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Search info@hengxianghongye.comUSA · Sammamish, WA

Critical infrastructure ground engineering

Strengthening the ground beneath critical infrastructure

Engineered ground improvement, foundation stabilization and precision re-leveling that protect asset life while roads, rail, ports, airports and utilities keep moving.

Selected audience

Infrastructure

Use the navigation above to explore a different client pathway.

20+

years focused on settlement control

1,000+

completed engineering projects

148

domestic and international patents

14

published academic papers

Challenges we solve

Innovative Remediation Solutions to Stabilize Municipal Underground Foundations

A variety of geotechnical and foundation defects frequently occur on project sites. We deliver tailored engineering remediation solutions for different geological conditions. Supported by field-proven project cases and technical data, we efficiently resolve complex foundation challenges.

Pipeline inflow and seepage condition hero image

INFRASTRUCTURE · CHALLENGES

Pipeline Inflow and Seepage

Seal water leaks around pipelines and stabilize surrounding loose soil to safeguard pipeline integrity.

Weak or poorly compacted soil beneath infrastructure

Ground condition

Weak or Poorly Compacted Soil

The in-situ soil is inherently weak, and compaction during construction fails to meet design requirements.

Infrastructure foundation settlement

Asset performance

Infrastructure Foundation Settlement

Stabilize settled building and structure foundations to stop further displacement.

Voids, collapse and soil erosion beneath infrastructure

Subsurface risk

Voids, Collapse and Soil Erosion

Groundwater seepage continuously scours soil particles, washing away fine grains and gradually forming cavities inside the soil.

Insufficient soil bearing capacity

Load capacity

Insufficient Bearing Capacity

Reinforce weak subgrade to satisfy load demands for new and existing structures.

Pavement and slab settlement on infrastructure

Structural movement

Pavement and Slab Settlement

Raise and stabilize sunken pavement slabs without major excavation or slab demolition.

Sectors

Serving the assets communities depend on

Sector pages bring together typical risks, constraints, relevant solutions and comparable project experience.

High-speed railway infrastructure

Railways

Remediation of track beds, transition zones, platforms and rail-side structure defects.

Highway bridge infrastructure

Highways & Bridges

Remediation of structural defects in highway subgrades, bridge abutments and transition zones.

Airport infrastructure

Airports

Remediation of foundation defects for airport runways, aprons, taxiways and associated subgrades.

Port and harbor infrastructure

Ports & Harbors

Remediation of foundation defects at berths, storage yards, revetments and backland areas.

Power plant and utility infrastructure

Power Plants & Utilities

Professional foundation defect remediation for power plant structures, equipment bases, substations and pipe galleries.

Public and municipal assets

Public & Municipal Assets

Targeted remediation for municipal road, underground tunnel and plaza foundation defects.

Solutions

A controlled path from movement to stability

The repair approach is selected around ground conditions, structural response, access, required outcome and operating constraints.

Ground improvement and soil stabilization process

Improve capacity

Ground Improvement & Soil Stabilization

Utilizing non-disruptive and controllable technology, composite materials are precisely injected into weak soil layers to form a high-strength grout-soil composite matrix.

Infrastructure settlement repair

Restore stability

Ground Improvement & Soil Stabilization

Halt progressive foundation settlement and stabilize structures using non-disruptive, precision techniques.

Infrastructure lifting and re-leveling

Precision correction

Lifting & Re-Leveling

Achieve millimeter-accurate elevation control to correct tilting, differential settlement, and floor flatness.

Foundation support and reinforcement

Targeted support

Foundation Support & Reinforcement

Enhance load transfer and long-term performance by creating a reinforced soil-matrix supporting the existing footing.

Void filling and collapse prevention

Close hidden risk

Void Filling & Collapse Prevention

Fill subsurface voids, sinkholes, and eroded cavities caused by soil migration or water infiltration.

Waterproofing and seepage control

Rapid response

Waterproofing & Seepage Control

Seal active water pathways and mitigate infiltration to protect underground assets and soil integrity.

Patented engineering platform

Non-destructive, controllable soil stabilization

Small access points, staged inorganic material injection and real-time monitoring allow the team to strengthen weak ground and manage lifting response with a limited construction footprint.

01

Investigate

Define the condition and performance target.

02

Inject

Treat designed zones through small access points.

03

Monitor

Track structural response throughout delivery.

04

Verify

Document levels, movement and completion data.

Selected project experience

The problem, the engineering decision and the result

Case studies show how the team moves from assessment through construction and verification.

Rail · Foundation lifting

Beijing–Shanghai High-Speed Railway Foundation Lifting

Controlled foundation lifting delivered for a major rail infrastructure asset.

Aviation · Ground improvement

Airport Service Facility Ground Stabilization

Low-disruption soil stabilization planned around active airport operations.

Port · Settlement repair

Port Quay Settlement Stabilization

Targeted ground treatment to support a working quay and extend asset life.

Technical resources

Evidence for better project decisions

Technical guide · 8 min

Ground Improvement for Operational Infrastructure

A planning guide for strengthening ground while protecting access and service continuity.

Engineering insight · 6 min

How Controlled Injection Supports Re-Leveling

How staged treatment and real-time measurement work together during precision correction.

Download · Checklist

Infrastructure Asset Assessment Checklist

The site, structural and operational information engineers need before recommending a repair path.

Start with the condition

Not sure which engineering path fits your asset?

Share photographs, drawings or monitoring information. The team can review the condition and recommend a practical next step.