Pin Piles Save Silos

by James H. Greenman, President; Haner, Ross & Sporseen, Inc., 15 S.E. 82nd Drive, Gladtsone, OR 97027,
George Bingham, Haner, Ross & Sporseen, Inc., 15 S.E. 82nd Drive, Gladtsone, OR,
Paul B. Groneck, Chf. Engr.; Nicholson Construction Co., P.O. Box 1702, Tacoma, WA 98401,
Donald A. Bruce, Tech. Dir.; Nicholson Construction Co., P.O. Box 98, Bridgeville, PA 15017,


Serial Information: Civil Engineering—ASCE, 1993, Vol. 63, Issue 9, Pg. 66-68


Document Type: Feature article

Abstract:

The United Grain Corp. annually ships about 200 million bushels of wheat and other grains to destinations around the world from its leased facility on the Columbia River at Vancouver, Wash. Central to the operation is the A House facility, which includes a main elevator structure and three silos, two built in 1934 and the third in 1939, with a combined capacity of 2.3 million bushels of grain. Some sixty years later, progressive deterioration of the timber pile foundation required that the facility's foundation be completely replaced or the complex shut down. Ultimately, 840 small-diameter, high-capacity pin piles provided new foundation support without interrupting operations.

Subject Headings: Pile foundations | Crops | Wood piles | Silos | Wood and wood products | Ships | Rivers and streams

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