Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study
Geotechnical issues due to inappropriate support designs of underground drift will affect mining developments and production. The aim of this study was to provide a systematic support design method for deep hard-rock drifts in China. Field investigations and laboratory studies were carried out on th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/20/10224 |
| _version_ | 1797475712252248064 |
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| author | Xingdong Zhao Nan Zeng Lei Deng Qiankun Zhu Yifan Zhao Shanghuan Yang |
| author_facet | Xingdong Zhao Nan Zeng Lei Deng Qiankun Zhu Yifan Zhao Shanghuan Yang |
| author_sort | Xingdong Zhao |
| collection | DOAJ |
| description | Geotechnical issues due to inappropriate support designs of underground drift will affect mining developments and production. The aim of this study was to provide a systematic support design method for deep hard-rock drifts in China. Field investigations and laboratory studies were carried out on the engineering geological properties of the rock masses along drifts in the Sanshandao Gold Mine. Potential wedge analysis and safety factors were determined using Unwedge software. The rock mass properties and support requirements were analyzed accordingly using different rock mass classification systems; then, an updated combined support system including rock bolts, wire mesh, and shotcrete was proposed. Numerical methods were used to quantify the plastic zone and principal stress of the drift, the plastic zone was reduced, and the rock stress state was improved after installing the support systems. Field monitoring data also confirmed that the updated support system prevented excessive rock mass deformation in drift. This study provides a reliable method for deep hard-rock drift support at Sanshandao Gold Mine and will also be helpful for the optimization of subsequent support. |
| first_indexed | 2024-03-09T20:47:55Z |
| format | Article |
| id | doaj.art-b042c8d5e18a408fa00b7948d8a73ef2 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T20:47:55Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b042c8d5e18a408fa00b7948d8a73ef22023-11-23T22:41:04ZengMDPI AGApplied Sciences2076-34172022-10-0112201022410.3390/app122010224Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case StudyXingdong Zhao0Nan Zeng1Lei Deng2Qiankun Zhu3Yifan Zhao4Shanghuan Yang5Laboratory for Safe Mining in Deep Metal Mine, Northeastern University, Shenyang 110819, ChinaLaboratory for Safe Mining in Deep Metal Mine, Northeastern University, Shenyang 110819, ChinaLaboratory for Safe Mining in Deep Metal Mine, Northeastern University, Shenyang 110819, ChinaLaboratory for Safe Mining in Deep Metal Mine, Northeastern University, Shenyang 110819, ChinaLaboratory for Safe Mining in Deep Metal Mine, Northeastern University, Shenyang 110819, ChinaShandong Gold Mining (Laizhou) Co., Ltd., Laizhou 261400, ChinaGeotechnical issues due to inappropriate support designs of underground drift will affect mining developments and production. The aim of this study was to provide a systematic support design method for deep hard-rock drifts in China. Field investigations and laboratory studies were carried out on the engineering geological properties of the rock masses along drifts in the Sanshandao Gold Mine. Potential wedge analysis and safety factors were determined using Unwedge software. The rock mass properties and support requirements were analyzed accordingly using different rock mass classification systems; then, an updated combined support system including rock bolts, wire mesh, and shotcrete was proposed. Numerical methods were used to quantify the plastic zone and principal stress of the drift, the plastic zone was reduced, and the rock stress state was improved after installing the support systems. Field monitoring data also confirmed that the updated support system prevented excessive rock mass deformation in drift. This study provides a reliable method for deep hard-rock drift support at Sanshandao Gold Mine and will also be helpful for the optimization of subsequent support.https://www.mdpi.com/2076-3417/12/20/10224deep miningengineering geologyrock mass characterizationwedge analysisnumerical simulation |
| spellingShingle | Xingdong Zhao Nan Zeng Lei Deng Qiankun Zhu Yifan Zhao Shanghuan Yang Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study Applied Sciences deep mining engineering geology rock mass characterization wedge analysis numerical simulation |
| title | Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study |
| title_full | Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study |
| title_fullStr | Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study |
| title_full_unstemmed | Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study |
| title_short | Optimization Drift Support Design Based on Engineering Geological and Geotechnical Analysis in Deep Hard-Rock Mine: A Case Study |
| title_sort | optimization drift support design based on engineering geological and geotechnical analysis in deep hard rock mine a case study |
| topic | deep mining engineering geology rock mass characterization wedge analysis numerical simulation |
| url | https://www.mdpi.com/2076-3417/12/20/10224 |
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