...F D R YELL; VSEL © Thomas Telford and ICE 1996 ASSOCIATED BRITISH PORTS VSEL SUBMARINES NUCLEAR TRIDENT FACILITIES WORKS CIVIL ENGINEERING VANGUARD MODIFICATION SHIPYARDS PORTS LOADING MAINTENANCE SHIPBUILDING HALLS SHIPLIFTS NAVIGATION CHANNELS DOCKS...

.... On two TBMs the fi-ont screw bearings became contaminated and had to be changed, and it was found that the sealing system had to be modified to prevent contamination. The essence of the modification was the addition of water-flushed Chesterton seals and the replacement of stiff Walker seals by the more...

...J K BANYARD; R E COXON; T A JOHNSTON RESERVOIRS RECONSTRUCTION DAMS LANDSLIPS COMPLETION MODIFIED MODIFICATION CONTRACTS FAILURES PROJECTS SLIPS HYDROLOGY SPECIFICATIONS METHODS MEASUREMENT COSTS LIAISON CONTRACTORS CONSULTANTS ENGINEERS MONITORING IMPOUNDING PROGRESSIVE...