专业英语presentation-the-leaning-tower-of-pisa(比萨斜塔)

TheLeaningTowerofPisaOutlineIntroductionHistoryofPisaRescueofTheTowerSpecificMeasureReasonofLeaningOtherleaningtowersIntroductionBuiltin1173OneofthethreelargestconstructionThesymbolofPisaWorldHeritageHistoryofPisaIn1173…..1178…1231…1360…ReasonofLeaningIn14thcenturyIn20thcenturyThereasonofleaningThereasonofrapidlytiltRescueofTheTowerSubgrade-stressrelieving※WhatisSubgrade-stressrelieving?※Whatistheconcretemeasure?WhatisSubgrade-stressRelievingMakeuseofgravity.Setuplargedeepdrillingrowsalongtheedgethebasaloutline,onthelessobliqueside.Takeoutweakbasesoilthroughtherowsinproperpositions.Keeptheoppositesidefromdisturbance.SpecificMeasureStrengthenthelowesttwolayerswithprestressedreinforcement.Placeleadpoundsonthelessobliqueside.Installtwosteelcablesaroundthemiddleofthetower.Takeoutsoilthroughtherows.OtherLeaningTowersPisaofChinaHuqiuTower(CHN)World'smostinclinedtowerSuurhusenLeaningTower(GER)HuqiuTower(CHN)SuurhusenTower(GER)