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Quasi-3D slope stability analysis of waste dump based on double wedge failure.
Chen, Chong; Lv, Huayong; Cheng, Zhanbo; Gao, Xu; Cui, Xinnan; Yue, Xingtong.
Afiliación
  • Chen C; Ansteel Beijing Research Institute Co., Ltd, Beijing, 102209, China.
  • Lv H; School of Architecture and Engineering, Shangqiu Normal University, Shangqiu, 476000, China. lvhuayong@sqnu.edu.cn.
  • Cheng Z; School of Engineering, University of Warwick, Coventry, CV47AL, UK. zhanbo.cheng@ntu.edu.sg.
  • Gao X; Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, 100081, China.
  • Cui X; Ansteel Beijing Research Institute Co., Ltd, Beijing, 102209, China.
  • Yue X; Ansteel Beijing Research Institute Co., Ltd, Beijing, 102209, China.
Sci Rep ; 14(1): 6887, 2024 Mar 22.
Article en En | MEDLINE | ID: mdl-38519554
ABSTRACT
The double wedges sliding along the weak layer of the foundation can be observed on the slope of the waste dump and the sliding body is divided into the active wedge and passive wedge by the weak foundation and the failure surfaces of the waste dump. Because the conventional limit equilibrium slice method cannot reflect the polygonal slip surface of the slope of the waste dump with weak foundation, this study proposed a double wedge calculation method for the slope of the waste dump with weak foundation. The limit equilibrium analysis is performed on double wedges by considering the direction and values of the interaction force between double wedges to obtain the safety factor of the slope of the waste dump. Meanwhile, the quasi-3D double wedges stability analysis method of the waste dump slope with weak foundation is proposed by considering the influence of the geometry and sliding direction of the slope surface on the slope stability. The safety factor of the inverted dump slope is 0.82, the volume of the sliding body is 6.43 million m3, and the main sliding direction is 20° south by east. The shear strain rate cloud diagram of the section is 'y' type distribution, and the sliding body is divided into two independent blocks. The safety factor of the sliding body section obtained by the double wedge method is between 0.76 and 0.92, and the closer to the boundary of the sliding body, the greater the safety factor of the section. The quasi-three-dimensional safety factor obtained by theoretical analysis is 0.817. The results show that the calculation results of quasi-3D double wedge are basically consistent with the calculation results of strength reduction method, while the proposed method is simpler. It can be used as a quick method to evaluate slope stability in engineering practice.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido