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Install the pipe, embed the joint in concrete and then have a slip liner installed inside the pipe.

never place aluminum into concrete Consolidation issues Construct ability issues

Typically you can find the information on the outside of the pipe. Not sure what the question actually is

Walk away this has red flags. I had this happen and the client wanted me to cover their cars that would be parked in the structure. Their accountant was the point of contact who in the end terminated my contract with the owner. I had already provided a design and drawings to them so I wanted...

What was your max soil pressure? Did you keep it in the kern?

Where are the tendons? It seems like there is information missing.

What assumptions did you make in design? What was the effective width?

To make it simple you need to take the area of total displacement or discount the unit weight. The volume displaced by the pipe is your buoyant force. If you take your concrete weight - water weight = submerged concrete weight Soil weight-water weight = submerged soil weight Buoyant force...

Both equations can be used A) wc = wt concrete- wt water B) wc = wt concrete

Increase footing thickness and wall thickness. Or design with buttress Change backfill material How would you install the footing without undermining the sidewalk? Based on this you should use sheet piles or solder pile and lagging

https://fxbinc.com/wp-content/uploads/2016/10/state-by-state-summary-licensure-law-exemptions.pdf Appears that it maybe exempt. Check similar companies websites to see what they are.

Not really sure what you are driving at. Are you asking if you need to be a P.E. to run the business typically PLLC or PC. Or do you operate under industry exemption?

https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXVI/Chapter112/Section81r g) the performance of engineering work or services by employees of a corporation engaged in manufacturing, research or development operations, which work or services are performed in connection with the research or...

For sign structures I have used hand calculations taking into consideration the group of anchors and figuring the load for each bolt. Look up monopole tower bases

Look up combined bending and axial loads in NDS. The assumption of rafters is axial loads are minimal. But this is a steep sloped roof and this assumption doesn’t hold true or safe. Wind load will have an impact on design.

It is a problem that is a result of the more successful engineers retiring. The leaders now are the engineers that were unsuccessful and hinder the future growth and drive the quality engineers out. Coordination is key and asking input is key, arrogance has no place in engineering and blinders...

The whole slab analysis is a waste of time. The slab is too thin and under reinforced for it to be applicable for what you are doing. You would need to check the shear capacity of the concrete and the appropriate width it could be assumed the loads would be distributed by the footing. If you...

Have to design it like a wall and beam. Check bending, axial and shear.

You’d be surprised how many buildings are still around that were built his way. Does the slab exhibit structural cracks? I have see 3” of washout concrete on clay in NY stand up to years with excavators and tractors going up it. If it does settle you can always jack it up and do a footing on top...

I would say you an underestimating the capacity of the slab. The perimeter if there are voids due to washout I would fill them with grout. Run multiple walls and cantilever the perimeter to reduce edge loads. Use naturally rot resistant wood species. Ventilation of the area below is important.