The development of an excavation damaged zone (EDZ) around an underground excavation can change the physical, mechanical and hydraulic behaviors of the rock mass near an underground space. This might result in endangering safety, achievement of costs and excavation planed. This paper presents an approach to build a prediction model for the assessment of EDZ, based upon rock mass characteristics...

Rock engineering constructions are widely attested in energy mining, geothermal development, and underground storage projects [...]

With the increasing requirements for energy, resources and space, numerous rock engineering projects (e [...]

Coal-rock combination refers to the coal and rock as a whole, failure of whole structure is main cause for instability deep underground engineering. In engineering, coal-rock usually under certain hydrogeological conditions, it prone seepage rheological accidents due long-term action water stress. this study, creep constitutive model considering influence moisture content was established based ...