UFC 3-220-01N
15 AUGUST 2005
CHAPTER 10
FOUNDATIONS IN EXPANSIVE SOILS
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INTRODUCTION
10-1.1
Purpose. The criteria presented in this UFC are to be used by the
engineer to develop methods and details for repairing existing foundations or design
details for new foundations that are to be constructed in expansive soils.
10-1.2
Scope. Apply criteria to all projects for the military services. The methods
of design for new construction, soil treatments and construction methods for foundations
in expansive soils are presented in detail in the primary references. Give particular
attention if there is any indication of expansive properties since retro-repairs are
severely expensive. The methods for repair of foundations constructed in expansive
soils are explained in detail. This is a very important aspect of expansive soils since so
many existing small buildings, from homes to small apartment complexes, are effected
by expansive soils; therefore, the retrofit methods of repair that have been used to
substantially repair the structures are extremely important to the designer and are
presented in the primary references. Check every project that is earth related for soils
that have properties that potentially, or are, expansive. More damage to roads and
structures is attributed to not addressing this potentially devastating problem
than any other single soil related problem.
10-1.3
References.
See Expansive Soils Publications, ASCE in Appendix A
2000 International Building Code (IBC 2000) Chapter 18
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