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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 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
Evaluation of Required Discharge Capacity of PVD with Various Core Types
Shin, Eun-Chul ; Kim, Sung-Hwan ; Kang, Jeong-Gu ;
Journal of the Korean Geosynthetic Society, volume 6, issue 2, 2007, Pages 1~8
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 & 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 four different types of vertical drains by utilizing the large-scale model tests and the required discharge capacity was calculated by several methods.
Compaction Characteristics of Zone-1 Material in Concrete Faced Rockfill Dam
Yea, Geu-Guwen ; Han, Sang-Hyun ; Lee, Jae-Ho ;
Journal of the Korean Geosynthetic Society, volume 6, issue 2, 2007, Pages 9~15
Bedding zone in CRFD (Concrete Faced Rockfill Dam) requires bearing capacity to support the concrete face slab uniformly. Also, shear strength which is a key factor in slope stability and impermeability which is to prevent a loss of soils in case of leakage of concrete slab face are needed. In this study, trial prototype construction for bedding zone in CRFD was performed to investigate the compaction characteristics of bedding zone according to the frequency of compaction, water contents and so on. As a results of series of field test, the compaction characteristics of bedding zone in CRFD was affected considerably by the depth of compaction layer and frequency of compaction.
Mechanical Characteristics of Porous Concrete using Recycled-Aggregate
You, Seung-Kyong ; Yu, Nam-Jae ; Cho, Sung-Min ; Shim, Min-Bo ;
Journal of the Korean Geosynthetic Society, volume 6, issue 2, 2007, Pages 17~20
In this study, a series of uniaxial unconfined compression test and constant-head test were performed to investigate the mechanical characteristics of porous concrete using recycled-aggregate for the varying unit weight and water-cement ratio. To enhance the permeability of the porous concrete, the recycled-aggregate with similar grain size in the range of
was used and water-cement ratio that leads to the lean-mix was adapted. The mechanical characteristics of the porous concrete cured for 3 days were examined; the compressive strength and
showed their maximum values with 40% water-cement ratio and
unit weight and the permeability coefficient was averagely measured in the range of
regardless of water-cement ratio and unit weight.
Wide-Width Tensile Strength Properties of Geogrids according to Specimen Length and Testing Speed
Cho, Sam-Deok ; Lee, Kwang-Wu ; Oh, Se-Yong ;
Journal of the Korean Geosynthetic Society, volume 6, issue 2, 2007, Pages 21~26
The tensile properties of geogrid are affected by such factors as temperature, specimen length, gauge length, testing speed and measuring equipment. The tensile strength of geogrids can be determined by ASTM 06637 and ISO 10319. The main differences between two testing methods are testing speed and specimen length. This paper presents the results of the wide-width tensile tests for three geogrids according to different specimen length and tension speed.
Determination Technique of Cut-Slope Reinforcing Method Considering the Effect Factor
Han, Jung-Geun ; Lee, Jong-Young ; Lee, Myung-Ho ; Choi, Poong-Kon ;
Journal of the Korean Geosynthetic Society, volume 6, issue 2, 2007, Pages 27~32
Analysis was performed using AHP (Analytic Hierarchy Process) technique for the determination of priority on the effect factors and the preferences on cut-slope reinforcing methods. The results from professional group, such as researchers, design engineers and construction engineers, show that stability, durability and environmental condition are the most important effect factors. The retaining wall and the cutting methods were predominant for stability, economical efficiency, and maintenance/management in the evaluation of preferences on the cut-slope reinforcing methods interpreted for the increasing method of safety factor.