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1.
PRELIMINARY
TECHNICAL MEMORANDUM ON NOISE FROM
PERCUSSIVE PILING
1.1 Citation and Commencement
This Technical Memorandum is issued pursuant to Section 9 of the Noise
Control Ordinance and may be cited as the Technical Memorandum on Noise
from Percussive Piling. This Technical Memorandum shall come into
effect on a date as specified in the Gazette.
1.2 Application and Scope
This Technical Memorandum details the procedures that should be adopted
by the Authority for determining (on the basis of the likely noise
impact) whether or not constraints on working hours should be imposed
for the carrying out of percussive piling between the hours of 0700 and
1900 on any day not being a general holiday, for the issuing of Construction Noise Permits for percussive piling pursuant to Section 8
of the Ordinance and for determining whether or not any Construction Noise Permit for percussive piling is being complied with.
1.3 Interpretation
In this Technical Memorandum, unless the context otherwise requires, the
following definitions apply :-
"Authority" has the same meaning as in the Ordinance;
"Construction Noise Permit" means a construction noise permit issued
pursuant to Section 8 of the Ordinance;
a
"diesel hammer" means a device which imparts a percussive force to
pile by means of the downward motion of a ram which causes the
compression and ignition of a charge of diesel fuel;