Piling & Shoring
These 2 separate weirs were located in the Las Vegas Wash river-way immediately adjacent to the Clark County Wetlands Park. The wash, sometimes called and “urban river”, is a 12 mile long channel which feeds most of Las Vegas Valley’s …
Augercast piles are piles which are drilled to depth using a continuous flight auger. A high strength fluid grout is then pumped through the auger as it is removed. Steel reinforcing may then be inserted to provide shear and a bending moment. What is left is a completed reinforced grout column that is high in friction and end bearing at a low cost.
Concentric Drilling is a deep foundation method to used installed pipe pile through almost any ground condition, typically using either a DTH rig or crane. A casing “shoe” is welded to a pipe pile casing and a rig bit installed. A pilot bit is then lowered through the pipe shaft and locks to the ring bit. Together they drill a hole large enough to allow the casing to be pulled into the hole. The pilot bit and ring bit rotate with the drill string while the casing shoe and casing do not rotate. After reaching the desired depth, the pilot bit is unlocked by a slight reverse rotation of the drill string. The drill string and pilot bit are then retrieved through the casing.
Driven piles are made of steel, wood, or concrete. They are installed using an impact hammer and are very versatile and are used to support buildings, bridges, and industrial structures of any size. RLW has driven pile for over 30 years throughout the Intermountain west. Although we drive all types of structural pile, we specialize in steel pipe pile and H-pile driving over 200,000 lineal feet in the last 3 years alone.
Sheet Piles are interlocking steel sections that are driven in the ground with a vibratory or impact hammer to support excavations or soil removal. They are used in both temporary and permanent applications. Since the sheets make a continuous steel wall, they are most useful to stop water infiltration, loose soil infiltration, and migration of soils.
Soil nail / Shotcrete wall is a shoring method where soil slopes, excavations or retaining walls are shored by drilling steel reinforcing bars into a slope and then grouting them into place. Bars or anchors are either inserted into pre-drilled holes or drilled and grouted simultaneously using injection bore drilling methods. Shotcrete is then sprayed over the nail heads to provide a finished wall.
Soldier Pile Shoring consists of piles installed several feet from each other in a picket fence type of alignment. The piles are usually H beams installed with a hammer or into pre-drilled shafts. Timber lagging is then installed between the H beams to restrain the soil. Deeper excavations may require tiebacks to be installed at the piles for additional soil support. Soldier Pile Shoring is very versatile because the size of the piles and the spacing between them can be adjusted to site soil conditions and underground utilities.