Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study on simulation method of prestressed anchor cable reinforcement for large toppling slopes
The construction of prestressed anchor cables is an effective means to improve the stability of slopes. Revealing its reinforcement mechanism has important theoretical significance for guiding the design of slope supports. Based on the reinforcement characteristics, anchoring process and failure modes of prestressed anchor cables, this paper proposes a simulation method of the cables in combination with discrete elements. This approach can truly reflect the interaction between mortar, anchor cable and rock mass in the anchorage section, and it can also reflect the existence of anchor piers. Taking the left bank slope of Delsi Hydropower Station as a research object, and aiming at the deformation and failure characteristics of deep flexural toppling, the design principle of prestressed anchor cable reinforcement for large toppling masses is put forward. The stress of anchor cables and the deformation of the slope under the conditions of different support strength, reinforcement position and construction time are analyzed. The reinforcement effect of prestressed anchor cables and the influence on slope stability of each scheme are evaluated. Finally, for high rock slopes that are prone to toppling instability, prevention suggestions are provided during excavation and reinforcement.
Study on simulation method of prestressed anchor cable reinforcement for large toppling slopes
The construction of prestressed anchor cables is an effective means to improve the stability of slopes. Revealing its reinforcement mechanism has important theoretical significance for guiding the design of slope supports. Based on the reinforcement characteristics, anchoring process and failure modes of prestressed anchor cables, this paper proposes a simulation method of the cables in combination with discrete elements. This approach can truly reflect the interaction between mortar, anchor cable and rock mass in the anchorage section, and it can also reflect the existence of anchor piers. Taking the left bank slope of Delsi Hydropower Station as a research object, and aiming at the deformation and failure characteristics of deep flexural toppling, the design principle of prestressed anchor cable reinforcement for large toppling masses is put forward. The stress of anchor cables and the deformation of the slope under the conditions of different support strength, reinforcement position and construction time are analyzed. The reinforcement effect of prestressed anchor cables and the influence on slope stability of each scheme are evaluated. Finally, for high rock slopes that are prone to toppling instability, prevention suggestions are provided during excavation and reinforcement.
Study on simulation method of prestressed anchor cable reinforcement for large toppling slopes
An, Xiaofan (Autor:in) / Ju, Guanghong (Autor:in) / Bai, He (Autor:in)
06.11.2021
2796825 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Brittle and ductile toppling of large rock slopes
| British Library Conference Proceedings | 2000