STUDY OF REGULARITIES OF CHANGES IN STRESS-STRAIN STATE OF COAL ROCK MASS IN FRACTURED ZONES
V. F. Demin1, N. A. Nemova2
1Karaganda State Technical University, Karaganda, Kazakhstan
2Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Бесцеликовая технология, геомеханические факторы, технологические факторы, условные зоны, неупругие деформации, газовое давление, Pillarless technology, geomechanical factors, engineering factors, conventional zones, inelastic deformations, gas pressure
Abstract
The regularities of changes in the stress-strain state of coal in rock mass depending on the main mining geological and engineering factors are identified. Using these factors, it is possible to find the optimal support parameters in specific conditions to increase the stability of preparatory mine workings. The degree of influence of mining and engineering conditions of exploitation on displacements in marginal rocks with various types of support in excavation workings is investigated.
|
