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Sinkhole Remediation

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What is Sinkhole Remediation?

Sinkhole remediation restores stability to areas affected by subsurface voids and collapses. Using trenchless polymer injection, cavities are filled, soils are reinforced, and settlement is corrected to protect infrastructure and prevent future sinkhole activity.

Problems Solved

  • Sudden ground collapse threatening structures or roadways
  • Subsurface voids forming in karst terrain or soluble soils
  • Soil erosion and groundwater migration causing instability
  • Structural damage from uneven settlement
  • High costs and disruption of excavation-based repairs

Types of Polymers Used

High-Density Polyurethane Foams

  • Expands to densify and stabilize loose backfill soils
  • Provides lightweight reinforcement without added soil pressure
  • Cures rapidly to minimize operational disruption

Structural Polyurethane Resins

  • Creates rigid reinforcement zones behind walls and utilities
  • Transfers structural loads to stable ground layers
  • Extends service life of supported structures

Hydro-Insensitive Polymers

  • Expands and cures in wet or groundwater conditions
  • Seals voids and prevents erosion in saturated soils
  • Provides long-term durability in challenging sites
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Benefits of Sinkhole Remediation

Sinkhole remediation with polymer injection provides rapid stabilization and void filling without excavation. These solutions protect property, infrastructure, and public safety in sinkhole-prone regions.

Safe, Trenchless Solutions for Sinkhole-Prone Areas

  • Fills voids and restores support in sinkhole areas
  • Prevents collapse and structural damage from soil loss
  • Provides long-term stability without excavation
  • Protects infrastructure and communities in high-risk zones

Key Applications

Residential Properties

Restores stability beneath homes in sinkhole-prone areas

Commercial Buildings

Protects foundations from settlement due to voids

Roadways & Highways

Prevents sinkhole collapse beneath transportation corridors

Utility Corridors

Stabilizes soils around pipelines and conduits in karst zones

Industrial Facilities

Provides durable support beneath tanks, pads, and equipment

Public Infrastructure

Stabilizes schools, hospitals, and municipal assets at risk of collapse

Services

Sinkhole remediation is supported by these services:

Void Filling

Void Filling

Fills underground cavities and sinkhole formations

Soil Stabilization

Soil Stabilization

Reinforces weak soils above soluble rock formations

Settlement Mitigation

Settlement Mitigation

Corrects differential settlement from soil collapse

Structural Reinforcement

Structural Reinforcement

Provides long-term strength for at-risk assets

Chemical Grouting

Chemical Grouting

Seals voids and stabilizes soils to prevent groundwater erosion

Deep Injection (UDI)

Deep Injection (UDI)

Compacts underlying soils to strengthen sinkhole-prone areas

How the Process Works

1

Investigation

Areas inspected for voids, sinkholes, and unstable soils

2

Planning

Injection design tailored to geological and soil conditions

3

Access

Small-diameter injection points installed with minimal disruption

4

Injection

Expanding polymers fill voids and stabilize surrounding soils

5

Monitoring

Placement tracked in real time to ensure complete remediation

6

Validation

Final inspection confirms restored stability and performance

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