一、前言葛洲坝水利枢纽二江泄水闸及三江冲砂闸,孔口尺寸大,弧形门轴推力高,闸墩结构采用大吨位预应力高强钢丝锚束,预应力锚束国内虽有采用,但大吨位预应力锚束用于水工建筑物闸墩结构,在国内尚系初次采用,本文系综合介绍对葛洲坝水利枢纽闸墩预应力钢丝锚束所进行的若干主要问题的试验与研究。 I. INTRODUCTION Gezhouba Water Conservancy Project, the second Jiangkou sluice and the Sanjiang red sand sluice have large orifice size and high thrust of the arc-shaped door shaft. Large-tonnage prestressed high-strength steel wire anchor bundles are used in the pier structure. Although the prestressed anchor bundles are used in China, However, large tonnage of prestressed anchor beam is applied to the pier structure of hydraulic structures, which is still the first time adopted in China. This paper comprehensively introduces the test and research on some major problems of prestressed steel wire anchorage of Gezhouba Project.