Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Support of underground workings by means of reinforced concrete roof bolts and sprayed concrete
In apatite Kirov mine total length of underground workings driven each year is over 30 km; 20% of this length requires supporting; reinforced concrete roof bolts are 1.5 m long and thickness of sprayed concrete lining is 5-7.5 cm.
Support of underground workings by means of reinforced concrete roof bolts and sprayed concrete
In apatite Kirov mine total length of underground workings driven each year is over 30 km; 20% of this length requires supporting; reinforced concrete roof bolts are 1.5 m long and thickness of sprayed concrete lining is 5-7.5 cm.
Support of underground workings by means of reinforced concrete roof bolts and sprayed concrete
Kreplenie vyrabotok zhelezobetonnymi shtangami i nabryzg-betonom
Pazavin, V.I. (Autor:in) / Gubenin, Yu.B. (Autor:in)
1964
3 pages
Aufsatz (Zeitschrift)
Russisch
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Roof supports based on sprayed concrete
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