• Title/Summary/Keyword: 한국지지

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Comparative Study on the Prediction Method of Bearing Capacity for Single Stone Column (단일 쇄석다짐말뚝의 지지력 예측방법에 대한 비교 연구)

  • Chun, Byung-Sik;Kim, Won-Cheul;Jo, Yang-Woon
    • Journal of the Korean GEO-environmental Society
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    • v.5 no.1
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    • pp.55-64
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    • 2004
  • Stone column is a soil improvement method and can be applicable for loose sand or weak cohesive soil. Since the lack of sand in korea, stone column seems one of the most adaptable approach for poor ground as a soil improvement technique. However, this method was not studied for practical application. In this paper, the most affective design parameters for the bearing capacity of stone column were studied. The parametric study of major design factors for single stone column was carried out under the bulging and general shear failure condition, respectively. Especially, a test result of single stone column by static load was compared with the bearing capacity values of suggested formulas. The analysis result showed that the ultimate bearing capacity by the formula was much less than the measured value by the static load test. Especially, the result of the parametric study under general shear failure condition showed that the bearing capacity has big difference between each suggested formulas with the variation of the major design parameters. Therefore, the result of this study can be appliable for the future stone column project.

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The College Adaptation and Smartphone Addiction in University Enterents: The Mediating effect of Interpersonal Support Relationship (대학신입생의 대학생활 적응과 스마트폰 중독과의 관계 : 대인관계 지지의 매개효과)

  • Lee, Song-heun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.4
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    • pp.149-159
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    • 2019
  • This study was conducted to investigate that the mediating effect of interpersonal support in college students. Data were collected from the college located in G province, Korea from April, 1th to May 2th 2017. Data were analyzed by pearson correlation coefficients, and regression method of Baron & Kenny of SPSS 26.0 program, and Sobel test of Amos 16.0 program. The result were as follows; 1) The mean scores were college adaptation 5.30(.75), smartphone addiction 2.30(.48), interpersonal support 4.53(.75). 2) The college adaptation showed negative correlation with smartphone addiction(r=.328, p<.001) and positive correlation with interpersonal support(r=.490, p<.001) significantly. Interpersonal support showed significant negative correlation with smartphone addiction(r=-034, p=.04). 3) Interpersonal support had partial mediating effect(Z=2.16, p=.03) in the relationship between college adaptation and smartphone addiction. Baron & Kenny's three-step test showed that college adaptation(${\beta}=-.37$, p<.000) and interpersonal support (${\beta}=.30$, p=.15) were significant predictor variables for the smartphone addiction. Based on the results of this study, college program which is reinforce interpersonal support need to be applied and for the successful college adaptation and beneficial use of smartphone.

Study(II) on Development of Charts and Formulae Predicting Allowable Axial Bearing Capacity for Prebored PHC Pile Socketed into Weathered Rock through Sandy Soil Layer - Improvement Measures of Current Design Method by Analyzing Current Design Data for Prebored PHC Piles - (사질토층을 지나 풍화암에 소켓된 매입 PHC말뚝에서 지반의 허용압축지지력 산정도표 및 산정공식 개발에 관한 연구(II) - 설계 사례 분석을 통한 매입 PHC말뚝의 설계 개선 방향 -)

  • Yea, Geu Guwen;Yun, Dae Hee;Yun, Do Kyun;Choi, Yongkyu
    • Journal of the Korean Geotechnical Society
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    • v.35 no.8
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    • pp.31-42
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    • 2019
  • A total of 73 pile design data for prebored PHC piles was analyzed to study the current design method. Based on the design data, a ratio of skin friction to total capacity from the pile design data was about 20~53%. Such low ratio of skin friction to total capacity tends to underestimate skin friction. Considering this tendency, the current design method should be improved. Also, an average design efficiency of PHC pile capacity was 70% and an average design efficiency for bearing capacity of soil or weathered rock was 80%, which shows slightly higher value than the former. This is probably due to the fact that the allowable bearing capacity is estimated to be equal to or slightly higher than the design load. Hence, the allowable bearing capacity should be estimated to be higher than the long-term allowable compressive force of the PHC pile. In the current design method, skin friction is calculated to be about 2.2 times lower than end bearing. The current design method for prebored PHC piles applied foreign design methods without any verification of applicability to the domestic soil or rock condition. Therefore, the current design method for prebored PHC piles should be improved.

A Study on Improvement of Psychological Well-Being of Adolescents (청소년의 심리적 안녕감 향상을 위한 연구)

  • Kim, Kyoung Suk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.1
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    • pp.297-303
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    • 2019
  • This study examines the relationships among ego resilience, social support, and psychological well-being of adolescents. In addition, we verify the mediation effect of social support on the relationship between ego resilience and psychological well-being so as to find ways to improve the psychological well-being of adolescents. For this study, I conducted a survey at middle schools in Seoul and Incheon and collected 289 answered questionnaires. For analyses of the survey results, frequency analysis, reliability analysis, correlation analysis, and hierarchical regression analysis were carried out using SPSS 23.0. The results confirmed significant correlations among ego resilience, social support, and psychological well-being of adolescents. Furthermore, social support was found to have a partial mediation effect on the relationship between ego resilience and psychological well-being of adolescents. For improving the psychological well-being of adolescents based on the results of this study, an in-depth counseling program that can strengthen ego resilience in adolescents should be developed and actively used in the education field. Furthermore, various efforts should be made to improve the social support of adolescents, such as the development of a communication program to help students. Specifically, this program should aim to assist students connect with teachers and seniors by strengthening social support from friends and improving the functions of family to provide social and psychological supports.

A Field Test on Bearing Capacity Characteristics of Materials for Ground Cavity Restoration Based on Plate Bearing Test (평판재하시험을 이용한 공동 복구재료의 지지특성에 관한 현장실험)

  • Park, Jeong-Jun;Shin, Heesoo;Kim, Dongwook;You, Seung-Kyong;Yun, Jung-Mann;Hong, Gigwon
    • Journal of the Korean Geosynthetics Society
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    • v.17 no.4
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    • pp.293-304
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    • 2018
  • This paper described a results of field test based on plate bearing test of the restoration material, which was developed to restore the ground cavity due to sewerage damage. The analysis of bearing capacity characteristics on the restoration materials was performed by experimental results. The results showed that the load bearing capacity in the maximum stress condition of the foundation ground is about 66%-70%, when the expansion mat is embedded at the bottom of 0.1 m and 0.2 m from the ground surface. However, The load bearing capacity of expansion mat according to embedded depth was not large. The load bearing capacity of concrete mats was about 82%-90% compared with that of ground surface, and it showed about 50% of the load bearing capacity compared with the expansion mat. As a result of analysis of allowable bearing capacity according to restoration materials, it was confirmed that the allowable bearing capacity of the expansion mat and the concrete was about 130%-150% and about 160% more than the foundation ground, respectively.

The Effect of Meditation Psychological Counselor's Social Support and Life Satisfaction on Sustainability (명상심리상담사의 사회적 지지 및 삶의 만족이 지속성에 미치는 영향)

  • Choi, JungHyo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.3
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    • pp.297-302
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    • 2021
  • This study examined the effects of social support and life satisfaction on the sustainability of meditation psychological counselors. The subjects were 124 meditation psychological counselors at K city. As an analysis method, frequency, reliability, and correlation analysis were performed using the SPSS 22.0 program, and multiple regression analysis on the causal relationship between variables was conducted. First, information support, a sub-factor of social support, significantly affected sustainability. On the other hand, emotional, material, and evaluation support did not affect sustainability. Second, in the effect of life satisfaction of meditation psychological counselors on sustainability, the overall satisfaction factor, which is a sub-factor of life satisfaction, positively affected sustainability. This means that the higher the information support factor of social support and the overall satisfaction of life satisfaction perceived by the meditation psychological counselor, the higher the sustainability. This study implies that the meditation psychological counselors as human factors will become more important to future society. Quality and role will be more prominent to enhance healthy continuous activities and sustainability. This study provides basic data to improve the sustainability of meditation psychological counselors.

The Effects of Workplace Spirituality and Social Support of Art Psychotherapists on Interpersonal Relationships (예술심리치료사의 일터영성 및 사회적지지가 대인관계에 미치는 영향)

  • Kim, SooHyeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.3
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    • pp.453-459
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    • 2021
  • This study examined the relationship between spirituality, social support, and interpersonal relationships in the workplace of art psychotherapists.The subjects were 114 art psychotherapists in the city of U. Frequency analysis, reliability analysis, correlation analysis, and multiple regression analysis were performed using the SPSS 22.0 program. First, regarding the effects of work spirituality of art psychotherapists on interpersonal relationships, the sub-factors of workplace spirituality (vocational consciousness, inner consciousness, and empathy consciousness) had a positive effect on interpersonal relationships. On the other hand, community consciousness and transcendence consciousness, which are sub-factors of workplace spirituality, do not appear to have a significant effect on interpersonal relationships. Second, regarding the effects of social support of art psychotherapists on interpersonal relations, the sub-factors of social support, such as evaluative support and material support, had a positive effect on interpersonal relationships. On the other hand, emotional support and informational support did not significantly affect interpersonal relationships. This means that higher vocational consciousness, inner consciousness, empathy consciousness, evaluative support, and material support factors of an artistic psychotherapist are conducive to better interpersonal relationships. This study provides basic data for preparing a plan to promote positive interpersonal relations among art psychotherapists.

The Effect of Online Social Relations Service Utilization on Life Satisfaction of Middle-aged and Older Adults : Focusing on the Mediating Effect of Social Support (중·고령자의 온라인 사회관계 서비스 활용도가 삶의 만족도에 미치는 영향 : 사회적 지지의 매개효과를 중심으로)

  • Um, Sa-Rang;Shin, Hye-Ri;Kim, Young-Sun
    • Journal of Digital Convergence
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    • v.19 no.3
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    • pp.1-12
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    • 2021
  • This study aims to verify the mediating effect of social support in the relationship between online social relations service utilization(PC, mobile) and life satisfaction for middle-aged and Older Adults. For this purpose, the '2017 Digital Devide Survey' data collected by the National Information Society Agency was used, and among 2,300 middle-aged and Older Adults aged 55 or older, 1,488 people using the Internet were selected as the final analysis target. Then, using the structural equation, the mediating effect of social support was verified in the between online social relations service utilization and life satisfaction. As a result, it was verified that higher levels of mobile-based social relations service utilization have a positive effect on social support and life satisfaction. Also, it was confirmed that social support has a mediating effect in the relationship between the utilization of mobile-based social relations service and life satisfaction. However, the utilization of PC-based social relations services did not show to affect social support and life satisfaction. Therefore, the results of this study can be used as basic data for practical measures to increase the connection between mobile-based social relationship service education and social support promotion education for middle-aged and Older Adults. In addition, the study is meaningful in that it overcomes the limitations of measuring the use of online social relations services as one, and selects tools that are practically effective by dividing them into mobile and PC.

An Exploratory Study on the Psychological Meaning of Finsta Use: The Role of Online Social Support, Self-Monitoring and Subjective Well-Being (인스타그램 부계정 사용의 심리학적 의미에 관한 탐색적 연구: 온라인 사회적 지지, 자기감시성과 주관적 안녕감을 중심으로)

  • Sujin, Cho;Hyekyung, Park
    • Korean Journal of Culture and Social Issue
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    • v.28 no.4
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    • pp.691-715
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    • 2022
  • In this study, we investigated the relationship between Finsta use and perceived online social support, self-monitoring, and subjective well-being. Furthermore, we investigated whether the number of Instagram accounts mediates the relationship between self-monitoring and perceived online social support. For this reason, To this end, we conducted an online survey of 396 adults in their 20s. Results indicated that the number of Instagram accounts showed a positive correlation with perceived online social support and self-monitoring, but did not show a significant correlation with subjective well-being. Next, it was found that the higher the level of self-monitoring, the higher the probability of using of Finsta. In addition, the number of Instagram accounts was found to partially mediate the relationship between self-monitoring and perceived online social support. In other words, the higher the self-monitoring was associated with, , the more Instagram accounts were, and many Instagram accounts increased the level of perceived online social support. For the first time in Korea, this study confirmed the relationship between Finsta use and perceived online social support, self-monitoring, and subjective well-being., Also, this study was meaningful because itand explored whether self-monitoring leads to perceived online social support through the number of Instagram accounts. In addition, this studyit has social meaning in that it sheds light on how online interactions are connected to the real world.

Effects of Self-esteem, Locus of Control to Military Life on Soldiers Adjusting: Mediating effect of Social Support and Stress Coping Strategies (자기존중감 및 통제소재가 병사의 군 적응에 미치는 영향: 사회적 지지와 스트레스 대처 방식의 매개 효과)

  • Joo Hee Lee ;Jung Kyu Kim
    • Korean Journal of Culture and Social Issue
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    • v.21 no.3
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    • pp.299-315
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    • 2015
  • This study examines correlations among factors that reportedly affect adjustment to military life: self esteem, locus of control,, social support and stress coping strategies. The study also attempts to validate the structural model to enhance understanding of the process of adjusting to the military life. The subjects of the study were 447 listed soldiers from private to sergeant currently stationed and serving in an army post in Gangwon-Do, Korea. The following tools were used for this study. Based on self-inventory questionnaires, evaluations were made regarding self esteem, locus of control, social support, stress management, adaptation to military life. Reliability of each criterion was evaluated based on reliability examination, correlations among parameters were analyzed, and the structural equation model was validated to verify the research model. The results of the study can be summarized as follows. First, internal control and self esteem have significant positive influence on social support and stress coping. Second, internal control and self esteem affect adjusting to military life through social support and active coping, two factors mediated in this study to act as parameters between self-esteem and internal control and military adaption. This study emphasizes intervention such as establishment of a social support system and training for taking necessary actions as limitations of studies dealing with internal traits and military adaptation. Since the subjects of this study were chosen from an army based in a single location for convenience' sake, it may be difficult to generalize the results to analyze the entire military.

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