![]() ![]() investigated the impact of land use change on the stability of the Agakri landslide in the northern coastal region of Istanbul (Turkey), spanning mining, reclamation, and afforestation. Plan-view reconstructions of surface model displacements revealed that the rock mass was subdivided into compartments with different relative motions and differential rotations, which played an important role in causing the rapid collapse. Chiara Del Ventisette focused on the results of simulation models to better understand the Vaiont collapse, gaining insight into the internal and surface deformation patterns of the sliding rock mass. The weak bed between the two seams also contributes to the general lack of stability in the mine. The cause of the collapse is the lack of bearing capacity of the columns and the sudden rupture of the hard limestone bed where loads accumulate on them until overloading occurs. performed a retrospective analysis of a case study using empirical and numerical methods using the collapse of Clamart (south of Paris, France) as an example. The results are then used for rockfall analysis. ![]() Based on the data, kinematic analysis was performed using DIPS software to identify rock slope failures. ![]() In the study, geological surveys were performed to obtain site conditions, focusing on rock fractures. conducted a study on several rockfalls that occurred at the ChauThoi quarry (an old open-pit mine in Binh Duong Province, Vietnam). In foreign studies, there are also cases of collapse or landslides caused by mining. Based on the deformation body of Yunlong Mountain in Dafang County, Guizhou Province, Huang Gang analyzed the failure mechanism of rock slopes under goaf conditions by means of bottom friction physical simulation tests, UDEC, and FLAC3D, and obtained the mechanism of gentle mining landslides by using physical simulation tests. The Yanchihe landslide in Yuan’an, Hubei, the Zhengxiong landslide in Yunnan, the Furong mountain collapse in Yibin, Hubei, and the collapse of the Honglianchi Iron Mine in Hefeng, Hubei were all caused by mining at the bottom of the collapsed body. The Wulong Jiguanling landslide occurred under the influence of mining along the slope. Mine mining has a particularly serious impact on geological bodies, which can easily lead to the increase of tension cracks and even collapse, such as the Lianziya collapse in the Three Gorges reservoir area, the Jiweishan rock landslide in Chongqing in 2008, the Guanling landslide in Guizhou, the Kaiyang phosphate mine collapse in Guizhou, and the Nayongpu Sa collapse in Guizhou were all affected by mining at the foot of the slope. The impact of mining on geological bodies is particularly serious. The cause of the landslide disaster in this area is, however, freeze–thaw, which deserves the attention of scholars and the vigilance of the local government.Īs one of the main causes of inducing collapse, human activities (such as road, railway, and airport construction and mining) can change the stress states, landforms, seepage conditions, and other aspects of geological bodies. Causes of the collapse include mining activity beneath the collapsed mass and heightened extreme weather. Under the effects of freeze–thaw, the strength of the rock mass declined and the tension cracks further expanded so that the rock mass experienced an accelerated deformation and finally collapsed. In the winter of 2021, the weather was extreme, with heavy snowfall and low temperatures. The safety ore pillar directly below the collapsed body was compressed and deformed under the action of gravity, thus accelerating the internal deformation of the rock mass and leading to the formation of multiple dominant joints inside the rock mass. Under the effects of mining and unloading, fractures occurred in the rock mass the top of the rock mass was bent and deformed towards the free face and tension cracks were formed on the rear edge. The rock mass exposed in the collapse was dolomite with developed joint fractures. It threatened the transport of the national trunk road, destroyed the branch road and some cement mixing station workshops, and caused serious economic losses. The volume of the collapse was 5.32 × 104 m 3. ![]() The Yizhuxiang collapse was about 35 m in length, 52 m in height, and 29 m in maximum thickness. on 4 February 2022, the perilous rock mass Yizhuxiang in Leizu Town, Yuan’an County, Hubei Province, China collapsed on a large scale. ![]()
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