Specification for Cast-in-Place Concrete Pipe (ACI 346M-09)
Description 3.1.1.1 Excavation—Excavate trench to establish gradeand alignment. Trench shall be shaped to outside diameter ofpipe to provide trench form. Trench form shall provide a full,firm, and continuous support by undisturbed earth, rock, orcompacted fill. Trench form shall be stable and free ofprotrusions, mud, debris, and running water. Maintain trenchform moisture in a manner such […]
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