

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Material Type: Exam; Professor: Meier; Class: Advanced Soil Mech; Subject: CIVL Civil Engineering; University: University of Memphis; Term: Fall 2008;
Typology: Exams
1 / 3
This page cannot be seen from the preview
Don't miss anything!
Examination # Fall 2008
Boring logs indicate 5 feet of desiccated clay crust (γsat = 123 lb/ft 3 ) that can be assumed to be incompressible. Below this is 50 feet of normally-consolidated silty clay (γsat = 109.5 lb/ft 3 ) underlain by dense sand (which can also be assumed to be incompressible). Consolidation test results for the normally-consolidated silty clay are provided on Page 3. You will have to develop a field consolidation curve from this data.
Tank construction will begin once the underlying clay has reached 90% consolidation (which is estimated to be 2 years after construction of the fill is completed). The tank has a diameter of 80 ft and a height of 50 ft. When the tank is full, it will exert a pressure of 3000 psf on the surface of the engineered fill.
a. Calculate the total height of fill needed to bring the site to final grade (el. 18.0).
b. Calculate the expected settlement of the tank foundation once the tank is filled.
Clearly state any assumptions you have to make to solve this problem.
Incompressible Sand
Silty Clay (NC) γ sat = 109.5 lb/ft 3
Desiccated Crust
Dredged Fill
Storage Tank
el. 18.
el. 58.
el. 0.