Product Overview:

Tunnel composite geomembrane is an advanced waterproofing solution specifically developed for tunnels and underground structures. It combines a geomembrane layer with geotextiles, delivering exceptional seepage control, strength, and adaptability for challenging construction environments.

Product Features:

1. Exceptional Waterproofing: Effectively prevents water leakage, ensuring tunnel durability.
2. High Mechanical Strength: Resistant to punctures, tears, and external pressures.
3. Chemical and UV Resistance: Maintains stability in aggressive chemical and ultraviolet exposure environments.
4. Flexible and Easy to Install: Suitable for complex tunnel geometries and curved surfaces.
5. Eco-Friendly Materials: Safe for the environment, ensuring long-term performance.

Product Specifications:

• Material Composition: Multi-layer HDPE/PVC geomembrane with geotextile reinforcement.
• Thickness Options: 0.8mm to 3.0mm (customizable).
• Width: Up to 6 meters, ensuring fewer seams for better waterproofing.
• Roll Length: Typically 50-100 meters, adjustable based on project requirements.
• Tensile Strength: ≥ 20 MPa.
• Permeability Coefficient: ≤ 1×10⁻¹³ cm/s.

Application Areas:

1. Road and Railway Tunnels: Protects against water infiltration and structural degradation.
2. Subway Systems: Ensures dry and safe operations in underground transit networks.
3. Hydraulic Tunnels: Provides reliable waterproofing for water conveyance systems.
4. Underground Storage Areas: Prevents seepage in reservoirs and utility spaces.

Installation Recommendations:

1. Surface Preparation: Ensure the tunnel surface is clean, smooth, and free from debris or sharp objects.
2. Lining Process: Securely anchor the geomembrane using specialized fastening techniques.
3. Overlap Seaming: Maintain at least a 10-15cm overlap, sealed using thermal welding.
4. Drainage Integration: Install a drainage layer to facilitate water flow and enhance efficiency.
5. Inspection: Conduct rigorous testing for seam strength and leak prevention after installation.