To all contributors: thank you all for your input. Client and owner were finally convinced there iss a potential/very likely issue, and they provided access (w/confined space entry permit) for an actual look at this electrical vault; a 13.8 kV one by the way. The site is at a refinery, which I...
Thank you MMC and chicopee. The ring (via its 34 equally spaced steel support feet/pads) sits on a layer of steel matting (8'x16'x11" thick), which overlies a layer of oak matting (4'x20'x12" thick) oriented 90 degrees to the steel matting; hence load will be reasonable distributed once it...
I have a situation where there is a 45-ft-dia. Manitowoc ringer crane being constructed on steel and timber matting over an approx 2-ft-thick soil fill pad over existing on-site roadways designed for H-20 loading at an industrial site. Crane load will be uniform ground pressure of 4,000 psf. An...
