Brittle and Quasi-Brittle Fracture of Geomaterials with Circular Hole in Nonuniform CompressionSoviet Mining - - 2020
S. V. Suknev
The author studies the influence exerted by the boundary conditions and diameter of a circular hole on tensile fracture initiation in brittle and quasi-brittle geomaterials subjected to nonuniform compression with regard to the size effect. The calculation of the critical stress uses the modified nonlocal and gradient fracture criteria. The calculation results are compared with the experimental da...... hiện toàn bộ
Use of Zeolite Rocks in Metal Recovery from Mine WaterSoviet Mining - Tập 53 - Trang 915-924 - 2018
O. V. Eremin, E. S. Epova, R. A. Filenko, O. S. Rusal’, V. A. Bychinsky
Mine water at some mineral deposits in Transbaikalia contains valued metals commercially recoverable from solutions using zeolite rocks. Experimental impregnation of metal-bearing mine water from Sherlovaya Gora and Bom-Gorphon areas with sodium and ammonium kinds of clinoptilolite rocks from shivyrtuin deposit has been carried out. In the laboratory conditions, metals adsorbed by zeolite rocks ar...... hiện toàn bộ