Influences under Salamanca city

Eurohinca has carried out a project of in the center of SalamancaThe project was completed with the installation of a sewage collector in one of the busiest and most valuable areas of the city's heritage. Thanks to the technology DN2000 HydroshieldThe impact on the surface was minimized, protecting urban infrastructure and nearby historic buildings.

Location and context of the project

The project was developed in the urban center of SalamancaThe excavation was carried out in a city with narrow streets and a high density of both vehicular and pedestrian traffic. The intervention was carried out in a highly regulated environment due to the proximity of monuments and buildings of great architectural value, which required exhaustive control of the excavation and precise planning to avoid alterations to the surface.

Characteristics of the work

Construction method: Hydroshield DN2000 remote-controlled thruster
Total length of the tunnel: 2 drives of 130 meters each
Type of soil: Combination of clays, sands and presence of rocks.
Environment: Heavy urban traffic and proximity to historic structures
Affected infrastructure: Crossing under key streets in downtown Salamanca

Technical challenges

The main challenge of the project was the implementation of the in a dense urban environmentThe excavation of the site was to ensure that the site would be safe, with buildings of great heritage value and networks of essential services. The excavation was to guarantee the minimal impact on the surfaceThe project is designed to avoid differential settlements or vibrations that could compromise the stability of nearby buildings.

Another challenge was the coordination with municipal authoritiesThe traffic in the area had to be kept operational and execution times had to be minimized to reduce the impact on commercial and residential activity in the area.

Solutions implemented

To meet the challenges of the project, Eurohinca implemented advanced strategies:
✔️ Use of Hydroshield DN2000 tunnel boring machineThe new system, which allows precise excavation without disturbing the ground.
✔️ Real-time geotechnical monitoring and control systemsThe soil stability is guaranteed throughout the excavation.
✔️ Planning and coordination with local authoritiesThe system is designed to minimize disruptions to traffic and urban activity.
✔️ Trenchless pile-driving methodsavoiding open excavations and protecting the integrity of nearby buildings.

Results and benefits

The project was successfully completed on schedule, achieving the installation of the collector without affecting the city's structure. Thanks to the use of remote-controlled pile-driving technology, Salamanca's historic buildings have been preserved.The trenchless execution of the project allowed for the maintenance of traffic flow and normality in urban life. In addition, the trenchless execution allowed to maintain traffic flow and normal urban life.

This project demonstrates how the remote-controlled ramming is an efficient and safe solution for the installation of subway infrastructures in complex urban environments, allowing the development of new sewerage networks without affecting the historical heritage or the city's operations.

References of executed works

In Eurohinca we are specialists in the execution of tunnels for pipelines with tunnel boring machines. Since its foundation in 1996 Eurohinca has executed different types of works:

International Experience