渗压观测井是闸坝等水工建筑物进行渗透观测的主要措施。目前河南沿黄涵闸绝大部分渗压井均有不同程度的堵塞,许多观测井建后未能取得渗压资料。张菜园闸管理段为了使观测井起死回生,经过艰苦探索,研制成一种渗压管清碍器。1986年3月中旬对共产主义闸 Seepage observation wells are the main measures for seepage observation of hydraulic structures such as sluices. At present, most of the seepage pressure wells along the Yellow Culvert in Henan Province have different degrees of blockage, and many observation wells have failed to obtain the seepage pressure data after their construction. Zhang Caiyuan brake management section in order to make the observation well to revive, after arduous exploration, developed into a seepage tube obstruction. In mid-March 1986 on the communist gate