Hazardous failure phenomena such as rock bursts and slabbing failure frequently occur in
deep hardrock tunnels, thus understanding the failure phenomena and mechanisms of the …

Using goaf as water storage space plays an important role in the ecological environment
and economic development of arid mining areas, while water content affects the rock …

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 …

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 …

Shale gas is becoming a new energy development focus worldwide with advances in
horizontal wells and hydraulic fracturing, and spontaneous water-based working fluid …

Water presence causes a dramatic reduction of sandstone strength. Under compressive
stress conditions, the strength of a rock sample is controlled by frictional parameters and the …

Water weakens rock masses, which induces a series of engineering geological hazards. In
this study, Brazilian splitting and acoustic emission (AE) experiments were conducted on …

An in-depth understanding of how water affects mechanical behavior of coal and fracture
failure modes is important for evaluating the stability of underground engineering. In this …

To study the weakening mechanism of the shear characteristics of water-bearing rock joints,
four types of artificial saw-tooth joints (including tooth inclination angles of 0°, 15°, 30° and …

In this study, the dynamic notch fracture toughness of V-notched rock specimens was
investigated. V-notched semicircular bend specimens made of a medium-grained granitic …