Department of Earth Science |Northeastern Illinois University

INTRODUCTION TO GEOTECHNICAL ENGINEERING
ESCI 340
Spring, 2007

Review for Exam #3  (May 1, 2007)                                                                                                                               Dr. Sanders

For today's exam, you should be able to do the following:

* Use the USCS classification system to classify a soil on the basis of lab tests.  (This was a presentation by Jeff.)

* Use topographic maps to identify important features and to find locations using latitude and longitude and the Public Land Survey system (township, range, section).

* Use topographic maps, soil surveys, geologic maps, stack maps, and other published documents to investigate a site during the "site reconnaissance" phase of a study.

* Examine a topographic map (we used the Mokena quad in class) and a geologic map (the Willman map) and correlate geologic features with topography. 

* Describe the topographic expression of a moraine, an outwash plain, and the Chicago Lake Plain.

* Use geologic maps of many types to examine the geology of a particular area.  (In class, we looked at the NEIU campus.)

* Describe methods used for subsurface exploration and sampling, and explain how engineers determine the number, depth, and type of borings needed.

* Set up and be ready to work out Problem 4.2, 4.3, and 4.4 using the hints provided here.

* Construct a cross section based on boring logs.

* As in the geotechnical project, describe a site's topography and subsurface geology based on geologic maps, topographic maps, and analysis of boring logs.

* As in the geotechnical project, use the results of a boring program to identify locations and depths at which water may be encountered in the subsurface.

* List the ways in which a compacted soil differs from an uncompacted soil.

* Describe a Proctor compaction test, and explain what its purpose is.

* Tell what is meant by optimum water content and optimum dry unit weight.

* List and explain each of the phases of earthwork.

* Identify the heavy equipment used in earthwork.


Department of Earth Science | Northeastern Illinois University

© 2007 Laura L. Sanders.  Last updated April 27, 2007.