Sacramento Emerging Professionals February Meeting

Due to public health concerns with the COVID-19 outbreak, this event has been CANCELLED. We will notify our members about the possibility of rescheduling.

A new design method for working platforms stabilized by multi-axial geogrid

Presented by: Lees, A.S., Senior Application Technology Manager, Tensar International, Nicosia, Cyprus Fountain, G., West Area Engineer, Tensar Corporation, San Diego, CA.

Join the Sacramento EP group on Wednesday March 18th for their monthly meeting.

The meetings will alternate between GEI's Rancho Cordova office and the North Natomas library.

Description:

The design of working platforms typically involves the calculation of a two-layer bearing capacity. Existing calculation models are quite empirical with imprecise input parameters while other proposed methods have tended to involve multiple design charts and been suited to either strip or circular foundations only. It has also been difficult to incorporate the benefits of geogrid in an accurate way. The recently developed “T-Value Method” defines bearing capacity simply in terms of the ratio of strengths of the two layers and can be applied to both clay and sand subgrades. It also allows realistic incorporation of the benefit of multi-axial stabilizing geogrid in terms of the enhanced shear strength of the upper granular layer. This is leading to significant cost savings due to thinner working platforms that are designed in a safe and scientifically rigorous way. The greater ductility of stabilized granular layers also provides greater assurance that the assumed failure mechanisms can be fully mobilized before strain softening in the granular layer occurs. This paper summarizes the development of this design new method and describes some of the full-scale field tests that have been used in its validation.

Schedule:

6:30pm Registration and casual dinner

7:15-8:00pm Presentation

Cost:

$20 Professionals, Students Free!