2.1
The
proposed Hong Kong - Zhuhai - Macao Bridge Hong Kong
Link Road (HKLR) is 12km long connecting the Hong Kong-Zhuhai-Macao
Bridge (HZMB) at the HKSAR Boundary with the Hong Kong Boundary Crossing
Facilities (HKBCF) situated at the north eastern waters of the Hong Kong
International Airport, opening a new and direct connection route between Hong
Kong, Macao and the Western Pearl River Delta.
2.2
The
HKLR comprises a 9.4km long viaduct section from the HKSAR boundary to Scenic
Hill on the Airport Island; a 1km tunnel section to the reclamation formed
along the east coast of the Airport Island and a 1.6km long at-grade road
section on the reclamation connecting to the HKBCF. The tunnel section of HKLR
will pass under Scenic Hill, Airport Road and Airport Railway to minimize the
environmental and visual impacts to Tung Chung residents.
2.3
An
application (No ESB-110/2003) for an Environmental Impact Assessment (EIA)
Study Brief under Section 5(1) of the Environmental Impact Assessment Ordinance
(EIAO) was submitted by Highways Department (the Project Proponent) on 8
October 2003 with a Project Profile (No. No. PP-201/2003) for the Hong Kong - Zhuhai - Macao Bridge Hong Kong Section and North Lantau Highway Connection. The Hong Kong - Zhuhai - Macao Bridge Hong Kong Section and North Lantau Highway Connection has subsequently been renamed as
HKLR. EPD issued an EIA Study Brief
(No: ESB-110/2003) in November 2003 to the Project Proponent to carry out an
EIA study.
2.4
An EIA
Study (Reg. No. AEIAR-144/2009) has been undertaken to provide information on
nature and extent of environmental impacts arising from the construction and
operation of HKLR. The Environmental Permit was issued on 4 November 2009
(Permit No. EP-352/2009). Pursuant to Section 13 of the EIAO, the Director of
Environmental Protection amends the Environmental Permit (No. EP-352/2009)
based on the Application No. VEP-339/2011 and the environmental Permit (Permit
No. EP-352/2009/A) was issued on 9 November 2011 for HKLR to the Highways
Department as the Permit Holder. Subsequently, the Director of Environmental
Protection amends the Environmental Permits (No. EP-352/2009/A and EP-352/2009/B)
based on the Application No. VEP-409/2013 and VEP-411/2013 respectively. The
environmental Permit (Permit No. EP-352/2009/C) was then issued on 5 September
2013.
2.5
Figure 1a-d
shows the layout of the Contract and the scope of the Contract works comprises the following major items:
·
a dual 3-lane
carriageway in the form of viaduct from the HKSAR boundary (connecting with the
HZMB Main Bridge) to the Scenic Hill (connecting with the tunnel under separate
Contract No. HY/2011/03), of approximately 9.4km in length with a hard shoulder
for each bound of carriageway and a utilities trough on the outer edge of each
bound of viaducts;
·
a
grade-separated turnaround facility located near San Shek
Wan, composed of sliproads in the form of viaduct
with single-lane carriageway bifurcated from the HKLR mainline with an elevated
junction above the mainline;
·
provision
of ancillary facilities including, but not limited to, meteorological
enhancement measures including the provisioning of anemometers and modification
of the wind profiler station at hillside of Sha Lo
Wan, provisioning of a compensatory marine radar, and provisioning of security
systems; and
·
associated
civil, structural, geotechnical, marine, environmental protection, landscaping,
drainage and highways electrical and mechanical (E&M) works, street
lightings, traffic aids and sign gantries, marine navigational aids, ship impact
protection system, water mains and fire hydrants, lightning protection system,
structural health monitoring and maintenance management system (SHM&MMS),
supervisory control and data acquisition (SCADA) system, as well as operation
and maintenance provisions of viaducts, provisioning of facilities for
installation of traffic control and surveillance system (TCSS), provisioning of
facilities for installation of telecommunication cables/equipments and reprovisioning works of affected existing facilities/utilities.
2.6
Different
parties with different levels of involvement in the Contract organization
include:
Ÿ Supervising
Officer’s Representative (SOR) – Ove Arup &
Partners Hong Kong Limited (ARUP)
Ÿ Contractor
–Dragages -China Harbour-VSL
JV (DCVJV)
Ÿ Environmental
Team (ET) – Cinotech Consultants Ltd. (Cinotech)
2.7
The
proposed project organization and lines of communication with respect to the
on-site environmental management structure are shown in Figure 2. The key personnel contact names and numbers are
summarized in Table 2.1.
Table 2.1 Key Contacts of the Contract
|
Party |
Position |
Name |
Phone No. |
Fax No. |
|
SOR (ARUP) |
CRE |
Mr. Michael Chan |
3767 5803 |
3767 5922 |
|
Mr. Colin Meadows |
3767 5801 |
|||
|
ENPO/IEC (Environ) |
Environmental Project Office Leader |
Mr. Y. H Hui |
3465 2888 |
3465 2899 |
|
Independent Environmental Checker |
Mr. Antony Wong |
3465 2888 |
3465 2899 |
|
|
Contractor (DCVJV) |
Deputy Project Director |
Mr. W.K Poon |
3121 6638 |
3121 6688 |
|
Environmental Officer |
Mr. CHU Chung Sing |
3121 6672 |
||
|
24-hour Hotline |
-- |
6898 6161 |
-- |
|
|
ET (Cinotech) |
Environmental Team Leader |
Dr. H.F Chan |
2151 2088 |
3107 1388 |
2.8
ENVIRON
Hong Kong Ltd. (Environ) is employed by the Highways Department as the
Independent Environmental Checker (IEC) and Environmental Project Office (ENPO)
for the Project.
2.9
A copy of Contractor’s
construction programme is provided in Appendix A.
Summary of Construction Works Undertaken During Reporting Period
2.10 The major site activities undertaken in the reporting period included:
December 2013:
Land
Viaduct (P84 to Eastern Abutment at SHT) and Preparation Works
(a) Land piling
works are in progress with total 15 and21 nos. of pile concreted in Portion C
and Portion A respectively. 6 piles were concreted in this reporting period.
All land piling machines are carrying out piling works in Portion A due to pending of
existing drainage, watermain and
Communication Cable (COM cable)
of Airport Authority (AA)
division in Portion C;
(b) 18 pours of column were completed with 6
pours in this reporting period;
(c)
Rebar threading for coupler continues in Portion C;
(d) Hong Kong Airport Authority’s permit
for formations of piling platform at P82 & P83 is still pending;
(e)
Tree transplanting was completed and maintenance works commenced.
(f) Drainage diversion work remains in
progress with laying of approximately 60m of 1200mm diameter pipe and
50m of 1350mm diameter pipe. Excavation works and ELS are in
progress;
(g)
Installation of portal beam at P109 is in progress;
(h) Earth Lateral Support (ELS) for pile
cap construction at P111 and P112 were completed. Pouring of pile cap
at P111L was
completed and P111R are
in progress. Pile head breaking at P112 L & R are
also in progress;
(i) Formation work for Portal P110 was
commenced.
Marine Viaduct (P0 to P84)
RCD Method:
(j)
Construction of temporary jetty works at P68 is in progress;
(k) Installation of temporary casings at P55
& P59 is in progress;
(l)
Piling jackets were installed at P14, P22, P56, P57, P72
& P77;
(m)
Permanent casings were installed at P14L, P22L, P56R, P57R, P72R & P77R;
(n)
Pile excavation by RCD method in progress at P14, P22, P55, P56, P57 & P66 with 25 piles concreted in this reporting
period;
(o) Piling jackets were dismantled at P22R,
P55L &P66;
(p)
Works with cofferdam:
Driving of sheet piling at P74 was commenced; Temporary platform at P71
was installed.
(q)
Inter-face coring tests were carried out at P46, P47 & P71;
(r)
Full depth coring tests were carried out at P71R-3;
(s)
Sonic tests were carried out at P71 & P73;
(t)
Grouting works were carried out at P47 & P71;
(u)
Barges moved back to Airport Channel on 23 Nov 13.
Kelly Method:
(v)
Installation of temporary piles, platforms and permanent casings at P17,
P18, P36 were carried out;
(w)
Piling platform at P20 and P44 were removed;
(x)
Pile excavation by Kelly method in progress at P19, P42, P37, P38, P39 with 17 piles concreted in this reporting period;
(y) P0 L & R precast shells were
installed. Trimming of pile head is in progress;
(z) Inter-face Coring Test and
sonic test were carried out
to completed piles at P20, P40, P48 and P7
Casting
Yard / Floating Batching Plant
Progress of the precast concrete segment
casting yard:
-
Construction of the two load-out jetties completed; test and
commissioning under process.
- All
gantries (18 nos.) erected; 7 nos. tested and commissioned; 11 nos. under
testing and commissioning.
- Mould
fabrications are on-going with 1 no. “Type “B”, 8 nos. “Type A” (including 2 no.
Segments on pier (SOP)’s), 2 nos. Type
D moulds and 1 no. “Type CH2” (long spans) assembled; other “Type CH”
and “Type CP”
mould fabrication continues
at casting yard.
- Rebar
jigs fabrication and installation continues with 18 of 30 nos. completed
- Rebar
and PT material delivery continues
-
A total of
64 segments concreted in
this reporting period and
up to end
of the reporting period total 150 segments casted. The floating concrete
batching plant 1602 is in operation with 7 piles concreted;
Casting
Yard for Precast Concrete Shell for Pilecap
3 nos. (cumulative 7 nos.) of CP1 precast
shells were cast in precast yard and 2 nos. of CP1 precast shells were
installed at Pier P0 in this reporting period.
January 2014:
Land Viaduct
(P84 to Eastern Abutment at SHT) and Preparation Works
(a) All land piling machines are
carrying out piling works in
Portion A due
to pending the completion of
diversion of existing drainage & watermain and the commencement of COM cable of AA
division in Portion C;
(b) P114 area site formation for piling works
was completed. Pile P114R was excavated to rock head and drilling of rock
socket is in progress;
(c) AA
COM cable slewing was
completed and backfilled. Piling equipment for Pile P113C was
mobilized on site and pile excavation started;
(d) 27 pours of column were completed with
9 pours in this reporting period;
(e)
Rebar threading for coupler continues in Portion C;
(f)
AAHK’s permit for
the construction of
the carriageway diversion and formations of piling platform at P82
& P83 is still pending for approval;
(g)
Tree transplanting was completed and its maintenance works are on-going.
(h) Drainage diversion works remains in progress. Most pipes were laid except some pipes at
manhole connection. MH2, MH3 & MH4 were completed. Backfilling was
partially completed;
(i) Waling of
ELS for pile cap construction at P111 L & R and
P112 L & R were removed upon completion of pile
cap and backfilled up to the top level of the pile cap.
(j)
The erection of the supporting false work (brackets and
main carrier beams) for the portal beam construction at
P109 was completed. Erection of side formwork for the portal
and kickers are in progress;
(k) Formation work for Portal P110 was in
progress.
Marine Viaduct (P0 to P84)
RCD Method:
(a)
Construction of temporary jetty for piling works atP68 is in progress;
(b) Piling jackets were installed at P14R,
P56L, P57L, P76R;
(c)
Permanent casings were installed at P14R, P55R, P56L, P59L, P59R & P77R;
(d)
Pile excavations are in progress at P14, P22, P55, P56, P57, P59, P72 & P77;
(e) Piling jackets were dismantled at P14L,
P55R, P57R & P73L;
(f)
Inter-face coring tests were carried out at P46, P50, P51, P65, P66 & P73;
(g)
No Full depth coring tests was carried out in this reporting period;
(h)
Sonic tests were carried out at P46, P50, P65
& P73;
(i) Grouting works were carried out at P46
& P73;
Kelly Method:
(j)
Installation of temporary piles were carried out atP16 (friction test
pile), P17, P18, P32, P33, P34, P35 & P36;
(k)
Installation of platforms were carried out at
P16, P17, P18, P35 & P36;
(l) Installation of permanent casing were carried out at P16, P18, P35 & P36;
(m) Piling platform removal and
temporary pile extraction were carried out
at P20, P38, P40 & P44;
(n)
Pile excavation by Kelly method are in progress
at P16, P18, P19, P37 & P39;
(o)
Trial water cracking and trial shaft grouting at P18-L5 was completed;
(p)
Inter-face core test were carried out at P20, P37, P42, P45 & P49;
(q)
Sonic tests were carried out at P20, P44 & P49.
Pilecap Construction:
(r)
P0-L&R precast shells waterproofing works and stage one reinforced
concrete works was completed. Stage two reinforced concrete works is in
progress. Casting is scheduled to complete before end of January 2014;
(s) Installation of precast shells at P47
and P48 were completed. Waterproofing and stage 1 reinforced concrete works is
in progress;
(t)
Preparation work for
the installation of
the precast shells for
pilecap construction at P46 is in progress;
(u)
Advanced concrete breaking works inside the permanent steel casing at
P20 and P44 has commenced;
(v) Works with cofferdam: Driving of sheet
piling at P74 was carried out; driving of sheet piling at P71 was commenced.
Precast
Segment
(w) Progress of the precast concrete
segment casting yard:
-
Test and commissioning of the two load-out jetties are in progress;
- All gantries in total of 18 nos. were erected.
7 nos. gantries were tested and commissioned and the remaining 11 nos. gantries
areunder processing;
-
Mould fabrications for 1 no. Type B, 10 nos.
Type A(including 2 no. SOP’s), 2
nos. Type D, 1 no. Type DT, 4 nos. Type E, and
1 no. Type CH2 (long spans) were assembled. Other Type CH and Type CP mould
fabrication continues at the casting yard;
-
Rebar jigs fabrication and
installation continues with 18
of 30 nos. completed;
-
Rebar and PT material delivery continues;
-
A total of 13 segments were cast in this reporting period and up to end
of the reporting period total 169 segments cast.
Precast
Concrete Shell Casting and Installation
3 nos. (cumulative 10 nos.) of CP1 precast shells and 1 no. (cumulative
1 no.) of CP4 precast shell were cast in precast yard.
February 2014:
Land Viaduct (P81 to Eastern Abutment at SHT) and Preparation Works
(a) All land piling machines are carrying out
piling works in Portion A and P114L due to pending the completion of diversion
of existing drainage & watermain and Communication Cable (COM cable) of Airport
Authority (AA) in Portion C;
(b) Piling work for P84
started;
(c) Pile P114R rock excavation was completed
with founding level inspected. Rebar cage installation and concreting will be
carried out after completion of Pile P114L due to space constraint;
(d) Pre-drilling at P106L
started;
(e) 31 pours of column were
completed with 4 pours in this reporting period;
(f) Rebar threading for
coupler continues in Portion C;
(g) Hong Kong Airport Authority’s permit for the construction of the
carriageway diversion at P82 & P83 was received and site set up works
started;
(h) Hong Kong Airport
Authority’s permit for formations of piling platform at P82 & P83 is still
pending for approval;
(i)
Tree transplanting was completed and its maintenance works are on-going;
(j) Drainage diversion works
mostly completed;
(k) Water pipes laying for
water main diversion were mostly completed. Connection to existing water main pipe and
testing is pending for
AAHK’s permit;
(l) Waling of
ELS for pile cap
construction at P111-L&R were removed upon completion of pile cap and
backfilled up to the top level of the pile cap;
(m) Wailing of ELS and
backfill at P112 started;
(n) All side formwork and
wing slab soffit for Portal P109 were completed. Steel fixing is in progress;
(o) At portal P110, side
formwork and wing slab soffit formwork were completed. Steel fixing for bottom
mat and side bars are in progress.
Marine
Viaduct (P0 to P84)
RCD Method:
(a) Construction of
temporary jetty for piling works atP68 remains in progress;
(b) Piling jackets were
installed at P61, P28L, P64 & P72L;
(c) Piling jackets were
dismantled at P22, P56 & P72R;
(d) Permanent casings were installed or
spliced at P14R, P57L, P59, P61, P70, P76R & P72R;
(e) Pile excavations are in
progress at P14, P22, P57, P59, P61, P70, P72, P76 & P77 with 25 piles
concreted in the reporting period;
(f) Inter-face coring tests
were carried out at P50, P66 & P73;
(g) Full depth coring tests
was carried out at P50;
(h) Sonic tests were carried
out at P51, P65 & P66;
(i)
Grouting works were carried out at P50 & P65;
Kelly Method:
(j) Installation of
temporary piles were carried out atP30, P31 & P32;
(k) Installation of
platforms were carried out at P17, P31, P33 & P34;
(l) Installation of
permanent casing were carried out at P33 & P34;
(m) Piling platform removal and
temporary pile extraction were carried out
at
P19, P37, P39, P40 & P42;
(n) Pile excavation by Kelly
method are in progress at P16, P18, P19, P37 &
P39;
(o) Pile excavation by Kelly
method are in progress at P18, P19, P35 & P36 with 13
piles concreted in the reporting period;
(p) Friction test pile at
P16: load test were carried out from 24 – 28 Feb 14;
(q) Inter-face core test
were carried out at P20, P37, P39, P40, P42, P45, P49 &
P78;
(r) Full depth coring
tests for P37-L3 and P42-R1 are in progress;
(s) Sonic tests were
carried out at P20, P44 & P49.
Pilecap Construction:
(t) P0 - stage 2 concreting
for pile cap was completed;
(u) P46 - Installation of precast shells and waterproofing works were
completed. Pile trimming works are in progress;
(v) P47 – Installation of precast shells and 1st stage
concreting were completed. Reinforcement fixing for 2nd stage concreting is in
progress;
(w) P48 – Installation of
precast shells were completed;
(x) Preparation works for
the installation of
the precast shells for
pilecap construction at P44 are in progress;
(y) Advanced concrete breaking works (pile head trimming) at
P20, P43 & P49 are in progress whereas the works in
P65 has been commenced;
(z) Works
with cofferdam: Driving of sheet piling at P71 in progress; erection of
temporary working platform for sheet piling at P73R in progress.
Column Construction
(a)
P0-L&R
steel fixing to the columns are in progress. Concreting is scheduled on March
2014 and 5 March 2014 for P0-R and P0-L respectively.
Deck Erection
(b) Preparatory works for erection equipment are
underway:
-
Lifting
Frame LF2-1 fabrication commenced in Dongguan;
-
Modification
for P109 Loading Installation commenced at Portion C.
Precast Segment
(a) Progress of the precast concrete segment casting yard:
- Test and commissioning of
the two load-out jetties are in progress;
- All gantries, in total of 18 nos., were erected. 7nos. gantries were
tested and commissioned and the remaining 11 nos. gantries are under
processing;
- Mould assembly for 1 no.
Type B, 10nos. Type A (including 2 no. SOP’s), 2nos. Type D,
4nos. Type E (with 3 checked by survey), 1 no. Type CH2 (long spans) were
assembled. Other Type CH and Type CP mould fabrication continues at the casting yard;
- Rebar jigs fabrication and
installation continues with 24 of 30 nos. (18 in Line No. 2 and 6 in Line No.
6) completed;
- Rebar and prestress tendon (PT) material delivery continues;
- A total of
22 segments were cast in
this reporting period and
up to end
of the reporting period
total 191 segments cast.
Precast Concrete Shell Casting
(b) 2 nos. (cumulative 12 nos.) of
CP1 precast shells and
no (cumulative 1
no.) CP4 precast shell were cast in the reporting period.
2.11
The
valid environmental licenses and permits were attached in the Monthly EM&A
Reports.