Based on the engineering background of water dissolving mining for hydrocarbon storage in multi-laminated salt stratum, the mixed mode fracture toughness and fracture trajectory of gypsum interlayers soaked in half-saturated brine at various temperatures (20°C, 50°C and 80°C) were studied by using CSNBD (centrally straight-notched Brazilian disc) specimens with required inclination angles (0°, ...

As Australia and the world transition to net zero emissions, hydrogen will continue grow in importance as a clean energy source, with underground storage (UHS) expected be key component of this new industry. Salt (halite) caverns are preferred option for hydrogen, given their scale, stability high injection withdrawal rates they can support. The use salt storing gas is an established industry N...

The open excavation and concealed construction method is widely adopted for the of bias double-arch tunnels. However, mechanical behavior tunnel during whole period by using not well understood, basis organization optimization lacking. Based on an open-buried Xiajuan Road, Changsha City, China, on-site monitoring was carried out in terms deformation steel arch primary lining, stress reinforceme...

the rock masses in a construction site of underground cavern are generally not continuous, due to the presence of discontinuities, such as bedding, joints, faults, and fractures. the performance of an underground cavern is principally ruled by the mechanical behaviors of the discontinuities in the vicinity of the cavern. during underground excavation, many surrounding rock failures have close r...

Horizontal cavern structures are discussed as a means to constructing energy storage facilities in bedded salt formations. During their design, the spacing of injection and discharge boreholes for solution mining is an important variable determining length, shape construction cost, but also influencing long-term mechanical behavior during oil or gas. Increasing borehole has been suggested order...