Dive Operations |
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Underwater Survey |
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| Types of Inspections: - Verbal Report - Photographic Report - CCTV or Video Types of Inspections: - General – no cleaning, quick - Close – pre-cleaned, slow and methodical |
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Marine Civil Construction |
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| - Jetty Construction - Air Lifting - Sand Spreading - Underwater Concrete Installation - Dredging - Concrete piling - Underwater cutting and welding - Structure repairs, etc. |
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Ship Hasbandry |
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| - Anode replacement - Propeller maintenance - Sea intake repair, etc. |
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Underwater Welding & Cutting |
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| List of types of work areas: - Pipelines and Structures - Pile and Non-Ferous Metal Cutting |
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Confined Space Entry & Dredging |
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| Usually necessary when confined water holding spaces need to be surveyed, repaired or cleared from silt. Examples of confined spaces: Water reservoirs and small dams Dangerous / toxic chemical sumps Waste water works |
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In Water Dam wall & Sluice Gate Repairs |
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Diving operations conducted at dams in order to repair or survey dam
wall structures, sluices, pumps and sluice gates
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Salvaging |
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The recovery of sunken vehicles, ships, aeroplanes, etc. utilising underwater search methods and lifting devices such as air lift bags and cranes
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Harbour Construction & Clearing |
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The construction, cleaning, development, and repair of mooring spaces for various types of water transport.
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Air Jetting |
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Removing underwater obstacles / marine growth utilising a high pressure burst of air targeted onto the area of concern
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Pumping & Dredging |
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Removal of silt and nibble via various types of pumps and hoses - Usually done to clear an obstruction in the water flow caused by the silt, or to reach an underwater dive work site obstructed by the silt and rubble - Is also used in the underwater mining industry when mining for precious stones and minerals. |
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