연약지반에 설치된 조립질 말뚝의 지지력 특성 = Characteristics of Bearing Capacity of Granula Columns on Soft Ground

다국어 초록 (Multilingual Abstract)

This paper presents the performance of ground treatment to support road embankment on soft ground. The long-term settlement characteristics of refuse landfill were analyzed by Sower(1973);Yen and Scanlon(1975). As a result of field test, the predicted settlement exceed the allowable settlement and ultimate bearing capacity is not satisfied. Therefore, the ground was treated by stone columns.
The effectiveness of dynamic replacement was verified by Standard Penetration Test(SPT), Pressure Meter Test(PMT) performed before, during and after construction of the stone columns. From the pressure meter test, estimation of critical embedded ratio to classify the failure mechanisms, critical and yielding pressure on treated and untreated ground is suggested.
Also deformation modulus of stone columns and untreated ground is suggested. The results indicated that the settlement of the treated foundation should be reduced to about 70 percent and the bearing capacity should be increased to about 60 percent comparing with the treatment.
Due to the non-homogeneity of refuse landfill, stress concentration factors were distributed in wild range.

목차 (Table of Contents)

• Ⅰ.序論
• Ⅱ.지반조건 및 침하해석
• 1.지반조건
• 2.지반의 침하분석
• Ⅲ.조립질 말뚝의 설계
• Ⅳ.시험결과분석
• Ⅴ.結論