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장용채,임동진 木浦海洋大學校 2003 論文集 Vol.11 No.-
In case of embankment in soft ground, must know whether base can support as is stable. That improve base using Sand Compaction File Method that is used mainly in soft ground improvement method of construction, recognized using whether when did sphere of soil improving differently, conduct of base by this changes how or 2D-σ for windows that is finite element program to search proper improvement dimension.
토목섬유를 이용한 대형직접전단시험에 관한 기초적인 연구
장용채,이승은 木浦海洋大學校 2005 論文集 Vol.13 No.-
Recently reinforced earth method using geosynthetics as a reinforcement has been getting popular and usefulness also has been increased due to reductions in costs and ease of construction and great exterior view. Geosynthetics are now being used as ground reinforcement materials all over the world, because we can make ground structures using geosynthetics economically and safely. The most important part in the earth reinforcement is the interface between soil and the reinforcement. Shear strength and shear behavior in this interface make a great role relating to the reinforcement effect. this paper presents 2 kinds of direct shear test results
장용채 한국항해항만학회 2000 韓國港灣學會誌 Vol.14 No.1
This study is a suggest a measurement method of lateral displacement, which can be used to judge the stability of bridge abutment on soil undergoing lateral movement. The abutment of bridge on soft foundation makes lateral movement due to the settlement of back fill and lateral flow. To measure the displacement of such a abutment, there are a lot of indirect method for measurement such as survey of leveling or inclinometer gauge around the abutment. But all of them are not sufficient to confirm the ground behavior and measure the exact lateral behavior of structure. As making the structure and pile cooperatively by measuring the movement of lateral displacement, for measuring the abutment displacement precisely by using the inclinometer. In this work, we try to suggest efficient measuring method of abutment displacement and its application.
장용채,이승은 木浦海洋大學校 2004 論文集 Vol.12 No.-
The controls for safe construction of road embankment on soft clays should be performed not to develope any distresses in the pavement structures. For this construction controls engineers measure consolidation settlements of the soft clays during and after placing embankment, analyze them, and then predict residual settlements. In this study, numerical analysis are performed for investigating each influence factor on central settlement. for example geological characteristics and material properties.
장용채,조성민 木浦海洋大學校 2002 論文集 Vol.10 No.1
The construction job-site is using plate bearing test, field density test, radioisotope method of measurement (RI method) etc. for compaction control by strength, but necessity of improvement is brought because these are required the great times and effort. As long as existing tamping is damp for alternative presentation of examination method in this paper, arranged part with "Compaction value that use repulsive force inspection method" research wave. New techniques tried field test using do measurement chapter which produce itself in field of this subject achievement as that measure size of repulsive force.
서해안 고속도로의 노상처리를 위한 Soil-cement 적용 사례연구
장용채,김홍종,전한용 한국항해항만학회 2003 한국항해항만학회지 Vol.27 No.4
The region of Kochang (Chollabuk-Do) located in the west-southern area of the Korea and passed by the West Coast Expressway has the yellow collar soil(Hwang-To) primarily containing clay. Hwang-To servers as a soil appropriate for growing the watermelon and yam, but as a subgrade material not strong for constructing the roads. Particularly, the subgrade material of this study site was not qualified for the standard of the subgrade material quality. The properties of the subgrade layer showed that the strength of the subgrade material was not strong enough to sustain the subgrade strength in constructing the roads since the passing ration of the No. 200 sieve was about 25% to 82% and the ground water level was nearly equal to subgrade one. Thus, the objective of this study was to present the methods obtaining the proper subgrade strength of cutting area to construct the secure and solid expressways in the fragile area. 우리나라 서남권에 해당하는 서해안고속도로가 통과하는 전라북도 고창지역은 점토분이 많이 내포돼 있는 황토가 많다. 황토는 수박이나 고구마 같은 작물의 재배에는 양질의 토사이지만, 도로를 구축하기 위한 노상재료로 사용하는데는 원하는 강도값을 얻기가 힘들 토사였다. 이 연구 대상구간의 지역은 절토부의 노상재료가 원하는 재료의 품질기준을 충족시키지 못하였다. 노상층의 재료 특성을 보면, #200번체 통과량이 25~82%정도로 지하수위가 거의 노상면과 일치하여 자연함수비 과다로 시공시 노상토의 지지력 확보가 불가능한 것으로 판단되었다. 본 연구는 이와 같이 지지력이 부족한 현장에 적절한 절토부 노상지지력의 학보방안을 수립하여 원하는 공정을 추진함으로서 보다 안전하고 튼튼한 고속도로를 건설하는데 있었다.
장용채 木浦海洋大學校 2000 論文集 Vol.8 No.2
The existing soil at a construction site may not always be totally suitable for supporting structures building, bridges, highways, and dams. Sometimes the top layers of soil are undesirable and must be removed and replaced with better soil on which the structural foundation can be built. The soil used as fill should be well compacted to sustain the desired structural load. Cement is increasingly used as a stabilizing material for soil, particularly for the construction highways and dams. As in the case of lime, cement helps decreased the liquid limit and increase the plasticity index and workability of clayey soils. In this case, suggest the amount of soil-cement and the depth of improving sub-basement in highway.