Deep underground space model based on sub-safety zone nodes and generation method

The invention provides a deep underground space model based on sub-safety area nodes. The deep underground space model comprises a chamber (40), a vertical evacuation body, a horizontal evacuation channel, a vertical evacuation structure and a sub-safety area structure. The horizontal evacuation passage comprises a first-stage evacuation passage (11), a second-stage evacuation passage (12), a third-stage evacuation passage (13) and a fourth-stage evacuation passage (14), the vertical evacuation structure comprises a first-stage vertical structure (31), a second-stage vertical structure (32) and a third-stage vertical structure (33), and the sub-safety area structure comprises a first-stage sub-safety area structure (21), a second-stage sub-safety structure (22) and a third-stage sub-safety area structure (23). According to the model, a deep underground space three-dimensional evacuation network is formed by taking sub-safety areas as nodes and evacuation paths as lines, so that crowd evacuation is guided, eva