Formation Mechanism and Stability Analysis of the Hejia Landslide
The existing research data show that, after reservoir impoundment, due to the repeated rise and fall of water level and water-rock interaction, the mechanical parameters of landslide are reduced, which will have an adverse effect on the stability of landslide. Therefore, sufficient attention must be...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/1372621 |
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| author | Hao Zhang Zaiqiang Hu Xingzhou Chen Hongru Li |
| author_facet | Hao Zhang Zaiqiang Hu Xingzhou Chen Hongru Li |
| author_sort | Hao Zhang |
| collection | DOAJ |
| description | The existing research data show that, after reservoir impoundment, due to the repeated rise and fall of water level and water-rock interaction, the mechanical parameters of landslide are reduced, which will have an adverse effect on the stability of landslide. Therefore, sufficient attention must be paid to the stability of slope after reservoir impoundment. Hejia landslide is the largest landslide near the bank of Miaojiaba hydropower station, and its stability plays an important role in the normal operation of the hydropower station. Through field investigation and analysis of regional geological conditions, it is concluded that Hejia landslide is a large-scale landslide, through long-term sliding-bending deformation; it is generated from the external hard rock with thick layers and sliding zone for layered soft rock; the formation mechanism of landslide is as follows: (1) high-steep and hard-soft layered slope is the slope structure condition that caused the large landslide; (2) the existence of thick soft rock belt provides material conditions for the formation of slip surface; (3) certain air conditions provide displacement space for the separation and disintegration of the sliding body, and the landslide is stable at present. Numerical analysis results show that reservoir impoundment will adversely affect the stability of landslide. In order to ensure the normal operation of power station, certain engineering measures must be taken to treat Hejia landslide. After taking measures, years of monitoring data show that the deformation of Hejia landslide tends to be stable, and the current operation is normal, indicating that the engineering treatment measures are reasonable and feasible. |
| format | Article |
| id | doaj-art-9835b4b0474a4c8fa96f96eb94e484cd |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-9835b4b0474a4c8fa96f96eb94e484cd2025-02-03T01:20:39ZengWileyAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/1372621Formation Mechanism and Stability Analysis of the Hejia LandslideHao Zhang0Zaiqiang Hu1Xingzhou Chen2Hongru Li3School of Civil Engineering and ArchitectureSchool of Civil Engineering and ArchitectureSchool of Architecture and Civil EngineeringSchool of Civil Engineering and ArchitectureThe existing research data show that, after reservoir impoundment, due to the repeated rise and fall of water level and water-rock interaction, the mechanical parameters of landslide are reduced, which will have an adverse effect on the stability of landslide. Therefore, sufficient attention must be paid to the stability of slope after reservoir impoundment. Hejia landslide is the largest landslide near the bank of Miaojiaba hydropower station, and its stability plays an important role in the normal operation of the hydropower station. Through field investigation and analysis of regional geological conditions, it is concluded that Hejia landslide is a large-scale landslide, through long-term sliding-bending deformation; it is generated from the external hard rock with thick layers and sliding zone for layered soft rock; the formation mechanism of landslide is as follows: (1) high-steep and hard-soft layered slope is the slope structure condition that caused the large landslide; (2) the existence of thick soft rock belt provides material conditions for the formation of slip surface; (3) certain air conditions provide displacement space for the separation and disintegration of the sliding body, and the landslide is stable at present. Numerical analysis results show that reservoir impoundment will adversely affect the stability of landslide. In order to ensure the normal operation of power station, certain engineering measures must be taken to treat Hejia landslide. After taking measures, years of monitoring data show that the deformation of Hejia landslide tends to be stable, and the current operation is normal, indicating that the engineering treatment measures are reasonable and feasible.http://dx.doi.org/10.1155/2021/1372621 |
| spellingShingle | Hao Zhang Zaiqiang Hu Xingzhou Chen Hongru Li Formation Mechanism and Stability Analysis of the Hejia Landslide Advances in Materials Science and Engineering |
| title | Formation Mechanism and Stability Analysis of the Hejia Landslide |
| title_full | Formation Mechanism and Stability Analysis of the Hejia Landslide |
| title_fullStr | Formation Mechanism and Stability Analysis of the Hejia Landslide |
| title_full_unstemmed | Formation Mechanism and Stability Analysis of the Hejia Landslide |
| title_short | Formation Mechanism and Stability Analysis of the Hejia Landslide |
| title_sort | formation mechanism and stability analysis of the hejia landslide |
| url | http://dx.doi.org/10.1155/2021/1372621 |
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