Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel
ABSTRACT During the excavation of a deep‐buried tunnel by the drilling and blasting method, the dynamic stress of blasting may cause the disorderly release of high energy in the rock mass during the blasting process of deep high‐energy rock. Blasting vibration is one of the main factors inducing dyn...
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| Format: | Article |
| Language: | English |
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Wiley
2025-08-01
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| Series: | Energy Science & Engineering |
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| Online Access: | https://doi.org/10.1002/ese3.70160 |
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| author | Chao Ren Xiaoming Sun Manchao He DongQiao liu JinKun Yang Kunbo Zhang |
| author_facet | Chao Ren Xiaoming Sun Manchao He DongQiao liu JinKun Yang Kunbo Zhang |
| author_sort | Chao Ren |
| collection | DOAJ |
| description | ABSTRACT During the excavation of a deep‐buried tunnel by the drilling and blasting method, the dynamic stress of blasting may cause the disorderly release of high energy in the rock mass during the blasting process of deep high‐energy rock. Blasting vibration is one of the main factors inducing dynamic disasters (such as rockbursts) in the surrounding rock. An impact‐induced rockburst occurred in the Gaoloushan deep‐buried tunnel. In this paper, the simulation experiment of this type of rockburst was carried out by using the impact rockburst experimental system. The two rockbursts that occurred during the experiment formed “V” type pits, which were consistent with the on‐site rockburst situation; therefore, it proved the rationality of this experiment. The results showed that the total displacement characteristics of impact‐induced rockbursts had obvious suddenness, and the intensity of impact‐induced rockbursts showed characteristics from weak to strong. In addition, it was also found that the rupture parameters of the rock mass in rockbursts showed a compound exponential growth relationship with time. As a typical mode of instantaneous rockburst failure, the mechanism of impact‐induced rockburst could be regarded as the result of the combined action of shear crack and tension‐shear crack, which played a dominant role, reflecting the characteristics of sudden fracture development. The generation of impact‐induced rockbursts occurred when the peak value of static load and disturbance stress wave reached a certain value. On this basis, the rockburst criterion was proposed. |
| format | Article |
| id | doaj-art-2da1d741858d41e9b0e91d75d0d22695 |
| institution | Kabale University |
| issn | 2050-0505 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Energy Science & Engineering |
| spelling | doaj-art-2da1d741858d41e9b0e91d75d0d226952025-08-20T03:41:19ZengWileyEnergy Science & Engineering2050-05052025-08-011384252426610.1002/ese3.70160Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep TunnelChao Ren0Xiaoming Sun1Manchao He2DongQiao liu3JinKun Yang4Kunbo Zhang5Road Engineering Research Center Research Institute of Highway Ministry of Transport Beijing ChinaState Key Laboratory for Geomechanics & Deep Underground Engineering China University of Mining & Technology (Beijing) Beijing ChinaState Key Laboratory for Geomechanics & Deep Underground Engineering China University of Mining & Technology (Beijing) Beijing ChinaState Key Laboratory for Geomechanics & Deep Underground Engineering China University of Mining & Technology (Beijing) Beijing ChinaShanxi Transportation Research Institute Group Co. Ltd. Taiyuan ChinaSchool of Mechanics and Civil Engineering China University of Mining and Technology Xuzhou ChinaABSTRACT During the excavation of a deep‐buried tunnel by the drilling and blasting method, the dynamic stress of blasting may cause the disorderly release of high energy in the rock mass during the blasting process of deep high‐energy rock. Blasting vibration is one of the main factors inducing dynamic disasters (such as rockbursts) in the surrounding rock. An impact‐induced rockburst occurred in the Gaoloushan deep‐buried tunnel. In this paper, the simulation experiment of this type of rockburst was carried out by using the impact rockburst experimental system. The two rockbursts that occurred during the experiment formed “V” type pits, which were consistent with the on‐site rockburst situation; therefore, it proved the rationality of this experiment. The results showed that the total displacement characteristics of impact‐induced rockbursts had obvious suddenness, and the intensity of impact‐induced rockbursts showed characteristics from weak to strong. In addition, it was also found that the rupture parameters of the rock mass in rockbursts showed a compound exponential growth relationship with time. As a typical mode of instantaneous rockburst failure, the mechanism of impact‐induced rockburst could be regarded as the result of the combined action of shear crack and tension‐shear crack, which played a dominant role, reflecting the characteristics of sudden fracture development. The generation of impact‐induced rockbursts occurred when the peak value of static load and disturbance stress wave reached a certain value. On this basis, the rockburst criterion was proposed.https://doi.org/10.1002/ese3.70160impact‐induced rockburstrockburst criterionrockburst mechanismtension‐shear crack |
| spellingShingle | Chao Ren Xiaoming Sun Manchao He DongQiao liu JinKun Yang Kunbo Zhang Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel Energy Science & Engineering impact‐induced rockburst rockburst criterion rockburst mechanism tension‐shear crack |
| title | Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel |
| title_full | Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel |
| title_fullStr | Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel |
| title_full_unstemmed | Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel |
| title_short | Experimental Simulation Investigation on Mechanism and Criterion of Impact‐Induced Rockburst in Gaoloushan Deep Tunnel |
| title_sort | experimental simulation investigation on mechanism and criterion of impact induced rockburst in gaoloushan deep tunnel |
| topic | impact‐induced rockburst rockburst criterion rockburst mechanism tension‐shear crack |
| url | https://doi.org/10.1002/ese3.70160 |
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