• Title/Summary/Keyword: traditional settlement

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The use of neural networks for the prediction of the settlement of pad footings on cohesionless soils based on standard penetration test

  • Erzin, Yusuf;Gul, T. Oktay
    • Geomechanics and Engineering
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    • v.5 no.6
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    • pp.541-564
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    • 2013
  • In this study, artificial neural networks (ANNs) were used to predict the settlement of pad footings on cohesionless soils based on standard penetration test. To achieve this, a computer programme was developed to calculate the settlement of pad footings from five traditional methods. The footing geometry (length and width), the footing embedment depth, $D_f$, the bulk unit weight, ${\gamma}$, of the cohesionless soil, the footing applied pressure, Q, and corrected standard penetration test, $N_{cor}$, varied during the settlement analyses and the settlement value of each footing was calculated for each method. Then, an ANN model was developed for each traditional method to predict the settlement by using the results of the analyses. The settlement values predicted from the ANN model were compared with the settlement values calculated from the traditional method for each method. The predicted values were found to be quite close to the calculated values. It has been demonstrated that the ANN models developed can be used as an accurate and quick tool at the preliminary designing stage of pad footings on cohesionless soils without a need to perform any manual work such as using tables or charts. Sensitivity analyses were also performed to examine the relative importance of the factors affecting settlement prediction. According to the analyses, for each traditional method, $N_{cor}$ is found to be the most important parameter while ${\gamma}$ is found to be the least important parameter.

A Study on the Formation of Traditional Settlement In NaJu Castle Areas (나주 읍성안 전통주거지의 형성에 관한 연구)

  • Kim, Byoung-Jin;Shon, Seung-Kwang
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2005.11a
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    • pp.205-209
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    • 2005
  • A traditional settlement, in a long history establishment, is appeared to be configured of the people and their life in the areas. This is, a positive aspects, compared to most of the city in these day which is monotonous aspects. The purpose of this research deals what is the formation process and spatial character in urban settlement of Naju city, and how to applicate in a modern city context. For the research goals, it analyse an old Naju Castle area, transformation of the land use through the cadastral survey, and spatial character through step by step in chronical approach. The process of change can be seen in the devide pattern in a lot, formation and extension of a private road, and formation and change of the road; This shows how to changes traditional settlement in a old urban areas of Naju city. A now road system in old area, as a conflict, push the change of the spatial organization, and the balance of the identity of a traditional settlement and a new change as a convenient needs, it is a key point to get ideal settlement.

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Characteristics of Bearing Capacity and Settlement According to the Difference of Loading Plate Sizes (재하판의 크기에 따른 지지력 및 침하특성)

  • 정형식;김도열
    • Journal of the Korean Geotechnical Society
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    • v.18 no.4
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    • pp.179-188
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    • 2002
  • The scale effect should be considered to determine the bearing capacity and settlement of footings from plate-load test, because of the size difference between a footing and a loading plate. To analyze characteristics of bearing capacity and settlement according to the difference of loading plate sizes, model tests were performed with four different sizes of square plate, which are B=10, 15, 20, and 25cm respectively, on five different kinds of subsoils. Test results showed that the ultimate bearing capacity of a footing on the sand did not increase proportional to the traditional formula and the bearing capacity on the clay also increased a little with increasing the size of loading plate. The settlement of test plate on the sand did not increase as the traditional formula of Terzaghi and Peck (1967), and the settlement on the clay also did not increase proportional to the traditional formula.

Meta Analysis on the Trade Settlement Study and Research Outlook (무역결제 분야 연구의 메타분석과 전망)

  • Hee-Jung Yeo
    • Korea Trade Review
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    • v.46 no.2
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    • pp.371-387
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    • 2021
  • This paper analyzed 110 papers related to the field of trade settlement published in the Korea Trade Review for 40 years from 1980 to 2019. This study tried to provide an insight on research topics and to suggest future research directions. The papers were analyzed according to the detailed topics of trade settlement. Research trends were identified every ten years by investigating the most frequently used titles and keywords. The analysis found that the direction of the research changed in line with the changes in trade settlement practices. Future research lies in the field of electronicization of traditional settlement methods, search for alternative settlement methods, individual international microtransaction and trade fraud.

A Study for the Development of Pile Design Method Considering Settlement and Compression (침하량과 압축량을 고려한 말뚝의 설계법 개발을 위한 연구)

  • Lim, Jong-Seok;Ha, Hyuk;Jung, Sang-Kyun
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.1287-1294
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    • 2006
  • A pile is compressed with settlements when loading and bearing capacity is altered along relative displacement of pile/soil on settlement and compression. Settlements of pile displaying limit skin friction is different from displaying tip resistance. Therefore, it is an error in traditional method that bearing capacity of pile is estimated from the sum of limit skin fraction and tip resistance. Accordingly, development of design method considering behavior of load-settlement is needed. In this study, we would like to establish the base for development of design method considering bearing capacity altering along displacement on settlement and compression. For this, we established system and substance of design method. And in order to establish relationship of load-settlement of pile on the type of soil, we analyzed and arranged existing database and pile loading test. On design method, settlement is assumed gradually on each capacity level being assumed gradually. Bearing capacity developing on the pile is obtained on each settlement level. Until the obtained bearing capacity will be equal to assumed capacity, this process is continued with increasing settlement. Load-settlement curve for soil classification is sketched in the process computing settlement on assumed capacity. This design method will be materialized by computation program.

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Development of Automated Monitoring System for Soft Ground Settlement Based on Hole Senor (홀센서 기반의 연약지반 자동 지반침하 계측시스템 개발)

  • Jeon, Je-Sung;Lee, Keun-Ho;Yoon, Dong-Gu
    • Journal of the Korean Geotechnical Society
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    • v.28 no.6
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    • pp.39-52
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    • 2012
  • Magnetic sensing system and automated monitoring system based on digital hall sensor for ground settlement are developed to change traditional method for monitoring surface settlement and underground settlement by manual type and to overcome technical limits of existing automated settlement monitoring system. It's possible to monitor surface settlement and underground settlement with multi-points at the same time in a single hole with NX size. It was possible to verify technical confidence and stability by several case studies of soft ground improvement project.

A study of interconnection cost settlement for Broadband network (광대역통신망의 상호 정산 기법 연구)

  • Jeong Byung-ho;Yim Hwa-young
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.30 no.5B
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    • pp.324-329
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    • 2005
  • In the traditional telephone services, the settlement method for usage of facilities has been systematically and reasonably arranged based on the cost. Through the advanced technology, the telecommunication services such as the convergence of voice-data, wire-wireless, communication-broadcasting, etc are offering. So, new settlement method in the broadband convergence network (BCN) should be necessary. This paper suggests inter-companies settlement method in the broadband network using interconnection bandwidth and transmission distance factor. By reflecting the facility cost weight on each BCN level, the cost settlement for various services can be easily done. As the settlement model for BCN, the inter-companies interconnection and settlement can be normalized by interconnection bandwidth and transmission distance factors.

The Optimal Locational Environment of the Bronze Age Settlement in Cheonan Baekseok-dong through the Ridge Environment's Perspective - Focusing on the Locational Characteristics of Residential Areas Based on Geographical Analysis and GIS Analysis - (능선환경으로 본 천안 백석동 청동기시대 취락의 최적 입지환경 - 지형분석과 GIS분석을 이용한 주거지 입지 특성에 주목하여 -)

  • Park, Ji Hoon;Lee, Ae Jin
    • Journal of The Geomorphological Association of Korea
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    • v.25 no.4
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    • pp.103-116
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    • 2018
  • The purposes of this research are as follows: First, to reconstruct the optimal locational environment of the Bronze Age settlement in Cheonan Baekseok-dong (hereinafter referred to as the study settlement). Second, to identify the priority ranking of the topographical factors that influenced the Bronze Age people when selecting their the settlement location. For these reasons, the topographical factors of the 200 Bronze Age dwellings (hereinafter referred to as dwellings) confirmed in the survey area were analyzed through the ridge's environmental perspective. The results are asfollows: First, the optimal ridge environment of the Bronze Age settlement is largely a sub-ridge in N-S direction (for example, NNW-SSE, N-S, NNESSW), especially at the top (Crest slope, Crest flat) of the south-facing aspect of the ridge. Second, when the Bronze Age dwellers selected a residential location, they carefully considered topographical factors in the following order: (1) the slope direction of the ridge surface, (2) the micro-landform of the ridge, (3) the ridge scale, (4) the ridge direction, and (5) the surface relief. The results of this study could be used as basic data in related fields such as archaeology, quaternary research, and traditional architecture and so on.

A Study on Perception of Conservation of Settlement Historical Landscape - Focused on the village in Sancheong and Hamyang - (정주형 역사경관 보전에 대한 주민과 방문객의 인식 연구 - 산청 남사마을과 함양 개평마을을 대상으로 -)

  • Jung, Yeon-Seung;Kang, Seok-Jin;Ko, Young-Hoon;Kim, Seok-Cheol
    • Journal of the Korean Institute of Rural Architecture
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    • v.18 no.4
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    • pp.25-32
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    • 2016
  • Historical and cultural heritage provides a clue to reflect on the life of the era. Views of traditional village are the thing which can show us the life style and value of our ancestors and must be conserved as the values and traditional culture. Traditional village that has the historical value and descended to this day by adapting to environmental and social changes with the strong continuity is a part of the value of the residents' life and should be conserved with the physical environment, community and quality of the inhabitants' life. Therefore, this study is to analysis the difference of perception and the cause regarding conservation of the historical landscape and how the landscape influences on the residents and visitors. Based on those things, this study is to ultimately introspect importance of the residents' participation and meaning of the difference of perception about conservation of the historical landscape.

Investigation of the Optimum Mixture of Flowable-Fill Applied Bottom-ash (Bottom-ash를 적용한 고유동충전재의 최적배합검토)

  • 김성수;원종필;김동현;김종필;이용수
    • Proceedings of the Korea Concrete Institute Conference
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    • 2000.10a
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    • pp.369-372
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    • 2000
  • This investigation aims at the optimum mixing of flexible flowable-fill made of Bottom-ash as an industrial waste. Flowable-fill refer to self-compacted, cementitious material used primarily as a backfill in lieu of compacted fill. The two primary advantages of flowable fill over traditional methods are its ease of placement and the elimination of settlement. Therefore, in difficult compaction areas or areas where settlement is a concern, flowable fill should be considered. This study compares Bottom-ash with fine aggregate in physical character. The mixing design indicates a various mixing-rate.

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