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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Geosynthetic Society
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Journal DOI :
Korean GeoSynthetics Society
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Volume & Issues
Volume 2, Issue 3 - Sep 2003
Volume 2, Issue 2 - Jun 2003
Volume 2, Issue 1 - Mar 2003
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A Study of Load Reduction Effect on Conduits Using Compressible Inclusion
Kim, Jin-Man ; Choi, Bong-Hyuck ; Cho, Sam-Deok ; Joo, Tae-Sung ; Kim, Ho-Bi ; Rhee, Jong-Wha ;
Journal of the Korean Geosynthetic Society, volume 2, issue 2, 2003, Pages 3~11
Researches on the induced trench method using compressible materials such as clay, mud, straw, or EPS block have been performed to reduce the load acting on buried conduits under a high fill. The induced trench method has the problems that the arching area due to the compressible arching material is one dimensional or localized in a narrow zone. The main purpose of this study is to solve the problems of the induced trench method mentioned above. The various types of laboratory model tests are conducted to find the effects of the variations of EPS block width, multilayer application, soil density, and diameter of the flexible steel pipe. A series of model tests was conducted to evaluate the reduction of earth pressure on conduits using EPS block. Based on modeling test it is found that the magnitude of vertical earth pressure on conduits was reduced about 60% compared with conventional flexible conduit systems.
Effects of Foundation Stiffness and Surface Loading on the Behavior of Soil-reinforced Segmental Retaining Walls
Yoo, Chung-Sik ;
Journal of the Korean Geosynthetic Society, volume 2, issue 2, 2003, Pages 13~24
This paper presents the results of investigation on the effects of foundation stiffness and surface loading on the performance of soil-reinforced segmental retaining walls using the finite element method of analysis. A parametric study was performed by varying the foundation stiffness and the location of surface loading. The results of the analyses indicate that the wall deformation and reinforcement tensile load tend to increase with decreasing foundation stiffness with little variation in the horizontal and vertical stress distributions at the back and the base of the reinforced soil zone. Also revealed is that the increment of reinforcement tensile load due to the presence of surface load may be significantly over-estimated when using the conventional approach. Furthermore, the external stability should be carefully examined when a surface loading is present just behind the reinforced soil zone. The implications of the findings from this study to current design approaches are discussed in detail.
A Study of Application on Waste Tire Blocks Filled with Concrete
Shinl, Eun-Chul ; Lee, Chang-Sub ;
Journal of the Korean Geosynthetic Society, volume 2, issue 2, 2003, Pages 25~31
Most recently, environmental problems arise from management waste tires by increasing number of automobiles. Waste tires are not compressible and not easy for degradation in landfill. Even if it were landfill, it is difficult to treat. Total amount of waste tires is about 20 million per year and the collection is 68.6% in this country. Structure of slope stability using waste tire blocks filled with concrete increases durability, reduce construction period, and it can be utilized as an example. Therefore, it reduces the volume of waste and recycles waste. Also, it prevents the air pollution due to the incineration and creates economic value.
Evaluation of Long-Term Performance of Composite Geotextiles for Reinforcement
Jeon, Han-Yong ; Ryu, Jung-Jae ; Lee, Su-Nam ; An, Yang-Nim ; Cho, Bong-Gyun ;
Journal of the Korean Geosynthetic Society, volume 2, issue 2, 2003, Pages 33~38
Polyester woven geotextiles to be bonded with nonwovens were manufactured for reinforcement and the allowable strength of these were obtained by the results of creep tests. Long-term design strength were calculated in consideration with factors of safety for design and construction and the long-term behaviors of geogrids were compared to those of composite woven geotextiles to examine the reinforcement function. From the experimental results, it was confirmed that these woven composite geotextiles could have the sufficient performance as an alternative geosynthetics instead of geogrids and the further study will be continue to confirm the possibility of woven composite geotextiles as the excellent reinforcing material.