Underwater Maintenance
Underwater Concreting

Underwater concreting is widely used in today’s marine construction industry in the stabilisation of various foreshores and harbours among other erosions areas in and around the tidal zones. Typically this is achieved by filling with a concrete grout mixture into foreshore stabilisation mattresses (grout mattresses) of various sizes which ultimately act as a concrete blanket in and around tidal zones and to the harbour bed floor which might be exposed to propeller wash from tugs and ships thus preventing erosion and embankment slippage.

 

A well placed concrete pour carried out underwater can be equivalent to the same pour carried out topside in strength and longevity.

 

Examples of underwater concreting uses are:

  • Structure foundations and slabs

  • Embankment stabilization

  • Pier and Pylon footings and supplement

  • Pipeline and cable encasements

Underwater High Pressure Water Blasting

Underwater high pressure water blasting is a very effective means of cleaning and removing fouling or scale from underwater structures.

 

Examples of structures commonly cleaned using water blasting are:

  • Pipelines & intakes

  • Commercial vessels

  • Bridge piles & piers (road and rail)

  • Dam outlet screens

  • Stop log guides and rails

  • Wharf structures

Diver Operated Dredging

Deep Dive Co. Ltd is capable of providing a rapid response and turnkey operation for all types of diver operated airlifting and dredging projects.

 

We owns numerous specialty dredging equipment, suction and discharge hoses, and related equipment. Deep Dive Est. has performed numerous dredging operation projects throughout the Saudi Arabia.

Underwater Cutting

Deep Dive Co. Ltd supply underwater cutting for the marine civil construction industry, programmed maintenance, emergency repair and demolition of various water structures such as piles, bridges, wharves, jetties, pontoons or piers, and to the commercial shipping industry.

 

Our experience and equipment is vast in the marine service industry and mutable cutting, enabling our systems to be deployed efficiently and promptly ensuring our clients have the least down time possible.

Underwater Welding

Underwater welding is a safe, reliable and cost effective technique for temporary, repair and construction. Our commercial divers are experienced underwater welders. We diligently test new materials and methods in our own underwater simulated environment training tank in order to be at the forefront of the latest technology.

 

Underwater welding:

  • Bridge and piers

  • Ships hulls and coffer dam installation

  • Anode replacements

  • Power stations

  • Hydro stations

  • Water storage reservoirs

  • Pipelines

  • Numerous other underwater structures

Underwater Drilling

We have the capability to drill into various materials such as metal, rock, reinforced concrete and timber. All of these various materials require different drilling apparatus and techniques. Fine drilling, large diameter and deep drill lengths are also our specialities.

 

Underwater drilling is carried out for many purposes including:

  • Structural investigation

  • Fixing and fastening

  • Chemical anchor installation

  • Crack stop drilling

  • Anode installation

  • Rope guard replacements

  • Thread tappingSea chest repairs

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