Terms & Conditions

Contents

Software Licensing Terms

Data Security

Website Terms and Conditions


Software Licensing Terms

Terms and Conditions of Purchase

The full conditions of purchase and maintenance for all Oasys software are set out in the Oasys Software Licence and Support Agreement. All prices are subject to TAX at the current rate.

Prices and specifications are subject to change without notice – please ask for a written quotation.

Although every care has been taken to ensure the accuracy of all information contained herein, the contents do not form or constitute a representation, warranty, or part of any contract.

Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.

Maintenance & Support Services

Support and maintenance is included with all subscription licences for their full duration.

Annual maintenance contracts are available for software under a perpetual licence, prices are based on a percentage of the most recent list price.

This service includes:

  • telephone/email/web based support
  • free software updates available via internet download
  • personalised output header for many products

Data Security

We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect.

All data is stored in secure electronic systems accessible only to Oasys staff with both valid network login credentials and specific authorisation to access the system.  Our systems further limit data access by role to ensure data is available only to those who have a specific need to see it.

If at any point you suspect or receive a suspicious communication from someone suggesting they work for Oasys or a website claiming to be affiliated with Oasys, please forward the communication to us or report the incident by email to [email protected] or in writing to Oasys, 13 Fitzroy Street, London, UK, W1T 4BQ as soon as possible.

Data Security Notice Updated 27th February 2020

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Website Terms and Conditions

The contents of this web site are protected by copyright and other intellectual property rights under international conventions. No copying of any words, images, graphic representations or other information contained in this web site is permitted without the prior written permission of the webmaster for this site.

Oasys accepts no responsibility for the content of any external site that links to or from this site.

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Slope — Slope Stability Analysis Software

Oasys Slope is a tool for civil and geotechnical engineers which provides an easy and accurate way to study a slip surface, finding factors of safety against failure, and to check suggested improvements from reinforcement. Slope is a core component of our Ground Movement Bundle and Geotechnical Suite, both in Pro and Basic versions.  

Oasys Slope

Oasys Slope empowers civil and geotechnical engineers to study and check their projects involving slope stability analyses, a key part of linear infrastructure design involving cuttings for permanent works, for example. 

Why should I buy it?

Civil and geotechnical engineers responsible for studying the global stability of reinforced earth structures, cuttings and more use Oasys Slope as it provides a validated, robust and user-friendly method of calculations, ensuring acceptable and appropriate QA and QC standards are met. 

Perform analysis of slope stability:

  1. Oasys Slope performs two-dimensional slope stability analysis using the method of slices (Limit Equilibrium) and presents the results in a clear graphical format.
  2. Users can apply partial factors, including EC7, easily.
  3. Slope includes the option of finite element steady state seepage analysis or defined pore pressure distribution.
  4. Soil reinforcement can be included and its impact on the resulting factors of safety, and hence the design, can be assessed.

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Capabilities of Slope

We have added the ability to compute pore water pressures using steady state seepage analysis to Slope. This provides a significant improvement to the way that water pressures are modelled in Slope.

Slope can now derive pore pressures for input to stability analysis by carrying out a steady state seepage analysis.  Generating pore pressures in this way requires material permeabilities and boundary conditions (fixed head, fixed flow or phreatic) to be set: Permeabilities are added via material properties, while boundary conditions are defined graphically. The 2D slope section will be automatically meshed, with element sizes adjustable at every node.  Pore pressure results in the finite element mesh are used to derive the pore pressures at the base and down the sides of each slice in the stability analysis.  This avoids the need to use a different program when a more accurate pore pressure distribution is required.

Interpolation of the pore pressures at all slices from the calculated finite element locations can be time-consuming if many slips are analysed at once, and/or if lots of elements are used to calculate the pore water pressures. It is recommended to run analyses with simple groundwater conditions first, and the more detailed analysis once the slip circles of interest have been identified.

The Morgenstern-Price method has become one of the standards in slope stability analysis and is preferred by some checking authorities around the world.  The implementation of this method in Slope allows either a constant relationship between the horizontal and vertical interslice forces or a “half-sine” relationship to be defined.  The method ensures that both moment and force equilibrium are maintained, which is not the case for some of the simpler methods.

Soil strata are now defined as polygons rather than left-to-right polylines. This makes drawing models faster and easier, principally by removing the need to generate lists of co-ordinates. Using polygons allows the definition of shapes instead of layers: It is no longer necessary to define the model using layers that cross the entire model. In line with our other geotechnical products, we have also updated the controls of Oasys Slope, adding a new control ribbon. Although the graphical interface has been significantly updated, Slope 21.0 fully supports importing of old Slope files and will convert the data as required.  This enables easy checking and updating of previous designs.

Slope now has COM interface functionality, allowing programmatic interaction with Slope from VBA and Python, for example. This means that Slope can be built into workflows or automation methods. The ability to save models in JSON format provides another way of doing this. JSON is a widely used data format; by adding this ability, we increase Slope’s potential to be used in this way.

Slope provides the following methods of analysis:

  • Swedish circle (Fellenius) method
  • Bishop’s methods
  • Janbu’s methods

The use of these methods allows analysis of both circular and non-circular slip surfaces to be carried out.

A variety of means of specifying water pressure are available including hydrostatic below a phreatic surface, piezometric or Ru values.

A variety of methods of specifying material shear strength are available including drained or undrained parameters which may vary with depth.

Analysis of reinforcing elements – soil nails, rock bolts, ground anchors and geotextiles – to BS8006/BS8081.

Slope has an Input Wizard to enable the user to set up an analysis with ease. It also allows for input via DXF for complex geometries.

A number of Graphical and Tabular outputs are available to users. Graphical outputs are ideal for reports and presentations and tabular outputs can be exported to Excel for further analysis.

Slope enables the user to apply partial factors to their analysis. EC7 partial factors are included but user defined partial factors can be set and applied.

Explore Slope Applications

Oasys Slope is available as part of new Oasys Bundles

Geotechnical Suite

The Oasys Geotechnical Bundles group together several Oasys Geotechnical software tools into a single subscription at a price significantly lower than the cost of the individual tools if purchased as separate subscriptions.

Find out more »

Ground Movement Bundle

The Oasys Ground Movement Bundles bring together tried and tested Oasys Geotechnical tools for slope stability assessment and the calculation of soil displacements due to imposed loading or excavation into a single bundle.

Find out more »

A40 Lledr Valley Improvement

The widening and upgrade of 7.2km of the A470 Road, which runs along the Lledr Valley between North and South Wales, has improved safety and journey times for the once narrow and hazardous road.

View Case Study »

Request a Trial Submission Form

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Further Information

The trials are limited for 14 days only, and there is no functional limitation. During the evaluation period you will only be able to use the software for test purposes and not for commercial paid work, and for the duration we will support you to get the most out of your test. System requirements can be found in the FAQs.

All we ask from you are some details so we can contact you to issue you with the installation file.

Once you submit your details, a customer service agent will contact you and provide the free trial installer.

Existing customers who are fully maintained can download the latest versions of their software on demand from their personalised customer licensing portal.

Your login ID and Password for the portal is not the same as your website account. You can find your login details in your purchase confirmation email. Alternatively you can request for your login details to be sent to you by emailing [email protected].

We offer a limited-duration trial license for you to assess the suitability of our products for your projects.

During the evaluation period you will only be able to use the software for test purposes and not for commercial paid work, and for the duration we will support you to get the most out of your trial.

All we ask from you is some details so we can decide whether you are eligible for a trial.

Compatible with most modern day Windows operating systems.

The full conditions of purchase and maintenance are set out in the Oasys Software Licence and Support Agreement. All prices are subject to TAX at the current rate.

Prices and specifications are subject to change without notice – please ask for a written quotation.

Although every care has been taken to ensure the accuracy of all information contained herein, the contents do not form or constitute a representation, warranty, or part of any contract.

By completing and submitting this form you consent to Oasys Limited storing and processing the personal data you have provided. We will use this information to keep you updated about the products requested for customer service and sales analysis. We do not pass your details to third parties to use. For more information visit our privacy policy. You may opt-out at any time by emailing [email protected].

Please select what type of licence you would like to purchase

Slope

USD $1,182.43USD $22,831.68

Oasys Slope is a tool for civil and geotechnical engineers which provides an easy and accurate way to study a slip surface, finding factors of safety against failure, and to check suggested improvements from reinforcement. Slope is a core component of our Ground Movement Bundle and Geotechnical Suite, both in Pro and Basic versions.  

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Quantity:
Total: USD $0.00

Description

Embedded retaining walls

Additional information

Select your version

Slope, Ground Movement Bundle, Ground Movement Bundle Pro, Geotechnical Suite, Geotechnical Suite Pro

Select your licence

Standalone, Network Floating, Network Floating International

I would like to

12 months Subscription (Pay annually), 36 months Subscription (Pay annually)

Oasys Frew is also available as part of the Oasys geotechnical and suites that bring together complimentary tools in discounted packages

What should I choose?

Standalone licenses are locked to an individual machine, but transferable by the user to another machine manually. Ideal for single users. Restricted to use within the country stated in the End User address submitted by Licensee to Oasys at the time of purchase.

Network Floating licenses can be activated on any number of machines, however you can only concurrently use the number of licences that you have purchased. Ideal for users requiring more flexibility or when working as part of a team. Restricted to use within the country stated in the End User address submitted by Licensee to Oasys at the time of purchase.

Network Floating International licenses can be activated on any number of machines, however you can only concurrently use the number of licences that you have purchased. Ideal for users requiring more flexibility or when working as part of a global team. Eligible for deployment world-wide at the Licensees leisure.

*Prices shown are per year cost

Both Subscription options will allow you the right to use the software for the defined term, with the full maintenance and support service included for the duration. The price will be fixed for the duration of the agreed term after which it will automatically renew for the same duration at the then current price.

12 month pay annually – Single payment for the full term at the commencement of the Subscription period

36 month pay annually – Three annual payments split the cost over the Subscription period. All payments are fixed at the time of purchase and are not subject to variance over time. Lower annual cost in comparison to 12 month option.

Keeping your software licences maintained gives you full access to technical support (telephone, email and web based) and ensures that your software is kept up-to-date with free downloadable updates. Maintenance is only available to existing licences and lasts 12 months. It is highly recommended that you keep your software licences maintained. Maintenance duration will be calculated from the date of expiry of the previous maintenance/initial warranty. If you are purchasing maintenance for licences that have been unmaintained for longer than 12 months please contact us in order to renew.

"MassMotion was really important in planning how we kept the station running smoothly during Renovations. We needed to make sure that we understood the way passengers were moving around the station so we didn’t run into any crowd control issues."
Steve Lewis - Network Rail

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