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NEWS
Updated Standard For Soil–Pipe Interaction Systems Published
July 5, 2017

The American Society of Civil Engineers (ASCE) has recently announced that Standard Practice for the Direct Design of Buried Precast Concrete Pipe Using Standard Installations (SIDD), Standards ANSI/CI 15-17, reviews the design and construction of the soil–pipe interaction system used for the conveyance of sewage, industrial wastes, stormwater, and drainage. The SIDD method accounts for the interaction between pipe and soil envelope in determining loads, pressure distributions, moment, thrust, and shear. Construction requirements for excavation, safety, foundations, bedding, sheathing removal, and trench shield advancement are presented. Four types of standard embankment installations and four types of standard trench installations are covered.

This Standard, a revision of ASCE 15-98, includes updates to correlate with the latest ASTM International and American Concrete Pipe Association (ACPA) documents for trench and embankment conditions, as well as current soil classifications. Design equations for nonreinforced concrete pipe have been added. Standard ASCE/CI 15-17 may be used as a reference in preparing project specifications based on the SIDD method, and the limits state design procedure is consistent with the procedures outlined in the AASHTO Standard Specifications for Highway Bridges.

This Standard is useful to civil engineering design professionals, consultants, owners, and transportation officials.

To purchase online visit the ASCE Bookstore.


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