• Title/Summary/Keyword: Early settlement

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Assessment of long-term behaviour of a shallow tunnel in clay till

  • Wang, Z.;Wong, R.C.K.;Heinz, H.
    • Geomechanics and Engineering
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    • v.2 no.2
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    • pp.107-123
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    • 2010
  • Ground settlements and pore pressure changes were monitored around a shallow tunnel constructed in clay till during the excavation and primary lining installation. The settlements above the tunnel continued to develop for up to 100 days after the primary lining installation. Triaxial compression tests were carried out to estimate the short-term and long-term deformation characteristics of the till. Numerical simulation was conducted to history match the field measurements, and thus, to quantify the settlements induced by ground stress relief, consolidation and creep. It was found that the surface settlements due to ground stress relief, consolidation and creep are 17, 12 and 71% of total settlement (about 44 mm), respectively. In addition, early installation of rigid concrete lining could be an effective means to reduce the settlement due to creep.

A Study on the Transition of House Plan in Lishu Settlement of Tumen Riverside (두만강 북안 조선족 이수마을 주택평면의 변화)

  • Lin, Jin-Hua;Seo, Seung-Hyun;Kim, Tai-Young
    • Journal of the Korean Institute of Rural Architecture
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    • v.10 no.1
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    • pp.19-26
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    • 2008
  • 1) Lishu village is located in a riverside of an upper Tu-men river. Since an upper tream of Tu-men river is narrow and easy to pilot a boat, early in the past, it facilitated the form of the village near to the North Korea. 2) As for elevation, it consisted of only doors, but as time goes by, windows were made. So windows and doors were appearing much in the elevation. In 1970s', elevations are constructed in various ways; in 1980, attributed to brick housing, the elevations become much more diverse; from 1990, symmetrical elevation was revealed which consists of one door and two windows in each side of a door after 2000, the structure of the housing restored of 1930s' style which contained one window in Jungji and 1970s' style consisting of 3 windows, moreover, many free-style elevations appeared to be commercial use.

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Prediction Method of Settlement Based on Field Monitoring Data for Soft Ground Under Preloading Improvement with Ramp Loading (점증 선행 하중으로 개량하는 연약지반의 계측기반 침하량 예측방법 개발)

  • Woo, Sang-Inn;Yune, Chan-Young;Baek, Seung-Kyung;Chung, Choong-Ki
    • Journal of the Korean Geotechnical Society
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    • v.24 no.10
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    • pp.83-91
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    • 2008
  • Previous settlement prediction methods based on settlement monitoring were developed under instantaneous loading condition and have restriction to be applied to soft ground under ramp loading condition. In this study, settlement prediction method under ramp loading was developed. New settlement prediction method under ramp loading considered influence factors of consolidation settlement such as thickness of clayed layer, quantity of surcharge load and preconsolidation pressure, etc. Geometrical correction method based on hyperbolic method (1991) and correction method based on probability theory were applied to increase accuracy of settlement prediction using field monitoring data after ramp loading. Large consolidation tests for ideally controlled one dimensional consolidation under ramp loading condition were performed and the settlement behavior was predicted based on the monitoring data. New prediction method yielded good result of entire settlement behavior by using data during an early stage of ramp load. Additionally, new prediction method offered better settlement prediction which had final settlement prediction in close proximity and low RMSE(Root Mean Square Error) than previous method such as hyperbolic method did.

Mental Health Factors associated with North Korean Defectors' Quality of Life

  • Rho, In-Suk;Kang, Hee-Young;Jeon, Jeung-He
    • International Journal of Advanced Culture Technology
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    • v.7 no.2
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    • pp.19-27
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    • 2019
  • The purpose of this study was to assess mental health and quality of life (QOL) including factors influencing QOL among early North Korean defectors in South Korea. Participants were 151 early North Korean defectors residing in a settlement support center. All measures were self-administered. Unlike refugees living in communities, early defectors did not experience a high rate of mental health problems and reported a good QOL. Psychoticism was the most predictive factor affecting QOL. Findings from this study suggest the importance of mental health assessment and support over time. Psychoticism, significant in explaining QOL of early North Korean defectors, needs early diagnosis and treatment to prevent progression. Mental health issues among refugees may not be evident while they are in a structured, supportive environment. Evaluation and treatment are needed over time.

A Study on Conservation Characteristics of Architectural Style and Facade Form in the Colonial Settlement City of Williamsburg (윌리엄스버그 컬러니얼 정착마을의 건축양식과 파사드 형태의 보존특징에 관한 연구)

  • Chong, Geon-Chai
    • Journal of the Korean Institute of Rural Architecture
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    • v.23 no.2
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    • pp.1-8
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    • 2021
  • The aim of this study is to find what architectural restoration and street-scaping conservation of early settlement in Virginia, which have processed on the style of 18th centuries. One of the settlements in Virginia was Williamsburg that located in the high land between Jamestown and Yorktown. In 1698, the capital of Virginia was moved from Jamestown for the safer environment. At that time they constructed the town like a small urban that had a straight-lined Duke Glocester Street, Georgian style buildings, and landscapes of 18th centuries. Before 1928 the village was flown into ruins, but Rector of the church, Dr. W.A.R. Goodwin, understood the value of reservation to restore the village as colonial architectural style that has an original figure. John Rockefeller Jr. has taken part in his restoration of colonial style of architecture and culture. This paper surveyed nine cases of buildings and srtreet-scape on Duke Glocester Street. Most of the buildings on the street have a proposition, balance, and equipment of Georgian architectural facade in 18th centuries. The conclusion has three points. First, the Williamsburg has been reserved as an early colonial settlement through the restoration of architecture and street-scape design. Second, main architectural style is a Georgian form that has a balance, proportion, and simplicity of facade. Also new buildings and additions of architecture have to keep 'Design Review Guideline of Colonial Williamsburg' in order to contribute the existing colonial buildings. Third, the main street-scape, Duke Glocester Street shows Georgian architecture and cultural life pattern with tradition.

Relative Growth of Microstomus achne (Pleuronectidae, PISCES) during Early Life Stage (찰가자미(Microstomus achne) 초기생활기의 상대 성장)

  • Byun, Soon-Gyu;Kang, Chung-Bae;Han, Kyeong-Ho;Kim, Jin-Koo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.46 no.6
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    • pp.970-972
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    • 2013
  • We examined the relative growth of Microstomus achne during early life stages of laboratory-reared larvae and juveniles. Turning points in the relative growth of preanal length and upper jaw length against total length occurred during the settlement period (11.12-19.91 mm in total length). However, turning points in the relative growth of head length and eye diameter, as compared to total length, occurred during metamorphosis (17.57-22.47 mm in total length). Our results suggest that Microstomus achne concentrates its energy on the feeding apparatus (jaw) and digestive organs (intestine) rather than sensory or neural organs (eye, head) during early larval stage growth.

Settlement and recruitment of Mactra veneriformis R. around the inshore of Kunsan, Korea (군산연안 동죽, Mactra veneriformis의 침강과 가입)

  • RYOU Dong-Ki;CHUNG Sang-Chul
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.28 no.5
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    • pp.667-676
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    • 1995
  • Settlement, recruitment, growth and production of Mactra venerifomis were investigated at Kunsan tidal flat located in the west coast of Korea from lune 1993 to May 1994. High density of planktonic larvae of M. veneriformis was observed between the mid and early July in 1993. The size of the newly settled larvae ranged from 250 to 350um in shell length with mean density of 601$inds.\cdot m^{-3}$. Recruitment of M. veneriformis larvae was occurred mainly in the mid June to mid July 1993. The larvae have no substratum preference during the larval settlement phase. Mortality of larval was affected by environment (substratum, exposure time, density of adult clams). After settlement they grew until November, and stopped growing in winter from December. The estimated turnover rate of M. veneriformis larvae was estimated as high as 4.91 and 4.94. Annual production of the 0-age group was estimated to be 2,900g $m^{-2}\;\cdot\;yr^{-l}$, which was relatively high compared with those of other age groups.

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Effects of Family Conflict & Self Control on School Maladjustments of Early Adolescents (가족갈등과 자기통제가 초기 청소년의 학교부적응에 미치는 영향)

  • Son, Mi-Yeong;Kim, Yeong-Hee
    • Journal of Families and Better Life
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    • v.27 no.5
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    • pp.123-135
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    • 2009
  • The purpose of this study was to investigate the effects of family conflict and self-control on school maladjustments of early adolescents. Subjects of this study consisted 662 middle school students drawn from 4 middle schools in Cheong-ju city. The results of this study were as follows: First, younger students' maladjustment to teachers was influenced by variables such as school year, economic levels, conflict strength between parents, conflict settlement between parents, reliability between parents and children, communication between parents and children and self-control, etc. In other words, students' maladjustment to teachers was high at the students in the 2nd year rather than in the 1st year, low economic level, high conflict strength between parents that younger students perceived, low conflict settlement between parents, low reliability between parents and children, high hostility between parents and children and low self-control. Second, younger students' maladjustment to the class was influenced by variables such as gender, school year, economic levels, conflict strength between parents, reliability between parents and children, communication between parents and children, and self-control, etc. In other words, young students' maladjustment to the class was high at the 2nd year students rather than at the 1st year students, low economic level, high conflict strength between parents, low reliability between parents and children, poor communication between parents and children, and low self-control. Third, younger students' maladjustment to rules was influenced by variables such as school year, economic level, conflict level between parents, hostility between parents and children, and self-control, etc. In other words, younger students' maladjustment to rules was high at the 1st year students rather than the 2nd year students of middle school, low economic level, high conflict strength between parents, high hospitality between parents and children and low self-control, etc. Fourth, younger students' maladjustment to friends was influenced by variables such as conflict strength between parents, conflict settlement between parents, hospitality between parents and children, and self-control, etc. In other words, younger students' maladjustment to friends was high at high conflict strength between parents, low conflict settlement between parents, high hospitality between parents and children and low self-control, etc. In the study, self-control was found to be the most important variable at younger students' maladjustment to teachers, class and rules, etc, and conflict settlement between parents was found to be the most significant variable at younger students' maladjustment to friends.

Prediction of Long-term Settlement in the Big Reclamation Site Using GIS (GIS 기법을 이용한 대규모 매립지반의 장기침하 예측)

  • 김홍택;이혁진;김영웅;김진홍;김홍식
    • Journal of the Korean Geotechnical Society
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    • v.18 no.2
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    • pp.107-121
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    • 2002
  • In this study, GIS(Geographic Information System), a new approaching method, is proposed to effectively manage long-term settlements in the big reclamation sites. To verify an applicability of the proposed method, the prediction of long-term settlements which may occur in the overall soft deposits of the Incheon International Airport is carried out. During the process of the prediction of long-term settlements, measured settlement data obtained from an early stage of preloading are analyzed in detail. For purposes of the analysis, an estimation of the recompression index is also made based on the Nagaraj's research results. The coefficient of the secondary consolidation is further determined based on the relationship presented by the Mesri & Godlewski, which defines a ratio between the coefficient of the secondary consolidation and the recompression index.

A Study on the Settlement of Dispute through ODR Dispute Mediation System (ODR 분쟁조정시스템 활용을 통한 분쟁해결에 관한 연구)

  • Park, Chong-Don
    • International Commerce and Information Review
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    • v.10 no.2
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    • pp.45-62
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    • 2008
  • As the Internet settles down as a general means, every year the domestic e-commerce transaction using the internet rapidly increases in its scale, and the conflicts occurred from the e-commerce largely grow as well. However, it is true that the clear settlement means to work out such conflicts is not established yet. Considering the feature of e-commerce, it would be better to resolve them by ADR rather than by lawsuits in the court, and in addition to it, the ODR system having sweetness as its advantage will be the optimized model. But to make the ODR settled down, there are many assignments to be improved in many aspects afterwards. In case of our country also, since the ODR system is still its early developing step, it is not activized yet due to its weak technical, lawful environments. Thus, currently, it is unavoidable to operate the dispute mediation system, carrying out a system by the existing Off-line together, and thereby, as we replace the parts worked out by the Off-line with by the On-line, we must try to develop it into a quick, cheap, and reliable dispute settlement system.

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