Physical simulation of roadway surrounding rock cumulative failure characteristics under dynamic loading and energy-absorbing support solutions

This project framework outlines how to study the progressive failure of rock surrounding underground roadways when both static and dynamic loads act on it. It uses physical‑similarity modeling to examine cumulative deformation, crack growth, and instability in deep mining excavations. The physical model is built from a mix of sand, gypsum, calcium carbonate, and mica powder to replicate geological layers, following a defined geometric similarity ratio. Dynamic disturbances are simulated with a pendulum‑based impact loading system that delivers precise energy levels. The structural response is examined using multi‑channel acoustic‑emission monitoring, high‑speed imaging, and displacement sensors. Special attention is given to testing energy‑absorbing support solutions to see how well they reduce

dynamic damage and prevent catastrophic failure. The project provides detailed guidance for M.Tech students on setting up experiments, analyzing acoustic‑emission data, and modeling energy‑dissipation mechanisms in rock support systems. It serves as an academic resource for research direction, experimental design, and data validation in geotechnical and mining safety engineering.

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