The Stability and Failure of Deep Underground Structures at Potash Mining Deposits
The article describes the peculiarities of strength and stability evaluation for deep geotechnical structures located in salt rock masses at great depths. A number of numerical studies are presented for the deep mining excavations of various cross-sections. The numerical simulations are conducted us...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/14/20/9434 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850205514343907328 |
|---|---|
| author | Yiqiang Zhang Siarhei Lapatsin Michael Zhuravkov Guangbin Yu Ivan Karpovich |
| author_facet | Yiqiang Zhang Siarhei Lapatsin Michael Zhuravkov Guangbin Yu Ivan Karpovich |
| author_sort | Yiqiang Zhang |
| collection | DOAJ |
| description | The article describes the peculiarities of strength and stability evaluation for deep geotechnical structures located in salt rock masses at great depths. A number of numerical studies are presented for the deep mining excavations of various cross-sections. The numerical simulations are conducted using a specific coupled algorithm of the finite element method (FEM) and distinct element method (DEM), which allows not only the prediction of dangerous zones in the undermined rock mass but also to simulation of the block fracture of the rock mass directly. Potential critical zones in the rock mass are established using an original complex limit state criterion for rock masses and FEM simulation results. Mentioned original criterion is a specific multicriterial method, which considers potential tensile, compressive and shear failure as well as crack propagation. To define the block-structure formulation in the rock mass it is proposed to use the Lade criterion in the complex limit state zones. Furthermore, block-structured rock mass behavior is simulated using DEM to predict its block-like fracture. The results of numerical studies clearly show that the mechanical behavior of potash salt rock masses significantly differ at moderate and great mining depths. Namely, the volume of the limit state zones nonlinearly increases with the increase in the mining depths up to double the size of the excavation cross-section. However, the exact amount of potentially failed rock mass has to be established using the direct DEM simulation in the limit state zones. |
| format | Article |
| id | doaj-art-f3c2d906a8a642cc9dc7b0c3ccc08d90 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-f3c2d906a8a642cc9dc7b0c3ccc08d902025-08-20T02:11:04ZengMDPI AGApplied Sciences2076-34172024-10-011420943410.3390/app14209434The Stability and Failure of Deep Underground Structures at Potash Mining DepositsYiqiang Zhang0Siarhei Lapatsin1Michael Zhuravkov2Guangbin Yu3Ivan Karpovich4School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaTheoretical and Applied Mechanics Department, Belarusian State University, 220030 Minsk, BelarusSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaTheoretical and Applied Mechanics Department, Belarusian State University, 220030 Minsk, BelarusThe article describes the peculiarities of strength and stability evaluation for deep geotechnical structures located in salt rock masses at great depths. A number of numerical studies are presented for the deep mining excavations of various cross-sections. The numerical simulations are conducted using a specific coupled algorithm of the finite element method (FEM) and distinct element method (DEM), which allows not only the prediction of dangerous zones in the undermined rock mass but also to simulation of the block fracture of the rock mass directly. Potential critical zones in the rock mass are established using an original complex limit state criterion for rock masses and FEM simulation results. Mentioned original criterion is a specific multicriterial method, which considers potential tensile, compressive and shear failure as well as crack propagation. To define the block-structure formulation in the rock mass it is proposed to use the Lade criterion in the complex limit state zones. Furthermore, block-structured rock mass behavior is simulated using DEM to predict its block-like fracture. The results of numerical studies clearly show that the mechanical behavior of potash salt rock masses significantly differ at moderate and great mining depths. Namely, the volume of the limit state zones nonlinearly increases with the increase in the mining depths up to double the size of the excavation cross-section. However, the exact amount of potentially failed rock mass has to be established using the direct DEM simulation in the limit state zones.https://www.mdpi.com/2076-3417/14/20/9434great mining depthsfinite element methoddistinct element methodcoupled numerical methodslimit state of the rock mass |
| spellingShingle | Yiqiang Zhang Siarhei Lapatsin Michael Zhuravkov Guangbin Yu Ivan Karpovich The Stability and Failure of Deep Underground Structures at Potash Mining Deposits Applied Sciences great mining depths finite element method distinct element method coupled numerical methods limit state of the rock mass |
| title | The Stability and Failure of Deep Underground Structures at Potash Mining Deposits |
| title_full | The Stability and Failure of Deep Underground Structures at Potash Mining Deposits |
| title_fullStr | The Stability and Failure of Deep Underground Structures at Potash Mining Deposits |
| title_full_unstemmed | The Stability and Failure of Deep Underground Structures at Potash Mining Deposits |
| title_short | The Stability and Failure of Deep Underground Structures at Potash Mining Deposits |
| title_sort | stability and failure of deep underground structures at potash mining deposits |
| topic | great mining depths finite element method distinct element method coupled numerical methods limit state of the rock mass |
| url | https://www.mdpi.com/2076-3417/14/20/9434 |
| work_keys_str_mv | AT yiqiangzhang thestabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT siarheilapatsin thestabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT michaelzhuravkov thestabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT guangbinyu thestabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT ivankarpovich thestabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT yiqiangzhang stabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT siarheilapatsin stabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT michaelzhuravkov stabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT guangbinyu stabilityandfailureofdeepundergroundstructuresatpotashminingdeposits AT ivankarpovich stabilityandfailureofdeepundergroundstructuresatpotashminingdeposits |