Railway Geohazard Mitigation & Railroad Engineering

GSI Railway Industry

What is Railroad Track and Soil Stabilization?

One of the most critical railway geohazard mitigation & Geotechnical Engineering Solutions GSI provides is Railroad Track and Soil Stabilization. Railroad soil stabilization refers to the process of strengthening the ground or subgrade beneath a railroad track to ensure its stability and prevent settlement or other types of soil failure. This is important because the stability of the track is crucial for the safe and efficient movement of trains.

Railroad track stabilization is the process of maintaining and improving the stability of the track structure, which includes the rails, ties, ballast, and subgrade. The stability of the track structure is crucial for the safe and efficient movement of trains, as any irregularities or weaknesses can cause derailments or other safety hazards.

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Railroad Track Stabilization Methods

There are several methods of railroad track stabilization that can be used depending on the specific track conditions and requirements of the railroad. Some common methods include:

This involves regular inspection and maintenance of the ballast, which is the layer of crushed rock or gravel that supports the ties and rails. Ballast maintenance can include cleaning, tamping, and adding new ballast to improve drainage and stability.

Railroad ties, which are typically made of wood or concrete, can deteriorate over time and lose their stability. Replacing damaged or worn-out ties can help maintain the stability of the track structure.

The subgrade, which is the layer of soil or other material beneath the ballast, can also affect the stability of the track structure. Stabilizing the subgrade can involve methods such as soil reinforcement, chemical stabilization, or grouting.

Railroad Soil Stabilization

Railroad soil stabilization refers to the process of strengthening the ground or subgrade beneath a railroad track to ensure its stability and prevent settlement or other types of soil failure. This is important because the stability of the track is crucial for the safe and efficient movement of trains.

GeoStabilization’s innovative railway geohazard mitigation solutions have been critical to the success of numerous railroad projects completed by our skilled Engineers. High mobility and rapid installations mean that track closures can be minimized or eliminated during shallow landslide repairs. Trains are able to run their tracks on schedule and the repair often costs half of more traditional repairs such as caissons, piling, and retaining walls. Our designs can widen embankments and ensure soil stabilization for many years to come.

RailJET®

RailJET® is a modified jet grouting process specifically for railroad subgrade stabilization that utilizes a high-flow, horizontal jet of fluid to mix existing soil with a cementitious slurry. It is a hydrodynamic mix-in-place technique producing a soil-cement column or rigid inclusion to reinforce the subgrade in both bearing and shear. The diameter of inclusions is dependent on actual in-situ soil conditions; however, it will be a minimum of 9-inches based on injection pressures and drill bit configurations. The process will also inherently fill ballast pockets where they exist.

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Railway Bridge Abutment Repair

Railway bridge abutment repair refers to the process of repairing or strengthening the foundation of a railway bridge at its abutment, which is the point where the bridge meets the ground or supporting structure. Bridge abutment repair is necessary when the abutment is weakened or damaged due to various factors such as age, weather, soil erosion, or other environmental factors. Repairing or strengthening the abutment is crucial for the safety and integrity of the bridge structure, as any weakness or instability can result in structural failure and potential hazards for trains and passengers.

Abutment repair can involve various techniques depending on the specific conditions and requirements of the bridge. Some common repair methods include:

  • Reinforcement of existing structure: This involves adding structural support such as steel or concrete beams to reinforce the existing abutment.
  • Grouting: This involves injecting grout into the soil around the abutment to stabilize and strengthen the foundation.
  • Soil stabilization: This involves adding materials to the soil to improve its strength and stability, such as lime or fly ash.
  • Underpinning: This involves excavating the area around the abutment and adding new foundations or piles to support the existing structure.
  • Erosion control: This involves measures such as installing riprap or retaining walls to prevent further erosion of the soil around the abutment.

Specialized Tools for Railway Geohazard Mitigation

Our innovative tools allow us to complete remote and difficult to access railways. By using our Soil Nail Launcher™, we can provide an expedited installation, reducing track down time and permitting regular train flow. We can install multiple rows of various lengths of grouted Self-Drilling SuperNails® through the gabion baskets for the entire length.

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With GeoStabilization’s expertise in railway geohazard mitigation, our railroad clients can be assured that the best solution will be applied in record time. Our fleet of specialized limited-access equipment coupled with an industry-leading safety record, rapid deployment, and commitment to quality ensures the solution will be installed the first time correctly.

If you are interested in a no-obligation site visit to determine if our railway geohazard mitigation services fit your needs, call us at 855.579.0536 or fill out our contact form.

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