Modelisation of fractured rock mass for open pit mining in Vietnam

  • Affiliations:

    1 Mining Faculty, Hanoi University of Mining and Geology, Vietnam
    2 Warsaw University of Life Sciences, Poland

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  • Received: 8th-Sept-2020
  • Revised: 24th-Sept-2020
  • Accepted: 10th-Oct-2020
  • Online: 15th-Oct-2020
Pages: 80 - 96
Views: 1719
Downloads: 770
Rating: 5.0, Total rating: 76
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Abstract:

In open pit mining, besides the value of the minerals obtained, the cost of waste rock removal determines the efficiency of the mining operation. The paper introduces the rock mass data processing method and modelisation of fractured rock mass to serve the optimal calculation of technological stages in mining. This code is a discrete fracture network (DFN) code that couple geometrical block system construction based on modelisation stochastic with RESOBLOK simulations. The method of three-dimensional modeling (3D) of the fractured rock mass in the quarry is based on the rock mass data, the geometrical parameters of the open pit mine. From there, the rock mass simulation models were used in the analysis of the stability analysis of open pit benches, the optimization of the blast design parameters at overburden benches, project construction materials, and technology projects for block stone extraction. An application in some open pit mines such as quarries of Vietnam is presented.

How to Cite
Nguyen, T.Anh, Pham, V.Van, Bui, N.Xuan, Le, H.Thu Thi, Le, H.Thi, Tran, B.Dinh and ., H.Minh Thi Le 2020. Modelisation of fractured rock mass for open pit mining in Vietnam (in Vietnamese). Journal of Mining and Earth Sciences. 61, 5 (Oct, 2020), 80-96. DOI:https://doi.org/10.46326/JMES.KTLT2020.07.
References

A. T. Nguyen, V. Merrien-Soukatchoff, M. Vinches và M. Gasc-Barbier, (2016). Grouping discontinuities in representative sets: influence on the stability analysis of slope cuts. Bulletin of Engineering Geology and the Environment, 75(4), tr. 1429–1444.

Dershowitz, W. S., Einstein, H. H., (1988). Characterizing rock joint geometry with joint system models. Rock Mechanics and Rock Engineering, 21(1), tr. 21–51.

Heliot, D., (1988). Generating a blocky rock mass. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 25(3), tr. 127–138.

Jing, L., (2000). Block system construction for three-dimensional discrete element models of fractured rocks. International Journal of Rock Mechanics and Mining Sciences, 37(4), tr. 645–659.

Lin, D., Fairhurst, C. và Starfield, A.M., (1987). Geometrical identification of three-dimensional rock block systems using topological techniques. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 24(6), tr. 331–338.

Lu, J., (2002). Systematic identification of polyhedral rock blocks with arbitrary joints and faults. Computers and Geotechnics, 29(1), tr. 49–72.

Nguyen, A.T., Merrien-Soukatchoff, V. và Vinches, M., (2014). Grouping discontinuities of fractured rock mass into main sets : consequences on the stability analysis of open pit benches. In D. 2014, ed. DFNE 2014. Vancouver, Canada, tr. 1–8.

Nguyễn Anh Tuấn, Trần Quang Hiếu, Phạm Văn Việt, (2016). Công nghệ khai thác đá khối tiên tiến. Nhà xuất bản Khoa học Tự nhiên và Công nghệ, Hà Nội.

Priest, S., (1993). Discontinuity analysis for rock engineering, Chapman & Hall.

Riccardo Salvini, Giovanni Mastrorocco, Marcello Seddaiu, Damiano Rossi và Claudio Vanneschi, (2016). The use of an unmanned aerial vehicle for fracture mapping within a marble quarry (Carrara, Italy): photogrammetry and discrete fracture network modelling. Geomatics, Natural Hazards and Risk, 8(1), tr. 34-52.

S. Mosch, D. Nikolayew, O. Ewiak và S. Siegesmund, (2011). Optimized extraction of dimension stone blocks. Environmental Earth Sciences, 63(7), tr. 1911–1924.

Sousa, L. M. O., Oliveira, A. S., Alves, I. M. C., (2016). Influence of fracture system on the exploitation of building stones: the case of the Mondim de Basto granite (north Portugal). Environmental Earth Sciences, 75(1), tr. 1–16.