MINE & VOID FILLING

Process Overview

Mine and void filling involves the engineered placement of cementitious or granular materials into subsurface cavities to stabilise the ground, prevent collapse, and improve overall bearing capacity. This technique is critical in areas where historical mining, uncontrolled fill, or geological dissolution features create subsurface hazards.

It is widely used to manage geotechnical risk and restore ground integrity beneath infrastructure, ensuring long-term stability and safe development.

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DGSA Techniques & Innovations for Void Filling

Compaction Grouting

Low-Density Cellular Concrete (LDCC)

Controlled Density Fill

Permeation & Consolidation Grouting

Bulk Fill Placement

Advanced Investigation Tools

Mine and void filling is essential for stabilising hazardous or unpredictable ground conditions. DGSA’s integrated suite of grouting and filling systems, combined with robust QA/QC processes, ensures safe, effective, and permanent stabilisation.

DGSA delivers value-driven solutions by integrating void filling with dynamic compaction, soil mixing, compaction grouting, and other ground improvement methods to provide tailored geotechnical outcomes for complex projects.

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