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Numeryczna analiza wpływu własności skał stropowych na możliwości ograniczenia ich opadu w wyrobisku ścianowym
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tomiczek, Krzysztof |
| Copyright Year | 2017 |
| Abstract | One of the primary factors affecting the safety and permanence of the process of longwall mining excavation is to ensure the stability of rocks occurring in the roof and in the working face in front of the roof bar of the powered roof support and the prevention of uncontrolled roof fall to the free working face. Based on the examples of the operation of three longwalls with roof caving: S-2, S-3 and S4 on 403/1 coal bed were conducted simplified numerical analysis using the finite difference program FLAC2D (Itasca CG). The influence of properties of roof rock and coal to propagation of areas plasticity and damage of rocks in front of and above the working face. The analyzes conducted negative verification of activities carried out so far causing the weakening of the rock and pointed need of such tending to strengthen it. |
| Starting Page | 274 |
| Ending Page | 284 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://wydawnictwo.panova.pl/attachments/article/597/R24.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
