Specialised dewatering and wastewater treatment for vertical shaft sinking and underground station construction, handling high-head pumping and strict urban discharge requirements.
Specialised water treatment for metro & tunnelling. TBM slurry, dewatering and construction discharge compliance.
Groundwater treatment for tunnel dewatering operations. Remove suspended solids, adjust pH and manage contaminated water.
Recycle tunnelling wastewater for TBM slurry makeup, dust suppression and concrete batching.
Sediment and suspended solids removal for tunnel construction wastewater.
How we treat wastewater from vertical shafts and metro stations — drainage, cleaning and operational water. It is here because shaft and station water mixes construction and operational sources, each with its own consent. Shaft-bottom sumps collect groundwater, construction water and cleaning water that must be lifted, treated and discharged or reused. We design the collection, pumping and treatment as one system, sized for the deepest sump and the highest inflow, so each source is held within its own consent regardless of the construction activity above.
Specialised Solutions for Shaft & Station Construction
Vertical shaft sinking and underground station construction present unique water management challenges. Deep excavations generate significant groundwater inflows that must be controlled for safe working conditions. Additionally, construction activities produce wastewater requiring treatment before discharge in sensitive urban environments. Our integrated dewatering and treatment systems address both challenges efficiently.
Submersible pumps capable of handling heads up to 200+ metres for deep shaft construction and station excavation.
Advanced treatment ensuring discharge meets strict urban standards for TSS, pH, oil/grease, and other parameters.
Treatment of equipment wash water, concrete curing water, and general construction wastewater.
Real-time water quality monitoring with automated reporting for regulatory compliance documentation.
Shaft & Station Projects We Support
Vertical shafts for TBM launch and retrieval, ventilation, and emergency egress with high-head dewatering requirements.
Underground passenger stations with extensive excavation dewatering and operational wastewater management.
Multi-line station complexes with large-scale dewatering and long-term water management needs.
Pneumatic and open caisson construction with specialised dewatering and compressed air management.
Barrette and diaphragm wall construction for station structural elements with slurry treatment.
Smaller diameter shafts for cable tunnels, sewer connections, and utility infrastructure.
Integrated Dewatering & Treatment
High-head submersible pumps extract groundwater from shaft sumps and wellpoints.
pH adjustment and final polishing for compliant discharge or reuse.
Products for Shaft & Station Construction
Coarse screens for debris removal and protection of downstream equipment.
Hydrocyclones and sand traps for sand and grit removal from dewatering water.
High-rate inclined plate settlers for suspended solids removal in compact footprints.
Dissolved air flotation for oil/grease removal from equipment wash water.
Pressure and multimedia filters for final polishing to meet discharge standards.
Pre-assembled treatment systems for rapid deployment on congested sites.
Why Choose Reynolds & Bauhm
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Our expertise spans multiple industries with sector-specific water treatment solutions.