Sheetpile Walls Sheetpile walls are formed by pieces of cold or hot rolled steel which interlock. This type of wall can be used in both temporary and permanent conditions. It can be installed relatively fast and provides a wall which can slow water infiltration. Temporary and permanent (tied back) sheetpile walls — Providence, RI H-Beam Walls H-Beam walls can replace sheetpile walls in instances where the latter may not be the most advantageous. In some cases H-Beams are more cost-effective. They can also be pre-drilled, which helps to limit vibrations in a sensitive area, or allows them to be installed where underground conditions such as rocks and boulders make a sheetpile wall unfeasible. Vibrating sheetpiles — Cambridge, MA Secant Pile Walls A series of interlocking, cast in place drilled piers, secant pile walls offer flexibility in the choice of pile diameter and structure. They can be equally effective as load bearing walls as well as curtain walls, and are well suited to vibration sensitive areas and areas with adverse soil conditions. Soil Nailing In the right soil and groundwater conditions, soil nailing is faster and more economical than sheet piling or soldier pile and lagging applications. Passive bars are drilled and grouted through a shotcrete face, effectively knitting the soil together and keeping the face of the excavation from raveling. Soilnail Underpinning Abbott Biolabs