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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Geosynthetic Society
Journal Basic Information
Journal DOI :
Korean GeoSynthetics Society
Editor in Chief :
Volume & Issues
Volume 10, Issue 4 - Dec 2011
Volume 10, Issue 3 - Sep 2011
Volume 10, Issue 2 - Jun 2011
Volume 10, Issue 1 - Mar 2011
Selecting the target year
Performance Evaluation of Asphalt Pavement Reinforced with Glass Fiber Sheet Type of Geosynthetics
Cho, Sam-Deok ; Lee, Dae-Young ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 1~8
This paper presents the performance evaluation of asphalt pavement reinforced with fiber sheet type of geosynthetics and observations conducted to evaluate the practical efficiencies and performance of overlay asphalt pavement reinforced with geosynthetics. In this study, performance evaluation were performed for the six section of construction site. The performance indcators of asphalt pavement reinforced with geosynthetics has been collected Automatic Road Analyzer (ARAN), Falling Weight Deflectometer (FWD) and have been analyzed for rutting, cracking ratio, falling weight and international roughness index. As a result of performance evaluations, geosynthetics reinforced asphalt pavement is sigficant effect on increasing a cracking resistance than the non-reinfroced asphalt pavement, also rutting and crak is slowly increase as incerasingly performance period.
Shear Characteristics of a SCP Ground with Different Length of Sand Pile and Replacement Ratio
Lee, Jin-Soo ; Lee, Kang-Il ; Lee, Young-Yoel ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 9~18
This paper presents shear characteristics of a ground improved by sand piles. The sand piles have different length and diameter depending on the depth of a clayey layer. A series of CU triaxial compression tests are carried out on specimens covered with/without soft material which is similar to geotextile. The results show that the shear strength and stress ration increase as the length and the diameter of the sand pile increase. In addition, covering the specimen with the soft material appears to affect those characteristics as well. The increase of cohesion seems to be more remarkable compared to internal frictional angle.
Liquifaction Evaluation of Saemangeum Area and the Considerations of Liquifaction Effect to the Foundations of Structures in Near Future (II)
Kim, You-Seong ; Ko, Hyoung-Woo ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 19~24
In the preceding study, the possibility of liquefaction according to the liquefaction evaluation methods was predicted in Saemangeum reclamation area for tide embankment, Jeollabuk-do, Korea. The risk of liquefaction was also expected when foundations and underground structures were built at a depth within 10m below ground surface, and meticulous care was required in the design of them in the future. This study considered the effect of the embedded depth for foundation design regarding liquefaction based on the various earthquake data from literatures. On the basis of the results of this study, an alternative consideration in foundation design for liquefaction was proposed for the Saemangeum area.
Experimental Study on the Unsaturated Characteristics of Dredging Soils at Saemangeum Area
Song, Young-Suk ; You, Seung-Kyong ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 25~32
The matric suction and volumetric water content of dredging soils obtained from Saemangeum area were measured by the automated Soil-Water Characteristic Curve (SWCC) apparatus under both drying and wetting conditions. Based on the test result, SWCCs of the dredging soils were estimated by the van Genuchten(1980) model. The matric suction of drying process is larger than that of wetting process at a same effective degree of saturation. The suction stresses for various matirc suctions were estimated using Lu and Likos(2006) model and the Suction Stress Characteristic Curves (SSCC) were predicted using the independent parameter of SWCC. The suction stress of drying path was increased and decreased, while the suction stress of wetting path was continuously decreased with increasing the effective degree. Also, the suction stress of drying path is larger than that of wetting path at a same effective degree of saturation. The Hydraulic Conductivity Function(HCF) was also predicted by the van Genuchten(1980) model. The hydraulic conductivity was increased with increasing the volumetric water content. The hydraulic conductivity of drying path is larger than that of wetting path at a same matric suction. According to the results of SWCCs and SSCCs, the hysteresis phenomenon of suction stress or matric suction during both drying and wetting paths was occurred. The main reason of hysteresis phenomenon is a ink bottle effect of water among soil particles.
Evaluation of correlation between Strain mudulus (Ev2) and Deformation modulus (E
) Using Cyclic Plate loading Test and LFWD
Choi, Chan-Yong ; Lee, Sung Hyok ; Bae, Jae Hun ; Park, Doo Hee ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 33~41
In this study, it conducted a compaction quality control test in 29 domestic construction sites and investigated the relationship between classical method (Cyclic Plate bearing test) and LFWD test with subgrade materials which consist in sandy soil and gravelly soil. According to the test results, the most of soil types were mostly satisfied with specification criterion and gravelly soils were easily satisfied with values over 3 times greater than specification criterion. In term of the correlation relation of soil modulus with the two compaction quality control test methods, it is shown that the sandy soil types were a good correlation, while gravelly soil types with a high stiffness materials were indicated less correlation. After the compensation for stress condition, a linear regression for elastic modulus were higher correlation.
Pullout Resistance of Geosynthetic Strip with Rounded Band Anchor
Lee, Kwang-Wu ; Cho, Sam-Deok ; Han, Jung-Geun ; Hong, Ki-Kwon ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 43~51
This paper describes the results of pullout tests in the laboratory, which are conducted to assess the pullout performance of recently developed geosynthetic strip reinforcement with rounded band anchor. The geosynthetic strip can be used as reinforcements in reinforced soil wall with concrete block facing. The pullout resistance of the geosynthetic strip with rounded band anchor is mobilized by the combination of the interface friction between soil-reinforcement surface and the passive soil resistance caused by the rounded band anchor. Therefore, both the friction resistance and the passive resistance have to be considered in design. From the pullout test results, when the rounded band anchor are formed in the end part of the geosynthetic strip, pullout strength increases about from 10% to 65%. The passive resistance can be evaluated based on the pullout test results.
Experimental Study on Seismic Performance Evaluation of Lake Dike Structures under Earthquake Loading
Shin, Eun-Chul ; Kang, Hyeon-Hoe ; Kim, Tae-Jin ; Chae, Young-Su ; Park, Jeong-Jun ;
Journal of the Korean Geosynthetic Society, volume 10, issue 3, 2011, Pages 53~62
This paper presents the characteristics behavior of dike structure and foundation ground through the shaking table model test. The vibration loadings of design earthquake acceleration of 0.154g was applied to this laboratory model test regarding on dike structure and foundation ground under the structure. The model was formulated with 1/100 design of representative cross section for evaluating the effectiveness of vibration. Based on the test results, we can analysis the behavior of lateral displacement and settlement characteristics of structure under the earthquake loading. The pore water pressure was also monitored in the upper, middle and lower layers of ground. Finally, the actual displacements and pore water pressure of the structure can be predicted by using the results of the laboratory shaking table test.