The expansion joints on both sides of damblock no. 26 exhibit an abnormal behavior after 12 years' operation.
黄坛口大坝26号坝段二侧伸缩缝在蓄水运行多年后发生异常变形。
2
22 damblock as a typical object, a stress recheck was conducted to demonstrate the current safety of the pre-stressed pier using a 3-d finite element method.
And base on the experiment, calculating formula of cross section mean velocity's reduction after planting and bed shears stress of vegetation damblock are established.