Underground coal mining is characterized by the formation of extensive pillars. Coal pillars
serve various purposes, and their instability failure characteristics play a vital role in safety …

Underground coal mining has a strong disturbance on surrounding rock strata, causing
inevitable water inflow into mined spaces, which seriously affects safety production. Mine …

To address the problem of unstable large-scale supply of China's renewable energy, the
proposal and accelerated growth of new power systems has promoted the construction and …

Abstract The utilization of Underground Pumped Storage Power Systems (UPSP) addresses
the growing need for energy storage in the face of increasing intermittent energy sources …

Cities play a vital role in social development, which contribute to more than 70% of global
carbon emission. Low-carbon city construction and decarbonization of the energy sector are …

The microscopic pore structure of sandstone gradually changes under long-term immersion,
resulting in dynamic changes in the mechanical and damage properties of sandstone, which …

Roof water inrush at the mine face and shortages of water resources are both problems in
the karst mining area in southwestern China. In this study, field measurements, similar …

The failure and design of coal pillars have always been the focus of research in the field of
mining engineering, and there are often many water resources in goafs with rich aquifers …

Broken coal and rock (BCR) are an important component medium of the caving zone in the
goaf (or gob), as well as the main filling material of fault fracture zone and collapse column …

This work presents experimental tests based on coal collected from a coal mine based
underground water reservoir (CMUWR). The mechanical responses of dry and water …