Method for the construction of drainage works, in particular...
Method of controlling the movement of a longwall excavation fron
Method of reducing ground disturbance during freeze-thaw...
Method of site preparation in environmentally sensitive areas
Methods and devices for ground stabilization
Mine roof support
Mine roof support
Mine roof support control
Mine roof supports
Mine-roof support control mechanism
Modification of geotextile tubes
Modified angled silt fence
Modular fiber log erosion and sediment control barrier
Modular fiber log erosion and sediment control barrier
Modular fiber log erosion and sediment control barrier
Modular reinforced fiber log erosion and sediment control...
Multi-layer liner assembly for a sand trap
Multi-layer liner assembly for a sand trap
Polyurethane-forming composition with adjustable mix...
Porous tubular device and method for controlling windblown...