The water table at a 100m×100m square shaped construction site is to be lowered by at least 2m by four pumping wells; one is located at each corner. The wells are each of 30cm diameter, and of equal depth. Further, the water table in the underlying aquifer is initially 20m above the impervious base. In a pumping test carried out, at a discharge rate of 1.6 l/s, in one of the four wells, the drawdowns at steady state in the other three wells are measured to be 0.87m, 0.60m and 0.87m, respectively. Estimate the minimum pumping rate for each of the four wells, when all the four wells are pumped concurrently at an equal rate under steady state conditions, to achieve the required lowering of the water table. The radius of influence of each of the pumping well may be assumed to be equal to that obtained during the aforementioned test pumping.
The water table at a 100m×100m square shaped construction site is to be lowered by at least 2m by four pumping wells; one is located at each corner. The wells are each of 30cm diameter, and of equal depth. Further, the water table in the underlying aquifer is initially 20m above the impervious base. In a pumping test carried out, at a discharge rate of 1.6 l/s, in one of the four wells, the drawdowns at steady state in the other three wells are measured to be 0.87m, 0.60m and 0.87m, respectively. Estimate the minimum pumping rate for each of the four wells, when all the four wells are pumped concurrently at an equal rate under steady state conditions, to achieve the required lowering of the water table. The radius of influence of each of the pumping well may be assumed to be equal to that obtained during the aforementioned test pumping.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
1. The water table at a 100m×100m square shaped construction site is to be lowered by at least 2m by four pumping wells; one is located at each corner. The wells are each of 30cm diameter, and of equal depth. Further, the water table in the underlying aquifer is initially 20m above the impervious base. In a pumping test carried out, at a discharge rate of 1.6 l/s, in one of the four wells, the drawdowns at steady state in the other three wells are measured to be 0.87m, 0.60m and 0.87m, respectively. Estimate the minimum pumping rate for each of the four wells, when all the four wells are pumped concurrently at an equal rate under steady state conditions, to achieve the required lowering of the water table. The radius of influence of each of the pumping well may be assumed to be equal to that obtained during the aforementioned test pumping.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
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