高压水流冲洗测压管的实践及颗粒受力分析

THE PRACTICE OF CLEANING WATER INJECTION TUBE BY WATER FLOW WITH HIGH PRESSURE AND THE ANALYSIS OF THE FORCES ON PELLET

观测坝基水压力变化的测压管直径很小,清除测压管内的碎石非常困难,通过各种清除方法的尝试,提供一种效率高的清除方法.实践证明它在工程中是可行的.通过模拟试验观测到了颗粒在管中的运动状态;通过对管中颗粒的运动状态分析,可以解释颗粒排除的现象.

It is very difficult to get rid of the rubbles in the barometer tube, as the diameter of the barometer tube used for monitoring the dam base water pressure is very small. Through various attempts, a very efficient way is found, which is proved workable in practice. Simulated experiments show its clear dynamical states. By analyzing the pellet＇s dynamical states, it is shown that the process of the pellet＇s discharge can be clearly explained.