{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Problem Set No. 3 2009

# Problem Set No. 3 2009 - 20 ◦ C 2 3(3 points The...

This preview shows pages 1–2. Sign up to view the full content.

1 Student’s Name: GEOL 4320/5328 Hydrogeology Fall 2009 Homework Problem Set #3 (15 points) (Due: Sep. 30, 2009 ) 1. (3 points) The hydraulic conductivity of medium-sized sand was measured as 11.2 m/day in a laboratory test with water at 25°C. (A) What is the intrinsic permeability of the sample in square micrometers? (B) What is the expected in-situ hydraulic conductivity if the natural groundwater temperature is 10°C? 2. (3 points) A constant-head permeameter has a cross-sectional area of 127 cm 2 . The aquifer sample is 34 cm long. At a head of 15 cm, the permeameter discharges 50 cm 3 in 334 s. (A) What is the hydraulic conductivity in centimeters per second and feet per day? (B) What is the intrinsic permeability if the hydraulic conductivity was measured at

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 20 ◦ C? 2 3. (3 points) The stratification of an aquifer is shown below. Calculate the equivalent horizontal and vertical hydraulic conductivities. What is the degree of anisotropy? 4. (6 points) Using the tabulated results of a grain size distribution test on a field sample, perform the following tasks: (A) Plot a grain size distribution curve for this sample (hint: you need to get the grain size for each sieve number from the lecture note) (B) Is this a well-sorted or poorly-sorted sample? (poorly-sorted materials have a uniformity coefficient > 6) U.S. Standard Sieve Number Mass retained (g) 3/8 49.95 4 26.70 8 25.29 16 50.58 30 72.57 40 25.50 100 33.60 200 7.53 Pan (passes through #200 sieve) 8.28...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern