Stability analysis of open-pit bench slope under repeated heavy vehicle loading based on stress-corrosion model

• Autorzy: Zhao, Lichun , Li, Zhiguo , Liu, Yongjie , Xu, Yongchao , Wasantha, P. L. P. , Zheng, Xiaobin , Xu, Tao
• Języki publikacji: EN

Abstrakty

EN

In the present study, we address an important and increasingly relevant topic in mining safety and efficiency, namely the stability of open-pit bench slopes subjected to daily heavy truck cyclic loading. Specifically, we focus on the stability of Zhahanur open-pit slope (Inner Mongolia region, China) and investigate the potential role of daily heavy truck cyclic loading in bench slope instability. To this end, we incorporate a stress corrosion model into the particle flow code to develop a time-dependent deformation model of the rock. With the established model, we quantitatively analyse the effect of heavy truck cyclic loading on the bench slope stability. Our results support the hypothesis that daily heavy truck loading can cause gradual downward deformation of a rock mass, leading to slope instability. To validate our numerical modelling results, we compare and analyse them with in situ monitoring data. Our study demonstrates the significant impact of daily heavy vehicles on bench slope stability in open-pit mines and provides a practical tool for assessing the long-term stability of open-pit bench slopes and optimising mining operations.

Słowa kluczowe

PL

szyb wiertniczy; obciążenie cykliczne; korozja

EN

open-pit slope; stress-corrosion model; cyclic loading; particle flow code; bench slope stability

• Czasopismo: Archives of Mining Sciences
• Rocznik: 2024
• Tom: Vol. 69, no. 2
• Strony: 211--230
• Opis fizyczny: Bibliogr. 40 poz., rys., tab., wykr.

Twórcy

autor

Zhao, Lichun

• Faculty of Engineering, China University of Geosciences, Wuhan, Hubei 430074, China & Jarud Banner Zhahanur Coal Industry Co. Ltd, Jarud Banner 029100, China

autor

Li, Zhiguo

• School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China

autor

Liu, Yongjie

• Coal Mine Center, SPIC Inner Mongolia Energy Co. Ltd., Inner Mongolia, China

autor

Xu, Yongchao

• Jarud Banner Zhahanur Coal Industry Co. Ltd, Jarud Banner 029100, China

autor

Wasantha, P. L. P.

• College of Sport, Health and Engineering, Victoria University Melbourne, VIC 3011, Australia

autor

Zheng, Xiaobin

• School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China

autor

Xu, Tao

• School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China,

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Identyfikatory

DOI

10.24425/ams.2024.150342