• 한국도로학회지:도로
• /
• v.6 no.2 s.20
• /
• pp.49-53
• /
• 2004

• The Safety technology
• /
• no.41
• /
• pp.31-34
• /
• 2001

• Journal of the Korean Geotechnical Society
• /
• v.28 no.8
• /
• pp.89-99
• /
• 2012

The expansion of a road on soft ground could induce an additional settlement to the existing road because of the consolidation characteristics of the soft soil layer subjected to additional load by an adjacent banking. In such case, the existing road could be faced with various problems during the stages of the construction and maintenance, such as deterioration of not only the surface smoothness yielding the decrease in automobile performance safety but also the structural stability of the embankment. These kinds of problems are expected to occur more freguently especially for the deep ground level with a fairly thick soft soil layer. Therefore, they should be examined and studied adequately during the design stage. As a reference case study, this paper deals with the project named Namhae Expressway of 2nd Branch with the soft soil layer with the thickness upto about 50m. After a lengthy review of the original design, an improved design is proposed.

• Journal of the Korean GEO-environmental Society
• /
• v.21 no.8
• /
• pp.5-13
• /
• 2020

During the construction of underground space expansion of old facilities, it is necessary to secure temporary residence space for existing residents as well as noise and vibration issues during construction, and in the case of commercial, industrial, and social use, damage is expected from suspension of the use of facilities. There is a need for a technology that minimizes noise and vibration during underground expansion, enabling the use of existing facilities even during construction. In this study, a practical underground extension model is proposed by analyzing the behavior of the temporary structure and the surrounding ground as a result of measurement at each construction stage for a actual construction site. In order to solve the problems that occurred during construction, the basement slabs were placed in advance after the initial excavation. The measurement results (building inclinometer, crack measurement system, structure inclinometer and surface settlement meter) at the site were reviewed to analyze the behavior of the temporary structure and surrounding ground. As a result, it was confirmed that the inclinometer of the building and the structural inclinometer showed a tendency that the displacement after the slab line was placed was reduced or converged. The placement of basement slabs during underground extension not only relived the noise and vibration problems during construction, but also secured the stability of structures.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2006.11a
• /
• pp.448-452
• /
• 2006

Remodeling is deemedto be very important from the perspective of the recycling of resources, instead of scrapping the existing structure, and the creation of 'value added' which is equivalent to the 'value added' from the new construction. In addition, the selection of the appropriate construction method assures the saving of construction cost, the shortening of construction period, and the improvement of quality. Moreover, the selection of the construction method for the remodeling construction is far more important than the current new construction work, considering that the characteristicsof construction site and the structure have a great effect on the construction in case of the remodelingconstruction. Current selection of the construction method, however, does not reflect the construction information, but just adheres to the construction method which was commonly applied previously. Therefore, this study proposes the measure to embody the tool that assists the decision making in selecting the construction method.

• The Safety technology
• /
• no.165
• /
• pp.12-14
• /
• 2011

경기 남양주 진접지구는 수도권에서 인기가 높은 신도시 중 하나다. 서울과 인접해 있으면서도 한적한 전원의 정취를 느낄 수 있기 때문. 최적의 주거환경을 갖춘 곳이지만 딱 한 가지 아쉬운 것이 있으니 바로 교통문제다. 진접지구와 서울을 잇는 유일한 도로인 국도47호선 퇴계원-진접구간은 상습 지 정체구간으로 악명 높다. 진접지구가 개발됨에 따라 인구유입은 지속적으로 늘고 있는데 반해 도로는 이를 감당키 어려운 4차로에 불과한 것. 그래서 지역민들은 늘 교통대란에 시달리고 있는 상황이다. 하지만 이 고생도 올해면 끝날 듯하다. 퇴계원-진접간 도로를 8차로로 확장하는 공사를 맡고 있는 쌍용건설이 공사에 더욱 박차를 가하고 있기 때문이다. 게다가 우수한 안전관리로 대 내외에 이름까지 떨치고 있어 도로의 안전성은 물론 공정 전반이 신뢰를 얻고 있다. 안전으로 미래 진접을 열어갈 길을 만들고 있는 쌍용건설(주) 퇴계원-진접간 도로공사 현장을 찾아가 봤다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2022.06a
• /
• pp.150-153
• /
• 2022

최근 XR은 LED스크린의 VR과 그 LED 스크린의 외부영역을 AR 그래픽으로 덮는 방법으로 LED에서 표현되는 VR영상과 확장된 AR의 효과로 LED VR의 확장의 개념으로 가상환경 제작으로서 많이 시도 되고 있다. 그러나, 여전히 LED 스크린의 VR에서 어떤 가상의 객체가 AR로 튀어 나올 때 타이밍을 맞추어 전환해야 할 경우 부자연스럽거나 동기가 맞지 않아 합성결과가 어긋나 품질이 떨어지며, 여러 객체를 동시에 수동으로 전환시켜야 할 때 객체의 제어에 어려움이 많을 수 있다. 본 논문에서는 그래픽 오브젝트가 VR과 AR의 경계를 오갈 때 자동으로 자연스럽게 전환/합성 가능하도록 하는 'Culling 박스'와 또, 여러 렌더링 머신에서 같은 오브젝트 제어를 동시에 제어 가능한 'TCP/IP 기반의 원격제어 UI'를 설명한다. 컬링박스는 전환해야 할 객체가 많은 복잡한 장면에서 모든 오브젝트가 일정 경계에서 자동으로 전환되며, 원격제어 UI의 타임라인 에디터와 이벤트 제어메뉴 UI를 통하여, 각각의 다른 머신의 시퀀스 및 오브젝트들을 제어 가능하여 효율적인 XR제작이 가능함을 확인 하였다.

• Conservation Science in Museum
• /
• v.10
• /
• pp.29-42
• /
• 2009

This paper explores the types (species of trees) of 25 pieces of waterlogged wood excavated from the area between Gwangju and Jangseong during road expansion by the Gwangju National Museum. These 25 pieces of wood include nine pieces of Quercus (Lepidobalanus Cerris)sp., six pieces of Quercus (Lepidobalanus Prinus)sp., three pieces of Castanea sp., two pieces of Salix sp., one piece of Alnus sp., one piece of Prunus sp., one piece of Morus sp., one piece of Chionanthus sp., and one piece of Acanthopanax sp.

• Proceedings of the Korea Concrete Institute Conference
• /
• 2008.11a
• /
• pp.887-890
• /
• 2008

Shindorim Station is the most important transfer station which is crossed Seoul Metro Line-2 and national rail traffic Kyungbu, Honam and Kyungin Line etc.. There is the lagest transfer passengers and the greatest rail traffic. Therefore to solve the congeted station problem, Shindorim station extension project has been planned. This project has very difficult many problems. One of them is undercrossing the national rail traffic ground without open-cut excavation. There are many undercrossing construction methods in our country. But this project is required the best safety. So the best applicable methods are investigated, which are Front-Jacking, NTR and TRcM. In Design stage Front-Jacking with PRS method which is gound reinforcing is applied.

• Journal of the Korea Institute of Building Construction
• /
• v.7 no.4
• /
• pp.22-30
• /
• 2007