RSRL Winfrith

Tank Removal

Client: Research Sites Restoration Ltd (RSRL)
Project: Tank Removal
Location: RSRL Winfrith, Building A60, Winfrith
Brief Description

Cleaning, Degassing of 2no Gas Oil Tanks. Including Draining, Flushing through of Associated Pipelines & the Deconstruction Onsite. Undertaking works such as these on such a highly sensitive site required stringent health and safety controls and monitoring from our personnel and management team.

Scope of Works

Following a thorough consultation period with the client team whereby a full feasibility study was compiled to explore various options for cleaning and removal the preferred method was agreed. Operating to Health and Safety Hierarchy One it was agreed that working at height would not be permitted nor confined space entry and due to the method adopted stringent HAVS controls were monitored closely throughout.

The works involved the cleaning and subsequent de-construction of a 9,000 gallon split compartment diesel tank and a 3,000 gallon kerosene tank. The sequence of works were as follows:

  • Operatives set up a gas monitor to continually monitor the LEL levels around the tank and take readings and record every 15 mins.
  • MEWPS were then used to allow access to the man lids in order that they may be removed to allow ventilation to the vessel.
  • Using reciprocating saws so as to allow sufficient HAVS controls , operatives then cold cut access to the vessel (approx. 1200mm x1200mm) through both the bund and inner tank.
  • Utilising the tanker jetter, operatives cleaned the vessel from the cut openings working from the outside.
  • Upon completion of the cleaning process a gas free certificate was issued to allow the subsequent de-construction.
  • With the tanks cleaned and degassed in accordance with the necessary regulations the vessels were de-constructed by KpH operatives at long reach utilising a 22T rubber tracked machine fitted with a shear attachment.

With all works heras fenced and marshalled at all times the vessel was deconstructed using the shear attachment and loaded into the citied skip.