Numerical investigation on the tunneling and mining induced geo-hazards: Case study in Quang Ninh, Vietnam

  • Nguyen Cong Giang Faculty of Civil Engineering, Hanoi University of Architecture, Km 10, Nguyen Trai road, Thanh Xuan district, Hanoi, Vietnam
  • Nguyen Van Manh Faculty of Civil Engineering, Hanoi University of Mining and Geology, No. 18 Vien street, Bac Tu Liem district, Hanoi, Vietnam
  • Nguyen Quang Phich Faculty of Civil Construction, Van Lang University, 401C, Campus 45 Nguyen Khac Nhu street, District 1, Ho Chi Minh city, Vietnam

Abstract

In the field of rock mechanics, underground construction and mining, there have been many proposed methods for studying geo-hazards and also many research results that have been published in the world. In Vietnam, the numerical method is mainly used for analysis and design but not going deeply to predict the possible causes that lead to geo-hazards due to complex geological conditions. On the other hand, underground constructions and exploitation projects are often designed based on standards, regulations and experiences. The physical mechanism as well as the possibility of geo-hazards occurred when constructing underground structures and mining can take on various forms, depending on geological conditions and construction technology. Therefore, using numerical methods to simulate and analyze the possible geo-hazards is essential. This article presents a number of specific analysis cases, taking into account geological conditions and boundary conditions, and from that, raising a number of issues to note when using numerical methods.

Keywords:

underground mining; numerical method; geo-hazards; rock mechanics; FLAC2D.

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Published
23-07-2020
How to Cite
Giang, N. C., Manh, N. V., & Phich, N. Q. (2020). Numerical investigation on the tunneling and mining induced geo-hazards: Case study in Quang Ninh, Vietnam. Journal of Science and Technology in Civil Engineering (STCE) - NUCE, 14(3), 67-74. https://doi.org/10.31814/10.31814/stce.nuce2020-14(3)-06
Section
Research Papers