Dan MacDonald, John Kerr, Gordon Fung, German Cajigas, Ryan Tones, Ender Parra, John Sully


19th Annual Vancouver Geotechnical Society Symposium (2010)

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Design and Construction of MSE Slopes Associated with the Port Mann Bridge, Vancouver, BC (1.04 MB)

This paper presents the seismic modeling performed for the design of a 9-m high 70o SierraSlope® with an upper 2H:1V fill slope up to 4 m high.

The SierraSlope, a Mechanically Stabilised Earth (MSE) reinforced soil slope using geogrids, was introduced by Tensar International Corporation (Tensar). The facing of the slope is composed of welded wire mesh forms with a synthetic wrap system of Tensar Biaxial Geogrid. The FLAC (Fast Lagrangian Analysis of Continua) finite difference program was used to model the SierraSlope under seismic loading conditions. The FLAC analyses are considered to provide a comparison and evaluation of the standard design approaches as well as an additional insight into the seismic performance of the SierraSlope.