PEYSANJ

© 2020 by Novo Tech Software. All Rights Reserved.

 PEYSANJ

Table of contents

About ............................................................................................................... 3
License Agreement ............................................................................................. 3
Licensing Help ................................................................................................... 3
Getting Started ... .............................................................................................. 3
Units System ..................................................................................................... 4
Contents ........................................................................................................... 4
Projects List ................................................................................................... 4
Main Screen ................................................................................................... 5
Engineering Analysis ...................................................................................... 7
Bearing Capacity & Settlement ..................................................................... 7
Theory (Bearing Capacity) ......................................................................... 11
Plate Loading Test .................................................................................... 12
Pressure-meter Test ................................................................................. 13
Simplified Slope Analysis .......................................................................... 14
Lateral Earth Pressure Coefficients .............................................................. 15
Stress Distribution .................................................................................... 16
Retaining Wall Pressure ............................................................................. 17
Ks Conversion .......................................................................................... 18
Calculation Details ........................................................................................ 19
Print Preview ............................................................................................... 19
Options and Settings .................................................................................... 21
Working with Charts ..................................................................................... 27
Export to Graphic Format .............................................................................. 27
Database Settings ......................................................................................... 27
Novo Tech Software Website ............................................................................. 28
Contact Us ....................................................................................................... 28

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About

PEYSANJ
PEYSANJ is a bundle of powerful geotechnical tools for bearing capacity and settlement
estimation, pressure meter and plate loading test analysis, lateral earth pressure analysis,
etc. For more information please visit our website.

Although all efforts have been undertaken to ensure that this software is of the highest possible
quality and that the results obtained are correct, the authors do not warrant the functions
contained in the program will meet your requirements or that the operation of the program will be
uninterrupted or error-free. The authors are not responsible and assume no liability for any
results or any use made thereof, nor for any damages or litigation that may result from the use of
the software for any purpose. All results to be verified independently by user.

Purchase full version About Novo Tech Software Inc

Update log Learn more about our other products
Program's web page Bug report / feature request
Terms and conditions of use Maintenance Plan

Vancouver, Canada

License Agreement

View our online End User License Agreement

Licensing Help

View our online Licensing Help

Getting Started ...

We recommend minimum 1024*768 screen resolution for using PEYSANJ.

If you are using the dongle key version, please make sure that it is plugged in before you
run the program.

To invoke the help, please press button on top-right corner of each page.

Make sure you prepare backup from your data periodically. Your database is
PEYSANJ4.MDB file (see more).

After each installation, please open the "Options" page and set the default parameters and
choose your favorite analyses methods. This is a very important step in PEYSANJ installation
and setup, otherwise you may end up with incorrect results.

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You can print, zoom, set the scales and do more with charts. To activate a chart, simply
double-click on it. A new dialog will appear which allows you to configure the look of the
chart as well as saving the chart as image files, printing the graph, etc.

Please contact us at support@novotechsoftware.com if you had any questions or

suggestions.

Units System

This version of PEYSANJ supports the following unit systems:

· Metric Asia (kg, cm)

· Metric US (kN, m)
· US Customary / Imperial (lb, ft, in)

You can set the unit system on the Options page.

Projects List
This page lists all the projects saved in the PEYSANJ database. This page can be accessed
from the Project ® Load from the top toolbar:

In order to load a project, first select the type of analysis (Bearing Capacity, Plate Load
Test, etc) from the top toolbar. Then simply select the project on the list and click on Load
Project button. You can also edit project information such as client name or address, etc.;
Please click on Save button to save the data before loading the project or closing this page.

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Deleting a Project
In order to delete a specific project, click on Delete Project link at the bottom-left of the
page. Please notice that this can not be reversed.

Print the Project List

In order to print the list of all projects, click on Print the Project List link at the bottom-left
of the page. This will show the print preview page.

Main Screen
This is the main page of PEYSANJ and provides so many features through the top menu-bar /
toolbar. Each part of this page is illustrated below:

Top Toolbar
The toolbar provides you the access to load/save projects, performing the calculations,
accessing the help file, etc. Different tabs are illustrated in the following sections:

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Project tab

Engineering Analysis tab

Tools / Options tab

Help tab

Body
Most of the PEYSANJ analyses are opened in this part of the page. Multiple pages can be
opened in this part of the screen.

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Status-bar
This is located at the bottom of the screen and provides you more information about the
program version, license holder information and selected units system.

Engineering Analysis
Various types of engineering analysis are available via Engineering Analysis tab of the top toolbar:

Bearing Capacity & Settlement

This module is used to calculate allowable bearing capacity of shallow foundations with
simultaneously checking both shear failure and settlement. Each part of this page is explained
below.

Note: Please read this article to see how PEYSANJ carries out bearing capacity analysis.

Project Information
From the top toolbar, select the Project tab, then click on Project button.

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On this page, please enter project title, client name, project code, etc. This data will be
shown on the reports.

Soil Layers Table

Your stratigraphy model may contain unlimited soil layers. Please specify the following
parameters for each layer:

· Soil Layer: simple description for layer. This field is only for user's information and does
not have any effect on bearing capacity analysis
· C: Coefficient of cohesion.
· F (deg): Internal angle of friction (between zero and 45 degrees).
· Es: Modulus of elasticity.
· v: Poisson ratio (between zero and 0.5).
· g: Total unit weight.
· Z1: top depth of the layer.
· Z2: bottom depth of the layer. There should be no gap between layers, so Z1 for this
layer should be same as Z2 for layer above. For the last layer use a very large number
like 1000m to assure that stress bulb would not pass the bottom of your model.
· Su: Undrained shear strength. This parameter should only be entered when F=0; based
on Hanson bearing capacity theory, when F=0 then Su will be considered for shear
failure analysis.
· Cc , Cs: Consolidation compression and re-compression indexes. They should only be
entered when you want the consolidation settlement to be calculated for this layer. If
these parameters are entered but water level is below this layer, unsaturated
consolidation settlement will be calculated for this layer (Suunsaturated=Susaturated*a
where a is a factor less than one). You may specify 'a' in the "Analysis Parameters"
frame.
· Pc: Pre-consolidation stress for consolidation settlement.
· eo: Void ratio.
· Pre-consolidated: Select this checkbox if the clay layer is pre-consolidated.

To delete a soil layer, select the corresponding row and press SHIFT + DELETE on your
keyboard.

If there is bedrock in your subsurface model, enter only the soil layers; When program

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computes the stress bulb, no settlement will be calculated below the model.

We recommended you save the data periodically to avoid data loss.

In this section, ground water level and wet unit weight for soil above the foundation level
should be specified. Please notice that ground water level is measured from underneath the
footing (always positive number).

Analysis Settings
This section contains the main parameters that are used for bearing capacity analysis:

· Allowable Settlement: this is usually one inch (25.4mm) for pad/strip footings.
· Er/Es: is the ratio of modulus of elasticity of re-loading (Er) to loading (Es) part. The
best way to estimate the Er is to conduct a Plate Loading Test; at the beginning of the
second cycle of a Plate Loading Test, the slope of the stress-deformation curve (Er) is
much sharper than the normal slope of the curve (Es). PEYSANJ uses this Er/Es ratio to
apply the stress history effect on the elastic settlement. For example, if your footing
Df = 3 ft and g=115 pcf then g.Df=345 psf; So during elastic settlement analysis,
PEYSANJ will use Er for stress range 0 to 345 psf and thereafter, Es will be used for
estimation of settlement.
· Rigidity Factor (Ir): This factor is less than zero and depends on rigidity of the footing
(usually 0.9 to 1). PEYSANJ applies this factor to the total settlement of the footing
S=(Se+Sc)*Ir where Se and Sc are elastic and consolidation settlements,
respectively.
· a Factor: this factor is used for calculation of un-saturated consolidation settlement. If a
fine-grained layer is unsaturated (e.g. S=80%), then the actual consolidation
settlement is a fraction of calculated saturated consolidation settlement.
· Safety Factor: this parameter is applied to the estimated ultimate shear failure of the
soil present below the footing.

Foundation Size
· Shape: you may choose among "Pad/Strip", "Raft/Spread/Mat" and "Circular"
foundations.
· Size Ratio (L/B): is used to specify the length to width ratio of the footing.
· Df : is the height of the soil around and above the footing (affects the shear failure).
· D : depth of placement of the foundation (usually depth of excavation).
· MB, ML: The bending moment applied on the footing.
· HB, HL: The horizontal forces applied to the footing.
· V : The vertical force applied on the footing.

Note : For raft foundations, consider Df and D same as the excavation depth.

Calculating
Please press Calculate button on the top toolbar (Project tab) once the input parameters are
entered.

Pad/Strip Footings Outputs

For this type of footings, two charts are presented:

Bearing Capacity Graph: Includes 3 curves; for all of them vertical axis is the allowable
stress and horizontal axis is the foundation width (B); please note that, you have already
entered L/B ratio so as B increases, the chart covers various foundation sizes:

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· Shear Failure Curve (blue): Only encompasses the shear failure criteria for the
model.
· Allowable Settlement Curve (purple): This curve shows the allowable stress,
provided that the total settlement is around the allowable settlement already
introduced by the user.
· Allowable Bearing Capacity Curve (green): This curve is the lower intersection of
two above-mentioned curves and assures that on each point along the curve, both
settlement and shear failures are within the allowable limits.

Settlement Graph: This includes 3 curves representing Immediate (elastic), Consolidation

and Total settlements. Please be advised that these settlement values are calculated based
on the resulting allowable bearing capacity calculated for each specific footing size. See how
PEYSANJ conducts bearing capacity analysis.

Raft Foundation's Output

For raft foundations since the footing size is considerable,
shear failure is typically not governing the design, and
restricting the settlement to allowable settlement will
control the bearing capacity. Based on user-defined allowable settlement for the footing, the
corresponding allowable stress is picked from the settlement plot and is shown on a box.

Exporting the Results to Microsoft Excel

Click on the Excel tab in the bearing capacity page. This will generate an Excel file containing
all Allowable bearing capacity and settlement values for various L/B ratios and different
foundation widths (B). The width range and L/B ratios can be specified in the Option page.

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1. To generate the Excel file, please click on "Export to Excel" button on Excel tab. This
will take few minutes to prepare the file. Please be patient.
2. When you prompt to open the Excel file, please select Yes. When Excel
opens the file click on the tabs below the page to view the charts or
calculation summary.
3. You can easily copy and past all charts into your other Windows
applications (such as Word). please click on top-left corner of charts
and right-click. Then choose Copy from the popup menu. Now you just need to paste
the chart into your destination program (such as Word).

Printing the Results

Press Print button from the toolbar to see the calculation details and the report.

Theory (Bearing Capacity)

For strip and pad footings, PEYSANJ calculates both shear failure and settlement criteria for a
range of footing widths (i.e. B1 to B2). At each footing size:

1- Shear Failure: The allowable bearing pressure based on shear failure (s1) is calculated.
2- Settlement: For settlement control, stress is increased from zero to s1 (calculated
above) with Ds increments. At each step, settlement is calculated and compared with the
allowable settlement specified by user. Once the settlement has met the user's criterion, this
stress (s2) is recorded as the allowable stress based on settlement.

3- Allowable Stress: Then s1 and s2 are compared at each footing size, and minimum of
these two values is introduced as the allowable bearing capacity.

For spread (mat) foundations, however, due to relatively larger footing size, shear failure will
not be a limiting criterion. Therefore settlement of the footing is calculated and plotted
versus stress. This stress can be set by user to vary from s1 to s2 with Ds increment
specified by user. This procedure can be configured by user through Options page.

Shear Failure Analysis

PEYSANJ performs bearing capacity analysis of the footings based on Hansen equations,
which is a modified version of original Terzaghi bearing capacity. The effect of water level in
bearing capacity is taken into account using the method recommended by Braja M. Das in the
book "Principles of Foundation Engineering" (6th Edition), Section 3.5 titled "Modification of
Bearing Capacity Equations for Water Table".

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Settlement Analysis
Three methods can be chosen for elastic (immediate) settlement calculation of footings. For
further reference and detailed description of each methodology please refer to reference
books. For the purpose of calculating 1-D Terzaghi consolidation settlement, stress increase
dP is calculated at the top, middle and the bottom of the layer and an average is calculated
d Pave =(d pt+4d Pm +d Pb)/6

If "Goodier and Timoshenko" method is used for elastic settlement calculation, then stress
influence depth H should be calculated first. In this section user can choose how H is
calculated. Usually H is taken as the depth in which d P is reached a certain percentage of
the stress below footing, where this percentage can be defined by user in Options page.

In general, the total settlement is defined as below in PEYSANJ software:

S = Ir (Se+a .Sc)
where:

Ir : Rigidity factor (between zero and one; usually more than 0.9). The idea is to allow a rigid
foundation to decrease the total settlement due to its ability to uniformly spread the stress.
Se : Elastic settlement
Sc: Consolidation settlement
a : User can specify what percentage of consolidation settlement should be considered in the
total settlement calculation. The default value is 1. However, user can choose a lower value
if the layer is not saturated to account for lower moisture contents in clay/silt layer:

Plate Loading Test

This page is designed for calculating plate loading test. Please enter all 3 settlement gauge
readings and press Calculate button from the top toolbar. Modulus of subgrade reaction for
each cycle of loading-unloading will be calculated separately and will be presented in the
table.

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Printing the Results

Press Print button from the toolbar to see the calculation details and the report.

Pressure-meter Test
This page is designed for calculating pressure meter test. Please enter calibration data and
test data (including pressure and volume pairs); then press Calculate button from the top
toolbar. Menard modulus (Em) and limit pressure (PL) will be calculated and presented in the
table.

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Printing the Results

Press Print button from the toolbar to see the calculation details and the report.

Simplified Slope Analysis

Using this page user can roughly estimate the stable slope based on the design chart
proposed by Fang et al. This chart is prepared based on a series of limit equilibrium analyses,
and should be only used as a rough estimate since it does not take many parameters such as
groundwater level, surcharge, etc. into consideration.

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Soil and Slope Parameters

Enter friction angle, unit weight and cohesion of soil along with slope height and backslope
angle. Please notice that safety factor will be applied on Tan(F). Press Calculate button
when you entered all data.

Stability Factor and b

Ns or stability factor is calculated based on slope height (H), soil unit weight (g ) and soil
cohesion (C) as shown below:

This parameter is a key factor for estimating the angle of slope stability. Ns is interpolated
from the results of a series of limit equilibrium slope stability analyses carried out by Fang et
al. (see below).

Lateral Earth Pressure Coefficients

You can calculate lateral earth pressure coefficients in static and earthquake conditions

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using this page.

Wall Geometry and Soil Data

Please enter the soil parameters and geometry as specified in the legend and press Calculate
button.

Static Conditions (Rankine Method)

Ka=Tan(45 - F/2)2

Ko=1-Sin(F)

Kp=Tan(45 + F/2)2

Earthquake Conditions (Mononobe/Okabe Method)

Horizontal and vertical acceleration ratios of the earthquake:
Kh=ah/g, Kv=av/g

Kae : Active earthquake pressure coefficient

Kpe : Passive earthquake pressure coefficient

Earthquake Conditions (Mononobe & Okabe)

To use this charts please choose the curve corresponding your Kv. Then find the desired Kh
from horizontal axis and follow the curve to get the K values from the vertical axis.

Stress Distribution
Using this feature to calculate distribution of the stress below the footing, according to
'Westergaard' or '2:1 Slope' methods. The input data comprises footing size and load (bearing
pressure):

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Printing the Results

Press Print button from the toolbar to see the calculation details and the report.

Retaining Wall Pressure

Use this feature to calculate the distribution of the lateral earth pressure behind a retaining
wall, due to a surcharge load. This surcharge can be 'line load' or 'strip load'. The input data
comprises retaining wall information, backfill information and the load type:

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Printing the Results

Press Print button from the toolbar to see the calculation details and the report.

Ks Conversion
This page is used for conversion and correction of Ks30 resulted from the plate load test:

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Ks Correction
Due to thickness/stiffness of the steel plate used in the plate loading test, the resulted Ks30
is recommended to be corrected for the stiffness of the plate. The chart shown on the left
portion of the page is used for correction of Ks30. Please enter your test Ks30 in the box
below the chart and press Calculate button to get the corrected Ks30.

Ks Conversion
This part of the page uses the common formulas for converting Ks30 to your desired footing's
size. Different equations are used based on the subgrade soil type.

Calculation Details
All calculations in PEYSANJ come with step-by-step calculation details. Please press
Calculation Details button on the top toolbar after performing the calculations. This will open
another page containing the calculation details. If you want to print a report, click on Print
button on the top toolbar; This will open the Print Preview page. A report comprises:

· Cover page
· Assumptions: including all input data and other applicable assumptions
· Details: including step-by-step details of the calculations
· Graphs: including all graphs

The report may be saved and exported to various formats such as Microsoft Excel, PDF, etc.

Print Preview
This page will be shown when you click on Print button from the toolbar. Different parts of
the page are described below:

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Thumbnail Preview
Shows a set of thumbnails for all pages of the report. Click on each thumbnail to open that
page of the report in the Body part of the page.

Body
Is used to show the full preview of the specific page of the report. Please use the toolbar
buttons to zoom in/out, save, print, etc

Toolbar
This toolbar located on top of the page and its buttons are described below:

Opens a report file which is already saved

under c1d format
Is used to save the current report with XLS,
PDF, HTML, or even image formats such as
JPG, BMP, TIFF, PNG, etc. Some limitations
apply to this feature.
Used to adjust the page setup such as
margins, etc.

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Click on this button to print the report

This will redraw the whole report again

Sets the view of report by showing 1, 2 and
4 pages of the report within the Body part of
the viewer.
Used to navigate among the report pages.
Enter the exact page number in the box to
jump to that page.
Used for zoom
Used for pan (moving the preview page).
Hold your left mouse button and move the
page.
If you click on this button, you will be able
to select a text within the report. This
feature can be used to copy a text from the
report for use in another Windows application
such as Microsoft Word.
Use this button to find a phrase in the
report.

Search Panel
Enter the searching phrase in this panel and click the Search button. A list will be populated
with all pages containing your search criteria. Click on each item to browse to that page.

Options and Settings

The Options page provides access to analysis settings and default values used during the
calculations and analyses. As shown in the following screenshot, settings are grouped into
three tabs:

Bearing Capacity tab

This tab allows user defining the analysis methods used for the calculation of bearing and
settlement. For strip and pad footings, PEYSANJ calculates both shear failure and settlement
criteria for a range of footing width. For each footing size, the allowable bearing pressure is
calculated based on shear failure (s 1).

For settlement check, the program starts checking settlement for stress values starting from
zero to s 1, with a Ds increment. The stress corresponding to the tolerable settlement
(defined by user) will be recorded as s 2.

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Then s1 and s2 are compared for each footing size, and the minimum of these two values is
introduced as the final allowable bearing capacity.

For spread (mat/raft) foundations, due to relatively larger footing size, shear failure will not
be a limiting criterion. Therefore settlement of the footing is calculated and plotted versus
stress. This stress can be set to vary from s1 to s2 with ds increment. The following sections
describe how this procedure can be configured by user:

Shear Failure
PEYSANJ calculates bearing capacity of the footings based on Hansen (modified Terzaghi)
equations.

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Strip / Pad Footing

From: the minimum footing width (B1) used for bearing capacity and settlement calculation
To: the maximum footing width (B2) used for bearing capacity and settlement calculation
D: the width step used for calculation
Ds: the stress increment used for calculation
Excel L/B: a list of L/B ratios is entered. PEYSANJ will calculate and export to Excel, the
bearing capacity for all these L/B values. Please enter maximum five L/B values, separated by
comma.

Spread (raft) Footing

s1: the minimum stress for which settlement of foundation is calculated
s2: the maximum stress for which settlement of foundation is calculated
Ds: the stress increment used for calculation

Apply Rb in the 3rd Term

If this option is selected selected Rb = 1 - 0.25 Log(0.5B) will be applied to the 3rd term of
Hansen bearing capacity formula.

Settlement tab
On this tab of the Options page, you can specify the methods used for calculation of
settlement:

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Settings
If "Goodier and Timoshenko" method is chosen for elastic settlement calculation, then stress
influence depth H should be calculated first. In this section user can choose how H is
calculated. Usually H is taken as the depth in which d P is reached X percent of the stress
below footing, where X can be set by user on this page.

Stress Distribution Methods

User can set the stress distribution methods for calculation of elastic and consolidation
settlements.

Settlement Calculation Methods

Elastic: Three methods can be chosen for elastic (immediate) settlement calculation of
footings. For further reference and detailed description of each methodology please refer to
reference books.
Consolidation: for the purpose of calculating 1-D Terzaghi consolidation settlement, stress
increase dP is calculated at the top, middle and the bottom of the layer and an average is
calculated d Pave=(d pt+4d Pm+d Pb)/6

Ignore Elastic Settlement : If this options is selected by user, during the calculation of
total settlement of the footing, if consolidation settlement is calculated for a layer, the
elastic settlement will be ignored in calculation of total settlement. In general, the total
settlement is defined as below:

S = Ir (Se+a .Sc)
where:
Ir : Rigidity factor (between zero and one; usually more than 0.9). The idea is to allow a rigid
foundation to decrease the total settlement due to its ability to uniformly spread the stress.
Se : Elastic settlement
Sc: Consolidation settlement
a : User can specify what percentage of consolidation settlement should be considered in the
total settlement calculation. The default value is 1. However, user can choose a lower value
if the layer is not saturated to account for lower moisture contents in clay/silt layer.

Pressure-Meter tab
This tab allows user defining the analysis methods used for the calculation of liquefaction and
pressure-meter test. Here is a list of default probes used for pressure-meter test. User can
expand this list by adding more probes to the list.

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Advanced tab
This tab allows user to configure and prepare backup from PEYSANJ database file, as well as
choosing the user-interface language and units.

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Database
Please see this article for help on Database Settings.

Custom Settings
Although not every user may use this feature, it is possible to edit custom.txt file (copied in
the PEYSANJ installation folder) and change the value of these two parameters:
ignore_depth_factors : If set to True, all depth factors will be considered =1 during bearing
capacity analysis.
ignore_fox_index_if : If set to True, the Fox factor (If) used for reduction of settlement in
Goodier & Timoshenko method, will be assumed =1 during settlement analysis.

Company Information
This allows user to select company logo, enter address and company name. This information
is used in the reports.

View Activity Log

This will show a list of user activities such as Save, Delete, Print, etc. during working with
the program.

Language
Currently, user interface is only available in English language.

Units
Three unit systems are available in PEYSANJ. Select your units and re-start the program for

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this setting to take effect.

Working with Charts

Please read the most up-to-date article from our website.

Export to Graphic Format

Please read the most up-to-date article from our website.

Database Settings
PEYSANJ database is a Microsoft Access file stored in the path shown by "Access database
path" in the Advanced tab of the Options page. Your project data for bearing capacity
analysis, plate loading test analysis, and pressure-meter test analysis is saved in a database
file. It is very important to prepare periodic backups of your database file.

Preparing a Backup of Your PEYSANJ Database

Click on Backup Database button and specify the location on your hard drive where you want
the backup file (PEYSANJ4.MDB) to be copied. When the backup file is prepared, simply
copy it to your flash drive, burn on CD, etc. and keep in a safe place.

Restoring PEYSANJ Database

If you are transferring PEYSANJ to another computer, or recovering from a computer crash,
you may want to restore your PEYSANJ database to be able to load the old projects. If you
want to restore a database, click on Restore Database! button, and select the database file
(this is the file already backed up by you). This will replace the existing database file.

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Novo Tech Software Website

Visit our website at http://www.novotechsoftware.com

Contact Us

Send a support request at http://www.novotechsoftware.com/contact-us/

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