ĐỊA CHẤT THỦY VĂN
VÀ THOÁT NƯỚC MỎ
BÀI GIẢNG MÔN HỌC
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Saltwater contamination
due
to excessive well pumping
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Sinkholes in Urban Settings
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Cao: 55.86 m
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– In coastal areas, land subsidence may even make the
land surface sink below sea level
• The flooding in Venice, Italy, is due to land subsidence
accompanying the withdrawal of groundwater
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• If the boundary between the fresh groundwater and the
saline water rises above the base of the well, the well will
start to yield useless saline water
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• What happens when this well is heavily
pumped?
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slide 22
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slide 23
Cones of Depression
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19_20ab.jpg
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