Determination of stresses in concrete lining with rock-bolt in case of exhaustion of rock-bolt supporting strength

Marianna Pleshko, Ivan Shornikov, A. Zhussupbekov, C. Yoo, S. Kudryavtsev
2019 MATEC Web of Conferences  
The article deals with the solution of analytical problem of flat axisymmetric elasticity theory, when rock-bolt supporting strength is exhausted. Expression for determination of stresses in concrete lining is deduced, where pressure increasing at exploitation have regarded. This methodology can be used at blueprint stage and preliminary calculation during mining operations. Further evaluation of concrete lining strength and geophysical probe of rock is needed for the preliminary calculation.
more » ... nary calculation. This study is based on universality accepted analytical calculation of lining in plane method [11] [12] [13] [14] [15] [16] . After lining setting and shaft bottom removal, the system "concrete liningrock-bolt support -rock mass" is setting up and can be submit in computational model ( fig. 1 ).
doi:10.1051/matecconf/201926505034 fatcat:qm3vhycq7fgn3jwzqyy53nyabm