Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters
Rock burst is a common tunnel and mine dynamic disaster, especially for deep buried tunnels, which often leads to tunnel construction delay and even induces tunnel collapse and subsidence of strata. Rock drilling is one of the effective pressure relief methods to prevent these disasters. In order to...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/3565344 |
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| _version_ | 1832560698588135424 |
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| author | Shiwei Liang Long Zhang Di Ge Qiong Wang |
| author_facet | Shiwei Liang Long Zhang Di Ge Qiong Wang |
| author_sort | Shiwei Liang |
| collection | DOAJ |
| description | Rock burst is a common tunnel and mine dynamic disaster, especially for deep buried tunnels, which often leads to tunnel construction delay and even induces tunnel collapse and subsidence of strata. Rock drilling is one of the effective pressure relief methods to prevent these disasters. In order to study the influence of borehole diameter on rock mass pressure relief effect, indoor acoustic emission characteristics and numerical simulation of rock samples with different borehole diameter were studied. The research result shows that with the increase in borehole diameter, the effect of borehole pressure relief is better. Different borehole diameters do not change the overall trend of acoustic emission evolution, but it will lead to different acoustic emission count characteristics of rock damage and failure, especially the maximum acoustic emission count characteristics and corresponding strain values. The existence of drilling will lead to the failure stress of rock in advance. Moreover, the existence of drilling causes a great change in the failure mode of the specimen. |
| format | Article |
| id | doaj-art-d50f465f537f450caa3ed63f8bf67e0c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d50f465f537f450caa3ed63f8bf67e0c2025-02-03T01:27:01ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/35653443565344Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole DiametersShiwei Liang0Long Zhang1Di Ge2Qiong Wang3School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaGansu Chemical Industry Research Institute Co., Ltd., Lanzhou 730000, ChinaXi’an Kedagaoxin University, Xi’an 710109, ChinaDepartment of Emergency Technology and Management, North China Institute of Science & Technology, Beijing 101601, ChinaRock burst is a common tunnel and mine dynamic disaster, especially for deep buried tunnels, which often leads to tunnel construction delay and even induces tunnel collapse and subsidence of strata. Rock drilling is one of the effective pressure relief methods to prevent these disasters. In order to study the influence of borehole diameter on rock mass pressure relief effect, indoor acoustic emission characteristics and numerical simulation of rock samples with different borehole diameter were studied. The research result shows that with the increase in borehole diameter, the effect of borehole pressure relief is better. Different borehole diameters do not change the overall trend of acoustic emission evolution, but it will lead to different acoustic emission count characteristics of rock damage and failure, especially the maximum acoustic emission count characteristics and corresponding strain values. The existence of drilling will lead to the failure stress of rock in advance. Moreover, the existence of drilling causes a great change in the failure mode of the specimen.http://dx.doi.org/10.1155/2021/3565344 |
| spellingShingle | Shiwei Liang Long Zhang Di Ge Qiong Wang Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters Shock and Vibration |
| title | Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters |
| title_full | Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters |
| title_fullStr | Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters |
| title_full_unstemmed | Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters |
| title_short | Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters |
| title_sort | study on pressure relief effect and rock failure characteristics with different borehole diameters |
| url | http://dx.doi.org/10.1155/2021/3565344 |
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