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| Study on Deformation and Dailure Law of Roadway with Different Section Dimensions under Complex Stress Conditions |
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Received:November 29, 2023
Revised:November 29, 2023
Accepted:November 30, 2023
Published Online:March 24, 2025
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| DOI： |
| KeyWord:Deep; Roadway; Numerical simulation; Stress; Deformation |
| Author | Institution |
| Yang Shanghuan |
Sanshandao Gold Mine,Shandong Gold Mining Industry Laizhou Co,Ltd |
| Liang Shenlin |
School of Civil and Resource Engineering,University of Science and Technology Beijing |
| Wu Zhenyu |
Sanshandao Gold Mine,Shandong Gold Mining Industry Laizhou Co,Ltd |
| Guo Qifeng |
School of Civil and Resource Engineering,University of Science and Technology Beijing |
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| Abstract: |
| Taking Sanshandao Gold Mine as a worked example, FLAC3D numerical analysis software was used to simulate deep roadway with different section sizes, aiming to study the stress and deformation characteristics of surrounding rock of different section sizes under complex stress conditions. The results show that with the increase of the cross-section size of the roadway, the stress continues to concentrate in the deep surrounding rock. The maximum and minimum principal stresses around the roadway generally increase with the roadway section increasing. The change trend of the maximum principal stress is greater than that of the minimum principal stress. In different section sizes, the vertical principal stress distribution is concentrated in the two sides of the roadway, while the horizontal principal stress distribution is concentrated in the roof of the roadway. In addition, the size of the roadway has a significant influence on the deformation of the surrounding rock of the deep roadway. With the increase of the cross-section size of the roadway, the deformation around the roadway increases. |
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