| 词汇 | caisson |
| 释义 | caisson noun[ C ] uk /ˈkeɪ.sən/ us /ˈkeɪ.sən/ caissonnoun[C] (STRUCTURE)engineering specialized a structure that goes under water or under ground and keeps water out, used in building and repairing things such as bridges: （水下作业用的）沉箱 The tower rests on caissons reaching down 110 feet into bedrock.塔身建于沉箱之上，而沉箱位于110英尺深的水下基岩上。 duncan1890/DigitalVision Vectors/Getty Images /GettyImages Thousands of people worked on the Brooklyn Bridge. Many bodies are buried underneath those caissons. The foundation work, which involves drilling 34 steel and concrete caissons, is expected to take a year. 190,000 cubic yards of concrete went into the bridge's anchorages, caissons, towers and highway approaches. The Jefferson Memorial was built in the late 1930s and early 1940s atop pilings and caissons sunk into an artificial mud flat that is about 100 feet deep. Civil engineering in general brownfield built environment civil engineer civil engineering geotechnical geotechnology lineman linesman planning planning permission purpose-built quantity surveyor reclamation redevelop structural engineer subsea surveyor town planner town planning trig point caissonnoun[C] (BOX)military specialized in the past, a large box or a vehicle pulled by a horse, used for carrying ammunition(= bullets, etc.) needed for a battle（旧时的）弹药箱 NoDerog/iStock/Getty Images Plus/GettyImages A caisson is the horse-drawn vehicle that once carried ammunition in battle and carries coffins afterward. There were caissons loaded with cartridges, musket balls and flints. For officers of the rank of colonel or higher, a riderless horse follows the caisson to the gravesite. The dead carried from the battlefield on a caisson were covered with a flag. |
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