Keeping the underground dry: TECHNONICOL solutions and technical support for metro and tunnel projects

A metro line or a road or rail tunnel is among the most demanding underground structures ever built. Once in operation, it works for decades in constant contact with groundwater, under pressure, with very limited access for repairs. That is why waterproofing for underground transport is chosen for predictable durability and repairability, and why the supplier’s role goes beyond delivering a roll of material.

What makes underground construction so demanding
- Hydrostatic pressure. Water presses on the structure from all sides, and waterproofing must perform under that load for decades.
- Limited access. Once a tunnel or station is in service, repairs are costly and disruptive, so the system must be dependable from day one.
- Many parties, one result. Engineers, designers, contractors and suppliers work on every stage, and materials are tested before they reach the site.

TECHNONICOL solutions for tunnels, metro and underground structures
TECHNONICOL offers a portfolio built around the needs of transport and underground infrastructure:
- PVC synthetic membranes for tunnels - LOGICBASE V-SL - a PVC membrane with a signal layer that makes any damage easy to spot and repair before the lining is cast
- Pre-applied HDPE membranes (such as ULTRABASE PA) that bond to poured concrete, forming a continuous barrier for foundations and underground structures
- Polymer-bitumen membranes for roads, railways, bridges and underground structures
- Polymer coatings and cementitious waterproofing for details, junctions and repair work
- XPS and related products where insulation is required

The same portfolio covers waterproofing for roads, railways and bridges, as well as foundations and underground structures, roofs and facades, and indoor and thermal insulation, so one partner can support a project from the tunnel to the station building above it.

More than materials: technical support at every stage
As infrastructure projects grow, details decide the result. TECHNONICOL’s system partner concept covers technical and design requirements and supports the project at every stage.

Our technical support services include:
- Development of construction solutions tailored to specific projects
- Design, drawings and technical calculations based on project requirements
- Support at the tender stage: technical specifications and comparative calculations
- On-site supervision
- Training for contractors
- Consultations and advice

It is never too early to involve technical specialists in design or construction, and early involvement is where this support makes the biggest difference.

Why TECHNONICOL for infrastructure projects
Knowledge:
technical support throughout the project lifecycle, solutions tailored to operating conditions, in-house R&D and laboratory testing.
Experience:
a proven track record on high-requirement projects (tunnels, airports, nuclear power plants), with long-term performance confirmed by years of operation.
Craftsmanship:
own manufacturing sites, quality control from production to installation, and stable supply from standard orders to the largest projects, backed by logistics.

TECHNONICOL materials and systems are also approved or specified by leading Indian authorities and organisations in infrastructure, including NCRTC, DMRC, NHAI, RVNL, IRCON, RITES and L&T.

Let’s plan your project together
Working on a metro, tunnel or underground structure? Involve TECHNONICOL’s specialists early. Contact the technical support team at tech.support@technonicol.in, or message us on WhatsApp at +91 74497 44950.

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