NUMERICAL MODELING OF STRESS-STRAIN STATE OF MINE BULKHEADS MADE OF CONCRETE BLOCKS UNDER THE IMPACT OF AIR SHOCK WAVE
Abstract
In foreign practice, the use of concrete blocks in combination with various means of mechanization of their laying is quite common for the rapid construction of mine bulkheads. To assess the ability of such a structure to resist the impact of a shock air wave (SAW), the stress-strain state of block bulkheads was simulated using the finite element method at a static pressure of 0.3 MPa. The Aurora Z88 software package with the corresponding model of the bulkhead was used to perform the calculations. Hexahedron No. 1 was adopted as a volumetric finite element, which ensures the calculation of deformation and stress in space using linear shape functions. This element is transformable, therefore, it can have a wedge shape or even an oblique shape. The transformation is isoparametric. The bulkhead model is based on its division into elements represented by two types of materials - concrete (the body of the sides) and mortar filling the interblock joints.
About the Authors
A.N. Domrachev
Siberian State Industrial University
Russian Federation
Russian Federation
S.V. Rib
Siberian State Industrial University
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Review
For citations:
Domrachev A., Rib S. NUMERICAL MODELING OF STRESS-STRAIN STATE OF MINE BULKHEADS MADE OF CONCRETE BLOCKS UNDER THE IMPACT OF AIR SHOCK WAVE. Bulletin of the Siberian State Industrial University. 2015;(4):17-21. (In Russ.)
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