• 대한토목학회논문집
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• 제14권4호
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• pp.897-905
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• 1994

건설공사 정보분류체계는 공사관리기법의 적용효과를 향상시킬 수 있는 하나의 도구로 활용될 수 있으며, 공사의 단계별 발생정보를 네트워크와 연계가 가능하도록 하고, 효과적인 원가관리로서 공사비를 절감시킬 수 있다. 본 연구에서는 이러한 공사관리기법에 적용될 수 있는 표준화된 건설공사 정보분류체계의 개발을 시도하고 있으며, 연구내용은 크게 다음의 3가지로 요약된다: (i) 토목공사 전체를 시설요소, 구조요소, 공사요소의 3단계로 분류하여 코드화한 공사분할체계의 개발, (ii) 적산과 공정 관리등에 관련되는 기타정보들을 포함한 통합 정보체계의 구축, (iii) 전산적용시 입력자료로 활용가능한 연관 데이타베이스의 구축. 본 연구결과 제안된 정보분류체계는 실무설계내역서 등과의 검증결과 공사의 각 단계별로 발생되는 정보들의 체계적이고 표준적인 관리를 가능하게 할 것으로 판단된다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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• pp.1224-1239
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• 2008

The earth retaining walls using stabilizing piles can be applied to shallow excavation works without any stiffener. But, It demends a variety of installed composite stiffener on the earth retaining walls when it is installed as deep excavation works. Because, it causes an excessive displacement of walls. This research tried to overcome the problems created by the above issues and intended to apply the composite stiffener. The model test, focused on the effect of installed composite stiffener, measured the bending stress with stabilizing piles and walls, the settlement of earth surface, the displacement of walls for a step excavation and an increase in strip load. With the test results and soil deformation analysis, the reinforcement effect(relating to control displacement and earth presure) was analyzed in a qualitative and quantitative manner. It is expected to overcome a deep excavation works.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2005년도 학술발표회(1)
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• pp.182-183
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• 2005

• Computers and Concrete
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• 제16권2호
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• pp.287-309
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• 2015

FormWorks-Plus is a generalized public domain user-friendly preprocessor developed to facilitate the process of creating finite element models for structural analysis programs. The lack of a graphical user interface in most academic analysis programs forces users to input the structural model information into the standard text files, which is a time-consuming and error-prone process. FormWorks-Plus enables engineers to conveniently set up the finite element model in a graphical environment, eliminating the problems associated with conventional input text files and improving the user's perception of the application. In this paper, a brief overview of the FormWorks-Plus structure is presented, followed by a detailed explanation of the main features of the program. In addition, demonstration is made of the application of FormWorks-Plus in combination with VecTor programs, advanced nonlinear analysis tools for reinforced concrete structures. Finally, aspects relating to the modelling and analysis of three case studies are discussed: a reinforced concrete beam-column joint, a steel-concrete composite shear wall, and a SFRC shear panel. The unique mixed-type frame-membrane modelling procedure implemented in FormWorks-Plus can address the limitations associated with most frame type analyses.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.1377-1388
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• 2008

In our country where over 80% of land is mountainous, decomposed granite soils are often used as building materials for civil engineering works. Seashores are having great difficulties in management and treatment of marine byproducts that are left vulnerable. It is necessary to find a way to efficiently utilize such vulnerable marine byproducts. For this reason, shell and ocher were mixed together in order to efficiently utilize ocher that is being used frequently as a building material in civil works and shell that is a type of marine byproducts being thrown away. The purpose of this study is to examine the extent to which shell-ocher mixture can reduce liquefaction through cyclic triaxial test. The author of this study aims to provide the possibility for application at construction site of shell-ocher mixture.

• 한국산학기술학회논문지
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• 제16권6호
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• pp.4208-4215
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• 2015

대부분의 행정업무는 주소를 기반으로 수행하고 있기 때문에, 공간정보는 행정업무 수행에 핵심적인 요소이다. 행정업무에 공간정보를 활용하기 위한 많은 시스템이 구축되어 있으나, 도로점용허가 업무에 공간정보를 활용하기 위한 시스템의 구축에 대한 연구는 이루어지고 있지 않은 실정이다. 본 논문에서는 도로점용허가 행정업무에 공간정보를 활용하는 시스템의 구축방안을 다룬다. 시스템 구축방안은 업무분석, 활용 시나리오 도출, 시스템의 기능도출, 그리고 데이터마트 구축방안을 포함한다. 첫째, 업무편람 분석을 기반으로 도로점용 업무의 프로세스 및 각 프로세스를 구성하는 활동을 정의하고 도식화 한다. 둘째, 도출된 업무 활동 중 공간정보가 활용 될 수 있는 시나리오를 도출한다. 셋째, 도출된 업무 프로세스 및 공간정보 활용 시나리오를 시스템으로 만들기 위한 서비스의 기능을 도출한다. 마지막으로 본 시스템에 사용될 공간정보의 데이터마트 구축방안을 수립한다. 본 연구에서 제안하는 시스템 구축방안은 응용 아키텍처 및 데이터 아키텍처의 일부를 포함한다. 추후 시스템을 구축하려면 하드웨어 아키텍처와 소프트웨어 아키텍처의 구성방안이 추가로 연구되어야 할 것이다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1995년도 가을 학술발표회 논문집
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• pp.41.1-44
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• 1995

The JV method is an epochal civil engineering style that boasts of significant pile driving power through low-vibration works by ideally combining the high pressure water injected from the water jet cutter and the vibrations combining from the vibratory pile driver extractors. As a result, you are ensured stable and safe pile driving and extraction in bedrocks that were previously impossible with conventional machines and methods. The other advantage is its high performance and a low-pollution characteristis that is ensured by suppressing ground vibrations. This is a very important factor since it often becomes an issue upon civil engineering in the city. With the addition of this method. the range of steel pipe pile, steel sheet pile and other steel pile use has been drastically expanded. Other advantages of this method incldes accurate works, shortening of the construction period and improved work performance. Since the minimun amount of high pressure water is used to drill the ground, it not only loosens the ground, but also cuts the ground at the tip of the pile to improve driving works.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 지반환경 및 준설매립에관한 학술세미나
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• pp.96-109
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• 2001

Land was reclaimed at the waterfront in the Pluit area of Jakarta for a 90ha residential-cum-recreational development. The reclamation works involve construction of permanent and temporary dykes, fill placement, soil improvement, dredging of internal canals and marina, and construction of canal revetment. The site lies on 16m to 18m thick soft seabed deposits. Settlement of the reclaimed areas will result as a consequence of consolidation of the soft underlying sediments. In order to reduce post-construction settlement to within acceptable levels, a system of vertical drains and preloading was adopted. This paper describes the use of Fibredrain, a prefabricated vertical drain made of jute and coir fibres developed at the National University of Singapore, in the soil improvement works and a secondary use in the construction of perimeter dykes for the reclamation works. The construction of the perimeter dyke must be carried out in such a way that slope stability is on ensured. Bamboo rafts and bamboo clusters with Fibredrain inserted, and stage construction were employed to improve stability during the dyke formation for the Pantai Mutiara project.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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• pp.932-937
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• 2008

The asphalt waste has been collected more than ten thousands' ton from repairing works on the road and excavation repair works, most of them are disposed on land of reclamation. Only a few percentage of wasted asphalt recycled to new one. Therefore, In this study, usage of wasted asphalt and has been done engineered characteristic test for recycling materials of sub-grade and structure. To know the characteristic of asphalt waste, tamping test, bearing-ratio test, permeability test and direct shear test was done using asphalt-sand mixture. The test results shows that, mixed asphalt materials with sand can be used for materials of subgrade-soil and structure.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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• pp.1036-1041
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• 2008

In order to analysis the reason of sliding failure in embankment slope under construction in soft soil area, a model section located in Gimhae Region in Gyeongsangnam-Do, where the sliding failure had been occurred during embankment works in soft soil area, had been selected. This area had been firstly treated with the Pack Drain Method, and additional embankment works of 9.7 meters out of total 14 meters in thickness had been under construction. The results of analysis showed that the reason of sliding failure were overspeed in embankment construction and the overestimation of design factors in calculating strength of each layer of embankment and poor management and inaccuracy reading of measurement devices.