<?xml version="1.0" encoding="UTF-8"?>
<tem xmlns="http://www.teachengineering.org/tem/elements/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.teachengineering.org/tem/elements/1.0/ http://www.teachengineering.org/schemas/tem.xsd"><identifier>http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_brid/cub_brid_lesson03.xml</identifier><docType>lesson</docType><format>text/xml</format><language/><title>A Good Foundation</title><creator>Integrated Teaching and Learning Program, College of Engineering, </creator><keywords><keyword>bearing pressure</keyword><keyword>bridge</keyword><keyword>deep</keyword><keyword>foundation</keyword><keyword>geology</keyword><keyword>pressure</keyword><keyword>settlement</keyword><keyword>shallow</keyword><keyword>soil</keyword><keyword>structure</keyword></keywords><vocabulary><word>bearing pressure</word><word>deep foundation</word><word>design</word><word>engineer</word><word>foundation</word><word>pile</word><word>pile toe</word><word>settlement</word><word>shallow foundation</word><word>soil</word><word>soil profile</word></vocabulary><summary>Students explore the effects of regional geology on bridge foundation, including the variety of soil conditions found beneath foundations. They learn about shallow and deep foundations, as well as the concepts of bearing pressure and settlement.</summary><engrConnection>The findings from geological site surveys are important to geotechnical and structural engineers who design bridges, buildings and other land structures. These engineers investigate the subsurface conditions of the area and the risks imposed by those conditions on various foundations. Having an understanding of the soil type and geological setting helps engineers select building materials that make a structure more likely to remain standing over time, taking into account technical, economic and environmental factors.</engrConnection><learningObjectives><learningObjective>Define and describe a foundation for a structure.</learningObjective><learningObjective>Describe two basic types of foundations: shallow and deep.</learningObjective><learningObjective>Discuss several factors that engineers must consider when designing foundations for a bridge, include soil conditions, materials and forces.</learningObjective></learningObjectives><timeRequired unit="minutes">20</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Jonathan S. Goode</contributor><contributor>Joe Friedrichsen</contributor><contributor>Natalie Mach</contributor><contributor>Denali Lander</contributor><contributor>Christopher Valenti</contributor><contributor>Denise W. Carlson</contributor><contributor>Malinda Schaefer Zarske</contributor></contributors><references><reference>http://bridgepros.com/</reference><reference>Coduto, Donald P. Foundation Design Principles and Practices, Second Edition. Prentice Hall: Upper Saddle River, NJ, 2001.</reference><reference>Craig, R.F. Soil Mechanics, Sixth Edition. E&amp;FN Spon: New York, NY, 1997.</reference><reference>http://www.dictionary.com</reference><reference>http://www.tfhrc.gov/pubrds/marapr00/landarch.htm</reference><reference>http://www.tfhrc.gov/pubrds/04mar/04.htm</reference></references><eduStandards><eduStandard><id>S11417AB</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>G. Structures rest on a foundation.
</description><lowgrade>6</lowgrade><highgrade>8</highgrade></eduStandard><eduStandard><id>S11417AD</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>I. Buildings generally contain a variety of subsystems.</description><lowgrade>6</lowgrade><highgrade>8</highgrade></eduStandard><eduStandard><id>S11424D2</id><locale>Colorado</locale><type>Science</type><description>a. Predict and evaluate the movement of
an object by examining the forces
applied to it
</description><lowgrade>8</lowgrade><highgrade>8</highgrade></eduStandard></eduStandards><geoCoverage>United States</geoCoverage><rights>Copyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado Boulder</rights><rights>http://www.teachengineering.org/policy_ipp.php</rights><isPartOf>http://www.teachengineering.org/</isPartOf><created type="W3CDTF">2011-11-17</created><gradeLevel lowerbound="6" upperbound="8">8</gradeLevel><audience>Teacher</audience></tem>

