Now showing items 1-5 of 5
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 ...
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 ...
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 ...
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 ...
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 ...