Ground Treatment
Drill Tech Drilling and Shoring Inc. builds earth retention systems for various applications.
Drill Tech Drilling & Shoring, Inc. designs and builds ground treatment for numerous applications
including cement grouting, compaction grouting, and cutter soil mixing (CSM)
Cement Grouting
Cement grouting improves ground strength and stabilizes loose soil.
Cement grouting, also known as “permeation grouting,”
is the pressurized injection of flowable cement-based grout into the ground to improve strength, reduce permeability, and stabilize loose soil. Cement grouting is performed by drilling holes into the area to be grouted to intercept cracks, voids, joints, fractures, and fissures. A grout mix made up of neat cement, water, and special additives is pumped under pressure through the drilled holes in order to permeate the surrounding ground.
Stabilization of loose gravel and shot rock 
Grouting of tunnel lining voids
Fractured rock treatment for dam foundations
Sealing and cut-off grouting
Compaction Grouting
Compaction grouting stabilizes weak soil.
Compaction grouting is used to stabilize weak soil strata by displacing the soil in-situ, resulting in a denser, improved ground condition.
During compaction grouting, a very stiff grout is pumped through a driven or drilled casing in stages as the casing is removed, forming grout bulbs, which displace and densify the surrounding soils.
Stabilize existing foundation soils
Settlement control
Structural re-leveling
Sinkhole remediation
Cutter Soil Mixing
Drill Tech is continually at the forefront of the geotechnical construction industry, utilizing innovative new technologies for earth retention and ground treatment. Over the past 15 years, Drill Tech has expended a tremendous amount of time and effort to further develop the use of the cutter soil mix method for earth retention and ground treatment needs.
For earth retention applications, cutter soil mixing (CSM) is a method of constructing an impermeable retaining system by mixing native soils with cement and/or bentonite grout.
A continuous wall is formed by overlapping a series of rectangular soil mix panels. The panels are typically reinforced with steel beams for structural purposes. CSM is mainly used for stabilizing soft or loose soils. However, the cutter technology extends the applicability of the method to much harder strata when compared to other methods of soil mixing.
For non-earth retention applications, CSM is used to improve the characteristics of the in-situ soil, resulting in higher compressive strengths and lower permeability.
CSM is used as a ground improvement method to create homogeneous foundation support and increased bearing capacity, and to mitigate liquefiable soils. CSM can also be used as a barrier to contain the migration of underground contaminants.
High productivity
Native soils are used as the construction material
Can be used in very dense soils and weathered bedrock
Minimal generation of spoils
No vibrations and little noise during construction
Cut-off walls
Excavation shoring in saturated and loose soil conditions
Shaft construction
Foundation support
Liquefaction mitigation