UFC 3-220-01N
15 AUGUST 2005
CHAPTER 9
DEWATERING AND GROUNDWATER CONTROL
9-1
INTRODUCTION
9-1.1
Purpose. The criteria presented in this UFC are to be used by the
engineer to develop methods and details to dewater or control groundwater during
construction of excavations, walls, slopes and foundations. Methods of erosion control
in open excavations, control of groundwater during construction and control of
groundwater in completed structures are presented.
9-1.2
Scope. Apply these Geotechnical criteria to all projects for the military
services. Methods of calculating the amount of ground water runoff, how to control
groundwater by several methods are presented, and the safety aspects can be
determined. The following topics are discussed in the reference.
Excavations requiring drainage
Seepage control
Seepage cutoffs
Control of surface waters
Sheet-pile cofferdams
Foundation underdrainage and waterproofing.
9-1.3
References.
UFC 3-220-05, Dewatering and Groundwater Control
9-1.4
Secondary.
UFC 3-220-10N, Soil Mechanics
9-1
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