Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles
Carbonaceous slate is heterogeneous and anisotropic, which has a great influence on the stability of tunnel. In this paper, by means of laboratory test, field measurement, and numerical simulation, the surrounding rock stability and plastic zone distribution characteristics of the carbonaceous slate...
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| Main Authors: | , , , |
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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/10.1155/2021/6345879 |
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| _version_ | 1832564497130192896 |
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| author | Jin Zhang Chuanhao Xi Qian Zhang Mengxue Wang |
| author_facet | Jin Zhang Chuanhao Xi Qian Zhang Mengxue Wang |
| author_sort | Jin Zhang |
| collection | DOAJ |
| description | Carbonaceous slate is heterogeneous and anisotropic, which has a great influence on the stability of tunnel. In this paper, by means of laboratory test, field measurement, and numerical simulation, the surrounding rock stability and plastic zone distribution characteristics of the carbonaceous slate tunnel at different intersection angles are analyzed. First, combined with the Haibaluo tunnel project, Brazilian splitting and uniaxial compression tests of jointed carbonaceous slate are performed. The test results show that the tensile strength of carbonaceous slate is related to joint dip angle. When the joint angle is 0°, the tensile strength is the largest and decreases with the increase of the joint angle. The uniaxial strength of rock decreases first and then increases. Based on the discrete fracture network (DFN) technology, a calculation model is established. The calculation results show that the maximum displacement is 0.45 m, when the dip angle of the surrounding rock joint is 45°. The field measurement also shows that the dip angle of the surrounding rock joint has an important influence on the distribution of the plastic zone. When the joint dip angle is 45°, the plastic zone develops most strongly. |
| format | Article |
| id | doaj-art-b0b9eefe2b004d94bad2fd0320e87a0c |
| 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-b0b9eefe2b004d94bad2fd0320e87a0c2025-02-03T01:10:54ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/63458796345879Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip AnglesJin Zhang0Chuanhao Xi1Qian Zhang2Mengxue Wang3College of Civil Engineering, Qingdao University of Technology, Qingdao 26033, ChinaCollege of Civil Engineering, Qingdao University of Technology, Qingdao 26033, ChinaBeijing Key Laboratory for Precise Mining of Intergrown Energy and Resources, China University of Mining and Technology, Beijing 100083, ChinaCollege of Civil Engineering, Qingdao University of Technology, Qingdao 26033, ChinaCarbonaceous slate is heterogeneous and anisotropic, which has a great influence on the stability of tunnel. In this paper, by means of laboratory test, field measurement, and numerical simulation, the surrounding rock stability and plastic zone distribution characteristics of the carbonaceous slate tunnel at different intersection angles are analyzed. First, combined with the Haibaluo tunnel project, Brazilian splitting and uniaxial compression tests of jointed carbonaceous slate are performed. The test results show that the tensile strength of carbonaceous slate is related to joint dip angle. When the joint angle is 0°, the tensile strength is the largest and decreases with the increase of the joint angle. The uniaxial strength of rock decreases first and then increases. Based on the discrete fracture network (DFN) technology, a calculation model is established. The calculation results show that the maximum displacement is 0.45 m, when the dip angle of the surrounding rock joint is 45°. The field measurement also shows that the dip angle of the surrounding rock joint has an important influence on the distribution of the plastic zone. When the joint dip angle is 45°, the plastic zone develops most strongly.http://dx.doi.org/10.1155/2021/6345879 |
| spellingShingle | Jin Zhang Chuanhao Xi Qian Zhang Mengxue Wang Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles Shock and Vibration |
| title | Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles |
| title_full | Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles |
| title_fullStr | Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles |
| title_full_unstemmed | Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles |
| title_short | Study on Stability and Plastic Zone Distribution of Tunnel with Thin Carbonaceous Slate at Different Dip Angles |
| title_sort | study on stability and plastic zone distribution of tunnel with thin carbonaceous slate at different dip angles |
| url | http://dx.doi.org/10.1155/2021/6345879 |
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