Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet
Chalonglongbaqu gully is located on the right bank of Parlung Zangbo. The steeply changing topography has bred a large number of high-level geological disasters, threatening the downstream linear engineering. Therefore, this paper uses multi-source and multi-phase high-resolution remote sensing data...
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| Format: | Article |
| Language: | zho |
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Editorial Office of The Chinese Journal of Geological Hazard and Control
2021-06-01
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| Series: | Zhongguo dizhi zaihai yu fangzhi xuebao |
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| Online Access: | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.03-02 |
| _version_ | 1797862439944978432 |
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| author | Tiantian ZHANG Yueping YIN Bin LI Kai HE Meng WANG Chaoying ZHAO Xiaojie LIU |
| author_facet | Tiantian ZHANG Yueping YIN Bin LI Kai HE Meng WANG Chaoying ZHAO Xiaojie LIU |
| author_sort | Tiantian ZHANG |
| collection | DOAJ |
| description | Chalonglongbaqu gully is located on the right bank of Parlung Zangbo. The steeply changing topography has bred a large number of high-level geological disasters, threatening the downstream linear engineering. Therefore, this paper uses multi-source and multi-phase high-resolution remote sensing data to establish remote sensing interpretation signs of high-level geological disasters, determines the types of high-level geological disasters in the study area, and elaborates their development characteristics. The results show that the main types of geological disasters in the study area include high-level ice avalanches, high-level avalanches, and high-level landslides. Among them, there are 3 high-level ice avalanches, all of which are located on a slope with an altitude of 5000 m above the south slope of the upper reaches of the valley, with an area of more than 15×104 m2. There are 19 high-level avalanches, which are mostly distributed in the middle reaches of the valley and high and steep bank slopes on both sides of the upper main ditch. The northern slope is more than the southern slope. There are two high-level landslides located in the upper reaches of the valley, and the landslide is dominated by moraines. Under the action of strong earthquakes or heavy rainfall, the above-mentioned high-level geological disasters are prone to instability and blockage of ditch. After blocking the ditch, it is easy to induce secondary disaster chains such as floods and mudslides, which will cause the risk of blocking the river downstream of Parlung Zangbo. |
| first_indexed | 2024-04-09T22:19:20Z |
| format | Article |
| id | doaj.art-5481a2d6a58f4de993c3f33e9f859bff |
| institution | Directory Open Access Journal |
| issn | 1003-8035 |
| language | zho |
| last_indexed | 2024-04-09T22:19:20Z |
| publishDate | 2021-06-01 |
| publisher | Editorial Office of The Chinese Journal of Geological Hazard and Control |
| record_format | Article |
| series | Zhongguo dizhi zaihai yu fangzhi xuebao |
| spelling | doaj.art-5481a2d6a58f4de993c3f33e9f859bff2023-03-22T16:10:26ZzhoEditorial Office of The Chinese Journal of Geological Hazard and ControlZhongguo dizhi zaihai yu fangzhi xuebao1003-80352021-06-0132391610.16031/j.cnki.issn.1003-8035.2021.03-02202105006Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , TibetTiantian ZHANG0Yueping YIN1Bin LI2Kai HE3Meng WANG4Chaoying ZHAO5Xiaojie LIU6Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, ChinaChina Institute of Geo-Environment Monitoring (Guide Center of Prevention Technology for Geo-hazards, MNR), Beijing 100081, ChinaInstitute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, ChinaChina Geological Survey, Beijing 100037, ChinaSichuan Geological Survey , Chengdu, Sichuan 610081, ChinaSchool of Geological Engineering and Surveying and Mapping, Chang’an University, Xi’an, Shaanxi 710054, ChinaSchool of Geological Engineering and Surveying and Mapping, Chang’an University, Xi’an, Shaanxi 710054, ChinaChalonglongbaqu gully is located on the right bank of Parlung Zangbo. The steeply changing topography has bred a large number of high-level geological disasters, threatening the downstream linear engineering. Therefore, this paper uses multi-source and multi-phase high-resolution remote sensing data to establish remote sensing interpretation signs of high-level geological disasters, determines the types of high-level geological disasters in the study area, and elaborates their development characteristics. The results show that the main types of geological disasters in the study area include high-level ice avalanches, high-level avalanches, and high-level landslides. Among them, there are 3 high-level ice avalanches, all of which are located on a slope with an altitude of 5000 m above the south slope of the upper reaches of the valley, with an area of more than 15×104 m2. There are 19 high-level avalanches, which are mostly distributed in the middle reaches of the valley and high and steep bank slopes on both sides of the upper main ditch. The northern slope is more than the southern slope. There are two high-level landslides located in the upper reaches of the valley, and the landslide is dominated by moraines. Under the action of strong earthquakes or heavy rainfall, the above-mentioned high-level geological disasters are prone to instability and blockage of ditch. After blocking the ditch, it is easy to induce secondary disaster chains such as floods and mudslides, which will cause the risk of blocking the river downstream of Parlung Zangbo.https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.03-02chalonglongbaqu gullyhigh-resolution remote sensinghigh-level geological disastersdisaster chain |
| spellingShingle | Tiantian ZHANG Yueping YIN Bin LI Kai HE Meng WANG Chaoying ZHAO Xiaojie LIU Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet Zhongguo dizhi zaihai yu fangzhi xuebao chalonglongbaqu gully high-resolution remote sensing high-level geological disasters disaster chain |
| title | Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet |
| title_full | Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet |
| title_fullStr | Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet |
| title_full_unstemmed | Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet |
| title_short | Types and development characteristics of high geological disasters in Chalonglongbaqu gully, Bomi , Tibet |
| title_sort | types and development characteristics of high geological disasters in chalonglongbaqu gully bomi tibet |
| topic | chalonglongbaqu gully high-resolution remote sensing high-level geological disasters disaster chain |
| url | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.03-02 |
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