Calculations, design and diagnostics for HDD, microtunneling and tunneling
DD Engineering is a company specialised in civil engineering with an advanced focus on trenchless technologies, providing complete solutions for the construction of underground infrastructure without open-cut excavation.

We adopt a multidisciplinary approach combining design, technical surveys, site monitoring and executive assistance, providing complete support to contractors, designers and public authorities throughout the entire project lifecycle.
Thanks to our team’s expertise and the use of cutting-edge technologies, we are able to handle even the most complex situations, reducing time, costs and environmental impact.
| +100 Completed projects |
| UNI EN / API Applied standards |
| FEM Analysis and modelling |
Innovative solutions for design, analysis and monitoring
From geotechnical analysis to executive design, through to field diagnostics.

HDD & Trenchless
We provide a complete service for trenchless works, from the preliminary phase to final delivery.

Geotechnical Calculations
Earth pressures, resistances, stability analyses and settlements for excavations

Surveys and Investigations
We carry out high-precision technical surveys, essential for informed and context-integrated design.

Drilling Fluid Laboratory
DD Engineering has a fully equipped laboratory for the control and characterisation of drilling fluids, essential for the success of trenchless works.

Ground Penetrating Radar
Subsurface diagnostics with the GPR system and ferromagnetic analysis

FEM Analysis
FEM component modelling and design for static and dynamic analysis

Working Parameter Estimates
We offer various models for calculating working torques and pull/push parameter estimates for pipelines

Forces on Pipelines
structural calculations and verification of pipelines to ensure compliance with current standards
Mobile Laboratory for Drilling Fluid Analysis
The DD Engineering mobile laboratory is equipped with a rheometer for complete rheological characterisation of the slurry, an API filter press for measuring fluid loss and cake thickness, and dedicated instrumentation for measuring the main physico-chemical parameters. All measurements are carried out according to standardised API RP 13B-1 and API RP 13B-2 procedures, guaranteeing comparable and documented results for the project.



Innovative solutions for design, analysis and monitoring
Explore our full range of services, designed to guarantee quality and satisfaction.
Design and Works Management for Trenchless Works
We offer a complete service for trenchless works, from the preliminary phase to final delivery.
Topographic Surveys and Geotechnical Investigations
We carry out high-precision technical surveys, essential for informed and context-integrated design.
Advanced Drilling Fluid Monitoring Laboratory
DD Engineering has a fully equipped laboratory for the control and characterisation of drilling fluids, essential for the success of trenchless works.
Bespoke trenchless engineering solutions
Discover the advantages of trenchless technologies for your project.

Geotechnical Analysis
We carry out detailed soil studies to guarantee safe crossings.

Structural Analysis
We supervise every phase of the project for impeccable results.
Executive Design
We offer detailed technical plans for every design requirement.

Technology Consulting
We guide you in the choice of innovative materials and technologies.
Trenchless technologies without limits
Request information in just a few steps and discover bespoke solutions for your needs.

The expertise and attention to detail of DD Engineering exceeded every expectation, making the project a true success.
Mohamed DAba
Why Choose DD Engineering
Proven expertise
Over 15 years of experience in trenchless technologies applied to complex projects in urban and industrial environments.
Cutting-edge technology
We use state-of-the-art equipment and innovative methodologies to ensure accuracy and reliability on every project.
In-house laboratory
Our dedicated drilling fluid laboratory allows us to optimise every operation in real time with field data.
Minimal environmental impact
Trenchless technologies minimise disruption to the urban fabric and surrounding environment, reducing emissions, dust and construction time.
Completed projects
Of experience
Of infrastructure built
Satisfied clients
