H-20 LOADING CONDITIONS

H-20 loading
ENGINEERING
The Silva Cell is a rigorously engineered product that has undergone extensive FEA, lab, and field testing. And with over 250 installations in the ground to date, we're confident that we've seen every construction scenario out there.

The Silva Cell is a product, but it is also a system. Each installation site has its own unique attributes – soil, tree species, hydrology, climate, and more – that influence how it is incorporated and how it will perform. From early on in the design phases, every component of the site should be considered thoughtfully within the context of thhis sytem. Our team of technical experts are available to provide assistance throughout this process.

Information on the following is available by request. Please This e-mail address is being protected from spambots. You need JavaScript enabled to view it for details.

  • Curb setbacks

  • Lateral loading

  • Dynamic loading
  • Geogrids & geotextiles

  • Drainage & water issues
silva cell one stack
ONE STACK
silva cell two stack
TWO STACK
silva cell three stack
THREE STACK

SUMMARY OF TOP DECK STRESSES UNDER H-20 LOADING CONDITIONS

The Silva Cell can support vehicle loading up to AASHTO H-20 rating of 32,000 lbs. (14,500 kgs) per axle. This rating refers to the ability of a roadway to safely accommodate 3-4 axle vehicles, such as a large semi-truck and trailer.

The tables and associated paving conditions listed here are represented in our standard product details and specifications.
Physical load testing was completed by TRI Environmental in order to determine the ultimate allowable stress of the Silva Cell. The applied stress values from the applied loading on the pavement surface were determined using Sigma/W, a finite element program, for each of the design cases. These values were compared to the ultimate allowable stress (considering a minimum safety factor of 1.45). In all cases, the material self weight is used.

The values in the table to the left are the applied stresses due to various loading scenarios and are calculated based on having the ground surface loads dissipated through the pavement surface.

Loading standards vary worldwide and your particular project may have different needs. Please  This e-mail address is being protected from spambots. You need JavaScript enabled to view it to review and optimize the use of the Silva Cell to your project goals.