Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test
In order to study the effects of water on the deformation and strength of the altered rock during unloading, this paper obtains the micro-structure and mineral distribution of the altered rock at the right dam abutment of a hydropower station in southwest China by SEM (scanning electron microscope),...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2020-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.03.015 |
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| author | LI Wancai DENG Hui ZHANG Qiyuan LU Bifeng HAO Hao LI Anrun |
| author_facet | LI Wancai DENG Hui ZHANG Qiyuan LU Bifeng HAO Hao LI Anrun |
| author_sort | LI Wancai |
| collection | DOAJ |
| description | In order to study the effects of water on the deformation and strength of the altered rock during unloading, this paper obtains the micro-structure and mineral distribution of the altered rock at the right dam abutment of a hydropower station in southwest China by SEM (scanning electron microscope), then analyzes and discusses the influences of water in different stress paths on the stress-strain curves, deformation characteristics and strength characteristics of altered rock through triaxial loading and unloading tests of rock samples under natural state and saturated state. The results indicate that: compared with loading test, the cohesive force of rock sample increased and its angle of internal friction decreased under unloading test; based on triaxial loading and unloading tests, the strength of altered rock under saturated state is lower than that under natural state; the strength of altered rock decreases obviously after being exposed to water. |
| format | Article |
| id | doaj-art-4cf3cef0916540c3b51c8f146a7fe3dc |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-4cf3cef0916540c3b51c8f146a7fe3dc2025-01-15T02:32:27ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352020-01-014147653283Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading TestLI WancaiDENG HuiZHANG QiyuanLU BifengHAO HaoLI AnrunIn order to study the effects of water on the deformation and strength of the altered rock during unloading, this paper obtains the micro-structure and mineral distribution of the altered rock at the right dam abutment of a hydropower station in southwest China by SEM (scanning electron microscope), then analyzes and discusses the influences of water in different stress paths on the stress-strain curves, deformation characteristics and strength characteristics of altered rock through triaxial loading and unloading tests of rock samples under natural state and saturated state. The results indicate that: compared with loading test, the cohesive force of rock sample increased and its angle of internal friction decreased under unloading test; based on triaxial loading and unloading tests, the strength of altered rock under saturated state is lower than that under natural state; the strength of altered rock decreases obviously after being exposed to water.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.03.015altered rocktriaxial unloading teststress pathsdeformation characteristicsstrength characteristics |
| spellingShingle | LI Wancai DENG Hui ZHANG Qiyuan LU Bifeng HAO Hao LI Anrun Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test Renmin Zhujiang altered rock triaxial unloading test stress paths deformation characteristics strength characteristics |
| title | Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test |
| title_full | Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test |
| title_fullStr | Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test |
| title_full_unstemmed | Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test |
| title_short | Research on Altered Rock at a Hydropower StationBased on Triaxial Unloading Test |
| title_sort | research on altered rock at a hydropower stationbased on triaxial unloading test |
| topic | altered rock triaxial unloading test stress paths deformation characteristics strength characteristics |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.03.015 |
| work_keys_str_mv | AT liwancai researchonalteredrockatahydropowerstationbasedontriaxialunloadingtest AT denghui researchonalteredrockatahydropowerstationbasedontriaxialunloadingtest AT zhangqiyuan researchonalteredrockatahydropowerstationbasedontriaxialunloadingtest AT lubifeng researchonalteredrockatahydropowerstationbasedontriaxialunloadingtest AT haohao researchonalteredrockatahydropowerstationbasedontriaxialunloadingtest AT lianrun researchonalteredrockatahydropowerstationbasedontriaxialunloadingtest |