Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley
At present,in the finite-element stress and strain calculation of rockfill dams,fixed support is mostly adopted to simulate the connection between the rockfill at the bank slope and the slope.As for a concrete-face rockfill dam (CFRD) in the steep slope area of a narrow valley,the rockfill may slip...
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Editorial Office of Pearl River
2022-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.017 |
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| author | HOU Bingling NIE Baisong |
| author_facet | HOU Bingling NIE Baisong |
| author_sort | HOU Bingling |
| collection | DOAJ |
| description | At present,in the finite-element stress and strain calculation of rockfill dams,fixed support is mostly adopted to simulate the connection between the rockfill at the bank slope and the slope.As for a concrete-face rockfill dam (CFRD) in the steep slope area of a narrow valley,the rockfill may slip along the bank slope face,in which case fixed support simulation is inconsistent with the actual situation.To study the influence of the steep slope in a narrow valley on the stress and deformation of a CFRD,we adopt the thickness-free Goodman element to simulate the interface between the steep slope boundary and the rockfill in a narrow valley.The results are compared with those of the conventional method of simulating the rockfill nodes at the bank slope as fixed support.The calculation results show that the deformation and stress distribution of the rockfill body are similar in the two cases,although the deformation is relatively smaller when fixed support treatment is implemented.Moreover,the tensile stress at the bottom of the concrete face in the riverbed section is large in the case of fixed support,which disagrees with the practical situation.After frictional contact is considered,the rockfill can slide along the bank slope,the stress distribution in this area tends to be uniform,and the arch effect is minor.After impoundment,the concrete face at the bank slope is slightly compressed under the action of the hydrostatic pressure,which is in line with the actual situation. |
| format | Article |
| id | doaj-art-8c83518675224f65bf22bc5e2e5858fd |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-8c83518675224f65bf22bc5e2e5858fd2025-01-15T02:27:03ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347644557Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow ValleyHOU BinglingNIE BaisongAt present,in the finite-element stress and strain calculation of rockfill dams,fixed support is mostly adopted to simulate the connection between the rockfill at the bank slope and the slope.As for a concrete-face rockfill dam (CFRD) in the steep slope area of a narrow valley,the rockfill may slip along the bank slope face,in which case fixed support simulation is inconsistent with the actual situation.To study the influence of the steep slope in a narrow valley on the stress and deformation of a CFRD,we adopt the thickness-free Goodman element to simulate the interface between the steep slope boundary and the rockfill in a narrow valley.The results are compared with those of the conventional method of simulating the rockfill nodes at the bank slope as fixed support.The calculation results show that the deformation and stress distribution of the rockfill body are similar in the two cases,although the deformation is relatively smaller when fixed support treatment is implemented.Moreover,the tensile stress at the bottom of the concrete face in the riverbed section is large in the case of fixed support,which disagrees with the practical situation.After frictional contact is considered,the rockfill can slide along the bank slope,the stress distribution in this area tends to be uniform,and the arch effect is minor.After impoundment,the concrete face at the bank slope is slightly compressed under the action of the hydrostatic pressure,which is in line with the actual situation.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.017narrow valleysteep slopeconcrete-face rockfill damslippage |
| spellingShingle | HOU Bingling NIE Baisong Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley Renmin Zhujiang narrow valley steep slope concrete-face rockfill dam slippage |
| title | Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley |
| title_full | Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley |
| title_fullStr | Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley |
| title_full_unstemmed | Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley |
| title_short | Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley |
| title_sort | study of stress and deformation of high concrete face rockfill dam on steep slope in narrow valley |
| topic | narrow valley steep slope concrete-face rockfill dam slippage |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.017 |
| work_keys_str_mv | AT houbingling studyofstressanddeformationofhighconcretefacerockfilldamonsteepslopeinnarrowvalley AT niebaisong studyofstressanddeformationofhighconcretefacerockfilldamonsteepslopeinnarrowvalley |