Pipe anchor blocks

[sodengineer]

Hello

I'm looking for design criteria for anchor blocks that are used to anchor what we call "trickle tubes" in dams. These are essentially a 12 or 18 inch pvc pipe that is located about 5 feet below the crest of a dam. The tube runs on a slight slope then generally parallels the downstream slope of the dam before then bending to essentially horizontal and discharging. A trickle tube is used to control the elevation in an evaporation pond.

Thanks