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Looking at the formulae and the results, it appears that the reason for the error is that you're getting a negative pressure for the equations: Maximum Pressure per F.4.2 Equation 1 and Maximum Pressure per F.4.2 Equation 2. In both of these equations you're subtracting RMW which has a value...

Please refrain from posting in multiple locations. This question was posted in 3 forums: Ag forum https://www.eng-tips.com/viewthread.cfm?qid=522558, Soil/groundwater https://www.eng-tips.com/viewthread.cfm?qid=522560, and here. I wouldn't of said anything if it was only 2 since the Ag forum...

You probably should contact your local soil conservation services as they may be able to help you a lot with this or the NRCS. The NRCS may be able to assist with the design. 1. Your 6" pipe will be able to drain more liquid than a 4" pipe. 2. I think it's typically 300' apart, but it will be...

Those are 3 different mixes. If you are wanting to evaluate differences between water to cement ratios, the only thing that should be varying is the amount of water and cement. The amount of aggregate should remain constant.

Is this it? https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.issmge.org/uploads/publications/1/30/2001_01_0018.pdf&ved=2ahUKEwjI9q7ZnuiHAxW2kIkEHVL0CQQQFnoECCUQAQ&usg=AOvVaw3HkOutcLJNrrYV-LndaBgh

You need to consider all of the failure modes, as the slope failure may occur in the waste itself. It doesn't do you any good to have a liner (cap or bottom) that is stable if the underlying material (soil for bottom liner, waste for cap) if the failure mechanism will occur in the materials you...

Here's some information you should review from Indiana's DNR's site: https://www.in.gov/dnr/water/dams-and-levees/

I don't think you have enough data to calculate the 2yr-24 hour storm. You have only 11 hours worth of data and you're trying to predict the amount of rain for a 24 hour period that will occur 50% during any storm event. Your data indicated 2" of rain in 11 hours, but who knows how that...

Have you considered doubled-walled tanks? This wouldn't address any issues of secondary containment for ancillary equipment, but may be the best solution for the tanks themselves.

Here's a few PE rules that I think prevent you from working until you have a PE that's in charge at your workplace: 58-22-305 Exemption from licensure allows the non-engineers to do engineering work, provided they're working under a PE. 58-22-603 Seal -- Authorized use. Item (1)(b) allows the...

I would go to Utah's website to get the information: https://dopl.utah.gov/engineering/ Looking at the rules 58-22, it appears that without a PE, the firm you work at cannot perform any engineering services, nor could you partially perform the work for another PE to sign since they do not have...

No, I had to do a Google search of rhgeotech and geomembrane to find their website: https://rhgeotech.com/ It looks like they go by the name of SINOCURE GEOSYNTHETICS based on the website.

Any idea why the model stopped? Could it be that the level in the reservoir got too high and overtopped the dam or something?

It might be somewhere at the Internet Archive: https://archive.org/search?query=machine+design&page=2

Forgive my ignorance, but I'm not certain what is a COA number. Is this something that needs to be on the drawing that needs to be certified or is it just general information (e.g., the drawing information box)? If it's not required, ask for a version of the drawing that doesn't contain the...

Since we are talking about water SG=1, then Creed2023 you are correct of the minimum thickness of 0.236" is required.

Per ASTM D7928:

Well numerically, V1 = delta t x q (e.g., (0.73 - 0)(0.65) = 0.47, (1.70 - 0.73)(1.94) = 1.88, etc.) V2 = | delta t x delta q /2 | (e.g., |(0.73 - 0)(0.65 - 0)/2| = 0.24, |1.70 - 0.73)(1.94 - 0.65)/2| = 0.63)

What are the following conditions: 1. How high is the water table compared to the depth of the excavation? 2. How fast is the ground water entering into the excavation? 3. How thick is the mud mat?

This is the time to be sending out resume for Summer Intern jobs. This appears to be a link to the TDOT Summer Internship Program: https://www.tn.gov/tdot/human-resources-home/tdot-careers/internship-program.html