Beta
115147

PRACTICAL APPLICATION OF STOCHASTIC METHODS IN GEOTECHNICAL ENGINEERING

Article

Last updated: 26 Dec 2024

Subjects

-

Tags

Mining and Metallurgical Engineering.

Abstract

Mine haulage drifts are the only stope access in sub-level stoping mining system. Thus, they must remain stable during their service life. Haulage drift instability could lead to serious consequences such as: production delay, damage to equipment, loss of reserves and high operational cost. The goal of this paper is the performance stability evaluation of mine haulage drifts with respect to mining sequence adopting different stochastic methods of analysis. A two-dimensional, elastoplastic, finite difference code (FLAC 2D) is used for this study. Stochastic analysis; adopting Point-Estimate Methods (PEMs), Monte-Carlo Simulation (MCS) and Random Monte-Carlo Simulation (RMCS) are then employed with the numerical modelling to tackle the inherent uncertainty associated with rockmass properties. Then, the probability of instability at last mining step (e.g., after excavating stope 3) is estimated for haulage drift side walls and roof. The stability indicators are defined in terms of displacement, stress and the extent of yield zones, which are adopted as a basis for assessing the performance stability of haulage drift. The stochastic results are presented and compared in terms of probability of occurrence at last mining stage (e.g., after excavating stope 3) adopting displacement/convergence criterion.

DOI

10.21608/jesaun.2015.115147

Keywords

Probabilistic methods, Failure Evaluation Criteria, Probability of Instability

Authors

First Name

Wael Rashad Elrawy

Last Name

Abdellah

MiddleName

-

Affiliation

Mining & Metallurgical Eng. Dept., Faculty of Engineering- University of Assiut, Assiut, Egypt

Email

waelabdellah@aun.edu.eg

City

-

Orcid

0000-0001-8133-7817

Volume

43

Article Issue

No 1

Related Issue

16629

Issue Date

2015-01-01

Receive Date

2015-01-07

Publish Date

2015-01-01

Page Start

57

Page End

70

Print ISSN

1687-0530

Online ISSN

2356-8550

Link

https://jesaun.journals.ekb.eg/article_115147.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=115147

Order

5

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

PRACTICAL APPLICATION OF STOCHASTIC METHODS IN GEOTECHNICAL ENGINEERING

Details

Type

Article

Created At

23 Jan 2023