Перегляд Volume 10, Issue 3 по темі "stress"
Зараз показуються 1-2 з 2
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Method of simulating rock mass stability in laboratory conditions using equivalent materials
(National Mining University, 2016-09-30)Purpose. To determine the qualitative composition of the equivalent material of a laboratory model representing Kryvyi Rih iron-ore basin ground, as well as to develop a method to determine its quantitative composition for ... -
The impact of vibration mechanism’ installation place on the process of retrieving stuck drill pipe
(National Mining University, 2016-09-30)Purpose. The present paper studies the dependence of the dynamic oscillatory movements in the area of drill string sticking on the parameters of vibrating mechanism and place of its installation in the heavy weight drill ...