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Drilled Shaft Foundations
Drilled shafts, also known as, cast-in-drilled hole (CIDH) piles, caissons, drilled piers or bored piles are used for deep foundation solutions to high axial and / or lateral loads challenges throughout the world. Excavation of a cylindrical borehole into which reinforcing steel and fluid concrete is cast or placed, forms the drilled shaft foundation elements. Drilled shafts can provide cost effective, high capacity deep foundation systems in a variety of subsurface conditions with differing geometries.Anderson Drilling has over 50 years of experience in the excavation and installation of drilled shafts throughout the western United States. Our depth of experience is complimented by innovative and versatile equipment capabilities that enable us to provide several different types of drilled shaft foundation support elements including cast-in-drilled-hole (CIDH) piles, auger-cast-in-place (ACIP) piles and micropiles.Anderson Drilling is the leader in drilled shaft foundation construction whether under dry, wet or hard rock conditions. Our drilled shafts are used to support bridge infrastructure, high-rise buildings, commercial / retail offices, utility structures, airport buildings, hospitals, schools and homes.
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Earth Retention Systems
Anderson Drilling has been installing earth retention systems throughout the Western U.S for over two decades. Our systems have been used for both temporary and permanent soil retaining solutions. The need for soil retention is as varied as the type of system utilized. The most popular solutions include soldier piles, soil nails and tiebacks. Our installation experience and in-house knowledge of these systems is second to none.The Soldier Pile System consists of an engineered system of closely spaced vertically drilled piles. The open spaces between the drilled soldier piles often require "shoring". The shoring is most often accomplished with wood lagging or steel sheets. The soldier pile system is a cost effective solutions for shallow vertical excavations. The Soil Nail System utilizes an engineered network of closely spaced steel bars ("nails") to reinforce and strengthen the existing vertical or sloped ground surface. This process creates a soil composite mass stable enough to retain the ground behind it. This system is often used when the construction proceeds from the "top down."The Tieback System incorporates an engineered system of high strength steel cables (tendons) that are drilled and grouted in-place. The Tieback method can provide a stand-alone, high capacity retaining system or be used to augment a soldier pile system in deep excavations.
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Large Diameter Access Shafts
Anderson Drilling has been installing large diameter access shafts for over 15 years. These shafts that range in finished diameter from 96" and greater, up to 175 feet in depth, have proven to be a safe and cost effective solution to a variety of subsurface construction challenges including micro-tunneling operations, pump station construction, manhole installation and even missile silo construction.
Our unique equipment and tooling capabilities combined with our drilling methods have positioned Anderson Drilling as the leader in large diameter auger excavations. We have successfully excavated these large shafts under both dry and wet conditions.
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Contaminated Soil Removal
The redevelopment of our urban areas has never been more challenging for owners or contractors, especially where contaminated soil removals are involved. Poor access, limited working space, stringent safety requirements and experience all factor into the level of success of a remediation project.
Anderson Drilling’s equipment versatility, high safety standards and experience with contaminated soil removal are unmatched in the drilling industry. Our innovative approach to contaminated soil remediation has proven to be a cost effective and time efficient method.
We have experienced OSHA Hazwopper trained personnel to meet your project requirements.
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