<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">caisson piles</topic></authority><related type="broader"><topic>cast-in-place piles</topic></related><variant type="other"><topic>caisson pile</topic></variant><variant type="other"><topic>piles, caisson</topic></variant> <note xml:lang="en"><![CDATA[ Piles formed by driving a hollow tube into the ground, excavating within the tube, and filling it with concrete. ]]></note></mads>