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Toxic gases released during drilling and blasting operations in underground powerhouse of hydropower stations pose a serious threat to the safety of super-large cavern construction. This study takes the Level Ⅳ main pl...

The semi-underground double-storey squat silo (SDSS) is innovative storage structure. The underground section of SDSS uses shallow geologic energy for low-temperature storage, indicating its potential suitability for lon...

Abstract Superalloy is the only utilizable material for underground coal gasification channel joint. In this research, the high temperature gas flow erosion wear behavior of superalloy with strengthened layer by boronizi...

This study investigates the fragmentation expansion and water storage characteristics of collapsed rock in overlying strata during its formation. Pre-static loaded fractured samples of four typical roof rock types-coarse...

In underground mining and tunneling projects, directional fracture-controlled blasting is critical for precise tunnel formation and reducing over- and under-excavation. However, the presence of well-developed joints in r...

When using the blasting caving method to treat goaf, the collapsing ore and rock can cause shock disturbances to the roof of the lower stope, which may lead to stability risks. This study takes the goaf treatment project...