Template-based knowledge reuse method for generating high-speed railway virtual construction scenes

Figures & data

Figure 1. Overall framework.

Figure 2. Modeling of the main project and its surrounding environment.

Figure 3. Reassembly of models in the geographic coordinate system.

Figure 4. Consistency processing on the multimodal spatial data.

Figure 5. Construction process knowledge base.

Figure 6. Crane model decomposition and joint linkage relationship.

Figure 7. Construction method knowledge template.

Figure 8. Visualization of virtual construction.

Figure 9. High-speed railway scene.

Table 1. Advantages of our method.

Item	Our method	Using 3D modeling software	Using animation software
Dynamic editing of virtual construction process	√	×	√
Reusability of construction method	√	×	×
Storage of virtual construction knowledge	√	×	×
Reusability of virtual construction knowledge	√	×	×
Integration with the surrounding environment	Large scale	Small and local areas	Small and local areas

Figure 10. Knowledge reuse at the construction machinery level.

Figure 11. Knowledge reuse at the construction method level.

Figure 12. Knowledge reuse between different projects.

Figure 13. Knowledge reuse at the work site level.

Table 2. Comparison of virtual construction efficiency (Unit: h).

Number of projects	Our method	Using C4D software	Efficiency improvement
1	5	20	75%
2	8	40	80%
5	18	100	82%
10	26	200	87%