Zobrazeno 1 - 1
of 1
pro vyhledávání: '"G. N. Ratskevich"'
Publikováno v:
Soviet Mining Science. 21:522-528
A process has been developed for reinforcing the walls of ground tunnels which, on analogy with the ''in-the-ground'' method, is called ''pipe-in-the-ground'' method. The process consists of three operations: drilling a hole, filling the hole with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ff9de275e795901e5bca63c0a358f76
https://doi.org/10.1007/bf02499801
https://doi.org/10.1007/bf02499801
