· bolt is used as an injection rod for grouting purposes. ith the future that the lost drilling...

4

Transcript of  · bolt is used as an injection rod for grouting purposes. ith the future that the lost drilling...

Page 1:  · bolt is used as an injection rod for grouting purposes. ith the future that the lost drilling bit is predesigned with holes to aid grouting. This unique fca- ture makes construction
Page 2:  · bolt is used as an injection rod for grouting purposes. ith the future that the lost drilling bit is predesigned with holes to aid grouting. This unique fca- ture makes construction
Page 3:  · bolt is used as an injection rod for grouting purposes. ith the future that the lost drilling bit is predesigned with holes to aid grouting. This unique fca- ture makes construction
Page 4:  · bolt is used as an injection rod for grouting purposes. ith the future that the lost drilling bit is predesigned with holes to aid grouting. This unique fca- ture makes construction