| |
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|
|
| CONSTRUCTION OF PUMPING
STATIONS |
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| |
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| Foundation |
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| Excavation |
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| |
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| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Excavator (mini) |
BS C.3, item 108 |
2 |
97 |
100% |
100 |
|
|
|
| Hydraulic breaker, excavator mounted |
BS C8, item 13 |
1 |
110 |
100% |
110 |
|
|
|
| Lorry (mini) |
BS C.8, item 25 |
2 |
96 |
100% |
99 |
110.7 |
110.72 |
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| |
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| Formwork, reinforcement & fixing |
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| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Mobile crane (mini) |
BS C.7, item 118 |
2 |
99 |
100% |
102 |
102.5 |
|
|
| Bar bender and cutter (electric) |
CNP 021 |
2 |
90 |
100% |
93 |
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| |
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| Concreting |
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| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Lorry (mini) |
BS C.8, item 25 |
2 |
96 |
100% |
99 |
|
|
|
| Concrete mixer (electric) |
CNP 045 |
2 |
96 |
100% |
99 |
|
|
|
| Air Compressor |
BS C.7, item 24 |
2 |
95 |
100% |
98 |
|
|
|
| Vibratory poker, hand-held (electric) |
BS 5228, Table C.6, item 32 |
2 |
100 |
100% |
103 |
106.3 |
106.26 |
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| |
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|
| Backfilling |
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| |
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|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Compactor |
CNP 050 |
2 |
105 |
100.0% |
108 |
108.0 |
108.01 |
|
| |
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|
| Superstructural Works |
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| |
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| Formwork, reinforcement & fixing |
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| |
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Mobile crane (mini) |
BS C.7, item 118 |
2 |
99 |
100% |
102 |
102.5 |
|
|
| Bar bender and cutter (electric) |
CNP 021 |
2 |
90 |
100% |
93 |
|
| |
|
|
|
|
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|
|
| Concreting |
|
|
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| |
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Lorry (mini) |
BS C.8, item 25 |
2 |
96 |
100% |
99 |
|
|
|
| Concrete mixer (electric) |
CNP 045 |
2 |
96 |
100% |
99 |
|
|
|
| Air Compressor |
BS C.7, item 24 |
2 |
95 |
100% |
98 |
|
|
|
| Vibratory poker, hand-held (electric) |
BS 5228, Table C.6, item 32 |
2 |
100 |
100% |
103 |
106.3 |
106.26 |
|
| Note: |
|
|
|
|
|
|
| BS BS5228 (1997) Part 1 Noise and Vibration
Control on Construction and open sites |
|
|
|
| Appendix
4.12 |
|
|
|
| Assumed Powered Mechanical Equipment for Sewer Construction
(With the Use of Quiet Equipment and Restriction on Number of Plant
Operating) |
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|
|
| Breaking up pavement |
|
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|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Kick Ripper, Saw-and life
method |
R2 |
1 |
103 |
100% |
103 |
103.0 |
103.00 |
|
|
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|
|
|
|
| Excavation of Trench |
|
|
|
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|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Excavator
(mini) |
BS C.3, item 108 |
1 |
97 |
100% |
97 |
|
|
|
| Hand-held breaker |
CNP 024 |
1 |
108 |
100% |
108 |
|
|
|
| Air
Compressor |
BS C.7, item 17 |
1 |
90 |
100% |
90 |
|
|
|
| Lorry (mini) |
BS C.8, item 25 |
1 |
96 |
100% |
96 |
108.6 |
108.64 |
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|
|
| Installation of Pipes and
Bedding |
|
|
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|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Mobile crane (mini) |
BS C.7, item 118 |
1 |
99 |
100% |
99 |
|
|
|
| Lorry (mini) |
BS C.8, item 25 |
1 |
96 |
100% |
96 |
100.8 |
100.76 |
|
|
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|
|
|
|
| Backfilling |
|
|
|
|
|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-Time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Compactor |
CNP 050 |
1 |
105.0 |
100% |
105.0 |
105.0 |
105.00 |
|
|
|
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|
|
|
| Reinstating Road Surface |
|
|
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|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Lorry (mini) |
BS C.8, item 25 |
1 |
96 |
100% |
96 |
|
|
|
| Concrete
mixer (electric) |
CNP 045 |
1 |
96 |
100% |
96 |
|
|
|
| Air
Compressor |
BS C.7, item 24 |
1 |
95 |
100% |
95 |
|
|
|
| Vibratory poker, hand-held
(Electric) |
BS 5228, Table C.6, item 40 |
1 |
98 |
100% |
98 |
102.4 |
102.41 |
|
| Note: |
|
|
|
|
|
|
| BS BS5228 (1997) Part 1 Noise and Vibration
Control on Construction and open sites |
|
|
|
| R2
- Commercially available quiet concrete demolition method in Hong Kong |
|
|
|
|
| DREDGING |
|
|
|
|
|
|
| |
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Derrick barge |
CNP 061 |
1 |
104 |
100% |
104 |
|
|
|
| Dredger, grab |
CNP 063 |
1 |
112 |
100% |
112 |
4.0 |
112.64 |
|
| |
|
|
|
|
|
|
|
| Submarine Outfall |
|
|
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|
|
| Erection of Steel Working Platflorm |
|
|
|
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|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Setting up Steel Working Platform |
|
|
|
|
|
|
|
|
| Air Compressor |
CNP 003 |
1 |
104 |
100% |
104 |
|
|
|
| Percussion Drill rig, equiped with
down the hole hammer |
CNP 072 |
1 |
110 |
100% |
110 |
|
|
|
| Generator |
CNP101 |
1 |
108 |
100% |
108 |
|
|
|
| Crane |
CNP 048 |
1 |
112 |
100% |
112 |
|
|
|
| Barge |
CNP 016 |
1 |
104 |
100% |
104 |
8.0 |
115.70 |
|
| Grouting |
|
|
|
|
|
|
|
| Generator |
CNP101 |
1 |
108 |
100% |
108 |
|
|
|
| Grout Pump |
CNP 106 |
1 |
105 |
100% |
105 |
4.0 |
109.76 |
|
| Installation of Steel Casing in Rock |
|
|
|
|
|
|
|
| Air Compressor |
CNP 003 |
1 |
104 |
100% |
104 |
|
|
|
| Percussion Drill rig, equiped with
ODEX |
CNP 072 |
1 |
110 |
100% |
110 |
4.0 |
110.97 |
|
|
|
|
|
|
|
|
|
| Erection of Scaffold |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Generator |
CNP101 |
1 |
108 |
100% |
108 |
|
|
|
| Vibrating Hammer |
CNP 172 |
1 |
115 |
100% |
115 |
|
|
|
| Barge |
CNP 016 |
1 |
104 |
100% |
104 |
5.8 |
116.07 |
|
|
|
|
|
|
|
|
|
| Drilling and Installation
of HDPE Pipeline |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
On-time |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
% |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Horizontal Drilling System1 |
CNP 101 |
1 |
108 |
100% |
108 |
5.8 |
|
|
| Direct-drive mixing system1 |
CNP 101 |
1 |
108 |
100% |
108 |
|
| Reclaimer2 |
CNP 282 |
1 |
103 |
100% |
103 |
|
| Note: |
|
|
|
|
|
|
|
| 1 based on diesel
generator |
|
|
|
|
|
|
|
| 2 based on water pump |
|
|
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|
|
|
|
|
| Appendix 4.2 |
|
|
|
|
|
|
|
| Assumed Operation Equipment for
STW |
|
|
|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
Screening* |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
dB(A) |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Submersible water pump |
CNP 283 |
2 |
85 |
10 |
78 |
|
|
|
| Equalisation transfer pump |
CNP 283 |
1 |
85 |
10 |
75 |
|
|
|
| Effluent lift pump |
CNP 283 |
1 |
85 |
10 |
75 |
|
|
|
| Sludge recycling pump |
CNP 283 |
2 |
85 |
10 |
78 |
|
|
|
| Sludge wasty pump |
CNP 283 |
2 |
85 |
10 |
78 |
|
|
|
| Sludge pump |
CNP 283 |
1 |
85 |
10 |
75 |
|
|
|
| Air blower |
estimate1 |
1 |
102 |
10 |
92 |
|
|
|
| Filter press |
estimate1 |
1 |
94 |
|
94 |
|
|
|
| Deodouriser |
estimate1 |
1 |
79 |
|
79 |
18.6 |
96.49 |
|
|
|
|
|
| Assumed Operation
Equipment for Pumping Station |
|
|
|
|
|
|
|
|
| Powered Mechanical Equipment |
Reference |
No. Items |
SWL/Item |
Screening* |
Sub-total |
Total SWL |
Total SWL |
|
| (PME) |
|
|
dB(A) |
dB(A) |
SWL dB(A) |
dB(A) |
dB(A) |
|
| Submersible water pump |
CNP 283 |
1 |
85 |
10 |
75 |
|
|
|
| Deodouriser |
CNP 241 |
1 |
79 |
|
79 |
10.4 |
80.46 |
|
|
|
|
|
| Note: |
|
|
|
|
| * Assume 10 dB(A) noise reduction for
equipment placing in enclosure |
|
|
|
|
| 1 Estimated SWLs of the
equipment obtained from contractors |
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