Journal ArticleDOI
Processes and behaviors of block topple avalanches resulting from carbonate slope failures due to underground mining
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TLDR
In this paper, the failure process of a steep-dip and layered carbonate slope induced by underground goaf was analyzed using field surveys, centrifuge modeling, and numerical simulations.Abstract:
Major rock landslides are the main type of geological hazards in the mountainous areas of southwestern China, in which failure modes and behaviors are compounded. In this study, field surveys, centrifuge modelling, and numerical simulations were utilized to analyze the failure process of a steep-dip and layered carbonate slope which was induced by underground goaf. These included gravitational bending, interlayer faulting, topple failure of the upper blocks due to underground mining, shearing through the underlying slide-resistant rocks, and catastrophic avalanches. It was concluded that the bending and compaction of the weak interbedded coal seam had occurred on the slope with the effects of gravity. The support for the overburden rocks was lost following the underground mining activities, which led to bedding separation and the generation of cracks. The upper blocks acted on blocks at the toe, and shear failure at the toe was initiated when the force along the joints exceeded the anti-shear strength, which gradually formed an intact failure surface. Then, a rock slide took place which transformed into a catastrophic rock avalanche. The failure process was validated using a FLAC3D simulation and centrifuge testing.read more
Citations
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Hydrogeomorphic Ecosystem Responses to Natural and Anthropogenic Changes in the Loess Plateau of China
TL;DR: In this paper, the authors proposed to balance each ecosystem service, for example, by determining the region's vegetation capacity and its spatial distribution for the sustainable development of the socioecolog...
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Bioremediation mechanisms of combined pollution of PAHs and heavy metals by bacteria and fungi: A mini review.
Shaoheng Liu,Guangming Zeng,Qiuya Niu,Yang Liu,Lu Zhou,Luhua Jiang,Xiaofei Tan,Piao Xu,Chen Zhang,Min Cheng +9 more
TL;DR: This paper summarizes the remediation mechanisms of PAHs and heavy metals by microbes via elucidating the interaction mechanisms of heavy metals with heavy metals, PAH/PAHs metabolites with PAHS and PAH’s withheavy metals.
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Evaluation methods for assessing effectiveness of in situ remediation of soil and sediment contaminated with organic pollutants and heavy metals.
Biao Song,Guangming Zeng,Ji-Lai Gong,Jie Liang,Piao Xu,Zhifeng Liu,Yi Zhang,Chen Zhang,Min Cheng,Yang Liu,Shujing Ye,Huan Yi,Xiaoya Ren +12 more
TL;DR: The review systematically summarizes recent exploration and attempts of the remediation effectiveness assessment based on the content of pollutants, soil and sediment characteristics, and ecological risks and limitations and future research needs of the practical assessment are discussed.
Journal ArticleDOI
Landslide prediction, monitoring and early warning: a concise review of state-of-the-art
TL;DR: In this article, the authors reviewed the recent advances and the state-of-the-art in the essential components of the landslide hazard assessment, such as landslide susceptibility analysis, runout modeling, landslide monitoring and early warning, were reviewed.
Journal ArticleDOI
A comparative study of landslide susceptibility maps produced using support vector machine with different kernel functions and entropy data mining models in China
TL;DR: Li et al. as discussed by the authors applied and compared two GIS-based data mining models, namely support vector machine (SVM) by four kernel functions (linear SVM, polynomial SVM), radial basic function-SVM, and sigmoidal SVM) and entropy models in landslide susceptibility mapping in Shangzhou District, China.
References
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Journal ArticleDOI
The Varnes classification of landslide types, an update
TL;DR: The modified Varnes classification of landslides has 32 landslide types, each of which is backed by a formal definition as mentioned in this paper, and complex landslides are not included as a separate category type, but composite types can be constructed by the user of the classification by combining two or more type names.
Book
Rock Mechanics: For Underground Mining
B. H. G. Brady,Edwin T. Brown +1 more
TL;DR: In this article, the authors discuss the effects of pre-mining state of stress and infinitesimal strain on rock mass structure and characterisation, as well as mine stability, mine seismicity and rockbursts.
Journal ArticleDOI
Slope stability analysis by strength reduction
TL;DR: In this paper, the authors compared the performance of the shear strength reduction technique with the method of slices for a homogeneous embankment and showed that the latter is more accurate than the former.
Journal ArticleDOI
Finite element slope stability analysis by shear strength reduction technique
Tamotsu Matsui,Ka-Ching San +1 more
TL;DR: In this paper, a shear strength reduction technique for finite element slope stability analysis was developed by the authors, where the slope failure is defined according to the shear strain failure criterion.
Journal ArticleDOI
Mechanism on apparent dip sliding of oblique inclined bedding rockslide at Jiweishan, Chongqing, China
TL;DR: In this paper, the authors analyzed the failure mechanism of the Jiweishan rockslide, which was most likely triggered by gravity, karstification, and the processes associated with mining activities.
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