Earticle

❚연구의 필요성 및 목적 인간의 삶의 근원이 되는 자연 속에 규칙과 불규칙한 다양한 현상들로 이루어져 있으며, 자연으로 부터 예술의 근원이 되는 ‘프랙탈(Fractal)’의 조형원리를 발견할 수 있다. 현대사회는 과학과 예술의 융합으로 새로운 트렌드의 헤어디자인에 대한 재조명이 필요하다. 김지용(2013)은 비달사순의 헤어커 트 연구에서 프랙탈 조형원리에 대한 제시는 하고 있지만, 자연 조형의 원리인 프랙탈을 활용한 헤어 커트 디자인의 테크닉에 대한 연구는 미비한 상황이다. 따라서, 본 연구의 목적은 프랙탈 조형과 미용예술분야의 헤어커트 디자인의 연관성을 알아보고 프랙탈 헤어커트 디자인을 연구하기 위해 여성 헤어디자이너를 대상으로 트랜드 헤어디자인 선호도 를 실시하고자 한다. 또한, 프랙탈 조형에 기초하여 프랙탈 테크닉 연구를 활용하여 자연스러우면서 생동감이 있는 프랙탈 헤어커트 디자인 연구를 통해 향후, 업무능력을 향상과 고객 만족도를 높이며 헤어커트 교육에 기여하고자 한다. ❚연구방법 헤어디자인 선호도 조사 및 프랙탈 헤어커트 디자인 연구를 실시하고자 한다. 첫째, 부산, 울산, 경남지역의 20세 이상 여성 헤어디자이너를 대상으로 2015년 7월 19일부터 7월 31일까지 설문조사를 실시하였다. 설문지 구성은 인구 통계학적 특성과 헤어스타일 행동과 관심도 및 중요도, 헤어디자인 선호도와 프랙탈 두상영역에 따른 선호도 그리고 경력별 헤어커트 기초 테크 닉으로 구성하였다. 둘째, 프랙탈 조형원리의 Self-Similarity, Irregularity, Scaling, Overlapping, Distortion을 응용하여 프랙탈 Basic 커트 및 프랙탈 Trend & Creative 커트 디자인 연구를 위그 19작품과 모델 5작품으로 총 24작품을 제작하고자 한다. ❚헤어디자인 선호도에 따른 프랙탈 헤어커트 디자인 연구 첫째, 프랙탈 조형원리를 활용한 건축, 회화, 가구, 패션디자인의 분석을 통해 헤어 커트 디자인에 프랙탈 조형원리의 적용 가능성을 알 수 있었다. 둘째, 헤어디자이너는 사람들과 비슷한 헤어스타일을 하려고 신경 쓰지 않았으며, 연령별 헤어디자 인 선호도에서 연령이 낮을수록 원랭스 커트를 선호하였으며, 연령이 높을수록 레이어를 선호하였다. 프랙탈 조형원리를 응용한 두상영역에 따른 선호도는 연령이 낮을수록프랙탈 ‘Self-Similarity’의 디자 인을 선호하고 연령이 높을수록 프랙탈 ‘Irregularity’와 ‘Scaling’ 및 ‘Distortion’의 디자인을 선호하였 다. 헤어디자이너의 경력별 헤어커트 테크닉에 대한 선호도는 경력이 높을수록 선호하는 테크닉과 볼 륨 존 그리고 움직임 존에서 프랙탈 Zone에 의한 테크닉과 비슷한 결과가 나타났다. 셋째, 프랙탈 헤어커트 디자인 연구는 프랙탈 조형원리(Self-Similarity, Irregularity, Scaling, Overlapping, Distortion)와 프랙탈 Zone(I, S, O-Zone)에 의하여 헤어커트 테크닉(형태, 베이스, 헤어라 인, 텍스춰)을 사용하고, O-Zone에 위치한 헤어 가마를 태극 S곡선이나 역 S곡선에 의해 자연스럽고 손질하기 편리한 헤어스타일을 표현하였다. ❚결론 및 제언 첫째, 프랙탈 조형원리를 활용한 디자인에 대한 분석의 결과는 건축, 패션, 회화, 가구디자인 등의 분석에서 새로운 관점으로 쉽고 간편하게 적용 가능성을 인식하였다. 둘째, 여성 헤어디자이너들은 차별화된 스타일을 선호하였으며, 연령이 낮을수록 프랙탈 ‘Self- Similarity’의 원랭스 커트 테크닉을 활용한 디자인을 선호하였다. 그리고 연령이 높을수록 프랙탈 ‘Irregularity’와 ‘Scaling’ 및 ‘Distortion’의 레이어 커트 테크닉을 활용한 디자인을 선호하였다. 셋째, 프랙탈 조형원리를 활용한 헤어커트 디자인은 자연스러우면서 생동감이 있는 디자인을 표현 할 수 있었다. 본 연구의 제한점으로는 자연의 조형원리에 기초한 프랙탈을 활용하여 헤어커트 디자인의 테크닉 을 개발하기 위하여 상호간에 적용 가능성을 살펴보고, 이러한 과정을 통해 프랙탈 헤어커트 디자인 의 연구가 앞으로 헤어커트 디자인의 분야에 활용되어 새로운 헤어디자인의 개발 및 미용 산업 발전 에 기여할 수 있기를 기대한다.

Irregularities in the structure are crucial factors in screening structural vulnerability under extreme loadings. Numerical analyses were carried out considering wind and seismic loadings for four structures with discrete irregularity: continuous and discontinuous beams with varied story levels, and L-shaped irregular buildings. Structural responses such as maximum displacements, bending moments, axial forces, torsions, and story drifts are evaluated as per the criteria and limits defined by ACI 318. The outcomes indicate that the frame system with beam discontinuity on the upper half of the height exhibits the best structural performance. The results also indicate that the asymmetrical design of the L-shaped model makes it more susceptible to damage when subjected to strong lateral loading conditions.

Purpose: The aim of this study was to identify the relationship between awareness of nutrition labeling and menstrual cycle irregularity in women from a nationally representative sample of the Korean population. Methods: A cross-sectional analysis was performed using hierarchical multi-variable logistic regression analysis models. A total of 4,324 women aged 19~54 years from the 2010~2012 Korean National Health and Nutrition Examination Survey participated in the study. The participants were classified into three groups based on self-report responses to a questionnaire about their awareness of nutrition labels: Reading, Not-Reading, and Not-Knowing Groups. Results: The Reading, Not-Reading, and Not-Knowing Groups comprised 46.4%, 44.9%, and 8.7% of the participants, respectively, and 53.6% of the participants had never used nutrition labels. In the Not-Knowing Group, irregular menstrual cycles for more than 3 months were significantly more common than women with irregular menstrual cycles for up to 3 months and women with regular menstrual cycles. Women in the Not-Knowing Group were more likely to exhibit menstrual cycle irregularity (adjusted odds ratio: 1.63, 95% confidence interval: 1.10~2.41) compared to women in the Reading Group after adjusting for age, body mass index, smoking status, alcohol intake, exercise regularity, stress, depression, suicidal ideation, metabolic syndrome, age at menarche, parity, and use of oral contraceptives. Conclusion: No awareness of nutrition labeling appears to be associated with a higher prevalence of menstrual cycle irregularity in a nationally representative group of Korean women.

The characteristic of the inequality and irregularity which of the rhythmic cycle in korean traditional music is as important as another characteristics, which is scale 음계, mode 선법, microtonal shading 미분음, ornamental technic 시김새, flexibilie tone 유동성음, vibrato 농현, heterophony 이음성, mehrstimmigkeit 다음성, idom 토리. The very common characteristic of them might be a instability, that is. The melodies are so mobile, the relations between melodies have heterogeneity. Besides, it is emphasized the impromptu of the musical performance transmission. As through all of those characteristics, an instability is guaranteed. It would be a greatful work to study about an instability korean music called an dissymmetry and how it is expressed in rhythmic cycle of korean music. Fortunately they have been continued efforts that find the characteristics and organizations through its researches and discussions in academic world of korean music. We observed the inequality and irregularity in various musics like Chongak 정악, folk music 민속악, and they had been worked with the existing theory as a reference data. On this study, we handled a lot of works, those are, "Has it a structure of mulitimetric rhythm 혼합박자 in a piece of music", Is there a definite musical tempo and a cycle", "Is the music inequable", and "Is there an orderly rhythmic system or not." Now, we conclude those works concerned with 22 pieces of the Korean Traditional Music as follow: At first, all pieces have inequable mixed meter in the subject of the Chongak, Sujechon 수제천, Heemun 희문, Haeryong 해령 don't have any regular rhythmic cycle and tempo, or have weakly regular rhythmic cycle. However, Sangryongsan 상령산, Seryongsan 세령산, Gagok(lyric songs) 가곡, Gasa (narrative songs) 가사, Shijo(sung short poems) 시조 have constant tempos and rhythmic cycles but inequable mixed meter. In the following, 14 pieces of Korean folk music consist of inequbable mulitimetric rhythm with 2beat 2소 박 and 3beat 3소박, and 13pieces of them have regular tempos except Sushimga 수심가. Sushimga, Yokkeumsushimga 엮음수심가, Chulinga(a peice of 12 Chapga) 출인가 and Gombotaryong(a peice of hwimorichapga) have no regular cycles. So most of the Korean folk music have regular rhythmic cycles but each two pieces of Sushimga, Chapga. Chulinga exceptionally has equable(symetrical) meter for 6beats(3+3) and Terballim 터벌림(a shamanistic ritual of Kyonggi province) especially has combined quintuple meter structures that make up with ten dotted quarter beats.

This article examines the relationship between formal irregularity and spatial experience in Steven Holl’s architecture through Jacques Lacan’s theory of visuality, extending previous phenomenological approaches from a Lacanian perspective. While previous studies, largely informed by Merleau-Ponty’s philosophy, have interpreted Holl’s architecture in terms of bodily experience and the interplay of light, materiality, and temporality, this study focuses on the effects of Holl’s irregular architectural forms on the subject’s experience of space. Drawing on Lacan’s concept of the gaze and topological models such as the Möbius strip and the torus, it examines how architectural space destabilizes and inverts the boundaries between interior and exterior and between subject and object. Through analyses of the curved walls of the Kiasma Museum, the fissures of light in the Chapel of St. Ignatius, and the irregular tunnels of Simmons Hall, the study demonstrates that Holl’s irregularity functions not merely as a formal or aesthetic experiment, but as a spatial device that disrupts the subject’s perception and position and transforms spatial experience. Holl’s architectural irregularity can be understood as an attempt to articulate the relationship between the user’s spatial experience and the psychoanalytical concepts of lack and infinity.

Carrying out accurate and reliable track maintenance tasks is very important to improve the running safety of a railway vehicle and the ride quality for the passenger. For this purpose, appropriate track management standards need to be set by analyzing the field test results for setting reliable management criteria. However, in practice, it is difficult to quantitatively examine the various track fault conditions. Therefore, investigation of the influence of various track characteristics on the running safety and ride quality was performed through numerical analysis method. The influence of the track irregularities on the wheel lateral forces, derailment coefficients, and accelerations on the bogie and car body was investigated through numerical analysis.

In the previous study, the seismic performance was evaluated by performing the shake table test with or without of the special seismic load as a variable on the piloti RC building with horizontal irregularity. However, it is necessary to evaluate the various factors affecting seismic performance of the piloti RC building through additional analysis studies. For this, it is necessary to use appropriate analysis methods and to verify the applicability of the using seismic response analysis. In this study, we are evaluated to verify the analysis methods applied in this study by modeling the shaking table specimens of the previous study, performing nonlinear seismic response analysis to the input earthquake, and comparing the analysis results with the test results. The analysis results showed generally similar to the test results, and the analysis modeling applied in this study was judged to be relatively valid for simulating the dynamic behavior of the specimen. In addition, it was confirmed that the torsional behavior was properly controlled even if only the special seismic load was applied

본 연구는 프랙탈(Fractal) 조형 원리를 응용하여 헤어 디자인 커트 원리와의 연관성이 발견되어 연구하였다. 예를 들어 프랙탈의 기본 조건이 서로 연관성을 갖는 다양한 변화 를 거쳐 자기 유사성, 무작위성 그리고 불규칙적인 특성이 나타나는데, 헤어 디자인 커트 조형과도 매우 밀접한 유사성이 발견되어 본 연구를 하였으며, 헤어 디자인 커트를 프랙 탈 관점에서 재해석함으로서 보다 21세기 미래 지향적인 헤어 디자인 커트 연구의 초석을 마련하는 것이 본 연구의 목적이다. 프랙탈 기하학 조형 원리의 특징들 중 자기 유사성 (Self-similarity), 불규칙성(Irregularity), 무작위성(Randomness) 선정하여 프랙탈 기하학 과 관련된 자료 중 논문, 단행본, 기사, 인터넷 매체 등을 활용하여 정보를 수집하 여 고찰한다. 프랙탈 조형 원리의 자기 유사성은 동일한 커트라인의 반복을 통하여 액티 베이티드(Activate) 한 무게감이 표현됨을 알 수 있었고, 불규칙성은 모발의 질감처리를 통하여 율동감과 불규칙적인 언액티베이티드(Unactivate) 함을 알 수 있었다. 본 연구를 통하여 다양한 미래 지향적 헤어 커트 디자인 을 위한 연구가 활발하게 이루어지기를 기대해본다.

This study examined the correlation between applied fractal design principle and hair design cut. For example, the fundamental conditions of fractal go through various changes which are correlated to each other and show self-similarity, randomness and irregularity. And since these have close connection with hair design cut, so this study was conducted to lay the cornerstone of future-oriented hair design cut research in 21st century by reinterpreting hair design cut from the viewpoint of fractal. Among those characteristics of fractal geometry design principles, we select self-similarity, irregularity and randomness and we collect and consider the data about fractal geometry from articles, books, thesis, internet media etc. We found out that self-similarity of fractal design principle expressed activated weight area by repeating same cut line, and irregularity showed a rhythmical sense and irregularly unactivated through hair texture treatment. We expect to see more active and various future-oriented research for hair cut design in the future.

The depiction of the irregularity in nature is crucial for the realistic representation of the virtual world. For example, real pavement blocks are not always paved evenly, but partially sink over time. Many games or virtual reality systems however represent the pavement too neatly with perfectly flattened surfaces and clean texture images. In this paper, we suggest a method for representing realistic pavement blocks by adding irregularity to blocks. We create uneven surfaces by placing pavement blocks on the randomly generated terrain. We also represent worn surfaces by adding crack patterns to the original texture images along the user-controlled spline curves with Poisson equations. Our method can generate diverse new crack patterns from images of sample patterns and it would be useful to generate random patterns of other linearly-shaped textures as well. Our method is applicable to real-time rendering systems such as games and virtual reality systems since the cracking effects are incorporated into the texture images.

한국서예의 독창성에 대한 연구는 최근 여러 서예이론가들에 의해 논의되어져 왔다. 그러나 그것이 좀 더 설득력을 확보하기 위해서는 인접학문과의 연결고리를 찾는 것이 무엇보다도 중요하다는 결론에 이르게 되었다. 이에 본 논문에서는 한국미술의 독창성에 대해 뚜렷한 연구 성과를 남겼던 에카르트, 야나기, 고유섭의 이론에 주목하면서, 이것을 한국서예에 나타난 특징 과 열결 지어보려는 시도를 해 보았다. 본 연구를 통해 한국 서예의 독창성과 건축, 조각, 도자기 등 한국 미술의 독창성이 별개의 것이 아님이 발견되었다.

The originality of Korean calligraphy was recently much discussed by several theorists of calligraphy. However, it can be concluded that in order to make such discussion more persuasive, it is very important to find a link with other neighboring academic fields. In this study, an attempt is made to connect the characteristics of Korean calligraphy with the theories presented by Andre Eckardt(1884-1971), Yanagi Muneyoshi(1889-1961), and Go Yuseop(1904-1944), who contributed much to the understanding of the originality of Korean art. The result shows that the originality of Korean calligraphy is not different from that of Korean art such as architecture, sculpture, and porcelain, etc.

When the cytological smear method is used to check cervical lesions, the irregularity of the cells contour is essential for smear image interpretation and has the vital significance for research on computer aided diagnosis of cervical lesions. Aimed at measuring the regularity of cells outlines, based on the characteristic that the normal cell smears is generally circular, oval, convex polygon, we put forward a cell contour irregularity feature extraction and measurement method based on linear geometric heat flow curve evolution, in which the curve of cells outline is dealt with linear geometric heat flow curve evolution to totally convex (i.e. no curvature zero crossing) and compared with the original contour to extract indexes which can describe irregularity features of cell contour. Experimental results show that the method proposed in this paper can better describe the irregularity of cell contour and distinguish cells of different lesions.

Menstrual cycle irregularity reflects the reproductive health of women of childbearing age, but studies are scant on women in communities. In this study, we identified factors associated with menstrual cycle irregularity among 884 community women of childbearing age (19–40 years) and confirmed the relationship between menstrual cycle irregularity and depressive symptoms. Data were collected through online or mobile platforms. We noted that 25% of participants had menstrual cycle irregularity. Multivariable ordinal logistic regression analysis revealed that age, irregular eating, and depressive symptoms were associated with menstrual cycle irregularity. After adjusting for confounding variables, participants with depressive symptoms were at a slightly higher risk of menstrual cycle irregularity (odds ratio = 1.078, confidence interval = 1.021–1.139). Additional support be provided for community-living women of childbearing age with depressive symptoms, to improve their reproductive health

Since the very beginning of the industrial revolution the work-force (employees) is forced to perform repeated laborious tasks round the clock. To make things worse, most of the tasks are non-intellectual. With the passage of time while the employee is gaining experience and becoming more productive, he is losing human characteristics. And gradually transforming into a circus animal. Being inherently irregular and unpredictable employee (humans) require a system that can not only curb their irregularities but also, reminds them of their expected location via vocal announcements in real time. To meet these requirements, we present an efficient system that tracks the where about of employees in indoor environment. And keeps a compact tempo-spatial track records of each employee. It helps them to avoid irregularities in real time which otherwise may lead to accumulation of a considerable debt at the end of the month. The proposed system is both employee and organization friendly. The employee benefits because he/she is not deprived of human comfort level. And the organization benefits because the efficiency of employee is increase in real time.

본 연구는 동일한 형식의 분기기임에도 열차 운행조건이 상이한 5개 분기기를 대상으로, 다년간 궤도선형검측기(KRAB)를 이용해 측정된 분기기 궤도틀림 데이터를 분석하였다. 분석 대상은 60kg 레일과 탄성 목침목을 적용하고 #15 망간 크로싱을 사용하는 분기기로 선정하여, 검측 데이터의 신뢰성을 확보하였다. 분기기별 운행 조건은 통과 열차 종류, 1일 통과 횟수, 평균 통과 속도에 따라 분류하였다. 궤도틀림 분석결과, 각 그룹 간 틀림 수준과 발생 빈도에는 다소 차이가 있었으나, 공통적으로 리드부 직후와 크로싱 후단에서 궤도틀림이 집중적으로 발생하였다. 또한 운행 빈도가 높은 본선 구간에서는 정기적인 유지보수가 이루어지는 반면, 운행 빈도가 낮은 분기기에서는 전 구간에 걸쳐 상대적으로 높은 수준의 궤도틀림이 지속되는 것으로 분석되었다. 본 연구에서는 궤도틀림은 주로 크로싱 후단, 리드부 직후에서 발생하는 것을 확인하였고, 궤도틀림이 주로 발생한 지점을 취약구간으로 선정하여 해당 지점을 선제적으로 점검하고 유지보수하는 전략 수립이 필요한 것으로 분석되었다. 비교적 운행 빈도가 적은 분기기라도 주기적인 검측을 통해 발생된 궤도틀림을 적절한 시기에 보수하는 것이 바람직할 것으로 판단되었다.

This study analyzed turnout track irregularity data collected over multiple years using the track geometry measuring system (KRAB) for five turnouts with identical structural configurations but different train operating conditions. The selected turnouts were equipped with 60 kg rails, elastic wooden sleepers, and No. 15 manganese crossings to ensure data reliability. The operating conditions of each turnout were classified by train type, daily traffic volume, and average operating speed. The analysis revealed that although the level and frequency of track irregularities varied among groups, all turnouts exhibited concentrated irregularities immediately after the lead section and at the rear of the crossing. In particular, mainline turnouts with high traffic volumes were regularly maintained, while low-frequency turnouts showed persistently higher levels of track irregularities throughout the entire section. The findings confirmed that track irregularities predominantly occur near the crossing rear and post-lead sections, indicating that these areas represent structural weak zones requiring prioritized inspection and maintenance. Even for turnouts with relatively low operating frequency, periodic measurements and timely maintenance are recommended to prevent the accumulation and progression of permanent deformations.

본 연구에서는 공용 자갈궤도의 열화와 콘크리트궤도로의 부분 개량으로 인해 형성된 궤도강성 천이부를 대상으로 궤도지지강성과 궤도틀림의 상관관계를 분석하였다. 자갈궤도와 콘크리트궤도가 연속 배치된 교량-토공 접속부 약 60m 구간에서 궤도선형검측과 모달시험을 통해 궤도틀림과 궤도 고유진동수를 계측하고, 수치해석을 통해 레일지 지점 스프링강성과의 관계를 분석하였다. 분석결과 자갈궤도 접속부의 궤도 고유진동수는 정상 자갈궤도 대비 약 약 88.75% 감소하여, 약 11% 수준으로 저하된 것으로 분석되었다. 반면, 콘크리트궤도 접속부는 약 17.53% 증가하였으며, 콘크리트궤도에서 자갈궤도로 전환되는 접속부에서 최대 16mm의 고저틀림과 13mm의 수평틀림이 발생하여 관리 기준을 초과하는 것으로 분석되었다. 레일지지점 스프링강성, 궤도 고유진동수, 레일 수직변위 및 궤도틀림을 분석한 결과, 궤도지지강성의 저하 또는 과도한 증가는 접속부 국부 손상과 궤도틀림 확대의 주요 원인으로 확인되었으며, 제시된 모달시험-궤도선형검측 기반 평가는 궤도강성 천이부의 상태 진단과 유지관리 계획 수립에 활용 가능할 것으로 판단된다.

In this study, the correlation between track support stiffness and track irregularity was investigated at stiffness transition zones formed by deterioration of in-service ballasted tracks and partial conversion to concrete tracks. A 60m bridge-embankment transition section with consecutive ballasted and concrete tracks was tested using a track geometry measurement system and modal testing, and numerical analysis was used to relate rail support spring stiffness to the natural frequency of the track. The natural frequency at the ballasted transition decreased to 88.75% of that of the normal ballasted track, while that at the concrete transition increased by 17.53%. At the transition from concrete track to ballasted track, a maximum longitudinal vertical irregularity of 16mm and an alignment irregularity of 13mm were observed, exceeding the maintenance limits. By jointly analyzing rail support point spring stiffness, track natural frequency, vertical rail displacement, and track irregularity, it was confirmed that reduced or excessive track support stiffness at transition zones is a major cause of local damage and amplified irregularities. The proposed combined modal-geometry-based method is therefore considered applicable to condition assessment and maintenance planning for stiffness transition zones in railway tracks.

The goal of this paper is to argue that adequate and insightful analyses are indeed possible in OT for a unified account of phonological behaviors of some irregular stems. I bring to light some behaviors of /s/-irregular and /h/-irregular stems illuminating a generalization that they share a certain property in their input forms. I propose that both types of irregular stems have a mora associated to their stem-final /s/ and /h/ in the first place, which contrasts with the /s/-regular stems that do not have such an association. The prediction is therefore made that two seemingly different types of stems with the same input specification will show phonologically the same behavior in some relevant environments. This prediction is dramatically confirmed by the fact that the stem-final /s/ and /h/ in question are deleted when they are placed before a vowel-initial suffix. The analysis carries over to some additional cases where the stems are followed by consonant-initial suffixes and where the stem-final /h/ constitutes a part of consonant cluster in the input. In all cases, I show that the present system I propose captures phonological generalizations in a way that earlier approaches to /s/- and /h/-irregular stems could not. All the constraints to be employed in the analysis are independently-motivated in the literature. And there is little doubt that those constraints employed in this article are required anyway in the grammar of any other language.

본 연구는 도시철도 선로를 인접하여 시공되는 대형굴착공사에 따른 기존 지하철 선로구조물의 구조적 안정성 을 검토하고자 수치해석을 수행하였다. 수치해석을 바탕으로 단계별 시공과정에서 발생되는 궤도틀림의 영향을 해석 적으로 도출하였으며 관련 기준과의 비교를 통해 궤도변형측면에서의 안정성을 검토하였다. 분석결과, 줄틀림과 면틀 림과 같이 일정거리에서의 상대변위차를 바탕으로 평가되는 궤도틀림 항목의 경우 인접굴착공사 시종점부와 같이 기 존 구조물의 변형이 시작되는 위치에서 가장 명확하게 발생되었다. 반면 궤도의 전반적인 연직 및 수평변위는 공사구 간의 중심에서 최대변형이 발생되었다. 인접굴착공사에 따른 기존 구조물의 변형측면의 취약위치는 공사구간의 중심 과 같이 구조물의 변형이 크게 발생되는 위치뿐만 아니라 궤도틀림 측면에서는 공사 시종점 구간이 취약위치가 될 수 있음을 해석적으로 입증하였다.

In this study, finite element analysis was performed to evaluate the track irregularity of the existing track system on urban transit according to the large-scale excavation work that is constructed adjacent to the serviced line. Based on the numerical analysis, the effect of track irregularity generated during the step-by-step construction process was analytically derived, and the stability in terms of track deformation was evaluated through comparison with related standards. As the results, in the case of track irregularity items evaluated based on the relative displacement difference at a certain distance, such as alignment and vertical irregularity, it occurred most clearly at the location where deformation of the existing structure begins, such as the end point of adjacent excavation work. On the other hand, the overall vertical and horizontal displacement of the track was the largest deformation at the center of the construction section. The vulnerable position of the deformed side of the existing structure due to adjacent excavation is analytically proven that the both of the end point section and the center of the construction can be a vulnerable position in terms of track irregularity.

본 연구는 도시철도 및 고속철도 선로를 근접하여 통과하는 신설 터널 시공현황 및 지반조건을 모사하고 레일, 침목 및 궤도의 탄성스프링으로 구성되는 궤도모델을 적용한 수치모델을 이용하여 3차원 정밀수치해석을 수행한 연 구이다. 철도시설물 인접굴착공사에 따른 기존 선로시설물의 궤도변형 안정성 검토를 수행한 결과, 대상 선로의 궤도 틀림은 국내 궤도틀림 평가기준에 제시된 일반철도 및 고속철도의 평가기준(허용값)을 모두 만족하는 것으로 나타났다. 궤도모델이 적용된 수치해석을 바탕으로 굴착 공사에 따른 운행선 선로의 변형(궤도틀림) 예측 결과와 실제 현장에서 발생되는 궤도변형의 수준을 가급적 근사한 수준으로 모사할 수 있을 것으로 분석되었다.

The three-dimensional precision numerical analysis was performed using the finite element model applied with the railway track model consisting of rails, sleepers, and track elastic springs(ballast, rail pad). As a result of analyzing the track deformation level of the existing tracks due to the excavation work adjacent to the railway facilities, it was found that the track irregularity evaluation criteria (allowed values) of both conventional and high-speed railways lines were satisfied. Based on the numerical analysis using the track model, it was analyzed that the results of the prediction of the track irregularity due to the excavation work and the level of the track deformation occurring at the actual site could be approximated as closely as possible.