136050 ⎘
Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings , e.g. by assembling; Lining predominantly with metal; Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members Laggings made of strips, slats, slabs or sheet piles
Asymmetric support structure of entry driven along gob-side under unstable roof in deep mines and construction method thereof
#2METHOD AND SYSTEM OF COAL MINE ROOF STABILIZATION
#3Fill fence system and method for installing same
#4Method and system of coal mine roof stabilization
#5Method and system of coal mine roof stabilization
#6IMPACT RESISTANT CAMBERED LAGGING ELEMENT
#7Mine shaft liner plate system and method
#8MINE SHAFT LINER PLATE SYSTEM AND METHOD
#9STEEL LINERS FOR TUNNELS
#10Reinforcement method and reinforcement structure of the corrugated steel plate structure
#11Reinforcement liner installation mold mounted on a corrugated steel plate structure
#12Rock burst active prevention and control mechanism