An aquifer is overlain by 15 m of jointed rock. The density of the rock is 2500 kg/m. The density and compressibility of water are 1000 kg/m and 4.5 x 10-10 m2/N (Pa), respectively. Illustrate the system Calculate the total stress acting on the top of the aquifer. If the pressure head in the aquifer is 22 m, calculate the effective stress in the aquifer. If the aquifer is pumped and the hydraulic head at some point reduced by 5 m, what will be the resulting changes the pressure head, the fluid pressure, the effective stress, and the total stress? If the compressibility of the aquifer is 5 x 10° m-/N and its thickness is 7 m, how much compaction will the aquifer undergo during the head reduction in part (c)?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
An aquifer is overlain by 15 m of jointed rock. The density of the rock is 2500 kg/m3. The density and compressibility of water are 1000 kg/m and 4.5 x 10-10 m2/N (Pa), respectively.
Illustrate the system
Calculate the total stress acting on the top of the aquifer.
If the pressure head in the aquifer is 22 m, calculate the effective stress in the aquifer.
If the aquifer is pumped and the hydraulic head at some point is reduced by 5 m, what will be the resulting changes in the pressure head, the fluid pressure, the effective stress, and the total stress?
If the compressibility of the aquifer is 5 x 10° m-/N and its thickness is 7 m, how much compaction will the aquifer undergo during the head reduction in part (c)?
Transcribed Image Text:An aquifer is overlain by 15 m of jointed rock. The density of the rock is 2500 kg/m3. The density and compressibility of water are 1000 kg/m and 4.5 x 10-10 m2/N (Pa), respectively. Illustrate the system Calculate the total stress acting on the top of the aquifer. If the pressure head in the aquifer is 22 m, calculate the effective stress in the aquifer. If the aquifer is pumped and the hydraulic head at some point is reduced by 5 m, what will be the resulting changes in the pressure head, the fluid pressure, the effective stress, and the total stress? If the compressibility of the aquifer is 5 x 10° m-/N and its thickness is 7 m, how much compaction will the aquifer undergo during the head reduction in part (c)?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 1 images

Blurred answer
Knowledge Booster
Stresses in saturated soil without seepage
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.
Similar questions
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning