Prime Resins is proud to offer solutions for many varied geotechnical applications.

TUNNELING:
Prime performance below ground: grouting for stability, safety and success

   
Grouting non-cohesive soils and karst areas prior to and during boring is critical in stopping water flow and preventing collapse or settlement of the boring zone. Grouting provides a stable shell or crown for the Tunnel
Boring Machine (TBM) to pass underneath, minimizing the likelihood of wash-out or face collapse, potentially causing settlement of the ground or structures (railroad tracks, roads, etc.) above.

Grouting is also useful at entrance and exit pits for water stop and preventing soil collapsing. Prime Resins’ permeation grouting solutions present less stress and damage to cutterheads as opposed to other grouting solutions such as slurry or sodium silicate.

UNDERPINNING / FOUNDATION SUPPORT:
Non-disruptive underpinning

Prime Resins’ grouting solutions can be used to provide underpinning support of existing structures. This can typically be accomplished with little to no disruption to operations, job site or surrounding environment.

Whether used to stabilize existing buildings or new construction, underpinning by means of permeation grouting is an ideal solution to control sloughing and avoiding settlement. Permeation grout strengthens and stabilizes subgrade soils and significantly increases bearing capacity of the soil without excavating the existing footing. Permeation grouts can also be used to support and strengthen helical piers. If lifting the foundation is required, Prime Resins offers Precision Lift® polyurethane foundation lifting solutions as well.

Case study: 1028 Market St. - San Francisco, California

HAZARDOUS WASTE AND WATER CONTAINMENT:
Grouting solutions to stop leaks, seal voids, and contain hazards

Chemical grouts can be injected around and underneath water sources or hazardous waste to contain and stop leaching through loose soils and voids. Filling voids and binding loose soils forms a subsurface barrier or wall of treated soil that will contain water or hazardous waste and eliminate migration.

Containing hazardous waste
While subterranean soil remediation is costly, the public health and environmental costs, especially if the contamination may reach ground water, is exponentially more costly to address. Depending on the Federal EPA corrective action plan (CAP), the State EPD CAP or relevant authority; permeation grout can provide a longterm solution, with no further corrective action required.
Alternatively, to alleviate the cost and inconvenience of intensive long-term monitoring, excavating the entire plume may be the optimum solution.

Containing water sources
These grouting solutions can also be used to contain water by filling voids and binding loose soils to stop leaks in levees, earthen damns or seepage cut off walls.

PRE-EXCAVATION:
Protect adjacent structures with pre-excavation soil stabilization

Excavation support with chemical grout is a method of supporting structures and soil adjacent to planned excavations. Chemical grout turns loose soils into stable soil, allowing for a safe excavation without damaging adjacent buildings or structures.

Solidifying soils before excavation
Excavation support is needed for subsurface trenching when working with soft soils and/or soils with high water tables. Permeation grout is a very low viscosity grout, designed to penetrate fine silts, sands, course sands and top soil to a desired depth. This could be below the water surface, below the water bed, or all the way to bedrock. The grout remains fluid until polymerization, allowing for excellent penetration. It is ideal for geotechnical use in humid environments and sandy soils, ensuring that nearby structures avoid wash-out during trenching.

Case Study: Pre-excavation grouting - Interstate highway, USA

ROAD & BRIDGE REHABILITATION:
A solid substrate is fundamental to roadways and bridges

Over time, forces of nature take their toll. Decomposing soils, erosion, freeze-thaw cycles and groundwater migration can break down this foundation. This is a common occurrence in causing sinkholes in roads and settling at bridge approaches and bridge abutments. Injecting chemical grouts into loose soils, voids, pores and fissures will strengthen the earthen substrate and provide watertight encapsulation. DOTs are responsible for many structures requiring stabilization and void filling. Our products meet or exceed existing DOT specifications for all geotechnical applications.

Case Study: Highway stabilization, I-40, North Carolina

SEAWALL / BULKHEAD REPAIR:
Revive bulkheads and seawalls with precision grouting

Seawalls or bulkheads can be repaired with chemical grouts without the use of excavation or heavy equipment, with minimal disturbance and often times without permitting. Injecting hydrophobic grout behind the seawall will seal off erosions points, often times at the footer, seams and joints. The grout also fills voids and stabilizes loose soil, ultimately restoring the integrity of the structure at a fraction of the cost of replacement.

Case Study: Marina Project - Panama City Beach, Florida