Department of Earth Science  /  Northeastern Illinois University

INTRODUCTION TO GEOTECHNICAL ENGINEERING
ESCI 340
Spring 2010

Daily Objectives #22 (April 1, 2010)                                                                                                                     Dr. Laura Sanders

On April 20, we will be attending the AEG-NC Section dinner meeting.  More details will be provided; please mark your calendar.

By the end of today's class, you should be able to do the following:

w  Describe what is required of you in the next step of the Geotechnical Project.

w  Explain how a hollow stem auger (HSA) works, and tell why it is commonly used in geotechnical investigations.

w  Explain how a "split barrel" (or "split spoon") sampler is used to extract soil samples.

w  Explain how the Standard Penetration Test is conducted, and demonstrate how to interpret SPT results.

w  Explain what is meant by the term refusal in the SPT.
 

A few videos:

w  The SPT done manually w  Hollow Stem Augering w  This one is an ad, but it does a nice job of illustrating the SPT

w  The SPT done using a drilling rig w  Hollow Stem Augering and SPT (common in environmental and geotech drilling) w  Direct Push Sampling (Geoprobe and clear Shelby Tube)

Department of Earth Science | Northeastern Illinois University

Copyright 2010 by Laura L. Sanders.  Last updated March 30, 2010.