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Controlled modulus columns (CMC) in the UAE

A ground-improvement approach using designed inclusions, coordinated with the load-transfer arrangement and project acceptance criteria.

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Controlled modulus columns (CMC) — installation and ground treatment overview

HOW IT WORKS

Installation sequence

01

Design the treatment

Review ground conditions and the approved inclusion and load-transfer design.

02

Install inclusions

Install the elements using the specified equipment and controlled sequence.

03

Verify performance

Maintain installation records and undertake project-specified verification.

APPLICATION & ENGINEERING

Settlement control below slabs and shallow foundations

Rigid inclusions improve composite ground performance. The load-transfer arrangement between the structure, granular platform and inclusions is part of the design.

TECHNICAL SERVICE GUIDE

Engineering principles & quality control

Controlled modulus columns (CMC) — system arrangement123
1Rigid inclusions2Load-transfer platform3Surrounding ground

When to choose this method

Controlled modulus columns are rigid inclusions used to improve the response of a ground-foundation system. They differ from structural foundation piles: the load-transfer platform and interaction with surrounding soil are essential parts of the design.

Planning the installation

The ground investigation, groundwater conditions and structural requirements inform method selection. Working access, installation sequence and effects on neighbouring structures are reviewed before execution.

Construction control points

  • Review ground conditions and the approved inclusion and load-transfer design.
  • Install the elements using the specified equipment and controlled sequence.
  • Maintain installation records and undertake project-specified verification.

Control location, depth, continuity and material strength, together with the load-transfer layer. Evaluate settlement and verification tests against the specified ground-improvement criteria.

FROM SITE DATA TO A TECHNICAL PROPOSAL

Define the ground. Plan the solution.

Share the site location, geotechnical report, structural loads or excavation requirements, drawings and target programme. These inputs allow the engineering team to assess method suitability, equipment access, installation sequence and the required verification plan.

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