The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks
The surrounding rocks in deep roadways frequently undergo dynamic disturbances caused by adjacent blasting or mining activities. These dynamic disturbances lead to the propagation and coalescence of cracks in the surrounding rock, inducing dynamic disasters in the roadways. However, the mechanisms o...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2025-02-01
|
| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2025.1550247/full |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823859177313796096 |
|---|---|
| author | Tao Zhang Yunyun Xu Chao Wei Haijian Su Yujie Feng Liyuan Yu |
| author_facet | Tao Zhang Yunyun Xu Chao Wei Haijian Su Yujie Feng Liyuan Yu |
| author_sort | Tao Zhang |
| collection | DOAJ |
| description | The surrounding rocks in deep roadways frequently undergo dynamic disturbances caused by adjacent blasting or mining activities. These dynamic disturbances lead to the propagation and coalescence of cracks in the surrounding rock, inducing dynamic disasters in the roadways. However, the mechanisms of rock crack propagation and the roadway failures, induced by dynamic disturbances under different blasting positions and strengths, remain unclear. To investigate the dynamic disturbance of deep roadway surrounding rocks, large-scale physical model tests are carried out on the dynamic instability of surrounding rock under high in situ stress and dynamic disturbance. The dynamic instability failure modes under different disturbance loads and positions are analyzed. The results suggest that under conditions of high ground stress, cracks initiate in stress concentration zones in deep roadways. As disturbance intensities increase, these cracks can further extend, leading to the rapid failure of the surrounding rock. The location of dynamic disturbances influences the failure process of the surrounding rock in deep roadways. Under such stress conditions, stress concentration often occurs at the arch shoulder and arch bottom of the roadway. When the source of dynamic disturbance changes from the side wall to the arch, it is more likely to cause damage within the stress concentration zones in the arch shoulder and arch bottom, which can result in instability and failure of the roadways. |
| format | Article |
| id | doaj-art-66386c1510eb472b8f662082e523af1d |
| institution | Kabale University |
| issn | 2296-8016 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj-art-66386c1510eb472b8f662082e523af1d2025-02-11T06:59:25ZengFrontiers Media S.A.Frontiers in Materials2296-80162025-02-011210.3389/fmats.2025.15502471550247The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocksTao Zhang0Yunyun Xu1Chao Wei2Haijian Su3Yujie Feng4Liyuan Yu5Department of Airfield Logistics Support, Air Force Logistics College, Xuzhou, ChinaDepartment of Airfield Logistics Support, Air Force Logistics College, Xuzhou, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, ChinaThe surrounding rocks in deep roadways frequently undergo dynamic disturbances caused by adjacent blasting or mining activities. These dynamic disturbances lead to the propagation and coalescence of cracks in the surrounding rock, inducing dynamic disasters in the roadways. However, the mechanisms of rock crack propagation and the roadway failures, induced by dynamic disturbances under different blasting positions and strengths, remain unclear. To investigate the dynamic disturbance of deep roadway surrounding rocks, large-scale physical model tests are carried out on the dynamic instability of surrounding rock under high in situ stress and dynamic disturbance. The dynamic instability failure modes under different disturbance loads and positions are analyzed. The results suggest that under conditions of high ground stress, cracks initiate in stress concentration zones in deep roadways. As disturbance intensities increase, these cracks can further extend, leading to the rapid failure of the surrounding rock. The location of dynamic disturbances influences the failure process of the surrounding rock in deep roadways. Under such stress conditions, stress concentration often occurs at the arch shoulder and arch bottom of the roadway. When the source of dynamic disturbance changes from the side wall to the arch, it is more likely to cause damage within the stress concentration zones in the arch shoulder and arch bottom, which can result in instability and failure of the roadways.https://www.frontiersin.org/articles/10.3389/fmats.2025.1550247/fulldeep high-stress roadwaydynamic-static coupling loadingrock-like materialsDIC analysisinstability mechanism |
| spellingShingle | Tao Zhang Yunyun Xu Chao Wei Haijian Su Yujie Feng Liyuan Yu The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks Frontiers in Materials deep high-stress roadway dynamic-static coupling loading rock-like materials DIC analysis instability mechanism |
| title | The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks |
| title_full | The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks |
| title_fullStr | The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks |
| title_full_unstemmed | The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks |
| title_short | The influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks |
| title_sort | influence of disturbance location and intensity on the deformation and failure of deep roadway surrounding rocks |
| topic | deep high-stress roadway dynamic-static coupling loading rock-like materials DIC analysis instability mechanism |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2025.1550247/full |
| work_keys_str_mv | AT taozhang theinfluenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT yunyunxu theinfluenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT chaowei theinfluenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT haijiansu theinfluenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT yujiefeng theinfluenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT liyuanyu theinfluenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT taozhang influenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT yunyunxu influenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT chaowei influenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT haijiansu influenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT yujiefeng influenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks AT liyuanyu influenceofdisturbancelocationandintensityonthedeformationandfailureofdeeproadwaysurroundingrocks |