Ensuring Sustainability of Preparatory and Permanent Mining Workings in Deep Mines of Bump-hazardous Deposits

Trushko, Olga

doi:10.13005/bbra/1714

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In mine bis such rocks are 6% only, so the portion of workings with undamaged supports decreased to 34%. In mine bis, 34% of sites by C s criterion are classified as IV category of stability, 49% -II category 20 .…”

Section: Discussionmentioning

confidence: 99%

Assessment of Geodynamical Stability of Mine Workings in Rock ORE

Trushko¹,

Потемкин²

2015

Biosci., Biotech. Res. Asia

View full text Add to dashboard Cite

This paper studied the global methods to determine the geodynamical stability of mine workings in the conditions of dynamic forms of rock pressure during the development of deep horizons of mines. It was found that the available approaches to the assessment of stability and classification of rock outcropping require further development as they do not give quantity assessment of rock fragmentation at all stages of deformation near mine workings and do not account for mechanics of rocks during dynamic impact and the ability to control mechanical processes in rock mass at before-and over-limit deformation stages. On the basis of experimental research done at Russian mines of OAO Sevuralboksitruda it was found that the nature of rock fragmentation in the border zone depends on the parameters of seismic waves which are in turn caused by the energy of the dynamic effects. Energy classification of dynamic effects was developed, most fully disclosing the nature of dynamic impact on mine workings, improved strength criterion was offered and operational condition of mine workings was determined.

show abstract

Section: Discussionmentioning

confidence: 99%

Assessment of Geodynamical Stability of Mine Workings in Rock ORE

Trushko¹,

Потемкин²

2015

Biosci., Biotech. Res. Asia

View full text Add to dashboard Cite

show abstract

“…These tables were used to determine the liberation of sylvinite in potash ore. The liberation ratio is calculated as the ratio of the amount of sylvinite in its free form to its total amount in the sample (in its free form and it the form of aggregates) expressed in percentage [1,2]. It is possible to select the efficient technology for processing of potash ores [5,6] based on the liberation ratio, mechanical properties and mining system [3,4].…”

Section: Methodsmentioning

confidence: 99%

Mechanical Properties and Mineralogical Composition of Potash Ore as a Factor in Selecting the Processing Method

Kuskova

Lipnitsky²

2021

MSF

View full text Add to dashboard Cite

The correct selection of technology for processing potash ore depends on its mineralogical composition, the natural size and shape of grains, as well as on the amount and size of halite grains located in the intergranular space of sylvinites. The study of seams and mineralogical and petrographic studies of potash ore were carried out in order to determine the natural size of sylvinite grains, their shape, and the content of halite in the intergranular space.Moreover, the influence of these parameters on the beneficiation ability of the ore using dry cleaning process was determined. In addition, the data on laboratory studies using electric separation is provided in the paper. The results of the provided studies can be used by specialists of the mining industry when considering the influence of the mineral composition, size and shape of grains of potash ore in order to select the separation method at the early stages of development of potash deposits. The study of core material and mechanical properties, mineralogical and petrographic studies together with studies on beneficiation ability of ore presented in the article can be used, for example, in the preparation of a feasibility report.

show abstract