a)Determine the coefficients of uniformity, Cu and curvature Cc for soils A, B, and C. (Done in Lecture 3 tutorial!) 5) Determine the different percentages of particle sizes available in each soil (e.g. %G, %S, %M, %C) ) Determine the LL and PL of Soil D

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Tutorial (Cont.)
Using the particle size distribution curves plotted
previously and Atterberg limits results:
a)Determine the coefficients of uniformity, Cu and curvature
Cc for soils A, B, and C. (Done in Lecture 3 tutorial!)
b) Determine the different percentages of particle sizes
available in each soil (e.g. %G, %S, %M, %C)
c) Determine the LL and PL of Soil D
Transcribed Image Text:Tutorial (Cont.) Using the particle size distribution curves plotted previously and Atterberg limits results: a)Determine the coefficients of uniformity, Cu and curvature Cc for soils A, B, and C. (Done in Lecture 3 tutorial!) b) Determine the different percentages of particle sizes available in each soil (e.g. %G, %S, %M, %C) c) Determine the LL and PL of Soil D
Table 2
British Soil Classification System for Engineering Purposes
Soil groups
GRAVEL and SAND may be qualified
sandy GRAVEL and gravelly SAND.
etc., where appropriate
Subgroups and laboratory identification
Subgroup
symbol
Fines
(% less
than
0.06 mm)
Group
symbol
Liquid
limit
Slightly silty or
GW
GW
clayey GRAVEL G
GP
GPu GPg
O to 5
Silty GRAVEL
G-MGWM GPM
Clayey GRAVEL
G-F
G-C GWC GPC
5 to 15
GM
GF
GC
Very silty GRAVEL
GML, etc
15 to 35
GCL
GCI
GCH
GCV
GCE
Very clayey
GRAVEL
Slightly silty or
clayey SAND
Sw
SW
O to 5
SP
SPu SPg
SWM SPM
swc SPC
Silty SAND
S-M
S-F
S-C
5 to 15
Clayey SAND
Very silty SAND
SM
SML, ete
SF
SC
15 to 35
SCL
SCI
SCH
SCV
SCE
Very clayey SAND
MG
FG
CG
Gravelly SILT
MLG, etc
CLG
CIG
CHG
CVG
CÉG
Gravelly CLAY
<35
35
50
50 to 70
70 to 90
>90
MS
FS
CS
Sandy SILT
MLS, ete
Sandy CLAY
CLS, etc
SILT (M-SOIL)
M
F.
ML, ete
CLAY
<35
50 to 70
70 to 90
-90
ORGANIC SOILS Descriptive letter O' suffixed to any group or
subgroup symbol
Pt
PEAT
Suos ANIH
more than 35% of the material
COARSE SOILS
less than 35% of the material
is finer than 0.06 mm
is finer than 0.06 mm
SILTS AND
CLAYS
Gravelly or sandy
SILTS and CLAYS
SANDS
GRAVELS
More than 50% of coarse
material is of gravel size
(coarser than 2 mm)
material is of sand size
(fincr than 2 mm)
sauy %9 o1 %SE
Transcribed Image Text:Table 2 British Soil Classification System for Engineering Purposes Soil groups GRAVEL and SAND may be qualified sandy GRAVEL and gravelly SAND. etc., where appropriate Subgroups and laboratory identification Subgroup symbol Fines (% less than 0.06 mm) Group symbol Liquid limit Slightly silty or GW GW clayey GRAVEL G GP GPu GPg O to 5 Silty GRAVEL G-MGWM GPM Clayey GRAVEL G-F G-C GWC GPC 5 to 15 GM GF GC Very silty GRAVEL GML, etc 15 to 35 GCL GCI GCH GCV GCE Very clayey GRAVEL Slightly silty or clayey SAND Sw SW O to 5 SP SPu SPg SWM SPM swc SPC Silty SAND S-M S-F S-C 5 to 15 Clayey SAND Very silty SAND SM SML, ete SF SC 15 to 35 SCL SCI SCH SCV SCE Very clayey SAND MG FG CG Gravelly SILT MLG, etc CLG CIG CHG CVG CÉG Gravelly CLAY <35 35 50 50 to 70 70 to 90 >90 MS FS CS Sandy SILT MLS, ete Sandy CLAY CLS, etc SILT (M-SOIL) M F. ML, ete CLAY <35 50 to 70 70 to 90 -90 ORGANIC SOILS Descriptive letter O' suffixed to any group or subgroup symbol Pt PEAT Suos ANIH more than 35% of the material COARSE SOILS less than 35% of the material is finer than 0.06 mm is finer than 0.06 mm SILTS AND CLAYS Gravelly or sandy SILTS and CLAYS SANDS GRAVELS More than 50% of coarse material is of gravel size (coarser than 2 mm) material is of sand size (fincr than 2 mm) sauy %9 o1 %SE
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