• Title/Summary/Keyword: Settlement analysis

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Weights of Attributes in Creating Transit Malls (대중교통전용지구의 조성목적에 따른 계획요소별 중요도 평가)

  • Park, Jong-Il;Chang, Justin S.
    • Journal of Korean Society of Transportation
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    • v.32 no.2
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    • pp.130-138
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    • 2014
  • This paper assessed the weights of attributes in creating transit malls. The aim of the creation was classified as travel demand management and urban revitalization. The attributes were grouped into four aspects, or 4As: attraction, amenity, accessibility, and activity. These dimensions represented land-use, urban design, transport, and socio-cultural characteristics, respectively. The analytical hierarchy process was applied to explore the weights. Accessibility(52.7%), attraction(25.6%), amenity(13.7%), and activity(8.0%) were the order of magnitude in weights for the purpose of travel demand management, while attraction(36.1%), accessibility(30.6%), amenity(17.7%), and activity(15.6%) were that of urban revitalization. The multi criteria analysis also showed different size of weights in the sub planning attributes. These results indicate that the aimin implementingtransit malls should be differentiated and highlight that the combined land-use and transport plan is essential for the successful development. Car accessibility and socio-cultural characteristics are also understood as the important factors.

A Study on the Curriculum Development of Continuing Education for Academic Librarians in Korea (대학도서관 사서를 위한 전문 계속교육과정 개발에 관한 연구)

  • Chang, Hye-Rhan;Hong, Hyun-Jin;Noh, Young-Hee;Oh, Eui-Kyung
    • Journal of the Korean Society for Library and Information Science
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    • v.42 no.3
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    • pp.133-168
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    • 2008
  • As the library and information environment advanced, librarians should participate in continuing education programs for the improvement of services to satisfy users' need. To develop a curriculum model of continuing education for academic librarians, we reviewed related previous studies and continuing education programs performed both in Korea and overseas. Then. a survey was done to the academic librarians sampled systematically to identify the subject need for education. Based on the analysis, 2 sets of comprehensive curriculum were devised for the middle managers and working librarians respectively. The curriculum for the middle managers is consisted of 27 courses in 9 subject fields. and the curriculum far the working librarians is consisted of 25 courses in 7 subject fields. We selected one highly demanding subject from each curriculum, and developed specific educational program models. 'Library marketing' for middle managers and 'building and management of digital information resources' for working librarians. Program models include educational goal, content, teaching/learning strategies. duration time, teaching methods/tools, and instructor qualifications in detail. Finally, recommendations are suggested for the promotion and settlement of the continuing education.

Characteristics of Sedimentation and Self-weight Consolidation of Dredged clay Focusing on Fines Content and Falling Height (세립분 함유량 및 투기고에 따른 준설토의 자중압밀 특성)

  • Kim, Jin-Young;Kim, Hye-Rin;Jang, Jung-Min;Lee, Sung-Yeol;Jeong, Wun-Gie;Jin, Young-Sik;Jeong, Hyo-Jin;Baek, Won-Jin;Kang, Kwon-Soo;Goh, Nam-Young
    • Journal of The Korean Society of Agricultural Engineers
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    • v.58 no.6
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    • pp.39-45
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    • 2016
  • In this paper, analyzes the characteristics of self-weight consolidation on the dredged clay according to the fines content and falling height. Research was performed with the dredged clay sampled by Sae-mangeum field site. Classification of fines content was performed by sieve analysis test. After adjusting the fine content, self-weight consolidation tests were carried out focussing on the variation of fines content and falling heights. From the test results of the self-weight consolidation test, samples with high fines content had reached sedimentation completion more later than ones with less fine content samples. In other words, the start of self-weight consolidation was slowing down with increasing of fines content. Also, from the test results of calculating the coefficient of sedimentation consolidation, the coefficient value were increased with the fines content increases. In addition, the change of sedimentation ratio and volume ratio showed more higher changed value as the fine content increases. Thus, it is important to consider the fines content when estimate the settlement time of dredged soil in field dredge work.

Soil arching analysis in embankments on soft clays reinforced by stone columns

  • Fattah, Mohammed Y.;Zabar, Bushra S.;Hassan, Hanan A.
    • Structural Engineering and Mechanics
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    • v.56 no.4
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    • pp.507-534
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    • 2015
  • The present work investigates the behavior of the embankment models resting on soft soil reinforced with ordinary and stone columns encased with geogrid. Model tests were performed with different spacing distances between stone columns and two lengths to diameter ratios (L/d) of the stone columns, in addition to different embankment heights. A total number of 42 model tests were carried out on a soil with undrianed shear strength $${\sim_\sim}10kPa$$. The models consist of stone columns embankment at s/d equal to 2.5, 3 and 4 with L/d ratio equal 5 and 8. Three embankment heights; 200 mm, 250 mm and 300 mm were tested for both tests of ordinary (OSC) and geogrid encased stone columns (ESC). Three earth pressure cells were used to measure directly the vertical effective stress on column at the top of the middle stone column under the center line of embankment and on the edge stone column for all models while the third cell was placed at the base of embankment between two columns to measure the vertical effective stress in soft soil directly. The performance of stone columns embankments relies upon the ability of the granular embankment material to arch over the 'gaps' between the stone columns spacing. The results showed that the ratio of the embankment height to the clear spacing between columns (h/s-d) is a key parameter. It is found that (h/s-d)<1.2 and 1.4 for OSC and ESC, respectively; (h is the embankment height, s is the spacing between columns and d is the diameter of stone columns), no effect of arching is pronounced, the settlement at the surface of the embankment is very large, and the stress acting on the subsoil is virtually unmodified from the nominal overburden stress. When $(h/s-d){\geq}2.2$ for OSC and ESC respectively, full arching will occur and minimum stress on subsoil between stone columns will act, so the range of critical embankment height will be 1.2 (h/sd) to 2.2 (h/s-d) for both OSC and ESC models.

Effect of orientation of fracture zone on tunnel behavior - Numerical Investigation (파쇄대의 공간적 분포가 터널 거동에 미치는 영향 - 수치해석 연구)

  • Yoo, Chung-Sik;Cho, Yoon-Gyu;Park, Jung-Gyu
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.15 no.3
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    • pp.253-270
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    • 2013
  • This paper concerns the effect of orientation and geometric characteristics of a fracture zone on the tunnel behavior using a numerical investigation. A parametric study was executed on a number of drill and blast tunnelling cases representing different fracture and tunnelling conditions using two and three dimensional finite element analyses. The variables considered include the strike and dip angle of fracture zone relative to the longitudinal tunnel axis, the width and the clearance of the fracture zone, the tunnel depth, and the initial lateral stress coefficient. The results of the analyses were examined in terms of the tunnel deformation including crown settlement, convergence, and invert heave as well as shotcrete lining stresses. The results indicate that the tunnel deformation as well as the shotcrete lining stress are strongly influenced by the orientation of the fracture zone, and that such a trend becomes more pronounced for tunnels with greater depths.

Effective Method for Remodeling of Deteriorated Agricultural Reservoirs (노후화된 농업용 저수지의 효율적인 리모델링 방법)

  • Lee, Young Hak;Lee, Dal Won
    • Journal of The Korean Society of Agricultural Engineers
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    • v.59 no.4
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    • pp.43-52
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    • 2017
  • This study analyzed pore water pressure, earth pressure and settlement through laboratory model tests in order to suggest the effective remodeling method in the case of reinforcing the upstream and downstream slope of deteriorated reservoirs that has no cores and filters or is not functional. The method of remodeling the upstream slope using dredge soil is first prevent seepage by installing the core, and the leakage water can be rapidly discharged through a filter installed on the downstream slope. Therefore, it is considered a highly efficient method of remodeling that reduces piping phenomena and increasing the storage capacity of the reservoir. The variation of earth pressure without the core and filter was greater than with it, while the change largely showed in the upstream slope, the downstream slope did not show any significant changes. The remodeling method of the downstream slope with the core appeared differently pore water pressure depending on the presence of the vertical and horizontal filters. In the upstream slope, the pore water pressure rises sharply, the base and middle gradually increased, and the downstream slope appeared small. The pore water pressure of embankment with a vertical and horizontal filter will be smaller than without it. The remodeling of deteriorated reservoir that does not have the function of the filter, the vertical filter must be installed in a position that is higher than the expected seepage line by removing portions of the downstream slopes. Since the horizontal filter is an important structure that provides stable drainage during an earthquake or concentrated leak, it is necessary to examine any change in the seepage characteristics depending on the filter intervals via three-dimensional finite element analysis, and it should be connected to the tow-drain to reduce the possibility of the collapse of the reservoir.

A Study For The Experiential Value And Communication Perceptions Of Convergence Performing Arts (융복합 공연예술의 경험적 가치와 소통인식 연구)

  • An, Ju-Kyung
    • The Journal of the Korea Contents Association
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    • v.17 no.11
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    • pp.364-370
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    • 2017
  • Creative thinking and fusion diversity of the performing arts pursue the settlement of empirical value realization by assuming new communication by genre. This new value and communication can create a type of collective intelligence with a different attempt based on the individual communication and horizontal thinking of the masses. Therefore, the empirical value and communication of the 21st century convergence(fusion) performing arts is possible through new types and analysis, and also were understood as the horizontal creation structure of the artist. As a result, first, the concept of the right value of 'convergence' was perceived as empirical communication depending on the empirical thinking ability of genre artists. Second, off-genre and collaborative tendencies are due to cooperation based on intellectual ability and recognition of horizontal communication by genre. Third, in the collaboration, the public's individualized communication ability and universal communication recognition should be premised and perceived the empirical definition about the collective intelligence. In conclusion, it is concluded that empirical value and communication of convergence performing arts enable to the experimental creation of collective intelligence, and that the relationship structure extends to a meaningful transition of convergence interpretation and expression of performing arts.

Analysis of the effect of corporate support program participation satisfaction on corporate contribution (기업지원 프로그램 참여 만족도가 기업의 기여도에 미치는 영향 분석)

  • Kim, Young-Bu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.7
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    • pp.175-183
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    • 2017
  • In this study, the LINC project is finished and a new LINC+ has begun. For the settlement of mutual cooperation in universities and corporations, the main agenda of LINC+ project, this research attempts to find factors that are important to industries rather than the measurement of performance closely related to universities. From the companies' perspective, it is not easy to measure how much they are benefiting from mutual cooperation, although there are quantitative performance determinants such as sales, employment and export growth. Therefore, while estimating the satisfaction of industrial-educational cooperation and simultaneously estimating the satisfaction's effect to the development of companies, we try to estimate the contribution of satisfaction towards company development through subjective indicators. Through these efforts, we will raise the credibility of government policies through the cultivation of talented individuals who are customized to the industry through the cultivation of "Industry-Leading Universities" that we intend to pursue through the implementation of LINC+ business, and small and medium enterprises. Innovative support and the cooperation of industry-universities will increase job creation and ensure consistent industry. We will contribute to the mutual development of universities and industries.

A Study of effective installation patterns of face bolts using 3D-FDM analysis (터널 안정화를 위한 페이스볼트의 효율적 배치에 관한 수치해석적 연구)

  • Seo, Kyoung-Won;Bae, Gyu-Jin;Nishimura, Kazuo;Domon, Tsuyoshi
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.8 no.2
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    • pp.141-149
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    • 2006
  • For application of NATM, the self-supporting until installation of the supporting system must be satisfied. However, the face of a tunnel are always unsupported and therefore it is fairly vulnerable to tunnel collapses. Face blots are well known and widely used to prevent the deformation of the tunnel face and its circumference, which are installed horizontally toward the tunnel axis generally. To maximize the supporting effect of face bolts, this study has analysed the effective design patterns of face bolts by changing their installation angles. As the conclusion, it has been found that the axial displacement of the face increases slightly by installing the outermost bolts upward from the axis but surface settlement at 2.5D behind the face decreases up to 18%.

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Healthcare access challenges facing six African refugee mothers in South Korea: a qualitative multiple-case study

  • Kim, Min Sun;Song, In Gyu;An, Ah Reum;Kim, Kyae Hyung;Sohn, Ji Hoon;Yang, Sei Won
    • Clinical and Experimental Pediatrics
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    • v.60 no.5
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    • pp.138-144
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    • 2017
  • Purpose: Following legal reform in 2013, the annual number of asylum seekers entering South Korea has increased from 1,143 in 2012 to 5,711 in 2015. We interviewed six African refugee mothers of young children regarding their health needs and barriers to access maternal child health services. Methods: We recruited mothers who had visited a clinic for immigrants between July 2013 and August 2015. Participants were African refugee women, aged over 18 years, who had given birth in Korea within the previous 5 years and had come to Korea over a year before recruitment. Interview questions examined participants' experiences in pregnancy and childbirth and concerns regarding their child's health status. Initial data analysis involved all researchers' immersion in the entire collection of transcripts. We then noted recurrent topics and themes and identified similar issues. Results: At the time of giving birth, 5 participants were asylum seekers and one had undocumented status. The following barriers impeded their access to maternal child healthcare: socioeconomic factors (unstable social identity, low economic status, difficulty obtaining health insurance), language barriers (lack of linguistically appropriate health information, limited access to translation services), and cultural barriers (religious and cultural differences). Weak social support also hindered access to healthcare soon after migration; however, social links with the community emerged as a key coping strategy following settlement. Conclusion: We identified barriers to maternal and child healthcare and coping strategies among African refugee mothers in Korea. Future research should assess refugees' health status and improve health access and literacy among refugee mothers.