EireChch (Geotechnical
Is it your experience to provide earth pressure values for footer design, and if so what restrictions/limits on application do you provide?
Footer/Foundation/Footing - all used interchangeably where I live
TigerGuy,
It has been indicated to me that they intend to use these values to accommodate lateral loads on the foundations (resisting the footing wanting to kick-out). I have never been asked for earth pressures for shallow foundation design (except for retaining walls) in 10 years....
Passive...
I am a geotech engineer being asked to provide passive earth pressure parameters for the design of building foundations. Metal building supported by column footers. Is it conventional to use passive earth pressures for lateral loads on foundations, or is the lateral load typically addressed...
I am a geotech engineer being asked to provide passive earth pressure parameters for the design of building foundations. Metal building supported by column footers. Is it conventional to use passive earth pressures for lateral loads on foundations, or is the lateral load typically addressed...
I have a question regarding best practices for lab testing. My lab will sometimes have several people working in the lab together, and they may run a proctor together. I don't know how they split up the work, whether they take turns beating each point, or whether the same person always beats...
General question regarding using the results of triaxial testing on remolded samples for slope analysis. We are generally testing silty sands or sandy silts. Not really any clays to or even elastic silts in our area. The lab we use often reports effective values in the neighborhood of 34...
An update on this....lab testing indicated high strenght parameters on remolded samples. Performed CU triaxial on samples remolded to 95% of ASTM D 698 and got results of around 36 degrees which is just confounding to me. I still think the lightweight will make it challenging for the...
I have a small project masonry project for which 1 set of 3 mortar cubes were made and tested for compressive strength. Low 28-day strengths were 600 psi for Type S. There is only 1 set due to size of project and contractor not calling for testing. Can the prism method by done (ASTM C 1314)...
The building is likely going on stone columns anyways due to high loads. Going back and forth and whether only foundations or both slabs and foundations will need to be supported by the stone columns. Earthwork fills will include filling for a parking lot and some 2H:1V fill slopes. Some of...
It's definitely not a CL, we rarely have any of that around here. No errors in the math or test, we have ran into this lightweight material a few times in our region, but this is the first job we've had where they need to use it as fill (or face a costly export/import scenario).
I need to...
Looking for any data or experience working with low unit weight soils. I drilled a site for a new project which will have earthwork cuts and fills. We ran Standard Proctor tests on two bulk samples and got very low unit weights, 76 pcf and 83 pcf with optimum moistures around 30 percent...
I've seen it referenced several times here, but have not been able to find a copy. Looking for the following paper
"Dynamic CPT for Test-Pit Field Investigations: Experiences with Sowers' Cone Penetrometer" by L.E. Robinson that provides several equations to correlate Sowers' DCP blows to SPT...
