- Thereliabilityofseepagepreventionsystemisakeyproblemforhighrockfilldambuiltonthefoundationoflargeoverburdendepth.Theyieldingzoneoftheanchorgroupsincreaseasoverburdendepthincrease.Theefficiencyofanchorgroupscanbeeliminatedastheanchorsspacingareincreas...
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- ThiskindofstrataisdistributedwidelyintheQuaternaryoverburdenlayerofmountainriverbedsandmountainslopingfield.Applicationofradioisotopeloggingtechniquetothetestingofthecoefficientofpermeabilityintheoverburdenlayersofriverbed...
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- Toweighdownexcessively;overburdenoroppress.Whatcanbedoneiftheoverburdenishardrock?Reasonsforshift&damageofironorebody'soverburdenrockNewdevelopmentinconstructiontechnologyofconcretecut-offwallindeepoverburdenofsandgravelsMicrobialoxidationofores,tai...
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- 1、Theoverburdenpressuresystemisalsointroducedanditcansupplysufficientoverburdenpressureforthecoregripper.2、Theoilshaleonthesurfaceshowopeningfoliation,abundantporevolumeandlowdensitybecauseoflessoverburdenpressure.3、Ofthepressures,theonecausedbyth...
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