Comparative Analysis on Bank Slope Stability of Drainage Channel Before and After Widening and Dredging
Relying on the dredging project of Fengmen River in Lucheng District,Wenzhou,numerical simulation analysis of the bank slope stability before and after the widening was carried out by using Geo-studio software so as to find out the changing regularity of bank slope stability of the drainage channel before and after dredging and widening.The research found that the bank slope safety factor of the original channel still had a distribution within the interval below the specified safety factor,indicating potential collapse risk.However,after the dred-ging and widening,the bank slope safety factors of the channel were all within the safe range,indicating that the river channel has achieved sufficient stability.After the excavation and widening,the sensitivity of the bank slope stability to water level changes decreased.Only when the water level exceeded an elevation of 3.7 meters did the stability of the slope significantly change.Through analysis,it was concluded that the dredging and widening sig-nificantly enhanced the bank slope stability of the drainage channel,effectively reducing the sensitivity of the slope stability to water level changes.
widening and dredgingbank slope stabilitywater level changesseepage
万方数据
维普
