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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Geosynthetic Society
Journal Basic Information
Journal DOI :
Korean GeoSynthetics Society
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Volume & Issues
Volume 6, Issue 4 - Dec 2007
Volume 6, Issue 3 - Sep 2007
Volume 6, Issue 2 - Jun 2007
Volume 6, Issue 1 - Mar 2007
Selecting the target year
Suggestion for Interpretation of Limit Creep Strain of Geogrids
Jeon, Han-Yong ; Mok, Mun-Sung ;
Journal of the Korean Geosynthetic Society, volume 6, issue 4, 2007, Pages 1~6
New procedure for evaluation of creep reduction factor by the limit creep strain concept was introduced through the analysis of creep test results. To determine the limit creep strain of the geogrids, the Sherby-Dorm Plots were applied and the results of this procedure were compared and interpreted, respectively. From this, it is seen that the creep reduction factors were 1.45 for the geogrid samples used in this study. Through the comparison of creep reduction factors in 10% creep strain criteria, it was confirmed that the range of creep reduction factor is about 0.06~0.14 for the geogrid samples in this study.
Numerical Analysis on Effective Countermeasure for Ground Subsidence due to Mining Hazard
Hong, Won-Pyo ; Lee, Jae-Ho ; Hur, Se-Young ;
Journal of the Korean Geosynthetic Society, volume 6, issue 4, 2007, Pages 7~13
When the structure such as roadway, railway are constructed on abandoned coal mine area, the countermeasure to prevent settlements is necessary. In this study, numerical analyses are performed to evaluate the effect of the various countermeasures. As a results, the method which is filling the coal mine is more effective than that of reinforcing the ground above the coal mine. The ground settlement decreases hyperbolically with increasing the filling ratio of the coal mine. Also, the relationship between the filling ratio and the settlement reduction ratio is discussed precisely.
Analysis of PVD Degree of Consolidation with Various Core Types
Shin, Eun-Chul ; Kim, Sung-Hwan ; Zhanara, Nazarova ;
Journal of the Korean Geosynthetic Society, volume 6, issue 4, 2007, Pages 15~20
Recently, the demand for industrial and residental land are increasing with economic growth, but it is difficult to acquire areas for development with good ground condition. For efficient and balanced development of land, new development projects are being carried out not only the areas with inland but those with the soft ground as well. As soft grounds have complex engineering properties and high variations such as ground subsidence especially when their strength is low and depth is deep, we need to accurately analyze the engineering properties of soft grounds and find general measures for stable and economic design and management. Vertical drain technology is widely used to accelerate the consolidation of soft clay deposits and dredged soil under pre-loading and various types of vertical drain are used with there discharge capacity. Under field conditions, discharge capacity is changed with various reason, such as soil condition, confinement pressure, long-term clogging and folding of vertical drains and so on. Therefore, many researcher and engineer recommend the use of required discharge capacity. In this paper, the experiment study were carried out to obtain the discharge capacity of six different types of vertical drains by utilizing the large-scale model tests and discharge capacity, degree of consolidation with the time elapsed.
A Comparison Between the Ballast Replacement Method & Geosynthetics-Reinforced Method for Restraint of Mud Pumping in Service Line
Choi, Chan-Yong ; Lee, Jin-Wook ; Kim, Dae-Sang ;
Journal of the Korean Geosynthetic Society, volume 6, issue 4, 2007, Pages 21~28
3 years visual inspection has been performed on the railway lines where ballast replacement or geosynthetics-reinforcement had been used to restrain the mud pumping. The result indicates that geosynthetics-reinforcement is more effective than ballast replacement for the long-term mud pumping. In addition, the non-woven geotextile to be used for mud pumping restraint is effective when its weight is
or above. Furthermore, the lateral tensile strain under ballast on which wheel load applies ranges from 0.016 to 0.1211% and it's 10 times larger than the lateral tensile strain which ranges from 0.0078 to 0.0385%.
Evaluation of Installation Damage Factor for Geogrid using Maximum Particle Size of Backfill Material
Kim, Kyung-Suk ; Choi, Young-Chul ; Kim, Tae-Soo ; Lim, Seoung-Yoon ;
Journal of the Korean Geosynthetic Society, volume 6, issue 4, 2007, Pages 29~37
Reduction Factor for Installation Damage required for calculation of design strength of geogrid used in MSEW(mechanically stabilized earth wall) design is usually obtained in the field test simulating real construction condition. However, damages occurred in geogrid during backfill work are influenced by many factors such as polymer types, unit weight per area, backfill construction method and gradation of backfill material and field test considering these factors demands lots of time and costs. In this study, factors affecting installation damage are analyzed and empirical method for evaluating reduction factor for installation damage using maximum particle size in backfill material is suggested.
Field Performance of Reinforced Earth Wall with Steel Framed-Facing
Lee, Kwang-Wu ; Cho, Sam-Deok ; Kim, Ju-Hyong ; Seo, Chang-Won ;
Journal of the Korean Geosynthetic Society, volume 6, issue 4, 2007, Pages 39~48
This paper introduces a recently developed reinforced earth wall system with steel framed-facing. The new system incorporates a steel-framed facing that might be assembled on-site and steel strip or geogrid type reinforcements for backfill area. In order to enhance scenery view design of the wall construction, dual-structured facing is proposed in which room for planting space locates in the front of facing. A reinforced earth walls using the proposed system was constructed to verify constructability of the proposed system and facing movement and tensile characteristics of reinforcement were measured to understand the mechanical behavior.