• Title/Summary/Keyword: 위법

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Generation of Roughness Using the Random Midpoint Displacement Method and Its Application to Quantification of Joint Roughness (랜덤중점변위법에 의한 거칠기의 생성 및 활용에 관한 연구)

  • Seo, Hyeon-Kyo;Um, Jeong-Gi
    • Tunnel and Underground Space
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    • v.22 no.3
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    • pp.196-204
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    • 2012
  • Quantification of roughness plays an important role in modeling strength deformability and fluid flow behaviors of rock joints. A procedure was suggested to simulate joint roughness, and characteristics of the roughness was investigated in this study. Stationary fractional Brownian profiles with known input values of the fractal parameter and other profile properties were generated based on random midpoint displacement method. Also, a procedure to simulate three dimensional roughness surface was suggested using the random midpoint displacement method. Selected statistical roughness parameters were calculated for the generated self-affine profiles to investigate the attribute of roughness. Obtained results show that statistical parameters applied in this study were able to consider correlation structure and amplitude of the profiles. However, effect of data density should be tackled to use statistical parameters for roughness quantification.

Verification of the Seismic Performance Evaluation Methods for Enclosure Dam (기존 방조제의 내진성능평가 방법 검증)

  • Kim, Kwangjoon;Kim, Hyunguk;Kim, Sung-Ryul;Lee, Jinsun
    • Journal of the Korean Geotechnical Society
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    • v.38 no.5
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    • pp.19-33
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    • 2022
  • Newmark's sliding block analysis is the most commonly used method for predicting earthquake-induced permanent displacement of embankment slopes. Additionally, it yields the amount of slip circle sliding using the limit equilibrium theory. Thus, permanent displacement does not occur until the seismic load exceeds the yield acceleration, which induces sliding of the slip circle. The evolution of Newmark's sliding block analysis has been made by introducing the numerical seismic response analysis results since it was introduced. This study compares seismic performance evaluation results for the example enclosure dam section with the analysis methods. As a result, earthquake-induced permanent displacement using Newmark's sliding block analysis did not occur for the enclosure dam, indicating a high safety factor. However, nonlinear response history analysis gave reasonable results.

A study on the regulation for unfairness and unfair trade practices in franchise business (프랜차이즈 거래의 불공정성에 대한 규제와 불공정거래행위에 관한 연구 - 공정거래위원회 심결례 분석을 중심으로 -)

  • Gwon, Yong-Deok;U, Jong-Pil;Lee, Sang-Yun
    • The Korean Journal of Franchise Management
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    • v.2 no.1
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    • pp.119-133
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    • 2011
  • The objective of this study is to establish the basic concepts for franchise agreements in consideration of both theoretical and practical conditions, to set the parameters for the discussion regarding the practical business matters pertaining to franchise agreements, and to analyze the criteria for determining the illegality of unfair trade practices based on research into actual practices in franchise transactions and on case studies of the implementation of laws by the Fair Trade Commission. The study aims to thereby contribute to the stabilization of laws in franchise transactions, benefiting all parties including franchise-related institutions, participants in franchise transactions, and related consumers. In conclusion, even in cases where regulatory exceptions are applied within the Fair Franchise Transactions Act when determining the illegality of franchised businesses, it is impossible to eliminate illegality unless all necessary and sufficient conditions have been included, and even if the procedure for evading illegality has been undertaken, illegality may not be eliminated unless the contents thereof are legitimate.