Abstract

Laboratory model test results are presented for the ultimate bearing capacity of a strip foundation supported by a saturated clay layer reinforced by layers of geogrid. The tests were conducted in one type of clay. The average moisture content of the clay was varied, yielding varying undrained shear strengths. Laboratory tests were conducted to determine the critical nondimensional values for the depth and width of the geogrid reinforcement layers and also the location of the first layer of geogrid with respect to the bottom of the foundation to obtain the maximum possible bearing capacity ratio.

Issue Section:
Technical Notes
Keywords:
clays, bearing capacities, bearing capacity ratio, geogrid, strip foundation, undrained shear strength

References

1.
Dawson
,
A.
 and
Lee
,
R.
,
1988
, “
Full Scale Foundation Trials on Grid Reinforced Clay
,” Geotechnical Special Publication No. 18,
ASCE
,
New York
, pp.
127
-
147
.
2.
Guido
,
V. A.
,
Chang
,
D. K.
, and
Sweeny
,
M. A.
,
1986
, “
Comparison of Geogrid and Geotextile Reinforced Slabs
,”
Canadian Geotechnical Journal
 0008-3674, Vol.
23
, No.
4
, pp.
435
-
440
.
Google Scholar
Crossref
Search ADS
 
3.
Ingold
,
T. S.
 and
Miller
,
K. S.
,
1982
, “
Analytical and Laboratory Investigation of Reinforced Clay
,”
Proceedings
,
2nd International Conference on Geotextiles
, Vol.
3
,
Las Vegas
, pp.
587
-
592
.
4.
Khing
,
K. H.
,
Das
,
B. M.
,
Puri
,
V. K.
,
Cook
,
E. E.
, and
Yen
,
S. C.
,
1993
, “
Bearing Capacity of Strip Foundation on Geogrid-Reinforced Sand
,”
Geotextiles and Geomembranes
, Vol.
12
, No.
4
, pp.
351
-
361
.
Google Scholar
Crossref
Search ADS
 
5.
Mandal
,
J. N.
 and
Sah
,
H. S.
,
1992
, “
Bearing Capacity Tests on Geogrid-Reinforced Clay
,”
Geotextiles and Geomembranes
, Vol.
11
, pp.
327
-
333
.
Google Scholar
Crossref
Search ADS
 
6.
Milligan
,
G. W. E.
 and
Love
,
J. P.
,
1984
, “
Model Testing of Geogrids Under an Aggregate Layer on Soft Ground
,”
Proceedings
,
Symposium on Polymer Grid Reinforcement in Civil Engineering
,
Netlon, London
, Paper No. 4.2.
7.
Omar
,
M. T.
,
Das
,
B. M.
,
Yen
,
S. C.
,
Puri
,
V. K.
, and
Cook
,
E. E.
,
1993
, “
Ultimate Bearing Capacity of Rectangular Foundations on Geogrid-Reinforced Sand
,”
Geotechnical Testing Journal
 0149-6115, ASTM, Vol.
16
, No.
2
, pp.
246
-
252
.
8.
Vesic
,
A. S.
,
1973
, “
Analysis of Ultimate Loads on Shallow Foundation
,”
Journal of the Soil Mechanics and Foundations Division, ASCE
, Vol.
99
, No.
SM1
, pp.
45
-
73
.
This content is only available via PDF.
All rights reserved. This material may not be reproduced or copied, in whole or in part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ASTM International.
You do not currently have access to this content.