Does anyone know if the constrained soil modulus (Ms) used to compute deflection of buried flexible pipe (Spangler's formula) is the same Ms used in settlement/consolidation analyses? The buried pipe calculation is detailed in AWWA manual, AASHTO LRFD, etc.--a screenshot of the AASHTO...
Hi all,
I'm working on a project that's a little out of my wheelhouse--looking for your insight on appropriate method. I am trying to develop a service life (50 year) Pressure Rating / Pressure Design Basis for a large diameter, corrugated, double-wall thermoplastic pipe (HDPE). Due to the...
Hi all,
I have a set of boring logs from a site in Quebec (so in French), which have a soil description I have never seen. In multiple logs a stratum is simply labeled "destructif" with no SPT results or additional notes. The hatching shown looks like clean gravel or cobbles but I am hesitant...
I am working on design and construction recommendations for a series of HDPE manholes installed in expansive clays. As far as I tell, there are many posts on this site about shallow foundations over expansive soils, but nothing yet about buried structures like manholes, pipes, tanks, etc. I am...
