I am updating a calculation where the bearing pressure at the toe of a gravity dam is calculated in the usual way, depending on whether the resultant is in the middle third. Uplift is initially assumed to be a straight line from heel to toe and adjusted by iteration to full headwater pressure if a crack occurs at the heel. All of this makes total sense; however, the engineer who prepared the calculations (no longer with company) adds tailwater pressure to the calculated pressure at the toe. For example pressure at the toe per unit width with R in middle third is calculated as R/BASE LENGTH)(1+6e/BASE LENGTH) + tailwater pressure.
Does anyone agree that it is correct to add the tailwater pressure? Why? Is it a pore pressure thing?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
In this ebook, we'll explore how additive manufacturing is going to transform the way cars are made. This includes commentary from thought leaders such as Ford's CTO, Ken Washington, Customer case studies of ways 3D printing is being used today, and a variety of part examples where 3D printing is already impacting how automobiles are made. Download Now
Learn how Kawasaki optimized automotive and aerospace production processes to save 85% of estimated outsourcing costs by bringing in BigRepâ€™s large-format additive manufacturing systems. And, how efficient workflow and logistical integration helped earn back their investment in just 6 months. Download Now
New technologies and approaches present great opportunities for semiconductor manufacturers to achieve high levels of innovation, yield and improvement. This white paper explores some of these cutting-edge technologies and how they can be applied effectively in the semiconductor industry. Read about how Smart Manufacturing is transforming the semiconductor industry. Download Now
Organizations using simulation and analysis tools effectively see the benefits in their ability to achieve certification faster and with drastically less total cost than those who do not maximize these tools. Read this White Paper to learn about how digital tools such as analysis and simulation help in aircraft structure certification. Download Now