Journal de la métallurgie des poudres et des mines

Abstrait

An Overview of the Mechanics of Disaster Rock Masses

Ismail Abiodun Lawal

Rock mass mechanics can be characterized into designing stone mass mechanics and calamity rock mass mechanics in light of science and application. They were developed in terms of their concept, object, scientific essence, and application. Disaster rock mass mechanics' meaning, research method, and theoretical framework were discussed. Fiasco rock mass mechanics is an unequivocally nonlinear discipline that is serious areas of strength for a to concentrate on regular and misleadingly prompted calamities. In its critically unstable state, the rock mass system where disasters occur exhibits extreme spatial and temporal nonlinearity. Therefore, a statistical analysis of highly probable events is necessary for disaster prediction and forecasting to be effective. Finding the quantitative or semi-quantitative relationship between physical and biological information and the instability of rock mass systems could be the direction of disaster prediction efforts.

For a deep geological repository of high-level radioactive waste, the mechanical behavior of the host rock is crucial to its isolation as a natural barrier in the multi-field coupling environment. For a superior comprehension of stone in China's Beishan pre-chosen region for geographical removal of significant level radioactive waste, a progression of examinations were completed on in-situ pressure field of rock mass at profundity, strength and misshapening qualities of rocks under various pressure and temperature conditions, and rock boreability and flexibility to Passage Exhausting Machine (TBM) innovation. The findings indicate that Beishan granite is suitable for geological disposal because it possesses the typical characteristics of a hard, brittle rock with a low permeability. In the interim, another stone mass appropriateness assessment framework was proposed, and the stone mass fundamentally made out of Beishan rock was shown to be reasonable for geographical removal. Additionally, the constructability of Beishan stone at designing scale was tried and confirmed through field tests in the Beishan Investigation Passage (BET). In this section, we present the most recent developments in the Beishan underground research laboratory (URL) for geological disposal as well as a summary of the main findings of rock mechanics research on Beishan granite over the past few years.