Перегляд по темі "rocks"
Зараз показуються 1-9 з 9
-
Experimental research on the haulage drifts stability in steeply dipping seams
(Dnipro University of Technology, 2021-12-30)Purpose. Substantiation of the conditions for haulage drifts stability using different protection methods in steeply dipping seams based on a set of experimental studies. Methods. To achieve the purpose set, mine ... -
Gravitational and tectonic stresses in the rock mass and their determination by measurements in separate points
(National Mining University, 2017-09-30)Purpose. Stress state in rock mass is the most important factor affecting processes around mine working. The methods used for calculation of stresses based on hypotheses of elastic thrust, hydrostatic state or spherical ... -
Improvement of the mine technical safety for the underground workings
(2019)The main scientific and practical results of studies related to mine technical safety improvement for the underground workings based on the processes of structuring the massif under the conditions of rocks zonal disintegration ... -
Laboratory studies of a high-strength roof bolting by means of self-extending mixtures
(National Mining University, 2019-06-30)Purpose is to analyze parameters of a new method to fasten roof bolts with the help of nonadhesive mixtures extending while hardening along with the development of high expansion pressures. Methods. The research, concerning ... -
Local reinforcing of footing supported in the destroyed rock massif
(National Mining University, 2017-03-30)Purpose. Justification of feasibility of non-explosive destruction of hard rock during in-seam workings based on the obtained dependences related to changes of physical and mechanical properties of non-explosive destructive ... -
Numerical experiments concerning long-term deformation of rock samples
(National Mining University, 2019-12-30)Purpose is to develop modeling methods of long-term rock sample deformation and failure under various loading conditions with the help of finite-element method of failure rock modeling (DESTROCK-FE). Methods. DESTROCK-FE ... -
Studies of new nonadhesive anchoring
(National Mining University, 2018-06-30)Purpose is to develop anchoring with nonadhesive high-strength roof bolting in terms of large pre-destructive deformations and its testing under laboratory conditions. Methods. Laboratory studies of hydration hardening ... -
Technical and technological aspects of the coal mine closure based on the geomechanical component assessment
(Dnipro University of Technology, 2021-09-30)Purpose. Development of a comprehensive methodology for assessing the state of mine workings based on the analysis of their contour displacement patterns when solving the problem of minimizing the risks during the closure ... -
Обгрунтування моделі геологічної будови на площі ділянки навчально-наукової експедиції в Західному Приазов'ї
(Журфонд, 2021)Запропоновано модель геологічної будови ділянки проведення навчальнонаукової експедиції (Західне Приазов'я) з метою спрощення і використання для проведення геолого-знімальних робіт студентами вищих навчальних закладів, ...