I obtained an undisturbed sample of desiccated, overconsolidated lacustrine clay from a depth of six to seven feet at a subdivision project site, and assigned a swell pressure test per ASTM 4546. I do not have the lab report yet, but I was informed by the lab tech that the swell pressure is...
I have been asked to specify a foundation for a rigid frame building with a 70 foot clear span. The horizontal thrust at the base plate, as provided by the building manufacturer, is 19 kips. I have determined to use a 3/4" wire rope tie between opposite piers to resolve this lateral load...
I will try to keep this as short as I can.
A few weeks ago I asked some questions and received valuable feedback regarding the consolidation of soft clay due to lowered water tables, and the possibility this may contribute to the numerous cases of residential foundation distress in a certain...
I searched the forums with the keywords soft, clay, consolidation, water table and lower.... and I got into the civil/env/other forum and posted this same query. I thought afterwards that the foundation engineering forum was the proper place, and apologize for any inconvenience.
I was hoping...
I am working on a design for a telescoping manhole system that relies on shear failure of High Density Polyethylene pins. Can anyone tell me what the shear strength of HDPE is, or where I can find this information?
I am working on the design of a telescoping manhole comprised of alternating 42" and 48" HDPE pipe. This manhole is to be placed to a depth of over 150 feet in a solid waste landfill. Due to settlement of the waste and the resulting down drag on the pipe system, I will have to allow...
I am assessing down drag forces for a 170 foot deep manhole already in place, and buried in a ring of stone surrounded by municipal solid waste. The down drag force is easy enough to compute; however, I am curious about whether this is a transient or constant force. When the waste consolidates...
