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Mohr's Circle plot
Shear stress and normal stress results as obtained from laboratory C.U. or
U.U. or C.D. test will be used in plotting the Mohr's Circle. Use of optional
tangent drawing feature enhances the accuracy with neatness and provides the
user to obtain the c and j values. A maximum of 4 sets of plot with
customisation as per user's choice can be accommodated on one report sheet.
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Load-Settlement Curve
Plate load test results (load vs. settlement) can be plotted on plain graph
through this feature. User can provide unlimited annotation to comment on the
curve. Vertical load capacity of pile can also be plotted through this
option. Configuration menu helps in generating customized view of the plot.
All the required field test data are automatically labeled against each plot.
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Auto-generation of Bore Log
Sub-surface investigation results for each borehole/drill with all required
field data can be presented in the report by the use of this option.
Encountered soil strata description with hatching as per IS code is also
available. Borelog data sheet can be generated and viewed for several pages,
if the depth of bore hole is not accommodated in a single page.
Editing/modification menus allows one to produce his own Borelog. User can
select the headings suitable for his drill/borelog.
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Grain Size Distribution Curve
Results of sieve analysis or hydrometer test can be plotted through this
option. Distribution of the total soil sample amongst various categories will
be computed by software. The program is capable of calculating the D10, D30,
D60, Uniformity Coefficient and Coefficient of Curvature etc. values
automatically and tabulating them in the plot. Maximum of 6 curves with
different legend marking can be plotted in one page. Use of Configuration
feature will enable the user in producing his customized S-Curve.
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Sub Soil profile through Bore hole plotting
Sub-soil profile can be easily depicted through plotting of various soil
layers available on different bore-holes. All the soil strata will be hatched
and classified as per IS code. Additionally user can use his own annotation
to label the soil strata with observed and test results. Maximum of 8 such
bore hole data can be plotted in a single report page. Width and position of
each bore-hole can also be mutually adjusted.
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e-Log-p Curve
Consolidation Test results can be plotted to obtain pressure-void ratio
curve. As an additional tool computation of coefficient of volume compressibility
(Mv) is also possible in this software. Void ratio values generated through
the process of computing Mv, can also be used in the plot, if someone so desires,
instead of supplying the void ratio directly. Optional use of Tangent drawing
feature enables one to find out judiciously, as per his technical expertise,
Compression Index (Cc) and Pre-consolidation pressure.
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Benkelman Deflection Data
Benkelman deflection for Road projects involves a lot of critical calculation
which is very time-consuming. CASTeR provides an easy solution to this
problem. It can compute all the critical calculation with great ease and
present the data as per IRC norms.
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Auto generation of Lab-Sheet
Laboratory Test results for each and every sample tested need to be presented
in a report. It can be carried out easily with this feature. User has the option
of creating his own format for including test results. Several consecutive
pages can be used for this purpose, which is controlled by the software for
viewing, saving, printing etc. Easy to use windows features are also
available.
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Depth vs. N plot
Observed Static Cone Penetration test values in a bore hole at field can be
plotted against depth of sampling through this module. User has the choice of
selecting intelligent scaling or fixed scaling as per the range of SPT
values. A maximum of 8 such set for 8 nos. boreholes with separate legend
allotted to each can be put together in a single page. All the required field
data are automatically labeled. In addition to this user can create his/her
own customized plot through the use of Configuration option. Proper use of
unlimited annotation will enhance the importance of this plot.
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Depth vs. Liquid Limit plot
Liquid limit of samples collected from a bore hole as obtained from
laboratory test can be plotted against depth of sampling through this module.
User has the choice of selecting intelligent scaling or fixed scaling as per
the range of Liquid limit values. A maximum of 8 such set for 8 nos.
boreholes with separate legend allotted to each, can be put together in a single
page. All the required field data are automatically labeled. In addition to
this user can create his/her own customized plot through the use of
Configuration option. Proper use of unlimited annotation will enhance the
importance of this plot.
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Depth vs. Corrected Cone Resistance plot
Corrected Cone Resistance values as obtained at site can be plotted against
depth of sampling through this module. Maximum of 150 sets of data can be
input for each plot. User has the choice of selecting intelligent scaling or
fixed scaling as per the range of Cone Resistance values. A maximum of 8 such
set for 8 nos. boreholes with separate legend allotted to each, can be put
together in a single page. All the required field data are automatically
labeled. In addition to this user can create his own customized plot through
the use of configuration option. Proper use of unlimited annotation will
enhance the importance of this plot.
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Sq. Root of Time Fitting Plot
Determination of Coefficient of Consolidation (Cv) as suggested by Taylor is
accomplished through this method by plotting Dial gauge Reading for
compression of the specimen, as ordinate for any pressure increment in the
consolidation test, with Sq. root of time as abscissa. Using either manual or
guided extrapolation of the curve straight part, one can easily determine Cv
with extreme accuracy and in a very short time. A maximum of 2 plots in a
report sheet is possible to be drawn.
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Settlement Calculation
Settlement analysis of a foundation resting on a firm layer is to be computed
from this module. I.S. code method along with other standard conventional
methods have been adopted for the purpose of computation, as per the choice
of user. 2:1 method or Bousinesq method can be followed as per selection of
user to find out the Stress distribution. Detailed manual calculation in a
well formatted page layout will be available at the end for the purpose of
viewing, printing etc. These calculations are transferable to word processor.
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Bearing Capacity Calculation
Computation of bearing capacity is a very tedious job. One can have this
lengthy process, of finding bearing capacity as per IS code, reduced to a few
simple mouse clicks. All the considerations are being taken up automatically
by the software. Even, for same type of soil, allowable bearing capacity
values can be computed for a large nos. of footing size through RANGE option.
Very nicely formatted sample manual calculation sheets are automatically
generated which may be saved, preview for printing and can be printed also
from the software. Forth coming version will include a detail comparative
statement for bearing capacity computed as per the guide lines thrown by
different renowned geotechnical experts. These calculations are transferable
to word processor.
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Depth vs. Bulk Density plot
During soil test several borehole results are compared for the bulk
density at different depths of the soil. CASTeR under the Depth vs. Misc.
menu has the provision of drawing the depth vs. bulk density plot can be customized
according to the user's choice. Maximum of 2 plots per page can be drawn.
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Depth vs. Moisture Content plot
The plot gives the graphical presentation of the variation of the
moisture content with increasing depth of the soil layers. The plot can be customized
according to the user's choice. Maximum of 2 plots per page can be drawn.
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Depth vs. Plastic Limit plot
The plot gives the graphical presentation of the variation of the Plastic
Limit with increasing depth of the soil layers. The plot can be customized
according to the user's choice. Maximum of 2 plots per page can be drawn
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Depth vs. Mv plot
The plot gives the graphical presentation of the variation of the Mv
value with increasing depth of the soil layers. The plot can be customized
according to the user's choice. Maximum of 2 plots per page can be drawn
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Depth vs. Cc plot
The plot gives the graphical presentation of the variation of the Cc with
increasing depth of the soil layers. The plot can be customized according to
the user's choice. Maximum of 2 plots per page can be drawn
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Depth vs. Undrained cohesion (Cu) plot.
The plot gives the graphical presentation of the variation of the Cu with
increasing depth of the soil layers. The plot can be customized according to
the user's choice. Maximum of 2 plots per page can be drawn
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Depth vs. Corrected Frictional Resistance plot.
The plot gives the graphical presentation of the variation of the Corrected
Frictional Resistance with increasing depth of the soil layers. The plot can
be customized according to the user's choice. Maximum of 2 plots per page can
be drawn
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Pressure Meter Test
The plot gives the graphical presentation of the change in volume with
increasing pressure applied to the soil .According to the field test data and
the probe data the results of the change in volume and creep volume are
tabulated below the graphical presentation The plot can be customized
according to the user's choice. Maximum of 2 plots per page can be drawn
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Computation of Mv from laboratory test results
The oedometer test carried out in the laboratory enables one to compute the
value of Mv. For this if the pressure vs. dial gauge reading are provided
from the test result ,Caster has the provision of drawing the graphical
representation of the data .The void ratio is calculated from the data and
the value of the Mv is determined. A Maximum of 2 curves can be plotted per page.
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Pile Capacity Calculation with graphical presentation
Compressive load carrying Capacity of circular pile may be computed
through this feature. Additional facility of finding the lateral capacity is
also available. This computation of pile capacity is done as per IS method
with the provision of using user's own data for reduction factors etc.
Graphical representation of this pile, depicting each layer strength, enables
one to understand better behavior of the pile.
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OMC
The Proctor test gives the data of the dry density for the respective water
content and the test result can be plotted to give the Optimum Moisture
Content and also shows the Air Voids Line.
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Depth vs. LL-w-PL
Liquid Limit, Plastic Limit and Water content are three very important
properties of a soil sample and the nature of their variation can be used to
predict the nature of the soil. The data can be represented graphically and
the soil consistency and other properties can be analyzed.
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California
Bearing Ratio (CBR)
It is a small-scale penetration test developed to predict the behavior of
subgrade soils and of paving materials in terms of an empirical parameter
known as California Bearing Ratio (CBR). In CASTeR the test results (load vs.
penetration) can be inserted in the CBR dialog box and additional information
about the sample no. etc. can be provided to generate a comprehensive report
with the plots shown giving the CBR values and all the relevant details of
the test.
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Under-reamed Piles
Of the various methods of foundation design in expansive soils, the pile and
beam construction with the pile going down to and anchored in the zone of
inappreciable movement is a very popular method. The bored cast-in-situ piles
having their lower portions enlarged are known as under -reamed piles. CASTeR
can calculate the pile capacity of under-reamed piles with the information
regarding the bulb diameter and their levels being given and also the soil
properties being known.
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