Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay
Red clay is a special soil layer with complex engineering properties distributed in tropical and subtropical regions. An anchor cable support is a common form of red clay slope support. The effectiveness of the anchor cable support is mainly determined by the anchoring force provided by the red clay...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/6272576 |
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| _version_ | 1832568165489442816 |
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| author | Lifeng Li Weili Gong Huilin Deng Xiaohu Zhang Gan Li |
| author_facet | Lifeng Li Weili Gong Huilin Deng Xiaohu Zhang Gan Li |
| author_sort | Lifeng Li |
| collection | DOAJ |
| description | Red clay is a special soil layer with complex engineering properties distributed in tropical and subtropical regions. An anchor cable support is a common form of red clay slope support. The effectiveness of the anchor cable support is mainly determined by the anchoring force provided by the red clay stratum. Increase of the water content will lead to the rapid deterioration of the mechanical properties of red clay, which will lead to the reduction of the anchoring force of the slope anchor cable and lead to the failure of the support. Based on the classical Phillips and uniform anchorage shear stress distribution theory, this paper puts forward a uniform-exponential distribution pattern of anchorage shear stress according to the specific characteristics of red clay by using the characteristics of the peak shear strength and residual shear strength of the rock and soil mass. With increasing anchorage force, the dynamic evolution (single exponential distribution ⟶ double single exponential distribution ⟶ uniform index exponential complex distribution ⟶ uniform distribution) of the anchorage shear stress is analysed. Based on the peak and residual test of the cohesive force and internal friction angle, the relationship between the anchoring force and buried depth and water content is established by analysing the factors influencing the anchoring force. It can be found from the field test that, according to the relationship established, the limit anchorage force of the anchor cable in the red clay stratum can be calculated and the water sensitivity of the anchor cable’s limit anchorage force can be quantitatively analysed. |
| format | Article |
| id | doaj-art-b2607fe01b3d461184868443eeabaa32 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b2607fe01b3d461184868443eeabaa322025-02-03T00:59:42ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/62725766272576Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red ClayLifeng Li0Weili Gong1Huilin Deng2Xiaohu Zhang3Gan Li4School of Architecture and Civil Engineering, Guizhou University of Engineering Science, Guizhou, Bijie 551700, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Architecture and Civil Engineering, Guizhou University of Engineering Science, Guizhou, Bijie 551700, ChinaSchool of Architecture and Civil Engineering, Guizhou University of Engineering Science, Guizhou, Bijie 551700, ChinaSchool of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing 100083, ChinaRed clay is a special soil layer with complex engineering properties distributed in tropical and subtropical regions. An anchor cable support is a common form of red clay slope support. The effectiveness of the anchor cable support is mainly determined by the anchoring force provided by the red clay stratum. Increase of the water content will lead to the rapid deterioration of the mechanical properties of red clay, which will lead to the reduction of the anchoring force of the slope anchor cable and lead to the failure of the support. Based on the classical Phillips and uniform anchorage shear stress distribution theory, this paper puts forward a uniform-exponential distribution pattern of anchorage shear stress according to the specific characteristics of red clay by using the characteristics of the peak shear strength and residual shear strength of the rock and soil mass. With increasing anchorage force, the dynamic evolution (single exponential distribution ⟶ double single exponential distribution ⟶ uniform index exponential complex distribution ⟶ uniform distribution) of the anchorage shear stress is analysed. Based on the peak and residual test of the cohesive force and internal friction angle, the relationship between the anchoring force and buried depth and water content is established by analysing the factors influencing the anchoring force. It can be found from the field test that, according to the relationship established, the limit anchorage force of the anchor cable in the red clay stratum can be calculated and the water sensitivity of the anchor cable’s limit anchorage force can be quantitatively analysed.http://dx.doi.org/10.1155/2020/6272576 |
| spellingShingle | Lifeng Li Weili Gong Huilin Deng Xiaohu Zhang Gan Li Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay Shock and Vibration |
| title | Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay |
| title_full | Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay |
| title_fullStr | Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay |
| title_full_unstemmed | Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay |
| title_short | Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay |
| title_sort | distribution pattern of anchorage stress and water sensitivity analysis of red clay |
| url | http://dx.doi.org/10.1155/2020/6272576 |
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