Update LADOTD policy on pile driving vibration management : tech summary.
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2012-02-01
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Abstract:Piles have often been used to transfer heavy loads to stronger soil strata or temporarily retain earth or water in highway and bridge
construction. The Louisiana Department of Transportation and Development (LADOTD) spends millions of dollars annually on pile
foundations. Despite the advantages of driven piles, their installation can cause the surrounding ground to vibrate. The intensity of
the vibration depends on the physical properties of the pile (material, weight, length, size, etc.); pile installation method; and the
soil (type, density, water content, etc.). Depending on the intensity of ground vibration, it can occasionally cause varying degrees of
damage to adjacent buildings and structures or becomes annoying to occupants of the buildings. According to a survey conducted
by Woods, 28 State Departments of Transportation (DOTs) and 26 pile driving contractors had experience with vibration claims from
driving various piles. In addition, poor public relations or even litigations can result from pile driving operations. Thus, it is imperative
for all parties involved in pile driving to have a rational risk management plan that addresses concerns and problems associate with pile
driving vibrations.
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