Underpinning
Underpinning Using micropile underpinning in conjunction with soil nail shoring, we can support existing structures adjacent to deep excavations while maintaining the integrity of the buildings. Applications Temporary and Permanent Building Underpinning Allows for basement construction adjacent to an existing building Installation Support building by underpinning existing footings with micropiles Install a shoring system, typically soil nailing, […]
Driven Soil Nail Walls
Driven Soil Nail Walls The Driven Soil Nail shoring system consists of driven steel bars with a composite geotextile fabric and wire mesh face, improving installation time by 50% over conventional shoring methods. Driven Soil Nail vs Drilled Soil Nail Comparison Sheet Applications Temporary excavation shoring Slope stabilization Installation Excavate 5 feet Place geocomposite wall […]
Micropiles
Micropiles What is a micropile? A micropile is a high capacity small diameter pile that can be installed through difficult soil conditions and in limited access. Micropiles are typically installed by advancing casing pipe to rock, drilling a rock socket, then grouting reinforcing steel in the rock socket. In spite of their small diameter, less […]
Soldier Pile Walls
Soldier Pile Walls Anchored soldier pile walls are offered as a solution when the site requires a stiff excavation shoring system, especially with multiple utility conflicts. What is a soldier pile wall? A soldier pile wall is a a “top-down” retaining wall consisting of vertical steel piles, wood lagging, and anchors as required. The purpose is […]
Soil Nail Walls
Soil Nail Walls What is a soil nail wall? A soil nail wall is a a “top-down” retaining wall constructed in 5′ lifts by drilling rows of nails and applying a shotcrete face. The nails start at the existing ground surface and are installed as the ground in front of the wall is excavated in […]
Duke Cancer Center – Deep Excavation Shoring Project – Durham, NC
Duke Cancer Center – Deep Excavation Shoring Project – Durham, NC Deep Excavation Shoring Project Description Duke Cancer Center is a state-of-the-art medical facility constructed in the heart of the Duke Hospital Campus. Excavation for the basement required shoring due to tight site constraints working around an existing facility, highly trafficked patient drop off, an […]
Waltonwood – Shotcrete Face Project – Raleigh, NC
Waltonwood – Shotcrete Face Project – Raleigh, NC Waltonwood – Shotcrete Face Project – Raleigh, NC Waltonwood is an upscale senior living apartment complex built into a large hillside in an urban area. The client’s challenge was to cost effectively develop a difficult site that included a large retaining wall for parking and a building […]
City Center Excavation Shoring Project – Durham, NC
City Center Excavation Shoring Project – Durham, NC Excavation Shoring Project Description The City Center is a 25-story mixed use project with two stories of below grade parking. The project is tightly nestled in an historic area of Durham. Excavation shoring was required to maintain streets on 3 sides of the excavation and historic brick […]
Freddie Mac – Driven Soil Nail Wall Project – McLean, VA
Freddie Mac – Driven Soil Nail Wall Project – McLean, VA Driven Soil Nail Wall Project Description Subsurface Construction completed the first driven soil nail wall project is allowed in Fairfax County, VA. L.F. Jennings (G.C.) selected Subsurface Construction to design and install the ground shoring system for the Freddie Mac Expansion project in McLean, […]
Duke Bed Tower Addition – Anchored Soldier Pile Project – Durham, NC
Duke Bed Tower Addition – Anchored Soldier Pile Project – Durham, NC Anchored Soldier Pile Project Description Subsurface Construction installed anchored soldier piles at the Duke University Hospital Bed Tower Addition. Skanska (CM) selected Subsurface Construction to design and install the ground shoring system. Careful coordination including 3-D modeling was required to install the soldier […]