sand, and the laboratory medel tests are made with the change of load-width(B). By test it is known that the progressive failure is also occurred in the dense sand ground and so the bearing capacity factor(Nr) should be considered for not only internal friction angle(φ) but also the effect of load-width(B).
시조문학의 意味構造 : In what meaning structure is each line connected with another 各章은 서로 어떤 의미연결로 이어져 있는가
임종찬 釜山大學校 1981 人文論叢 Vol.20 No.1
<Abstract> When we read Gosijos, we can find something that, we feel, belongs to Gosijos, which we can't find in any other poetry. When we sum certain poems up as Gosijos, it results from the fact in them we can find certain meaning structures which belong to Gosijos. The aim of this thesis is to find out what the meaning structures of Gosijos are. As a result, I can find five types of the meaning structures. Here are 5 figures that show you the meaning structures of Gosijos. I believe these figures, as one of important data, will contribute to studying or composing Sijos.
토사터널 보조공법 중 마이크로파일공법의 적용성에 관한 기초적 연구
임종철,고호성,홍석우 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.55 No.-
본 연구에서는 토사지반에 터널을 굴착할 경우 보조공법으로서 사용되는 마이크로파일의 적용성을 검토하기 위해 그 보강효과를 모형실험을 통하여 분석하였다. 특히, 보강방향, 보강형태, 보강범위의 영향에 연구의 초점을 맞추었다. 실험의 결과는 당므과 같다. ① 마이크로파일의 효과적인 설치방향은 dε₃방향이며, 이때의 설치각도는 수평과 60°각도를 이룬다. ② 마이크로 파일설치형태를 볼 때, 개방형보다는 폐쇄형이 더욱 효과적이다. In this study, the reinforcing effect of micro-pile for the soft ground tunnel is analysed by the laboratory model tests. Especially, the effects of diretions, types, and range of reinforcement are focused. The results of tests are as follows: ① The effective installation direction of micro-pile is dε₃ direction, and the most effective installation angle is 60 degree for the horizontal direction ② the closed type is more effective than the opened type of micro-pile installation.