Characteristics and mechanisms of coupled road and rainfall-induced landslide in Sichuan China
| Autor: | Kun He, Guotao Ma, Xiewen Hu, Gang Luo, Xuefeng Mei, Bo Liu, Xingxiang He |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Geomatics, Natural Hazards & Risk, Vol 10, Iss 1, Pp 2313-2329 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1947-5705 1947-5713 19475705 |
| DOI: | 10.1080/19475705.2019.1694230 |
| Popis: | Field reconnaissance, geological mapping and photographic interpretation are utilized to study the failure mechanisms of July 2 catastrophic debris slide in 2017. The results suggested that the landslide was a reactivation of an ancient landslide after periods of relative dormancy, as manifestation of a retrogressive motion, which is triggered by the continuous engineering excavation as leads to rock mass unloading and decrease of mechanical properties of rock–soil mixture. The reactivated zone dominantly spread on the upper part of the ancient landslide area. The frequent tectonic movements rendered the potential landslide zone by fragmenting the structure. The fractured and fissile rock mass became further weakened by incessant rainfall that finally led to the failure of the rock mass. |
| Databáze: | Directory of Open Access Journals |
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