Field Investigation and FEM Analysis of Ground Subsidence in a Chinese Underground Gold Mine

Meifeng Cai; Lan Qiao; Bo Yu; Changhong Li

Volume 7 Issue 1

Mar. 2000

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Abstract

International Journal of Minerals, Metallurgy and Materials > 2000 > 7(1): 1-4.

Meifeng Cai, Lan Qiao, Bo Yu, and Changhong Li, Field Investigation and FEM Analysis of Ground Subsidence in a Chinese Underground Gold Mine, J. Univ. Sci. Technol. Beijing , 7(2000), No. 1, pp.1-4.

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Mineral

Field Investigation and FEM Analysis of Ground Subsidence in a Chinese Underground Gold Mine

Author Affilications

Resources Engineering School, University of Science and Technology Beijing, Beijing 100083

Received: 29 August 1999; Available Online: 17 June 2021

Graphical Abstract

Abstract

Abstract

Ground subsidence in a Chinese underground gold mine is remarkable. To find out reasons and regularities of the subsidence, following research work was carried out: (1) systemetical investigations of engineering geological conditions, including in situ stress state, location and size of old river beds, ponds and unfilled mined-out areas, (2) in situ monitoring of strata movement by multi-point extensometers in 3 vertical boreholes; (3) FEM (Finite Element Method) analysis to study the relationship between the ground subsidence and mining excavation, especially to inspect the influence of unfilled mined-out areas at shallow depth on the subsidence. Based on the research results, measures to control the ground subsidence and to prevent buildings from damage are provided.
- ground subsidence,
- mining excavation,
- regularities,
- influencing factors,
- control measures

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