分析了裂缝灌缝技术，提出了根据裂缝形状确定是否开槽灌封的建议，提出开槽形状应采用圆形、椭圆形槽形。
The paper analyses crack repairing measure, puts forward that the notching should be confirmed by the crack shape and the shape should be designed with circle, ellipse.
普通开槽方法需多次重复操作，无法一次成形状，操作繁琐，槽形混乱？
Ordinary slotting method need to repeat the operation, can not be a shape, the operation is complicated, the groove of chaos?
当头部形状或开槽宽度不合适时，中间开槽不但不能提高颤振临界风速，反而降低了断面的颤振稳定性。
When the head's shape or width of central slot is unsuitable, central slot decreases critical flutter wind speed instead of increasing it.
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