Mechanical characteristics of dip basement effects on dump stability in the Shengli open pit mine in Inner Mongolia, China
| Autor: | Ji-sen Shu, Liu Han, Hongwen Jing, Qingxiang Cai, Hua Tian |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
education
0211 other engineering and technologies Open-pit mining 02 engineering and technology Fault (geology) 010502 geochemistry & geophysics Inner mongolia complex mixtures 01 natural sciences Waste Dumps Mining engineering Waste dump Geotechnical engineering 021101 geological & geomatics engineering 0105 earth and related environmental sciences General Environmental Science geography geography.geographical_feature_category business.industry Landslide Basement Key factors General Earth and Planetary Sciences business human activities Geology |
| Zdroj: | Arabian Journal of Geosciences. 9 |
| ISSN: | 1866-7538 1866-7511 |
| DOI: | 10.1007/s12517-016-2774-2 |
| Popis: | For waste dump slopes that form basements, landslides can be prevented by determining a stability evolving law of dynamic development. Keeping this issue in mind, the relationship between the mechanical structure and stability of waste dumps with basements is studied. Three key factors that influence waste dump stability are presented, and judgment criteria for self-locking and unlocking states of dump basements are provided. From the friction coefficient of waste dump basement stability analyses of the Shengli open pit mine, the results indicate that waste dump basements on the right side of fault F8 and on the left side of fault F61 are subjected to self-locking. However, between faults F61 and F8, the basement is subjected to unlocking. Regarding the residual thrusting of unlocking areas, structure and stability optimization schemes for waste dumps in the Shengli open pit mine are provided through a mechanics analysis. Reducing the slopes and basement angles of waste dumps can enhance their stability by increasing basement roughness levels. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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