본 연구는 4대강 보 설치에 따른 실지렁이류의 분포 특성을 파악하고자 연구를 실시하였다. 현지조사는 2018년 3월부터 10월까지 총 10회 실시하였다. 조사결과 총 18종 35,390 ind. m-2 개체가 출현하였다. Limnodrilus hoffmeisteri (77.1%)이 우점종, Branchiura sowerbyi (9.5%)이 아우점종으로 분석되었다. 건중량 분석결과 총 32.418 g m-2이 계측 되었으며, 각 종별 건중량과 TOC 농도와의 상관 분석 결과 실지렁이, 아가미지렁이와 TOC 농도 간 음의 상관성을 갖는 것으로 나타났다. 실지렁이류와 물리적·이화학적 요인들 간의 다변량 상관분석 결과 퇴적토 깊이, Clay 비율, Silt 비율, Cobble 비율, Pebble 비율, pH, TOC 항목과 상관성을 갖는 것으로 분석되었다 (p<0.05, p<0.01). 조사지역별 실지렁이류 개체수와 퇴적토 깊이 및 Clay의 비율과 비교·분석한 결과 퇴적토의 깊이와 Clay의 비율이 높을수록 개체 수가 많은 것으로 나타났다. 조사시기에 따른 실지렁이류의 개체수, TOC 비교·분석결과 3월부터 10월까지 개체수는 감소하는 경향성을 나타냈으며, TOC는 증가하는 경향성을 갖는 것으로 분석되었다.

When 3D printing is used practically at construction sites, there is a serious lack of studies on the conflict with construction-related laws and expected operational problems. Accordingly, the purpose of this study is to present obstacles and directions for improvement in construction-related laws (Building Act, Construction Technology Promotion Act, Housing Act, Construction Machinery Management Act, etc.) for practical operation of 3D printing. The important results are as follows. Amending existing construction-related laws for 3D printing is irrational and inefficient in terms of structure and material. This study proposed a method of satisfying performance required by laws or standards based on the performance design method presented in existing laws and systems through structure and material performance certification procedure. In addition, inclusion of 3D printing equipment in the Construction Machinery Management Act results in various restrictions such as equipment inspection and certification of machine parts. As such restrictions can block vitalization of 3D printing, a long-term and step-wise approach was suggested.

이 논문에서는 다양한 자료를 수집ㆍ활용하여 초창기 한국과학기술연구소 (KIST)가 한국 철강공업에 기여한 바에 대해 분석했다. KIST의 철강공업에 대한 가장 중요 한 기여로는 1969년에 있었던 신사업계획의 수립을 들 수 있다. 신사업계획은 종합제철사업 계획 연구위원회가 마련했으며, KIST의 김재관과 윤여경이 이를 주도했다. 신사업계획은 규 모의 경제, 설비의 구성, 제철소의 확장가능성 등의 측면에서 우수한 내용을 담고 있었다. 신 사업계획을 바탕으로 한국은 일본과의 협상을 추진하여 포항제철소 건설사업을 현실화할 수 있었다. 포항제철의 공식 기록은 오랫동안 신사업계획을 KIST가 주도했다는 점에 대해 언급 하지 않다가 최근에 들어서야 이를 수용하는 모습을 보였다. 이로써 KIST의 연구진이 신사업계획을 주도했다는 점은 KIST의 주장에 머물지 않고 포항제철도 인정하는 사실이 되었다. 신사업계획의 수립 이외에도 KIST는 일본과의 실무협상 추진, 제철소 운영에 대비한 예비조사, 일본 기술자를 활용한 기술자문 등을 통해 포항제철소 건설사업을 적극 지원했다. 이처 럼 KIST의 한국 철강공업에 대한 기여는 계획수립, 실무협상, 기술지원 등을 망라하는 총체적인 성격을 띠고 있었다. 이에 반해 기계공업, 조선공업, 자동차공업 등과 같은 다른 중공업 분야의 경우에는 KIST의 역할이 주로 계획수립의 차원에 머물렀던 것으로 판단된다.

PURPOSES : The Ministry of Land, Infrastructure and Transport (MOLIT) and its subordinate agencies have recently established various policies for the application of BIM and are implementing these policies, and are increasing project orders with the application of BIM. Developed countries where they have earlier adopted BIM provide BIM standards and guidelines at the national level to support BIM implementation by private-sector constructors. Domestic BIM standards and guidelines, however, have been lacking details on upper-level standards that have to be presented by ordering agencies, thereby limiting the practical application thereof. This study aims to provide BIM practice manual development measures to ensure the facilitation of the writing of BIM outputs and their delivery in the road sector. METHODS: This study first analyzed domestic BIM standards and guidelines, and examined BIM processes in the existing BIM guidelines to determine the major works required in each stage of the implementation of road construction projects. Further, the study determined those matters that were required in working BIM but were not specified in existing BIM guidelines. Those derived contents have been reflected in the definition of the configuration system in the table of contents of the BIM practice manual, and in the contents on the road sector, and the details of each configuration system have been specified. RESULTS : The proposed BIM practice manual for the road sector is a technical guide on BIM guidelines published by public ordering agencies, and provides the basic requirements and methods required for the writing of BIM models. Further, the manual provides working procedures and detailed methods for writing BIM to enable working-level staffers on BIM projects to construct BIM data. The proposed BIM practice manual was configured with considerations for domestic civil-sector BIM technology levels and will be further developed and improved according to the development of domestic BIM technology. CONCLUSIONS : In an effort to respond to the changing domestic construction technology environment, and to apply and activate BIM, this study analyzed domestic BIM standards and guidelines, and defined a working BIM manual configuration system and its detailed configuration method. The findings and improvements are presented as a BIM practice manual on development measures in the road sector. This manual is expected to minimize the repetitive trials and errors and design errors in the construction of road-sector BIM models, to improve the productivity and efficiency in the creation of BIM outputs and their delivery, and to enhance the quality and utilization of the outputs. Further, the proposed manual is expected to provide and share information on the practical cases for BIM, to bolster the capabilities of design engineering, to ensure the linkage with relevant agencies, and thus to expand the diffusion of BIM in a virtuous cycle.

Southeast Asia has become a key area for the development of the “Belt and Road’ initiative (BRI). At present, among the six economic corridors planned by the BRI, Southeast Asia has covered two of them – the China-Indochina Peninsula Economic Corridor and the Bangladesh-China-India-Myanmar Economic Corridor. In the meantime, Southeast Asia is also an important part of ”21st Century Maritime Silk Road“ initiative, and thus can been considered as a sample of demonstration for the globalization strategy of the BRI. This study finds that in recent years, China-invested infrastructure and connnectivity building (particularly the railway constructions) have been growing fast in Southeast Asia. In addition, a number of China-ASEAN industrial cooperation zones have been established. Together with an increasing number of enterprises settled in these zones, transnational supply chains have begun to take shape. In this context, China’s private-owned enterprises have also started to expand their investment in the Southeast Asian markets. Nonetheless, the BRI has been confronted with problems and challenges, and has been criticized for the lack of risk management, profitability, sustainability, localization and public support. It shows that the export of ”China Model“ can be problematic, as it remains not adapted to other countries’ local conditions. This research first looks at the achievements of the BRI in Southeast Asia, and then examines the problems and challenges in these projects. Finally, this article also aims to provide a number of policy recommendations to the Chinese government.

본 연구는 서번트 리더십이 조직구성원들의 건설적 일탈에 미치는 영향력을 살펴보려는 목적에서 수행되었다. 또한 조직기반 자긍심의 매개역할을 살펴보았다. 서번트 리더십을 통해 조직기반 자긍심이 높 아지며, 높은 조직기반 자긍심이 건설적 일탈로 이어진다는 것이다. 한편 서번트 리더십이 조직기반 자긍심에 미치는 영향력에 있어서 조직정치 지각의 조절효과를 살펴봄으로써 서번트 리더십 발휘의 상황적 맥락도 파악하였다. 건설적 일탈은 혁신지향, 조직도전 그리고 대인관계로 구분하였으며 전체 건설적 일탈로 묶어서도 분석하였다. 조직정치 지각은 전반적인 조직정치 지각을 살펴보기 위해 이익을 위해 가만히 있기와 임금/승진 정책을 묶어서 전체 조직정치 지각으로 분석하였다. 광주지역 제조업과 서비스업종 기업에 근무하고 있는 조직구성원들을 표본으로 하였으며 동일방법편의의 문제를 해결하기 위해 응답의 원천을 상사응답과 자기응답으로 설문지를 수거하여 분석하였다. 348부를 최종분석에 활용하였으며 결과는 다음과 같다. 첫째, 서번트 리더십은 건설적 일탈을 높이고 있었다. 둘째, 조직기반 자긍심은 건설적 일탈을 높이고 있었다. 셋째, 조직기반 자긍심은 서번트 리더십과 건설적 일탈과의 관계를 매개하고 있었다. 넷째, 서번트 리더십이 조직기반 자긍심에 미치는 영향력을 조직정치 지각이 조절하고 있었다. 다섯째, 매개효과와 조절효과를 모두 고려한 조절된 매개효과를 살펴보았다. 조건부 간접효과에 있어서 건설적 일탈 중 혁신지향과 전체에 유의미한 결과가 나타나고 있어 조절된 매개효과를 확인하였다. 조직도전과 대인관계에 대한 조절된 매개효과는 유의미한 결과가 나타나지 않았다. 결과적으로 건설적 일탈에 있어서 서번트 리더십이 중요한 선행변수라는 것을 확인하였다. 또한 서번트 리더십은 조직기반 자긍심을 높이고 높아진 조직기반 자긍심이 건설적 일탈로 이어진다는 것을 확인하였다. 이때 조직정치 지각이 낮은 경우에 그 영향력이 더욱 크다는 것을 알 수 있었다. 본 연구를 통해 서번트 리더십이 건설적 일탈의 중요한 선행변수라는 것을 확인하였다. 또한 조직기반 자긍심은 서번트 리더십이 긍정적 결과로 이어지는 과정으로서의 의미를 갖고 있다는 것을 확인하였다. 자연스러운 현상이라고 하더라도 조직에서 비공식적 영향력인 조직정치가 서번트 리더십의 긍정적 영향력을 약화시키고 있다는 점을 통해서 조직정치를 줄이려는 노력이 필요하다는 것을 알 수 있었다. 특히 조직의 규정, 규범을 넘어서 이를 바로잡으려는 건설적 일탈을 높이기 위해서는 조직정치를 줄이는 것이 필요하다.

Stakeholder management in construction projects is an important factor in project performance creation. The purpose of this study is to verify the effect of the recognition of the importance of the quality influence factors among the stakeholders of the construction project on the perceived quality and the project performance. The impact of the project management methodology on the project performance has been actively researched, but there is little research result on the project stakeholders. The projects to be researched are apartments and buildings that have been completed within the last five years of domestic large construction company. The method of survey is to measure the consensus of the importance of the quality influential factors among the three parties such as the ordering party, the design supervisor and the constructor, and confirm whether the agreement affects the quality of the actual project. Finally, the research model was verified by surveying the satisfaction of the client on the final product. The results are as follow. The degree of agreement on the importance of quality influential factors among stakeholders has a significant effect on perceived quality. In the relationship between perceived quality of influence factors, organizational (support) quality influenced technological quality and managerial quality, and technological quality and managerial quality also have significant influence on resource quality. The results of analysis showed that perceived quality of resources strongly influenced project performance. The remaining three experienced qualities also significantly affect project performance.

Of the daily noises, construction noises cause serious conflicts between a construction firm and residents due to their high sound pressure level and shocking, repetitive sound. While South Korea regulates construction noises on the basis of legal criteria to minimize the damage from the noises, the regulation only involves a weighted sound level (dB(A)), which is loudness, like other types of noises. However, since construction noises are characterized by very diverse spectra and waveforms, it has been indicated that they cannot be reflected only by physical loudness: SPLdB(A). In addition, the need to reflect acoustic psychological characteristics and meanings of human beings in evaluating construction noises has recently been indicated. This study aimed to use six Zwicker parameters to determine the sound quality and acoustic psychological characteristics of construction noises and analyze the correlation between physical indexes of construction noises, as found in literature review, and the Zwicker parameters. Loudness of construction noises were closely correlated with SPLdB(A); shocking noises were perceived as ‘loud, sharp, and annoying’ sound. The Zwicker parameters were most strongly correlated with loudness, followed by unbiased annoyance and sharpness, among the evaluation indexes; as for correlation with construction noises, ‘normal noises’ were closely correlated with loudness, ‘shocking noises’ were closely correlated with loudness, unbiased annoyance, and sharpness, and ‘fluctuating noises’ were closely correlated with loudness. Therefore, if loudness, unbiased annoyance, and sharpness were taken into account in terms of the sound quality in evaluating construction noises, it is expected to be useful to make and revise criteria for regulating the noises.