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The Huailiangzi landslide has experienced significant deformation under continuous heavy rainfall, posing a serious threat to the safety of residents’ lives and property. Based on detailed geological surveys, a landslide numerical model was constructed using the finite difference method and a coupled seepage-stress analysis approach was employed to investigate the stability of the landslide, as well as the evolution characteristics of the seepage field and displacement field under different rainfall scenarios. The results show that the Huailiangzi landslide is generally stable under natural conditions. However, under the influence of external adverse factors such as heavy rainfall, the stability of the slope significantly decreases. In particular, under continuous rainfall, the increase in pore water pressure is substantial, significantly increasing the likelihood of overall landslide movement. The findings provide important theoretical support for early warning systems and mitigation engineering of similar landslides.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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