Search
Results:
Vol. 10 (2007 year), No. 2
Lovchikov A.V., Udalov A.E., Belyavsky Yu.G.
The stressed state of rocks in the upper crust from the in-situ measurements at the mines near SG-3
Elastic wave velocities in rock deep samples with increasing loads from barometric pressure to 600 MPa and temperature to 600В° C have been determined. Experimentally determined velocities in situ correlate well with the data of vertical seismic profiling performed in the Kola Superdeep Borehole. The correlation between these data will be more complete if the velocity anisotropy of rocks in situ is taken in consideration.
(in Russian, стр.6, fig. 4, tables. 3, ref 4, Adobe PDF, Adobe PDF 0 Kb)
Vol. 11 (2008 year), No. 3
Lovchikov A.V.
Mine-tectonic rock bursts at the Lovozersky rare-metal deposit
The paper is devoted to the description of a new method for the experimental research of chaotic processes based on the modern methods of time-frequency analysis with high resolution. The method does not demand power estimations of a spectrum. The method is based on the analysis of form similarity between a signal and clear sinusoid with certain frequency (form-analysis) that leads to the high method's resistant to noise and to trends. In the experiment the substantive theses of the nonlinear theory of determinate chaos have been confirmed. The new effects, which have been not described earlier, have been shown in the theory. Prospects of use of the form-analysis in various spheres of knowledge have been shown.
(in Russian, стр.8, fig. 4, tables. 1, ref 7, Adobe PDF, Adobe PDF 0 Kb)
Vol. 16 (2013 year), No. 4
Lovchikov A.V., Savchenko S.N.
Stress state of rocks near stope in the "Karnasurt" mine
The stress state of stope workings of the "Karnasurt" mine has been studied using numerical modelling. The "Karnasurt" mine develops thin flat-dipping ore deposits by systems with open stoping and without failures and flushing of workings. Modelling has been carried out under gravitational and gravity-tectonic stress state of the rock mass. It has been established that stability of the large-span stope workings is provided, mainly, due to action of large tectonic stresses of subhorizontal direction.
(in Russian, стр.7, fig. 6, tables. 1, ref 6, Adobe PDF, Adobe PDF 0 Kb)