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File: Dewatering
9. DEWATERING – CONTROL OF GROUNDWATER Construction of buildings, powerhouses, dams, locks and many other structures requires excavation below the water table into water-bearing soils. Such excavations require lowering the ...

icon picture PDF Filetype PDF | Posted on 15 Sep 2022 | 2 years ago
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...Dewatering control of groundwater construction buildings powerhouses dams locks and many other structures requires excavation below the water table into bearing soils such excavations require lowering slopes bottom to prevent raveling or sloughing slope ensure dry firm working conditions for operations can be controlled by means one more types systems appropriate size depth geological characteristics soil sites are dewatered following purposes provide suitable surface stabilize banks thus avoiding hazards slides disturbance at caused boils piping disturbances may reduce power also utilized increase effective weight consolidate layers reducing lateral loads on sheeting bracing is another way use a number methods available controlling inflow an choice method will depend nature permeability ground extent area level amount which it has lowered proposed support proximity existing courses etc fall basic groups like ditches training walls embankments simple diverting open pumping equipment gr...
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