MudMan - Microtunnelling Separation Technician

Location: Liverpool/Chester/Wales

Contract: Long Term Project.

Hours: Full-time

Start date: ASAP

The Joseph Gallagher Group is a family owned business that delivers expertise whilst putting client satisfaction at the core of the business. Built on a personal reputation for honesty and quality, we understand the actions we take affect the communities and environments we operate in. To Joseph Gallagher, this means acting responsibly in all that we do to add value, not only in our commercial activities, but beyond, to the local communities, our environments, our people and the quality of our work.

As the Mud Man, you will be required to:

• Separation Plant Operation and Control
  • Operating Separation Plant:
    Operating and monitoring the surface separation plant, which includes shaker screens, hydro-cyclones, and, frequently, a decanting centrifuge to separate solids from the slurry.
  • Optimising Slurry Quality:
    Managing the density, viscosity, and composition of the slurry to ensure it is suitable for the geology being bored.
  • Controlling Separation Processes:
    Adjusting the slurry feed rate and managing the removal of sub-63μm particles using a centrifuge to minimise water content in the waste.
• Slurry Circuit Management
  • Managing the Slurry System:
    Monitoring the closed-loop slurry system, including the feeding of clean slurry to the cutter head and the return of slurry loaded with excavated material.
  • Dosing Flocculants:
    Managing the addition of chemicals (flocculants) to the separation process to ensure efficient separation of fines.
  • Pressure Monitoring:
    Assisting in monitoring the slurry pressure to prevent ground collapse or over-excavation, ensuring it balances with the geology.
• Maintenance and Inspection
  • Equipment Maintenance:
    Conducting daily maintenance and checks on the separation plant, slurry pumps, and tanks.
  • Troubleshooting:
    Identifying issues in the slurry circuit, such as blockages or inefficient separation, and taking corrective action.
  • Waste Management:
    Managing the disposal of solid waste and ensuring the recycled liquid is within specification for reuse.

• Be familiar with centrifuges
• Experience in Micro Tunnelling
• Experience setting up separation

At the Joseph Gallagher Group, we’re promoting a culture change within the industry and demonstrating initiatives to dramatically improve Health, Safety and Wellbeing. In 2014, we launched our award‑winning cultural safety programme (LIFE) which is deeply embedded into the company’s DNA and core values.

The Joseph Gallagher Group are committed to providing equal opportunities in employment. All individuals will be treated in a fair and equal manner and in accordance with the law regardless of gender, marital status, race, religion, colour, age, disability or sexual orientation.

We want to make our recruitment processes accessible to everyone, so if there is any way that we can support you to enable you to be the best you can, please contact the HR team at . are one of the UK's leading civil engineering and tunnelling contractors, offering a wide range of construction and specialist services.