Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer
As the rockfill dam with an asphalt concrete core is built over the thick overburden layer,the overburden layer affects the dynamic response of the dam and aggravates the whiplash effect.Cutoff structures are also affected,especially the cutoff wall of the dam base and the asphalt concrete core of t...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2023-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.01.007 |
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| _version_ | 1841536053648818176 |
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| author | FENG Rui LI Yuqi SHI Wenjie |
| author_facet | FENG Rui LI Yuqi SHI Wenjie |
| author_sort | FENG Rui |
| collection | DOAJ |
| description | As the rockfill dam with an asphalt concrete core is built over the thick overburden layer,the overburden layer affects the dynamic response of the dam and aggravates the whiplash effect.Cutoff structures are also affected,especially the cutoff wall of the dam base and the asphalt concrete core of the dam,which are thin and prone to crack during an earthquake,and hence,they are the weak links of engineering.In the case of a rockfill dam with an asphalt concrete core,its height is 85.5 m,and the cutoff wall of the dam base has a depth of 110 m.To explore the seismic safety of the dam and its cutoff system,this study employs the sub-modeling technique to analyze the seismic time history of the cutoff wall and the core on the basis of static analysis.The results indicate that the seismic effect greatly influences the top and bank slope of the core and both sides of the cutoff wall,and the range and value of tensile stress increase to a great extent.It is suggested that corresponding measures should be taken to reinforce local regions. |
| format | Article |
| id | doaj-art-d12b73e787ec41f6b69be2bc736aecc0 |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-d12b73e787ec41f6b69be2bc736aecc02025-01-15T02:22:54ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352023-01-014447640474Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden LayerFENG RuiLI YuqiSHI WenjieAs the rockfill dam with an asphalt concrete core is built over the thick overburden layer,the overburden layer affects the dynamic response of the dam and aggravates the whiplash effect.Cutoff structures are also affected,especially the cutoff wall of the dam base and the asphalt concrete core of the dam,which are thin and prone to crack during an earthquake,and hence,they are the weak links of engineering.In the case of a rockfill dam with an asphalt concrete core,its height is 85.5 m,and the cutoff wall of the dam base has a depth of 110 m.To explore the seismic safety of the dam and its cutoff system,this study employs the sub-modeling technique to analyze the seismic time history of the cutoff wall and the core on the basis of static analysis.The results indicate that the seismic effect greatly influences the top and bank slope of the core and both sides of the cutoff wall,and the range and value of tensile stress increase to a great extent.It is suggested that corresponding measures should be taken to reinforce local regions.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.01.007cutoff wallrockfill damthick overburden layerasphalt concrete coredynamic analysis |
| spellingShingle | FENG Rui LI Yuqi SHI Wenjie Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer Renmin Zhujiang cutoff wall rockfill dam thick overburden layer asphalt concrete core dynamic analysis |
| title | Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer |
| title_full | Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer |
| title_fullStr | Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer |
| title_full_unstemmed | Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer |
| title_short | Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer |
| title_sort | seismic safety of rockfill dam with asphalt concrete core on overburden layer |
| topic | cutoff wall rockfill dam thick overburden layer asphalt concrete core dynamic analysis |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.01.007 |
| work_keys_str_mv | AT fengrui seismicsafetyofrockfilldamwithasphaltconcretecoreonoverburdenlayer AT liyuqi seismicsafetyofrockfilldamwithasphaltconcretecoreonoverburdenlayer AT shiwenjie seismicsafetyofrockfilldamwithasphaltconcretecoreonoverburdenlayer |