Obras de drenaje sin zanja: colectores y pasos bajo infraestructuras

Especificaciones técnicas del servicio en obras de drenaje

Urban, industrial, and infrastructure drainage projects require precise, durable construction solutions with minimal surface impact. Trenchless technologies allow for the installation of collectors, deep drains, and underground pipelines with geometric control and full hydraulic functionality. This service is defined by the following technical parameters:

• Main applications: Deep drainage systems, relief collectors, pipelines under roads or industrial areas, longitudinal drainage systems on roads, underpasses beneath infrastructure, capacity expansion of existing networks, and connections between drainage wells.

• Construction methods used: Remote-controlled microtunneling for non-accessible sewers, pipe jacking when depth or access requires it, and HDD for specific routes where gentle curves or limited access are required.

• Diameters and materials: Pipes made of concrete, vitrified clay, steel, or HDPE, depending on the required hydraulic capacity, structural strength, and the regulations of the municipality or managing authority. Diameters are determined based on design flow rates and the slope required for gravity flow.

• Soil conditions and water table: Systems compatible with cohesive, mixed, and stabilized granular soils. In areas with high groundwater levels, closed shields (EPB or slurry) are used to maintain face stability and prevent soil loss.

• Slope Control and Hydraulic Capacity: Drainage systems require specific slopes to ensure efficient water flow without pooling or reverse slopes. Laser or gyroscopic guidance ensures strict tolerances for elevation and alignment.

• Lengths and geometry: Short and medium-length sections in urban areas, crossings under roads or industrial platforms, and longer runs in main drainage channels. The pipeline can be laid in a straight line or with gentle curves when the method allows.

• Civil works requirements: Manholes and receiving chambers adapted to the diameter of the drainage system, work platforms, access points, collection areas, and a sludge treatment plant. The project is designed to minimize disruption to traffic and urban activities.

• Integration with existing networks: Connection to existing drainage systems, adherence to manhole elevations, coordination with underground utilities (water, gas, electricity, telecommunications), and protection of sensitive infrastructure.

• Quality Control and Final Inspection: CCTV inspection, leak tests, geometric checks of alignment and slope, recording of excavation parameters, monitoring of earth pressure and excavated volume, and delivery of as-built documentation.