A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study on the Influence of Tunnel Excavation Blasting on the Safety of Accumulation Slope at the Entrance
During the tunnel blasting, with the accumulation of blast damage in the accumulation layer, accidents such as slope landslide of the accumulation layer and tunnel collapse quickly occur. Based on the Qiaopingshan tunnel project in Chongqing, the stability of the accumulation slope under different blasting loads and the variation law of its velocity field, displacement field and force chain distribution between particles in the accumulation layer are studied by using FLAC3D-PFC3D coupling analysis method. And a new method is proposed to solve the safety factor of the slope of the accumulation layer coupled with the discrete element and the finite element, that is, the strength of the physical and mechanical parameters between the particles of the accumulation layer is reduced, and the ratio of the inter-particle tension and the cohesive force chain is used as the evaluation standard to solve the safety factor of the slope.
Study on the Influence of Tunnel Excavation Blasting on the Safety of Accumulation Slope at the Entrance
During the tunnel blasting, with the accumulation of blast damage in the accumulation layer, accidents such as slope landslide of the accumulation layer and tunnel collapse quickly occur. Based on the Qiaopingshan tunnel project in Chongqing, the stability of the accumulation slope under different blasting loads and the variation law of its velocity field, displacement field and force chain distribution between particles in the accumulation layer are studied by using FLAC3D-PFC3D coupling analysis method. And a new method is proposed to solve the safety factor of the slope of the accumulation layer coupled with the discrete element and the finite element, that is, the strength of the physical and mechanical parameters between the particles of the accumulation layer is reduced, and the ratio of the inter-particle tension and the cohesive force chain is used as the evaluation standard to solve the safety factor of the slope.
Study on the Influence of Tunnel Excavation Blasting on the Safety of Accumulation Slope at the Entrance
Atlantis Highlights in Engineering
Ahmad, Zakiah (editor) / Srivastava, Amit (editor) / Raman, Sudharshan N. (editor) / Huang, Feng (author) / Li, Siyuan (author) / Xue, Shunhang (author) / Yang, Yonghao (author) / Wu, Shuangjiang (author)
International Conference on Structural Seismic and Civil Engineering Research ; 2023 ; Nanjing, China
2023-12-08
11 pages
Article/Chapter (Book)
Electronic Resource
English
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