关于输水工程中土压力对镇墩稳定计算影响的分析

Effect of Earth Pressure on Anchor Block Stability Calculation in Water Conveyance Project

镇墩一般应用在压力管道方向改变、管径渐变及管道端头位置,用来限制接头移动,在工程中应用广泛。在以往工程中进行镇墩稳定分析时,忽略了土压力对镇墩的影响。文中选取输水埋管在水平转弯处设置镇墩的情况,说明在考虑被动土压力后可以大大减小镇墩的体积从而节省投资。

Anchor block that is commonly used in changed position of the pressure piping direction,gradually varied position of the pipe diameter and pipeline end position has been widely applied in projects to restrict joint movement.However,the anchor block stability analysis in previous projects ignored the effect of earth pressure on anchor block.The situation of setting anchor block at the elbow of the water delivery buried pipe was taken as an example. The results show that the anchor block volume could be greatly reduced after considering passive earth pressure,and the investment could be reduced.