Tension member for a rock anchor or the like

Three component chemical grout injector

Tie rod support for mine

Tie-rod anchoring apparatus and method

Treatment of inorganic particles with polymer

Treatment of mine tailings

Trench walls and method for constructing same

Tubular lost borehole closure

Undergrond continuous impervious wall and method for installing

Underground barrier construction apparatus with soil-retaining s

Underground continuous impervious wall and method for installing

Underground dam

Underground filling and sealing method

Underground leachate barrier and method of making same

Underground shell-pile continuous wall job practice and its...

Versatile roof bolt assembly

Waste processing attachment and method for environmentally treat

Waterglass-based material for sealing purposes and processes for

Waterstop for foundation elements and method of installation