Gas site, excavation access to valve for assessment

Client Name: National Grid Gas
Project Type: Vacuum Excavation

The project brief was to excavate and expose a large bore high pressure gas main so the site-based engineers could undertake essential maintenance works. The valve was located at a depth of 4m and required an overall excavation size of 6m x 4m x 4m deep.

During the dig, bespoke shoring was constructed as per our civil engineers designs as per Temporary Works Regulations. Due to the high risk of possible damage to the pipe, no mechanical excavators could be used. The vacuum excavator worked exceptionally well in these circumstances, safely removing over 140m³ of bulked spoil and exposing a number of both small bore gas lines and a number or LV services. Without this method of dig, the excavation would have been a long drawn out process by hand alone with increased hazards associated with working within confined spaces and manual handling. Ducron were audited during the excavation phase and were praised for a safe method and works and control measures.