An 8-m-diameter storage tank is located on the ground surface of an area where a 4-m thickness of desiccated (firm) fine-grained soil is underlain by a very thick layer of similar fine-grained soil that retains a high water content and, as a result, is relatively weak and compressible. The modulus of elasticity for the firm upper zone is 10 times the modulus for the underlying layer. The tank bearing pressure is 125 kPa.(a) Determine the increase in vertical stress beneath the center of the tank at a depth of 6 m.(b) Compare the result from (a) to the value of stress increase if homogeneous conditions (Westergaard) are assumed.
An 8-m-diameter storage tank is located on the ground surface of an area where a 4-m thickness of desiccated (firm) fine-grained soil is underlain by a very thick layer of similar fine-grained soil that retains a high water content and, as a result, is relatively weak and compressible. The modulus of elasticity for the firm upper zone is 10 times the modulus for the underlying layer. The tank bearing pressure is 125 kPa.(a) Determine the increase in vertical stress beneath the center of the tank at a depth of 6 m.(b) Compare the result from (a) to the value of stress increase if homogeneous conditions (Westergaard) are assumed.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
An 8-m-diameter storage tank is located on the ground surface of an area where a 4-m thickness of desiccated (firm) fine-grained soil is underlain by a very thick layer of similar fine-grained soil that retains a high water content and, as a result, is relatively weak and compressible. The modulus of elasticity for the firm upper zone is 10 times the modulus for the underlying layer. The tank bearing pressure is 125 kPa.
(a) Determine the increase in vertical stress beneath the center of the tank at a depth of 6 m.
(b) Compare the result from (a) to the value of stress increase if homogeneous conditions (Westergaard) are assumed.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning