Assignment 1a - MEMORANDUM TO FROM DATE SUBJECT Professor...

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MEMORANDUM TO: Professor McGuire FROM: Jesse Siegel DATE: January 17, 2008 SUBJECT: Assignment No. 1a in CEE 4534, Earth Pressures and Foundations As you requested on January 15, I have completed the tasks that were outlined in Assignment No. 1a. The assignment was completed for January 17, 2008. Attachment 1 is the class handout “Assignment No. 1a”, which outlines questions regarding soil classification and an assigned reading on lunar soil. Attachment 2 is calculations and notes that were used to complete the assignment. The course notes were also used to complete the assignment. For the first problem a particle size distribution curve was given and it was stated that the soil was inorganic with the Atterberg limit values: LL=54 and PL=31. Using this information it was determined that the soil was a sandy elastic silt (ASTM symbol MH). For the second problem a particle size distribution curve was given.
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Unformatted text preview: This was used to determine that the soil was well-graded sand with gravel (ASTM symbol SW). For the third problem we were given an article to read about the particle size distribution of lunar soil. It was stated in the article that the lunar soil is classified as sandy silt/silty sand and also well-graded. It was also stated that the lunar soil had a coefficient of uniformity approximately equal to 16. Hence, the lunar soil may be internally erodible, that is, it is potentially susceptible to “segregation piping”. Therefore, I would not allow the lunar soil to be used as structural fill. If you have any questions or concerns regarding this memo please feel free to contact me by phone at 413-348-5804 or by email at [email protected] Jesse Siegel, EIT [Type text] [Type text]...
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  • Spring '08
  • MICHAELMCGUIRE
  • Particle size distribution, Lunar soil, Professor McGuire Jesse Siegel, Jesse Siegel

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