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Year 2022
 
Issue 6 [12 - 2022], Year XXXI

Pit slope stability analysis for Granite quarries on the basic of considering the degree of rock fracture

https://mij.hoimovietnam.vn/en/archives?article=22063

  • Affiliations:

    1 Trường Đại học Mỏ Địa-Chất
    2 Sở Tài nguyên và Môi trường Bình Định
    3 Sở Xây dựng Bình Định Phan Hồng Việt 4
    4 Sở Công thương Bình Dương

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  • Received: 12th-July-2022
  • Revised: 20th-Aug-2022
  • Accepted: 12th-Sept-2022
  • Online: 31st-Dec-2022
Pages: 16 - 23
Views: 86
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Abstract:

Nowadays, due to the market demand for dimension stone, dimension stone quarries have been exploited more and more deeply with the large height and the large angle of pit slope in fractured rock mass, causing more risk in quarrying operation. The paper proposes analysis of pit slope stablity for dimension stone quarries in various fractured rock mass measured through Geology Strenght Index (GSI). The pit-slope geometry parameters were collected at the field by Unman Aerial Vehicle (UAV). The pit slope stability assessment was carried out with Finite Element Method (FEM), the rock mass properties were performed following Generalized Hoek-Brown failure criteria and safety of factor was determined based on Shear Strength Reduction technique (SSR) in geotechnique software Phase2 V8.0. The study was applied to a dimension stone quarry Nui Ngang, Binh Dinh Province, contributing to realizing the role of discontinuities in rock mass to slope stability so that miners could design proper pit slope in fracture- existed dimension stone quarries.

How to Cite
Pham, V.Van, Nguyen, T.Anh, Pham, H.Van, Tran, B.Dinh, Le, H.Thu Thi, Le, T.Qui, Tran, T.Huu, Nguyen, P.Tan and Phan, V.Hong 2022. Pit slope stability analysis for Granite quarries on the basic of considering the degree of rock fracture (in Vietnamese). Mining Industry Journal. XXXI, 6 (Dec, 2022), 16-23. .
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