Tunnel construction in civil works

Q: What types of civil works projects does EUROHINCA carry out?

Eurohinca executes civil works related to subway and trenchless projects: excavations, earthworks, attack/reception wells, concrete structures, dykes and accesses, and water control solutions (lowering of the water table), adapting the method to geotechnics, environment and client requirements.

Q: What technologies do you use for the execution of wells?

The well solution is selected according to terrain, depth, loads and water table. Depending on the case, systems such as diaphragm walls, piles or sheet piles can be used, together with shoring, pumping/draining and auxiliary means to ensure stability and safety.

Q: How do you ensure the stability of the concrete structures you build?

Stability is ensured by design and structural verification according to loads and geotechnical conditions, quality control of materials and execution, and site supervision to meet specifications, tolerances and safety requirements.

Q: What is water table lowering and why is it important in civil works?

Lowering the water table consists of reducing the groundwater in an excavation area to work in safe and stable conditions. It is key to avoid flooding, siphoning and loss of ground stability, especially in deep wells and excavations.

Q: How do you handle earthworks in difficult terrain?

We start with a geotechnical and risk analysis, defining slopes, supports, excavation phases, drainage and logistics. In unstable terrain, methods and machinery are adjusted to minimize deformations, improve safety and keep the work within tolerances.

Q: What experience does EUROHINCA have in the execution of concrete structures?

Eurohinca executes concrete structures associated with subway works (shafts, slabs, support elements and auxiliary structures), integrating quality control, safety and coordination with the execution of tunnels and trenchless technologies.

Eurohinca (Europea de Hincas Teledirigidas, S.A.), Trenchless specialist since 1996 - 14 TBMs and >120 km executed.

We run civil work associated with crossings and tunnels: platforms, shafts, thrust/receiving chambers and galleries, integrated with microtunneling (MTBM), segment tunnel y vertical wells - precise routing, safety and ISO compliance.
See technical assistance and engineering y references.

Excavations and earthworks

In EUROHINCA we execute works of civil works specialized in subway environments, including excavations, earthworks and ground preparation for concrete structures or pile-driving systems.

Thanks to our high-performance machinery and in-house technical staff, We adapt each solution to the geology of the project, guaranteeing stability, safety and compliance with deadlines.

This type of performance is key in works such as gas pipeline tunnels o critical infrastructure crossings, where every meter executed must meet strict tolerances.

Execution of shafts and concrete structures in civil work

Our experience includes:

Vertical wells with drilling and shoring technologies.
Manholes and manholes with geometric precision.
Reinforced concrete structures to support hydraulic, electrical or industrial installations.

In many cases, these jobs are combined with solutions such as pipe ramming o closed shield type hydro-shield to extend nets without trenching.

All our actions follow the guidelines of the General Technical Specifications for Hydraulic Works of MITERD, applicable to public and private infrastructures in the national territory.

Associated civil works service specifications

The civil works required for the execution of trenchless technologies include the construction of structures, accesses and operational areas that make possible the correct implementation of microtunnels, pipe jacking, Direct Pipe, HDD or tunnel boring machines. This service is characterized by the following parameters and technical scopes:

• Types of structures executed: Attack and reception shafts, pits, work platforms, casing, auxiliary foundations, ramps, temporary access and loading and unloading areas for piping and equipment.

• Dimensions and geometry of the wells: Defined according to the construction method, the diameter of the pipe or TBM, the working depth and the logistics required for the slurry plant, pumps, electrical panels or cranes.

• Support and safety systems: Shoring, screens, sheet piles, prefabricated rings or other systems according to geotechnical, water table and urban or industrial environment conditions.

• Water table control and drainage: Temporary pumping, drainage networks, drywells or specific solutions to ensure stability and safety during excavation and equipment operation.

• Access, maneuverability and logistics: Design and execution of roads, esplanades and operational areas for the assembly of tunnel boring machines, pipe storage, transit of heavy machinery and location of auxiliary facilities.

• Integration with existing services: Coordination with sanitation, supply, energy, telecommunications or nearby infrastructure networks, guaranteeing protection and continuity of service during the work.

• Compatibility with trenchless methods: Configuration of civil works adapted to MTBM microtunnel, Direct Pipe, HDD or mechanized tunnels, ensuring the correct implementation of equipment and its operation within the foreseen parameters.

• Quality control and verification: Verification of elevations, verticality and geometry of shafts, review of support, platform bearing capacity tests and final validation according to project requirements.

What they think of us

Our clients value Eurohinca's experience in subway civil works, both in urban environments and in areas of difficult access, providing safe and sustainable solutions.

International Experience

Projects around the world

With a presence in more than 10 countries and more than 105 km of solutions implemented, Our civil works have included shafts, chambers, tunnels and structures for water, gas, energy or sanitation networks.

Explore other projects in our works performed.

Civil works: quick response

What is the civil work (in trenchless projects)?

The civil work groups the works necessary to execute and support an action: site preparation, implementation, accesses and auxiliary elements linked to the development of the project. In trenchless projects, it is usually linked to the method and the environment where the work is carried out. For application context, you can see infrastructure crossings.

When to use

Used when the project requires preliminary and auxiliary works to make the execution feasible (implementation, access, safety and environmental conditions), both in land-based actions and in specific environments. If the project is on the coast, it may be related to submerged applications.

Key data

Approximate location and objective of the project (what is to be executed or enabled).
Sketch or plan of the site and known conditions (access, occupation, restrictions).
Environmental restrictions (schedules, traffic, easements, existing services) if applicable.

Recommended information

Available site documentation (existing plans or background).
Holder/operator or management requirements (if applicable).
If the project is linked to a specific trenchless solution, it can provide context for the project. pipe ramming y microtunnel.

Request for information

Do you have a civil works project that requires excavation, shafts or concrete structures?

Tell us about the challenge and we will propose you an adapted solution with a technical basis and a realistic schedule.

Success stories and technical solutions in subway civil works

Read articles on complex construction, trenchless technologies and regulations applied in civil and industrial environments.
See more content

What excavation parameters are monitored during tunnel boring with a tunnel boring machine?

During tunnel boring with a tunnel boring machine, parameters are monitored to control the advance rate, face stability, accuracy, etc.

How are the logistics of pipelines, sludge and machinery organized on a trenchless construction site?

The logistics on a trenchless construction site is organized by defining the location of shafts, accesses, stockpiles, cranes, etc. upstream,

What permits usually condition a trenchless crossing under existing infrastructure?

A trenchless crossing under existing infrastructure may be conditioned by permits, authorizations or favorable reports from the owner of the existing infrastructure.

Frequently asked questions about civil works services

Our services cover the entire cycle of subway civil works: from excavation and earthworks to the execution of shafts, foundations and auxiliary structures. We apply technologies such as direct pipe o horizontal directional drilling according to the needs of the project.

See more answers in our section of frequent questions.

What types of civil works projects does EUROHINCA carry out?

EUROHINCA specializes in a wide variety of civil works projects, including excavations, earthworks, execution of shafts using various technologies (such as diaphragm walls, piles and sheet piling), construction of concrete structures, lowering of the water table, and the creation of dykes and accesses. We undertake both small and large scale projects, adapting to the specific needs of each client.

What technologies do you use for the execution of wells?

At EUROHINCA, we use various technologies for the execution of shafts, depending on the characteristics of the terrain and the needs of the project. These technologies include diaphragm walls, piles and sheet piles. Each method is selected and applied by our team of experts to ensure maximum efficiency and durability in the construction of the wells.

How do you ensure the stability of the concrete structures you build?

We guarantee the stability of concrete structures through meticulous design and the use of high quality materials. Our engineering team performs a thorough analysis of the terrain and projected loads to design foundations and structures that meet the most rigorous safety standards. In addition, we supervise every phase of construction to ensure that best practices and regulations are followed.

What is water table lowering and why is it important in civil works?

Lowering the water table is a technique used to reduce the groundwater level in a specific area, usually during excavation and construction. This technique is crucial to avoid problems such as flooding or soil instability that could compromise the safety of the construction site. At EUROHINCA, we employ advanced abatement methods to ensure that ground conditions are optimal for construction.

How do you handle earthworks in difficult terrain?

In challenging terrain, such as steep slopes or unstable soils, EUROHINCA uses specialized machinery and advanced earthmoving techniques to ensure ground stability. We conduct a detailed soil survey before beginning any work, and adjust our excavation and grading strategies to minimize risks and ensure that the ground is adequately prepared for construction.

What experience does EUROHINCA have in the execution of concrete structures?

EUROHINCA has extensive experience in the execution of concrete structures, ranging from foundations to complex industrial buildings. Our team of engineers and technicians is highly trained and uses the best construction practices and materials to ensure that each structure is durable, stable and meets project specifications. We have been involved in a variety of successful projects, which supports our ability to provide high quality civil engineering solutions.