Tied-Back Deep Excavations in the Los Angeles Area

by Perry A. Maljian, (M.ASCE), Assoc.; LeRoy Crandall and Assocs., Los Angeles, CA,
James L. Van Beveren, (A.M.ASCE), Assoc.; LeRoy Crandall and Assocs., Los Angeles, CA,

Serial Information: Journal of the Construction Division, 1974, Vol. 100, Issue 3, Pg. 337-356

Document Type: Journal Paper


Based upon experience, the use of tied-back shoring to restrain a vertical excavation is a feasible and practical alternative to internal bracing. However, to properly restrain the excavation with minimal movements of the embankment, certain design and construction procedures should be observed. The overall stability of the embankment is of the utmost importance. The use of active earth pressures in the design of shoring has proved to be satisfactory. Anchor capacities may be estimated on a theoretical basis. In designing the shoring system, proper attention should be given to resisting the downward component of the anchor load. Adjacent to streets or existing structures, the shoring should be monitored. The success of a shoring job depends to a great measure on the experience of the shoring contractor and quality of workmanship.

Subject Headings: Shoring | Excavation | Anchors | Bracing | Soil pressure | Load and resistance factor design | Streets | Existing buildings | Los Angeles | California | United States

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