Ground engineering projects rarely fail because of one problem alone. In most tunnels, shafts, mines and buried structures, water ingress, hidden voids, unstable ground, weak support zones and difficult access conditions often appear together. That is why repair and stabilization work needs more than a single grout or a single repair method.

ZRETE’s Ground Engineering Solutions are built around practical underground jobsite needs. The system covers PU injection grouting for active leaks and void filling, high-water and super-high-water backfill grouts for mine filling, inorganic borehole sealing grouts for gas drainage and safety drilling, and inorganic reinforcement grouts for fractured rock and advance support.

This solution family is suitable for tunnel leak sealing, underground void filling, slab undersealing, mine backfill, goaf filling, borehole sealing, deep-hole pre-grouting, broken rock stabilization and coal slurry treatment. The goal is simple: choose the right material route by water condition, ground condition, target strength, pumping requirement and long-term service demand.

Solution categories

• PU Injection Grouting Solutions for leak sealing, void filling and underground stabilization

• Mine Backfill, Borehole Sealing & Advance Support Solutions for underground filling, sealing and reinforcement

Typical project conditions

• Active water leakage in tunnels, basements and shafts

• Voids behind lining, retaining walls or slabs

• Mine goaf filling and fire-prevention filling

• Gas drainage borehole sealing and anti-outburst drilling support

• Broken rock, fault zones and advance support reinforcement

• Coal slurry dewatering, solidification and reuse