![Gross and Net Soil Pressures](https://blog.risa.com/hs-fs/hubfs/Imported_Blog_Media/soil_2.png?width=700&name=soil_2.png)
February 20, 2024
Gross and Net Soil Pressures
In RISAFoundation, the Allowable Soil Bearing value is controlled by the Soil Region. This value is always taken as a Gross allowable soil pressure by default.
The 4th of July is a time for celebration, fireworks, and, of course, a bit of fun. For those with a knack for engineering or simply looking to engage in some creative activities, why not take on some patriotic engineering challenges? These activities are perfect for kids and adults alike, providing an entertaining way to celebrate Independence Day while sharpening your problem-solving skills. Here are three exciting challenges to get you started: 1. Popsicle Stick Bridge Materials Needed: Popsicle sticks Glue (wood glue or a hot glue gun) Small weights (coins, toy cars, etc.) Challenge: Design and build a small bridge using only popsicle sticks and glue. The goal is to create a bridge that can support as much weight as possible. This activity not only tests your creativity but also your understanding of structural integrity and load distribution. Instructions: Plan Your Design: Before you start gluing, sketch out a design for your bridge. Consider different types of bridges, such as beam, truss, or arch bridges. Build the Foundation: Begin by constructing the main supports for your bridge. Glue several popsicle sticks together side by side for a strong base. Assemble the Bridge: Connect the supports with horizontal and diagonal…
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In RISAFoundation, the Allowable Soil Bearing value is controlled by the Soil Region. This value is always taken as a Gross allowable soil pressure by default.
RISAFoundation has the ability to display the enveloped contour diagram results for soil pressure. The graphical display of enveloped soil pressures is advantageous because it allows users to quickly identify the degree of influence the loads and slab geometry have on the soil.
RISAFoundation can apply soil overburden to a mat slab to account for the weight of the soil above the foundation. Simply enter a Soil Overburden pressure value for your foundation design in the Slabs spreadsheet. The soil overburden load is utilized to help the mat slab resist overturning during...
RISAFoundation includes the added ability to enter a passive pressure for slabs. The passive pressure represents soil pressure along the perimeter of the slab and will contribute to the sliding resistance of the slab.
With Pile Design in RISAFoundation, you have the ability to define the default soil properties for the entire model. But also the Soil Definitions spreadsheet gives you control over all the soil property layers in one location.
While RISAFoundation has a Default soil properties (Subgrade Modulus and Allowable Bearing), it is possible to create regions of varying soil properties.
RISAFoundation has the capability to report soil bearing pressures, and check them against allowable pressures.
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