Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A feasible approach for engineering-scale 3D blasting numerical modelling incorporating explosive charges and layout design
Abstract The complexity of blasting designs and the extensive computational cost pose significant challenges in accurate prediction using three-dimensional numerical methods. This paper proposes a feasible approach for engineering-scale blasting numerical modelling with the integration of charge structures and layout design in the four-dimensional lattice spring model (4D-LSM). The approach enables the 4D-LSM to simulate intricate blasthole designs and varied charge structures through theoretical derivation and equivalence analysis of blasthole boundary conditions and initiation point, and significantly improves the computational efficiency by combining the submodel method. The accuracy and correctness of the 4D-LSM blasting model were verified through qualitative and quantitative comparison with available single-hole blasting experiments and other numerical predictions. On this basis, the blasting design of the vertical shaft was optimized by combining the 4D-LSM blasting model validated by field monitoring data with the response surface method (RSM). In addition, the applicability of the 4D-LSM blasting model was discussed by examining the effects of particle size, number of boundary layers, and dynamic constitutive model parameters on the calculation results. This study not only further improves the application of the 4D-LSM in the field of large-scale blasting engineering, but also provides an efficient numerical calculation tool for complex blasthole design.
A feasible approach for engineering-scale 3D blasting numerical modelling incorporating explosive charges and layout design
Abstract The complexity of blasting designs and the extensive computational cost pose significant challenges in accurate prediction using three-dimensional numerical methods. This paper proposes a feasible approach for engineering-scale blasting numerical modelling with the integration of charge structures and layout design in the four-dimensional lattice spring model (4D-LSM). The approach enables the 4D-LSM to simulate intricate blasthole designs and varied charge structures through theoretical derivation and equivalence analysis of blasthole boundary conditions and initiation point, and significantly improves the computational efficiency by combining the submodel method. The accuracy and correctness of the 4D-LSM blasting model were verified through qualitative and quantitative comparison with available single-hole blasting experiments and other numerical predictions. On this basis, the blasting design of the vertical shaft was optimized by combining the 4D-LSM blasting model validated by field monitoring data with the response surface method (RSM). In addition, the applicability of the 4D-LSM blasting model was discussed by examining the effects of particle size, number of boundary layers, and dynamic constitutive model parameters on the calculation results. This study not only further improves the application of the 4D-LSM in the field of large-scale blasting engineering, but also provides an efficient numerical calculation tool for complex blasthole design.
A feasible approach for engineering-scale 3D blasting numerical modelling incorporating explosive charges and layout design
Hao, Yi-Min (Autor:in) / Wei, Xin-Dong (Autor:in) / Li, Qin (Autor:in) / Zhao, Gao-Feng (Autor:in)
16.03.2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Incremental explosive energy distribution in blasting design
| Online Contents | 1984
Numerical modelling of destress blasting
| British Library Conference Proceedings | 1996
Firing blasting charges by induction sparks
| Engineering Index Backfile | 1900
Fissuring of rocks under explosive charges
| British Library Conference Proceedings | 2000