Assessment of stratification of the breeds of the underground cavity roof
| Autor: | Vitaly Trofimov, Tamara Makeeva |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
geography
geography.geographical_feature_category 0211 other engineering and technologies Stratification (water) Boundary (topology) Geometry 02 engineering and technology Massif Durability Environmental sciences Tension (geology) Ultimate tensile strength GE1-350 021108 energy Closing (morphology) Roof Geology 021101 geological & geomatics engineering |
| Zdroj: | E3S Web of Conferences, Vol 258, p 04009 (2021) |
| ISSN: | 2267-1242 |
| DOI: | 10.1051/e3sconf/202125804009 |
| Popis: | Authors of the research consider the approach to the assessment of possibility of formation of stratification and shift cracks in the roof of extended horizontal cavity, based on the method of boundary elements. The algorithm implements the iterative procedure of variation of the formed crack length with control of tension in its tip. At the same time, the angle of the crack coasts closing is defined by the tensile strength of the layer material. The crack with smooth closing of coasts is formed in case of equality to zero this durability. The mechanism of failure forming over the developed space with vertical pipe type walls is considered. The results received by the authors, can be useful as the offered approach allows to model the destructions localization in the massif of rocks, location and sizes of the arising cracks of stretching and shift if there are strength defects in the massif |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|