Isolation and Drainage of Deep Building Excavations

Deep excavations in construction projects require effective waterproofing and drainage systems to prevent groundwater intrusion, soil settlement, and structural damage. The use of HDPE and LLDPE geomembranes provides a modern and efficient solution that has been proven in international projects.

Benefits of Using Geomembranes in Building Excavations

  • Water Infiltration Control and Reduced Soil Settlement Risk
  • High Durability and Chemical Resistance, Suitable for Various Soil and Groundwater Conditions
  • Fast and Standardized Installation According to International ASTM/GRI Methods
  • Reduction of Long-Term Maintenance and Repair Costs

Geomembrane Installation Process in Deep Excavations

Substrate Preparation

  • Clearing the excavation of sharp objects and rocks
  • Leveling and stabilizing the soil using protective geotextile

Geomembrane Sheet Supply and Deployment

  • Selecting sheets with appropriate thickness (0.75–1.5 mm or as per project requirements)
  • Carefully laying panels with proper overlaps

Panel Seaming and Welding

  • Using Hot Wedge Welding or Extrusion Welding for secure seams
  • Conducting non-destructive seam quality tests such as Vacuum Test or Air Pressure Test

Edge Anchoring and Protection

  • Creating an anchor trench to secure edges
  • Protecting sheets with rocks or mortar at soil contact points

Installation of Drainage and Water Collection System

  • Installing drainage pipes and water exit paths to reduce hydrostatic pressure
  • Connecting to groundwater collection systems and dewatering pumps

Quality Control and Final Handover

  • Inspecting and recording seam and overall quality tests
  • Providing operation and maintenance training to ensure long-term performance
خرید ژئوممبران pvc در تهران

Isolation and Drainage of Deep Building Excavations

Why Khanjani Polymer Industries?

  • Providing HDPE and LLDPE geomembranes compliant with international standards
  • Technical consulting and customized design for each project
  • Step-by-step execution including substrate preparation, installation, welding, testing, and project handover
  • After-sales services and periodic inspections to ensure performance and longevity

Contact Polymer Industry Consultants

To receive free expert advice, information about prices, and to place an order, you can contact our experts at Khanjani Polymer Industries.