Up against the Wall (available in Geoenvironmental special issue only)

by Chris J. Wolschag, P.E., (M.ASCE), Partner; Ground Support, Redmond, WA,
R. John Byrne, P.E., Partner; Ground Support, Redmond, WA,
David M. Cotton, P.E., Principal; Golder Associate, Redmond, WA,


Serial Information: Civil Engineering—ASCE, 1999, Vol. 69, Issue 6, Pg. 2A-7A


Document Type: Feature article

Abstract:

A tight site in Portland, Oregon, bounded by existing roads and a light rail line and bordered by underground utilities, required project engineers to develop a new type of shoring wall system. Use of existing techniques was impossible because either the equipment to install those systems could not fit comfortably on the site or the technique itself would interfere with the surrounding area. Engineers created what they call a suspension wall. Shotcrete facing suspended by steeply inclined pretensioned soil nails and subvertical compression soil nails produced near at-rest horizontal earth pressures and restrained lateral movement.

Subject Headings: Soil nailing | Walls | Soil pressure | Soil compression | Subsurface utilities | Light (artificial) | Underground structures

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