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BOC Immingham Dissolved Acetylene Project Environmental Statement: Vol. 2 Main Text
Vibration
11.65 It is anticipated that there will be negligible vibration impacts on local residential and commercial
properties taking into account the likely plant and typical activities associated with the
development and also the relatively large separation distances involved (i.e. 550 m to Poplar
Farm).
Impact Assessment
Construction
Noise
11.66 The construction of the facility is expected to take approximately nine months to complete.
Standard construction hours are expected to be from 0800 to 1600 hours Monday to Friday, with a
10% allowance for working from 0800 to 2000 hours Monday to Saturday.
11.67 Details of the plant and equipment that will be used during the construction period and their
relative phasing are not known at this stage. However estimates of plant equipment types,
numbers and the corresponding noise levels are provided in Table 11.7. It should be noted that, in
practice, there could be changes in the plant and equipment used due to variations in the
preferred construction methods adopted by the appointed Construction Contractor.
Table 11.7 Anticipated Plant and Associated Noise Levels
Plant Equipment Assumed
Number in
Use
BS 5228 Reference Noise level (dB)
LAeq,T at 10 m (per
unit)
Dozer 1 Table C.2 12 81
Dumper trucks 3 Table C.2 30 79
Digger 2 Table C.4 63 77
Towed roller 1 Table C.2 36 81
Tandem roller 1 Table C.2 37 79
Mini digger 1 Table C.4 67 74
Submersible pumps 2 Table C.2 45 65
Telehandler 1 Table C.2 35 71
Piling (Hammer Rig (4 t)) 2 Table C.3 2 87
6T Dumper 2 Table C.4 6 79
55T Crane 1 Table C.4 45 82
Concrete pumps 2 Table C.4 26 75
Total noise for all items of plant operating together 93
5100935.404 Environmental Statement August 2011 199