三峡工程左非8号坝段上游面裂缝处理

The crack treatment on the upstream surface of the left-8 dam section of Three Gorges Project

在2001年冬季三峡主体工程混凝土裂缝普查中,发现左非8号坝段上游面发生6条裂缝。为此对裂缝进行了检查,确定了裂缝的宽度、深度及其分布。根据裂缝类型,采取了打封闭孔、灌浆、充填粘贴和浇筑混凝土保护板等措施,效果很好,防止了裂缝的进一步扩展。

In the concrete crack survey on the main works of the Three Gorges Project in the winter of 2001, it is found that there are 6 cracks on the upstream surface of the left8 dam section. The cracks are carefully checked in order to make clear their width, depth and distribution. According to the crack types, the measures such as closing hole, grouting, filling bonding materials and pouring concrete protective sheet, etc. have been taken to avoid the further development of the cracks and good effectiveness has been gained.