Hydroshield Tunnel Boring Machine
Efficiency of hydroshield TBMs
The hydroshield tunnel boring machines son equipos avanzados diseñados para excavar en terrenos con alto nivel freático, suelos granulares o inestables. Su sistema de circulación de lodos bentoníticos mantiene la presión en el frente de excavación, evitando infiltraciones de agua y garantizando la estabilidad del túnel.
Esta tecnología resulta especialmente útil en proyectos de submarine emissaries, cruces de áreas marinas protegidas y sea water catchments, donde las condiciones del terreno requieren máxima seguridad.
Advantages of using a closed shield tunnel for excavations
The hydro shield ofrece múltiples ventajas frente a otras tecnologías de excavación. Su capacidad de controlar la presión en suelos arenosos, gravas o suelos saturados lo convierte en la elección ideal para obras con riesgo de filtraciones. Además, permite excavar con precisión minimizando los impactos en superficie.
Este método se aplica en proyectos de obras civiles complejas, urban supply systems y desagües de presas.
En comparación, la EPB tunnel boring machine se adapta mejor a suelos arcillosos y de baja permeabilidad, mientras que el hidroescudo es idóneo para entornos con presencia de agua.
Esta tecnología está regulada en la Norma EN 12110:2014 de CEN sobre tuneladoras de presión de lodos, referencia europea en materia de seguridad y operación de hidroescudos.
What they think of us
Projects around the world
En Eurohinca hemos ejecutado más de 100 km de túneles con hidroescudo en distintos continentes. Esta técnica ha sido decisiva en proyectos donde la seguridad y el respeto medioambiental son prioritarios, como cruces de ríos y cursos de agua o obras de drenaje urbano.
Consulta más ejemplos en nuestra sección de obras ejecutadas.
Request for information
¿Tu proyecto debe atravesar terrenos con alto nivel freático o riesgo de filtraciones?
Contacta con nosotros y te asesoraremos sobre la mejor solución con hidroescudo.
News that may interest you
Descubre más sobre el uso de hidroescudos en proyectos reales, innovaciones en equipos de presión de lodos y casos de éxito en nuestra sección de noticias.
Management of pressures under high groundwater with hydroshields
Working at more than 5 bar of groundwater pressure requires the use of a closed shield of the hydroshield type.
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In subway construction, the evolution of techniques and machinery is essential to carry out projects with quality, safety
Frequently asked questions about hydroshield TBMs
Resolvemos las dudas más comunes sobre las tuneladoras hidroescudo: su funcionamiento, ventajas y diferencias con otros tipos de escudos cerrados. Para más información, visita nuestra sección de preguntas frecuentes.
What is a hydroshield TBM and how does it work?
A hydroshield tunnel boring machine is a machine designed to excavate tunnels using a tunnel excavation system. wet debris handling. It works by balancing the pressure at the tunnel face with the use of bentonite slurry or water. These slurries help maintain tunnel stability by transporting crushed muck from the excavation chamber to the surface separation equipment, minimizing the risk of subsidence.
What are the benefits of using a hydroscute tunnel boring machine?
The hydroshield tunnel boring machines offer multiple benefits, such as the ability to excavate in soft or mixed soils with high water content. The system of wet conduction helps maintain excavation face pressure, which prevents collapse and subsidence. In addition, this method reduces environmental impact by efficiently handling spoil and maintaining tunnel stability.
How is muck handled in a hydroshield TBM?
In a hydroshield tunnel boring machineIn the crushing chamber, the spoil is handled by a pumping system using bentonite slurry. The crushed spoil is mixed with the sludge in the crushing chamber and transported by pipeline to the surface separation equipment. This process ensures continuous and efficient transport of the excavated material, facilitating the operation and management of the spoil.
What types of terrain are ideal for the Hydroscudo TBM?
The hydroshield tunnel boring machines are especially suitable for difficult terrains such as soft, mixed soils or areas with high water presence. The technology of wet debris handling allows excavation in conditions where other methods may not be effective, providing an efficient and safe solution for complex excavations.
How is tunnel stability ensured during excavation with a hydroshield?
The tunnel stability during excavation with a hydro-shield is maintained by the pressure of bentonite slurries at the tunnel face. These slurries balance ground forces and help support the tunnel structure, preventing subsidence and displacement. The closed shield technology also contributes to a controlled and safe excavation.
What maintenance does a hydroshield TBM require to operate properly?
A hydroshield tunnel boring machine requires regular maintenance to ensure efficiency and longevity. This includes inspecting and maintaining the pumping systems, checking the mechanical components of the shield and monitoring the bentonite sludge. It is also important to clean and maintain the debris conveyance system to avoid blockages and ensure continuous operation.
Solve your doubts in our section of frequent questions.
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