A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Roof sewing
Roof sewing involves drilling hole 2 to 3 m deep, inserting wire rope, inserting short pipe connected to grouting pump, inserting Silex plug, and grouting hole with concrete gun at 300 lb pressure; method is used where conventional bolt is insufficient.
Roof sewing
Roof sewing involves drilling hole 2 to 3 m deep, inserting wire rope, inserting short pipe connected to grouting pump, inserting Silex plug, and grouting hole with concrete gun at 300 lb pressure; method is used where conventional bolt is insufficient.
Roof sewing
Eng Min J
Austin, C.C. (author) / Troften, E. (author)
1953
Article (Journal)
English
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