scholarly journals Effects of Freeze-thaw History on Bearing Capacity of Granular Base Course Materials

2016 ◽  
Vol 143 ◽  
pp. 828-835 ◽  
Author(s):  
Shinichiro Kawabata ◽  
Tatsuya Ishikawa ◽  
Shuichi Kameyama
Keyword(s):  
Bearing Capacity ◽  
Freeze Thaw ◽  
Course Materials ◽  
Base Course ◽  
Granular Base

scholarly journals Effect evaluation of freeze-thaw history on bearing capacity of base course materials

2014 ◽  
Vol 9 (1) ◽  
pp. 1-13
Author(s):  
Shinichiro KAWABATA ◽  
Tatsuya ISHIKAWA ◽  
Shuichi KAMEYAMA
Keyword(s):  
Bearing Capacity ◽  
Effect Evaluation ◽  
Freeze Thaw ◽  
Course Materials ◽  
Base Course

scholarly journals EFFECTS OF FREEZE-THAWING ON BEARING CAPACITY OF GRANULAR BASE COURSE MATERIAL

2012 ◽  
Vol 68 (3) ◽  
pp. I_115-I_122
Author(s):  
Shinichiro KAWABATA ◽  
Tatsuya ISHIKAWA ◽  
Takumi MURAYAMA ◽  
Shuichi KAMEYAMA
Keyword(s):  
Bearing Capacity ◽  
Base Course Material ◽  
Course Material ◽  
Base Course ◽  
Granular Base

Stabilization of Weak Clay with Strong Sand and Geogrid at Sand-Clay Interface

1998 ◽  
Vol 1611 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Braja M. Das ◽  
Kim H. Khing ◽  
Eun C. Shin
Keyword(s):  
Bearing Capacity ◽  
Model Test ◽  
Soil Layer ◽  
Granular Soil ◽  
Laboratory Model ◽  
Test Results ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Base Course ◽  
Granular Base

The load-bearing capacity of a weak clay subgrade can be increased by placing a strong granular base course of limited thickness on top of the clay layer. The load-bearing capacity can be increased further, or the thickness of the granular base course can be reduced, by separating both layers by a geogrid. Laboratory model test results for the ultimate bearing capacity of a rigid strip loading on the surface of a granular soil underlain by a soft clay with a layer of geogrid at the interface of the two soils are presented. The optimum thickness of the granular soil layer and the critical width of the geogrid layer required to derive the maximum benefit from the reinforcement were determined. Model test results on the permanent settlement of the rigid strip load caused by cyclic loading of low frequency are presented.

Effect of Moisture Content on the Shakedown Limits of Base Course Materials

2020 ◽  
pp. 036119812095731
Author(s):  
Munir D. Nazzal ◽  
Louay N. Mohammad ◽  
Aaron Austin ◽  
Ahmad Al Hosainat
Keyword(s):  
Moisture Content ◽  
Triaxial Tests ◽  
Course Materials ◽  
Base Materials ◽  
Multi Stage ◽  
Base Course ◽  
Granular Base ◽  
Shakedown Limit ◽  
Elastic Shakedown ◽  
Plastic Shakedown

This paper summarizes the results of a laboratory testing program that was conducted to determine the effects of moisture content on the shakedown limits of unbound granular base materials. Two different types of granular base materials were investigated in this study, namely limestone and sandstone. Multi-stage repeated load triaxial tests were performed on these materials. The results of the tests were analyzed within the framework of the shakedown theory. The results indicate that the moisture content had an influence on the slope of the elastic and plastic shakedown limits lines. The effect of the moisture content was more pronounced on the slope of the elastic shakedown limit line, however. The moisture content affected the intercept of the elastic and plastic shakedown limits lines more significantly than the slope of these lines. The limestone material exhibited greater decrease in the intercept of the elastic and plastic shakedown limits with increase in moisture content compared with the sandstone material. This was explained by the limestone’s finer gradation.

scholarly journals Effect evaluation of freeze-thaw on resilient modulus of unsaturated granular base course material in pavement

2019 ◽  
Vol 21 ◽  
pp. 100284 ◽  
Author(s):  
Tatsuya Ishikawa ◽  
Tianshu Lin ◽  
Shinichiro Kawabata ◽  
Shuichi Kameyama ◽  
Tetsuya Tokoro
Keyword(s):  
Resilient Modulus ◽  
Effect Evaluation ◽  
Freeze Thaw ◽  
Base Course Material ◽  
Course Material ◽  
Base Course ◽  
Granular Base
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