Soils and sediments cemented with consispng of

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Unformatted text preview: with high Seismic Risk ConstrucKon on Frozen Ground with high Seismic Risk Soil Subsidence 1.  Rapidly deposited sediment, marine clays 2.  Soils and sediments containing liquids §༊  §༊  §༊  §༊  Wetlands Groundwater Oil Ice 3.  Soils and sediments cemented with / consisPng of soluble minerals Fluid Withdrawal Groundwater Pumping / Mining Once pore space has collapsed, cannot be regained even when extracPon ceases Groundwater Mining Fissures Groundwater Mining San Joaquin Valley, CA Venice, Italy p. 237 Subsidence Due to Groundwater ExtracKon: Venice, Italy §༊  §༊  Built at sea level on now- submerged Brenta River delta Subsidence mostly caused by extracPon of groundwater from delta sediments §༊  §༊  §༊  §༊  High Pdes of winter storms compound problem Drainage pipes carry effluent back into city...
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