Research on Numerical Simulation of the Influence of Valley Down-cutting on Unloading of Bank Slope
In order to obtain the influence on unloading of bank slope during the process of valley down-cutting, this paper takes the bank slope at the lower dam site of a hydropower station as the research object, and analyzes the stress field characteristics, displacement field and plastic zone evolution ch...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Pearl River
2020-01-01
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| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.02.016 |
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| Summary: | In order to obtain the influence on unloading of bank slope during the process of valley down-cutting, this paper takes the bank slope at the lower dam site of a hydropower station as the research object, and analyzes the stress field characteristics, displacement field and plastic zone evolution characteristics during the process of valley down-cutting by establishing the corresponding three-dimensional model for numerical simulation. The results show that during the process of valley down-cutting,in the horizontal direction, the stress inside the slope is greater than that of the free face of the slope with the same elevation; the displacement perpendicular to the channel increases gradually; the unloading depth continuously extends to the inside of the slope; and the existence of the ductile shear zone has a greater impact on the unloading of the rock mass. |
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| ISSN: | 1001-9235 |