Stability study of the mine overburden dumps slope: a micromechanical approach

• Autorzy: Koner R. , Chakravarty D.
• Języki publikacji: EN

Abstrakty

EN

Discontinuum based particle-particle interaction mechanics is applied to the modeling of waste composed of fragmented rock and loose soil produced at the opencast coal mines. The distinct element method considered the discrete nature of geomaterials and represented them with bonded and unbonded matrix assembly. The overburden dump material is studied with laboratory test of synthetic material, similar to physical testing and calibration done through that. The next part focused on the static stability characteristics of the overburden dumps with heavily joint set and performance study was done on the ability to model it. The location of sliding is visualized via numerical code. The last part deals with the performance characteristics of the overburden dumps under seismic loads. The history of the responses at monitoring points is studied for interpretation of the dynamic behavior of the overburden dump mass. The responses are used to determine the natural frequency of the overburden dumps, damping fraction and the phase difference at two sides of the dumps mass. The results obtained match well with fundamental concept of the vibration theory.

Słowa kluczowe

PL

stateczność skarp; nadkład; badanie stateczności

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2010
• Tom: Vol. 32, nr 1
• Strony: 35--57
• Opis fizyczny: bibliogr. 33 poz

Twórcy

autor

Koner R.

autor

Chakravarty D.

• Indian Institute of Technology, Kharagpur, India

Bibliografia

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