A numerical design framework for unloading excavations in deep potash mining
Yiqiang Zhang, Siarhei Lapatsin, Michael Zhuravkov, Guangbin Yu, Yiqian He, Pavel Piaredryi · 2025
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Description
Yiqiang Zhang and colleagues design relief tunnels that take pressure off deep potash mine workings before the rock takes it out on the miners, in this study from twenty twenty-five. Potash salt rock squeezes and creeps at depth, and conventional support often loses. An unloading excavation is a sacrificial neighbor tunnel that absorbs the stress.
A finite element framework, checked against a year of real deformation readings at Belarus's Starobin deposit, tested depths from three hundred to twelve hundred meters. Placed well, the relief tunnel shrank the computed failure zones by anywhere from seven percent to over ninety. For Starobin conditions, a three-meter tunnel five to six meters away worked best. The authors present the numbers as first design guidance, and the method as transferable to other deep geotechnical works in squeezing ground.
Catalog record
| CREATOR | Yiqiang Zhang, Siarhei Lapatsin, Michael Zhuravkov, Guangbin Yu, Yiqian He, Pavel Piaredryi |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 75 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |